Patents Issued in December 25, 2008
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Publication number: 20080317285Abstract: With a digital still camera, a user freely detects a smiling face on a touchpanel displaying a through image and selects a subject having that smiling face. The digital still camera displays the smiling face as a smiling face detection target and a non-target detected face on the through image in a distinctly different manner to discriminate the smiling face detection target from the non-target detected face. For example, when persons in an event such as a party are photographed in a relatively large viewing angle, an auto photographing operation may be performed in response to smiling face detections on condition that at least two members in the party are smiling.Type: ApplicationFiled: May 23, 2008Publication date: December 25, 2008Applicant: Sony CorporationInventor: Hiroshi Abe
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Publication number: 20080317286Abstract: A security device and system is disclosed. This security device is particularly useful in a security system where there are many security cameras to be monitored. This device automatically highlights to a user a camera feed in which an incident is occurring. This assists a user in identifying incidents and to make an appropriate decision regarding whether or not to intervene. This highlighting is performed by a trigger signal generated in accordance with a comparison between a sequence of representations of sensory data and other corresponding sequences of representations of sensory data.Type: ApplicationFiled: May 27, 2008Publication date: December 25, 2008Applicant: SONY UNITED KINGDOM LIMITEDInventors: Jonathan Richard Thorpe, Morgan William Amos David
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Publication number: 20080317287Abstract: Kalman filter processing is applied to each of successive images of a scene obscured by fog, captured by an onboard camera of a vehicle. The measurement matrix for the Kalman filter is established based on currently estimated characteristics of the fog, and intrinsic luminance values of a scene portrayed by a current image constitute the state vector for the Kalman filter. Adaptive filtering for removing the effects of fog from the images is thereby achieved, with the filtering being optimized in accordance with the degree of image deterioration caused by the fog.Type: ApplicationFiled: June 12, 2008Publication date: December 25, 2008Applicants: DENSO CORPORATION, National University Corporation Hokkaido UniversityInventor: Miki Haseyama
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Publication number: 20080317288Abstract: An image processing system and the like capable of improving recognition accuracy of a lane mark are provided. According to the image processing system of the present invention, a first processing unit (110) recognizes a lane mark candidate on the basis of the luminance of each pixel in a road image. Moreover, there are evaluated a first index which represents continuity of an edge of the lane mark candidate, a second index which represents conformance between the width of the lane mark candidate and a lane mark standard width, and a third index which represents uniformity of the luminance of pixels contained in the lane mark candidate. According to the first, second, and third indices, a second processing unit (120) recognizes a lane mark candidate most likely to be a true lane mark as a lane mark.Type: ApplicationFiled: March 28, 2006Publication date: December 25, 2008Inventors: Tomoyoshi Aoki, Sachio Kobayashi, Naoki Mori, Takuma Nakamori
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Publication number: 20080317289Abstract: There is provided an image processing apparatus including motion vector extracting means for extracting a motion vector on a pixel basis from each of a plurality of input images, direct motion vector generating means for generating a direct motion vector to a pixel on an image for processing from a pixel on each of the plurality of input images, on the basis of motion vectors extracted by the motion vector extracting means, and synthesizing means for synthesizing the plurality of input images by using a pixel value of the pixel on each of the plurality of input images, on the basis of the direct motion vector generated by the direct motion vector generating means.Type: ApplicationFiled: August 7, 2007Publication date: December 25, 2008Inventor: Hideki OYAIZU
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Publication number: 20080317290Abstract: A disclosed apparatus for forming a fingerprint image includes a partial sensor configured to obtain partial images of a fingerprint of a finger moving over the partial sensor; a reference image storing unit configured to store a reference partial image; and an image difference calculating unit configured to calculate a reference image difference between the reference partial image and a first partial image, to calculate a current image difference between the reference partial image and a second partial image, to calculate an amount of movement and/or a position of the finger based on a ratio of the current image difference to the reference image difference, and to store the second partial image and/or the first partial image as parts of the fingerprint image to be formed if the amount of movement and/or the position of the finger is equal to or greater than a predetermined value.Type: ApplicationFiled: August 27, 2007Publication date: December 25, 2008Inventor: Naoki Tazoe
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Publication number: 20080317291Abstract: An image signal processing apparatus controls display of a moving image and a still image. The image signal processing apparatus includes obtaining means for obtaining a moving image content constituted of a moving image and a still image content constituted of one or more still images, generating means for generating link information indicating a correlation between imaging timings of the moving image content and the still image content, and reproducing means for displaying the moving image content and the still image content correlated each other on a same screen, based on the link information.Type: ApplicationFiled: May 22, 2008Publication date: December 25, 2008Applicant: Sony CorporationInventors: Tetsujiro KONDO, Tsutomu Watanabe
