Contour Plotting Patents (Class 356/2)
  • Patent number: 10422633
    Abstract: The disclosure relates to a method and a determination device for determining a surface shape of an object. In order to build the determination device as compact as possible, according to the invention, the object is illuminated by an illuminating line and illuminating light reflected by the object is directed to a sensor line of the determination device.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: September 24, 2019
    Assignee: Jabil Optics Germany GmbH
    Inventor: Eberhard Piehler
  • Patent number: 10402988
    Abstract: Embodiments of the disclosure provide an image processing apparatus and an image processing method for positioning and identifying signals sources. The image processing apparatus includes an imaging device to capture an image containing a set of pixels, wherein the set of pixels comprises a first subset of pixels representing a plurality of stripes associated with the multiple signal sources; a memory to store the image; a positioning device to determine positions of the multiple signal sources according to the stripes; and an identity determining device to determine identities of the multiple signal sources.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: September 3, 2019
    Assignee: GUANGDONG VIRTUAL REALITY TECHNOLOGY CO., LTD.
    Inventors: Jie He, Jingwen Dai, Congling Wan, Yongtao Hu
  • Patent number: 10397550
    Abstract: A system and method for three-dimensional measurement of surfaces. In one embodiment, a measurement system includes a laser projector, a first camera, and a processor. The laser projector is configured to emit a laser projection onto a surface for laser triangulation. The first camera is configured to provide images of the surface, and is disposed at an oblique angle with respect to the laser projector. The processor is configured to apply photogrammetric processing to the images, to compute calibrations for laser triangulation based on a result of the photogrammetric processing, and to compute, based on the calibrations, coordinates of points of the surface illuminated by the laser projection via laser triangulation.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: August 27, 2019
    Assignee: BP Corporation North America Inc.
    Inventors: Arnaud Dumont, Fred Jallon, Patrick Raymond, Jason Kestner, Madhav Parimi
  • Patent number: 10327627
    Abstract: A plenoptic otoscope captures images used in making a medical diagnosis. For example, the plenoptic data can be processed to produce enhanced imagery of the ear interior, and this enhanced imagery can be used in making a medical diagnosis.
    Type: Grant
    Filed: June 28, 2014
    Date of Patent: June 25, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Kathrin Berkner, Lingfei Meng, Ivana Tosic, Nikhil Balram
  • Patent number: 10304187
    Abstract: According to an embodiment, an image processing apparatus includes an acquirer, first and second calculators, and a selector. The acquirer acquires a first image of an object captured in a first imaging direction and a second image of the object captured in a second imaging direction. The first calculator calculates, for each pixel included in the respective first and second images, likelihood of