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Publication number: 20080317292Abstract: The claimed subject matter relates to an architecture that can obtain biometric data from a user as the user interacts with a device. Based upon the obtained biometric data, the architecture can determine an identity of the user and automatically apply settings associated with that particular user to the device. The settings can relate to a physical configuration of the device (or aspects, features, and/or peripherals of the device), as well as to a data set employed by the device (or components of the device). As such, a user of the device can benefit from enhanced efficiency, utility, and/or convenience.Type: ApplicationFiled: June 25, 2007Publication date: December 25, 2008Applicant: MICROSOFT CORPORATIONInventors: Nicholas R. Baker, James M. Alkove, James E. Allard, David Sebastien Alles, Steven Drucker, James C. Finger, Todd E. Holmdahl, Oliver R. Roup, David H. Sloo, Curtis G. Wong
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Publication number: 20080317293Abstract: Provided is a finger vein authentication apparatus including a light source for emitting light toward a finger, an image sensor for taking an image of the transmitted light from the finger, a lens apparatus for imaging the transmitted light to the image sensor, and an image processor for processing the taken image. The lens apparatus includes a lens unit, and the image processor extracts a vein pattern of the finger upon correcting the strain of the taken image.Type: ApplicationFiled: February 29, 2008Publication date: December 25, 2008Inventors: Soichi Sakurai, Hitoshi Takizawa, Naoto Miura, Harumi Kiyomizu, Hiroaki Ono, Shigeyuki Sudo, Shoichi Sato
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Publication number: 20080317294Abstract: An authentication apparatus includes a time-information storage unit configured to store a reference time used for authentication; a biometric-information storage unit configured to store biometric information used for authentication; a biometric-information obtaining unit configured to obtain biometric information of a person; a matching-score calculating unit configured to calculate a matching score representing a degree of similarity between the biometric information stored in the biometric-information storage unit and the obtained biometric information; a current-time obtaining unit configured to obtain a current time; a threshold setting unit configured to set a threshold used for authentication, on the basis of the obtained current time and the reference time stored in the time-information storage unit; and an authentication-result determining unit configured to determine success or failure of authentication regarding the obtained biometric information, on the basis of the calculated matching score andType: ApplicationFiled: June 17, 2008Publication date: December 25, 2008Inventor: Yasunari HASHIMOTO
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Publication number: 20080317295Abstract: When a shutter key is operated, characteristic data is acquired. A determination is made as to whether the characteristic data has been acquired, and face image shooting processing is executed on condition that the characteristic data has been acquired. File generation processing is executed, at which a format of a face registration file is generated and the characteristic data and image data are written into the format of this face registration file, thereby generating a single face registration file.Type: ApplicationFiled: April 29, 2008Publication date: December 25, 2008Applicant: Casio Computer Co., Ltd.Inventor: Kayo Koutaki
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Publication number: 20080317296Abstract: A method of controlling a digital image processing apparatus that performs a moving picture photographing mode and a reproduction mode. The method includes the operations of detecting face frames where faces of different persons exist in an operations of storing images of a series of frames in a moving picture file in the moving picture photographing mode, storing representative image frames including face frames selected from the detected face frames in the moving picture photographing mode, and displaying images of the stored representative image frames to indicate the moving picture file in the reproduction mode. The method can be performed by a controller of the digital image processing apparatus.Type: ApplicationFiled: June 5, 2008Publication date: December 25, 2008Applicant: Samsung Techwin Co., Ltd.Inventors: Seung-yun Lee, Tomonaga Yasuda
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Publication number: 20080317297Abstract: A computer-based system is presented for grading facial paralysis, which system is adapted to be operated by a patient, including a camera system for collecting a series of images of the patient's face for analysis by a computer system, and a display which provides visual feedback to the patient so that the computer system can prompt the patient to carry out specific movements or facial exercises. This system is applicable for use in a home environment by a patient.Type: ApplicationFiled: November 27, 2006Publication date: December 25, 2008Inventors: Richard Daniel Willmann, Gerd Lanfermann, Jan Kneissler
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Publication number: 20080317298Abstract: A method and system for matching an unknown facial image of an individual with an image of an unknown twin using facial recognition techniques and human perception is disclosed herein. The invention provides a internet hosted system to find, compare, contrast and identify similar characteristics among two or more individuals using a digital camera, cellular telephone camera, wireless device for the purpose of returning information regarding similar faces to the user The system features classification of unknown facial images from a variety of internet accessible sources, including mobile phones, wireless camera-enabled devices, images obtained from digital cameras or scanners that are uploaded from PCs, third-party applications and databases. The method and system uses human perception techniques to weight the feature vectors.Type: ApplicationFiled: August 27, 2008Publication date: December 25, 2008Applicant: FACEDOUBLE INCORPORATEDInventors: Alex Shah, Charles A. Myers
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Publication number: 20080317299Abstract: Even when multiple document-data images are imposed on a sheet, a paper fingerprint registration can be performed securely with single processing and collation processing can be performed also after cutting of the sheet. An image forming apparatus according to the present invention, the image forming apparatus including: a imposition information acquisition unit acquiring imposition information specified for a sheet to perform acquisition of paper fingerprint; a paper fingerprint acquisition region calculation unit that calculates a region for the paper fingerprint acquisition according to the imposition information acquired by the imposition information acquisition unit; and a paper fingerprint information acquisition unit that acquiring region of paper fingerprint according to the region calculated by the paper fingerprint acquisition region calculation unit.Type: ApplicationFiled: June 6, 2008Publication date: December 25, 2008Applicant: CANON KABUSHIKI KAISHAInventor: Kazufumi Kobashi
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Publication number: 20080317300Abstract: A fingerprint sensing circuit for detecting a fingerprint of a user, including a signal source, at least a sensing unit, a resistor, an electrode, and a detecting circuit. The signal source provides a reference signal. The electrode is coupled to a reference level. The sensing unit generates a sensed value according to the electrode and the fingerprint of the user. The resistor is coupled between the signal source and the output node. The detecting circuit is coupled to the output node. The resistor, the sensing unit, and the electrode constitute a filter circuit to the signal source. At least a first signal is generated to the output node according to the reference signal and the sensed value, and the detecting circuit detects the first signal to generate a corresponding detected result indicative of the fingerprint.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Applicant: MStar Semiconductor, Inc.Inventors: Hung-Chuan Pai, Shou-Fang Chen, Chao-Tung Yang
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Publication number: 20080317301Abstract: The present invention provides a large format fingerprint capture apparatus, system and method that is low power, compact, and lightweight and has a platen area greater than 3.0 square inches. The present system is typically powered, controlled, and exchanges data over a single data/control/power connection to a host PC, e.g., a desk top computer, PDA, or laptop computer although the system can also be used in a wireless fashion with a power subsystem so no physical connections are required. In a preferred embodiment the large format fingerprint device is directly connected to a completely disconnected portable PC, such as a laptop having only a battery power source. The primary system components of the present invention combine to minimize power, size and weight and, thus, enhance portability and battery life. The system typically includes a light source, a prism, a camera (including the lens), and a case.Type: ApplicationFiled: August 19, 2008Publication date: December 25, 2008Inventors: Richard Fenrich, Nicholas Salerno, Jeremy Hutchins, Michael Pedigo, Carl Gaebe
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Publication number: 20080317302Abstract: The invention disclosed herein describes a man-machine interface device for controlling access to electronic devices. The man-machine interface device comprises an electronic display unit including a transparent finger touch sensor region that is seated above the display apparatus, which is responsible for determining the presence and absence of a finger and for generating fingerprint images when a finger is detected. The man-machine interface device also includes a controller unit that is coupled to the display apparatus, the finger touch sensor region, and at least one electronic device. The method of the invention describes a process for authenticating individuals and verifying their security privileges to access sensitive data, based on a finger-touch selection of an icon presented on the display apparatus of the man-machine interface device.Type: ApplicationFiled: August 29, 2008Publication date: December 25, 2008Inventors: David S. Abdallah, Barry W. Johnson, Kristen R. Olvera
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Publication number: 20080317303Abstract: An imaging device includes a light source layer having imaging light source units for radiating the imaging light containing a first wavelength on an object to be imaged, a detection layer having detection elements for detecting the light of the first wavelength radiated from the light source units, and a light-blocking unit interposed between the light source layer and the detection layer. The light source layer is held between the detection layer and the object to be imaged. The light-blocking unit is arranged in such a manner as to block the direct radiation of at least part of the light radiated from the light source units to the detection elements.Type: ApplicationFiled: June 24, 2008Publication date: December 25, 2008Inventors: Yasutaka Konno, Hironori Ueki
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Publication number: 20080317304Abstract: An electoronic apparatus includes a first housing; a second housing that has a periphery having a first edge, and a second edge intersecting the first edge; and a coupling unit that has a first rotation axis in a direction intersecting with the surface of the first housing, and couples the first housing and the first edge of the second housing so that the second housing is rotatable about the first rotation axis with respect to the first housing. The electoronic apparatus further incldues; a fingerprint reading sensor provided on the first edge of the second housing; and an antenna that is incorporated into the second edge of the second housing.Type: ApplicationFiled: June 25, 2008Publication date: December 25, 2008Applicant: FUJITSU LIMITEDInventor: Takashi Iijima
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Publication number: 20080317305Abstract: Source images, in particular images used for the planning radiotherapy, using internal images of the human body obtained with techniques such as X ray techniques, are processed to form a colored composite image that depends in a robust way on differences between different ones of the source images. For each pixel position in the composite image, the maximum image value in the different source images is determined and used to control brightness of the composite image. For each pixel position, an amount of spread in the images values among the source images is determined and used to control a color saturation in the composite image.Type: ApplicationFiled: January 24, 2006Publication date: December 25, 2008Applicant: VU Medisch CentrumInventors: Keith S. Cover, Frank J. Lagerwaard, Suresh Senan
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Publication number: 20080317306Abstract: The invention relates to a method of forming a composite biometric image. The method comprises sensing first and second successive partial images of a biometric object with a sensor during relative movement of the biometric object and the sensor. The sensor comprises an array of sensing elements defining an area smaller than an area of the biometric object to be formed as the composite biometric image and thus the first and second successive partial images overlap each other along a direction of the relative movement. The method also comprises acquiring at least a first image portion and a second image portion from each of the first and second sensed partial images, the first image portion and the second image portion of each comprising different sensed image data along a direction orthogonal to a direction of relative movement of the biometric object and the sensor, the first image portions overlapping with each other, and the second image portions overlapping with each other.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Inventor: Robin Hamilton
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Publication number: 20080317307Abstract: Systems and methods for aligning objects in object sets are provided. An object set has objects that are in a corresponding image in a plurality of images. For each respective object in a first object set, a corresponding object group is constructed that contains the respective object, thereby constructing a plurality of object groups. Similarity metrics are computed between object groups and objects in objects sets in order to assign the objects to object groups. The object groups are then refined in order to align objects in the object sets.Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Inventors: Peng Lu, Ming Zheng, Guochun Liao
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Publication number: 20080317308Abstract: A system and methods for the efficient segmentation of globally optimal surfaces representing object boundaries in volumetric datasets is provided. An optical surface detection system and methods are provided that are capable of simultaneously detecting multiple interacting surfaces in which the optimality is controlled by the cost functions designed for individual surfaces and by several geometric constraints defining the surface smoothness and interrelations. The graph search applications use objective functions that incorporate non-uniform cost terms such as “on-surface” costs as well as “in-region” costs.Type: ApplicationFiled: December 7, 2007Publication date: December 25, 2008Inventors: Xiaodong Wu, Mona Garvin, Michael David Abramoff, Milan Sonka
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Publication number: 20080317309Abstract: Specific information for specifying a specific study or series for which an object, which is obtained by adding at least one information of a scan condition, a scan range, and a key image position as a basis of a diagnosis in an image, is to be generated is specified. It is determined whether or not an image for references is present in the specific study or series on the basis of additional information of at least one image related to the specific study or series. When it is determined that the image for references is present, an object about the specific study or series is generated afterwards, for example, in the unit of series by using the image for references and at least one information of a scan condition, a scan range, and a key image position of the additional information.Type: ApplicationFiled: April 22, 2008Publication date: December 25, 2008Inventors: Muneyasu KAZUNO, Kenichi Niwa, Jun Kawakami, Koichi Terai
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Publication number: 20080317310Abstract: One embodiment discloses a computerized method of assessing deposits and/or blockages in blood vessels in a human, specifically in a human heart. The method may include inputting patient data and creating a computerized interactive model of a heart based on the patient data. Patient data may include a plurality of images of a least a portion of a human heart. Images may include three-dimensional images. An image may be divided into regions. A property of a region may be assessed. A property may include intensity of brightness of a region or a portion of a region. A region may include one or more voxels or one or more pixels. A method may include comparing a property of a region of a heart from a first image to a second image. The first image and the second image may include equivalent regions acquired during different time periods.Type: ApplicationFiled: December 10, 2007Publication date: December 25, 2008Inventors: Mitta Suresh, Jude Dalton
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Publication number: 20080317311Abstract: A region of interest is identified using a conventional CT or X-ray approach. Then, the region of interest is scanned using a plurality of pencil beams (28) to obtain a plurality of different scattered X-ray spectra. A geometric correction is then applied to each spectrum as if the spectrum was solely due to features in the region of interest. The various spectra recorded using the beams are combined and correlated to determine features of the region of interest (32) whilst minimising the effect of features in the rest of the sample (30).Type: ApplicationFiled: September 9, 2005Publication date: December 25, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventors: Michael Grass, Jens-Peter Schlomka, Udo Van Stevendaal
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Publication number: 20080317312Abstract: The present invention relates to a method and an apparatus for guiding an irradiation equipment (2) located outside a human body (1) or an animal body. The method comprises the steps of identifying, in an image (4), a three-dimensional element (7) visible in the image (4), said three-dimensional element (7) has been in position in, or being inserted into, a cavity of the human body (1) or the animal body, establishing, in the image (4), a preliminary position of the three-dimensional element (7) visible in the image (4) in relation to a reference, establishing a preliminary position of the irradiation equipment (2) in relation to the reference, and adjusting the irradiation equipment (2) in response to the position the three-dimensional element (7).Type: ApplicationFiled: June 30, 2006Publication date: December 25, 2008Applicant: PNN MEDICAL A/SInventors: Jesper Carl, Henrik Harboe, Erik Othel-Jacobsen
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Publication number: 20080317313Abstract: A method and related system for generating motion corrected tomographic images includes the steps of illuminating a region of interest (ROI) to be imaged being part of an unrestrained live subject and having at least three spaced apart optical markers thereon. At least one camera is used to obtain images of the markers. Motion data comprising 3D position and orientation of the markers relative to an initial reference position is then calculated. The at least three spaced apart optical markers and the at least one camera are sufficient in quantity and position to avoid multiple epipolar solutions. Motion corrected tomographic data obtained from the ROI using the motion data is then obtained, where motion corrected tomographic images obtained therefrom.Type: ApplicationFiled: May 8, 2008Publication date: December 25, 2008Applicant: UT-Battelle, LLCInventors: James S. Goddard, Justin S. Baba
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Publication number: 20080317314Abstract: Techniques include automatically detecting a lymph node in a scanned image of a body without human intervention, using one or more of three approaches. First, a subset of scanned images is determined, which belongs to one anatomical domain. A search region for lymph tissue is in a particular spatial relationship outside an anatomical object in the domain. Second, scanned images are segmented without human intervention to determine a boundary of a particular lymph node. The scanned images and outline data are received. Some of these embodiments automatically segment by determining an external marker, based on the outline data, and an internal marker, based on a geometric center of the outline data or thresholds determined automatically inside detected edges, or both, for a marker-controlled watershed algorithm. Third, based on lymph node data at a particular time, a second scanned image at a different time is segmented automatically, without human intervention.Type: ApplicationFiled: June 19, 2008Publication date: December 25, 2008Inventors: Lawrence H. Schwartz, Binsheng Zhao, Jiayong Yan
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Publication number: 20080317315Abstract: In a method and magnetic resonance (MR) for correction of movement in the acquisition of MR images of an examination region, wherein the movement that occurs between the acquisition of data of spatially different slices of the examination region is taken into account, data from the examination region are acquired in multiple slices that are acquired in at least two groups, with slices of a second group arranged at least partially between slices of the first group, such that at least one slice of the second group lies between slices of the first group. Correction for movement of the examination region that occurred between the acquisition of data of the slices of the first group and the acquisition of data of an intervening slice of the second group is done by reconstructing a reference data set for the intervening slice from acquired slice data of the first group for the movement correction.Type: ApplicationFiled: June 20, 2008Publication date: December 25, 2008Inventor: Alto Stemmer
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Publication number: 20080317316Abstract: Obtains the position of each of points composing the contour of a specific tissue shown in ultrasonic image data having been acquired at each time phase by pattern matching for each time phase. Obtains motion information of each of parts composing the specific tissue based on the position of each of the points composing the contour. For each time phase, obtain the differential value of the motion information of each of the parts by differentiating the motion information of each of the parts by time, and normalizes the differential value of the motion information. Assigns a color corresponding to the magnitude of the normalized differential value of the motion information to each of the parts displays an ultrasonic image at each time phase and furthermore display each of the parts of the specific tissue shown in the ultrasonic image of each time phase in the assign color.Type: ApplicationFiled: June 23, 2008Publication date: December 25, 2008Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MEDICAL SYSTEMS CORPORATIONInventors: Hiroyuki Ohuchi, Yasuhiko Abe, Tetsuya Kawagishi
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Publication number: 20080317317Abstract: Techniques for accelerated elastic registration include receiving reference scan data and floating scan data, and a first transformation for mapping coordinates of scan elements from the first scan to coordinates of scan elements in the second scan. A subset of contiguous scan elements is determined. At least one of several enhancements is implemented. In one enhancement cubic spline interpolation is nested by dimensions within a subset. In another enhancement, a local joint histogram of mutual information based on the reference scan data and the floating scan data for the subset is determined and subtracted from an overall joint histogram to determine a remainder joint histogram. Each subset is then transformed, used to compute an updated local histogram, and added to the remainder joint histogram to produce an updated joint histogram. In another enhancement, a measure of similarity other than non-normalized mutual information is derived from the updated joint histogram.Type: ApplicationFiled: December 19, 2006Publication date: December 25, 2008Inventors: Raj Shekhar, Carlos Castro-Pareja, Omkar Dandekar
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Publication number: 20080317318Abstract: A method and a workstation are disclosed for visualizing a three-dimensional image data record having a multiplicity of voxels of a heart of a patient, recorded with the aid of an x-ray CT examination carried out with contrast agent present in the bloodstream. In at least one embodiment, the method includes saving the CT image data record including a multiplicity of voxels defined by absorption values, determining the voxels associated with the chamber of the heart by segmenting the chambers of the heart filled with blood containing the contrast agent, removing the image information from the voxels associated with the chambers of the heart, calculating a two-dimensional virtual projection from the remaining CT image data record, and displaying the virtual two-dimensional projection.Type: ApplicationFiled: June 24, 2008Publication date: December 25, 2008Inventors: Michael Scheuering, Fernando Vega-Higuera
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Publication number: 20080317319Abstract: The invention relates to a method for determining an optimal output of an ablation catheter for a myocardial ablation in a patient with the following steps: creation of at least one at least three-dimensional image recording of an ablation region provided for the myocardial ablation using at least one image recording apparatus; at least partial segmentation of the recorded ablation region to obtain segmentation information using a computation apparatus; at least partial determination from the segmentation information of the location-dependent thickness of the myocardium in the ablation region by the computation apparatus; and determination of the optimal output of the ablation catheter, in particular by the computation apparatus or a separate computation apparatus of an ablation catheter system, as a function of the determined myocardium thickness.Type: ApplicationFiled: June 17, 2008Publication date: December 25, 2008Inventor: Stefan Lautenschlager
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Publication number: 20080317320Abstract: According to the present invention, a 3D look-up table and a method for generating the same is provided, taking into account the x-ray spectrum variations in dependence of the cone beam angle caused by the heel effect. The 3D look-up table includes monochromatic attenuation values for all corresponding polychromatic attenuation values for each x-ray spectrum, depending on the cone beam angle. Advantageously, less image artifacts, such as, for example, cupping artifacts, are achieved in the reconstructed images.Type: ApplicationFiled: December 6, 2004Publication date: December 25, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS NVInventors: Udo Van Stevendaal, Thomas Kohler
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Publication number: 20080317321Abstract: A technique for generating DRR (digitally reconstructed radiography) images includes dividing sample points along a ray trajectory through a 3-dimensional dataset of attenuation values into stages. Each of the stages includes a plurality of the sample points. The attenuation values are summed along the ray trajectory for each of the sample points. Intermediate summation values are computed for each of the stages along the ray trajectory and for each of the stages the attenuation values summed within a given stage are summed with a previous stage intermediate summation value calculated for a stage previous to the given stage to generate a given stage intermediate summation value. A final accumulation value being representative of a total attenuation summed along the ray trajectory is calculated.Type: ApplicationFiled: June 25, 2007Publication date: December 25, 2008Inventors: Hui Zhang, Bai Wang, Dongshan Fu
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Publication number: 20080317322Abstract: A method of detecting lung nodules in an anterior posterior x-ray radiograph comprising the steps of: generating candidate regions in image showing changes in contrast above a threshold level, and eliminating false positives by eliminating edges assignable to organs by: identifying edges; categorizing and eliminating rib edges; categorizing and eliminating lung tissue edges, and categorizing and eliminating blood vessels.Type: ApplicationFiled: June 3, 2008Publication date: December 25, 2008Applicant: Siemens Medical Solutions USA, Inc.Inventors: Mausumi Acharyya, Sumit Chakravarty, Dinesh Mysore Siddu, Eliahu Ratner, Alexandra Manevitch, Jonathan Stoeckel
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Publication number: 20080317323Abstract: A computer receives a temporal sequence of x-ray images of an examination region of an examination object. The examination region includes a blood vessel system and tissue supplied with blood. A detection time is assigned in each instance to the x-ray images. The x-ray images correspond locally with one another in terms of pixels and each display a distribution of a contrast agent in the examination region at the respective detection time. The computer determines the temporal course of the temporal derivation of the data values and/or of the average value of the data values of the pixels located in the evaluation region for at least one evaluation region which is standard for all x-ray images. It assigns a type to the evaluation region as a function hereof.Type: ApplicationFiled: June 10, 2008Publication date: December 25, 2008Inventors: Klaus Kinnstaetter, Thomas Redel
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Publication number: 20080317324Abstract: This invention relates to an apparatus for characterizing cells, cell aggregates and/or tissue with an analysis unit which includes means by which morphological parameters of cells, cell aggregates or tissue are detected and which furthermore includes means by which the detected morphological parameters are evaluated for the purpose of the objective morphological characterization of the cells, cell aggregates or tissue. The invention furthermore relates to a method for objectively characterizing cells, cell aggregates and/or tissue.Type: ApplicationFiled: February 10, 2005Publication date: December 25, 2008Inventors: Markus Eblenkamp, Ulrich Steinseifer, Erich Wintermantel
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Publication number: 20080317325Abstract: Photometric and morphometric features derived from multi-mode imaged. An imaging system simultaneously acquires a plurality of images for each cell passing through the field of view of the imaging system. Acquiring a plurality of different images (i.e., bright field, dark field, and fluorescent images) facilitates the determination of different morphological and morphometric parameters. Simultaneously acquiring the plurality of images enables relatively large populations of cells to be rapidly imaged, so that relatively small numbers of cancer cells in a large population of cells can be detected. Initially, known cancer cells are imaged to enable a marker to be identified. Then, a sample that may include cancer cells is imaged to determine if the marker is present.Type: ApplicationFiled: July 28, 2008Publication date: December 25, 2008Applicant: Amnis CorporationInventors: William Ortyn, David Basiji, Luchuan Liang, Vidya Venkatachalam, Philip Morrissey
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Publication number: 20080317326Abstract: A method is provided for ensuring the quality of a sample carrier in connection with performing an analysis of a sample in the sample carrier in an analysis instrument for in vitro diagnosis, wherein the sample carrier is provided with a symbol for confirming the compatibility of the sample carrier with the analysis instrument. The method comprises bringing the sample carrier to an imaging position in the analysis instrument, acquiring an image of the sample carrier, and analysing the acquired image to detect the presence of a symbol for identifying the genuineness of the sample carrier. Where the sample carrier is identified as genuine, the sample carrier is approved for use in the analysis instrument and the analysis instrument is enabled to perform an analysis of the sample in the sample carrier. The analysis comprises irradiating the sample by transmitting electromagnetic radiation through the sample carrier.Type: ApplicationFiled: January 24, 2007Publication date: December 25, 2008Applicant: HemoCue ABInventors: Kenth Svanberg, Fredrik Jonsson
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Publication number: 20080317327Abstract: The present invention involves a computationally efficient method of determining the locations of standard cells in an image of an IC layout. The initial step extracts and characterizes points of interest of the image. A coarse localization of possible standard cell locations is performed and is based on a comparison of the points of interest of an instance of an extracted standard cell and the remaining points of interest in the image. A more rigid comparison is made on the list of possible locations comprising a coarse match and a fine match. The coarse match results in a shortlist of possible locations. The fine match performs comparisons between the template and the shortlist. Further filtering is done to remove the effects of noise and texture variations and statistics on the results are generated to achieve the locations of the standard cells on the IC layout.Type: ApplicationFiled: August 29, 2008Publication date: December 25, 2008Inventors: Vyacheslav L. Zavadsky, Val Gont, Edward Keyes, Jason Abt, Stephen Begg
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Publication number: 20080317328Abstract: The present invention involves a computationally efficient method of determining the locations of standard cells in an image of an IC layout. The initial step extracts and characterizes points of interest of the image. A coarse localization of possible standard cell locations is performed and is based on a comparison of the points of interest of an instance of an extracted standard cell and the remaining points of interest in the image. A more rigid comparison is made on the list of possible locations comprising a coarse match and a fine match. The coarse match results in a shortlist of possible locations. The fine match performs comparisons between the template and the shortlist. Further filtering is done to remove the effects of noise and texture variations and statistics on the results are generated to achieve the locations of the standard cells on the IC layout.Type: ApplicationFiled: August 29, 2008Publication date: December 25, 2008Inventors: Vyacheslav L. Zavadsky, Val Gont, Edward Keyes, Jason Abt, Stephen Begg
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Publication number: 20080317329Abstract: An image feature is calculated based on the image of a detected defect, a coordinate feature is calculated based on position coordinates of the detected defect, and false alarm judgment is performed according to a decision tree constructed by threshold processing to the image feature or the coordinate feature.Type: ApplicationFiled: June 19, 2008Publication date: December 25, 2008Inventors: Hisae Shibuya, Shunji Maeda
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Publication number: 20080317330Abstract: A circuit pattern inspection apparatus and inspection method facilitate the creation of a recipe and the confirmation of a defect. The apparatus and method employ a dialogue-based operation for the creation of a recipe and the confirmation of a defect. Input items (such as contrast, calibration, etc.) for the recipe creation and their purposes are clarified. Input items (such as clustering, filtering, etc.) for the defect confirmation and their purposes are also clarified. The results obtained on the basis of these inputs are registered in the recipe.Type: ApplicationFiled: August 14, 2008Publication date: December 25, 2008Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATIONInventors: Masayoshi TAKEDA, Hirokazu Ito
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Publication number: 20080317331Abstract: There is a need to provide simple, accurate, fast and computationally inexpensive methods of object and hand pose recognition for many applications. For example, to enable a user to make use of his or her hands to drive an application either displayed on a tablet screen or projected onto a table top. There is also a need to be able to discriminate accurately between events when a user's hand or digit touches such a display from events when a user's hand or digit hovers just above that display. A random decision forest is trained to enable recognition of hand poses and objects and optionally also whether those hand poses are touching or not touching a display surface. The random decision forest uses image features such as appearance, shape and optionally stereo image features. In some cases, the training process is cost aware. The resulting recognition system is operable in real-time.Type: ApplicationFiled: June 19, 2007Publication date: December 25, 2008Applicant: Microsoft CorporationInventors: John Winn, Antonio Criminisi, Ankur Agarwal, Thomas Deselaers
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Publication number: 20080317332Abstract: A method and an apparatus determines a geometry of a scene by projecting one or more output image into the scene, in which a time to project the output image is t1. Input images are acquired of the scene, in which a time to acquire each input image is t2, and in which t1>t2 and in which the input image includes a distinguishable stripe of pixels with an edge due to t1>t2. An amount of distortion of the edge is measured from a straight line to determine a geometry of the scene.Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Inventors: Yuri A. Ivanov, Jay E. Thornton, Christopher R. Wren
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Publication number: 20080317333Abstract: Certain embodiments of the present invention provide for a system and method for modeling S-distortion in an image intensifier. In an embodiment, the method may include identifying a reference coordinate on an input screen of the image intensifier. The method also includes computing a set of charged particle velocity vectors. The method also includes computing a set of magnetic field vectors. The method also includes computing the force exerted on the charged particle in an image intensifier. Certain embodiments of the present invention include an iterative method for calibrating an image acquisition system with an analytic S-distortion model. In an embodiment, the method may include comparing the difference between the measured fiducial shadow positions and the model fiducial positions with a threshold value. If the difference is less than the threshold value, the optical distortion parameters are used for linearizing the set of acquired images.Type: ApplicationFiled: June 21, 2007Publication date: December 25, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Dun Alex Li, Joseph Casey Crager, Peter Kelley, Andrey Litvin
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Publication number: 20080317334Abstract: The invention relates to a method and an apparatus for high-resolution deflectometric determination of the local slope and of the three-dimensional shape of an object (6). The apparatus comprises a microscopic imaging system (5, 4, 8) having a numerical aperture (sin u), a focus plane (6a) and a receiving unit (9, 10); an illuminating system (1, 3, 4, 13, 13a) having a grating generator (1) that preferably generates a sine grating (2); and a control and evaluating unit. The object (6) is located in the object space of the imaging system. The illuminating system (13, 13a), which is fashioned as an illuminating system for reflected-light objects or for transmitted-light objects, generates a series of grating images (7), which are projected as virtual images into the object space a distance d from the focus plane of the microscopic imaging system.Type: ApplicationFiled: May 13, 2008Publication date: December 25, 2008Inventor: Gerd Hausler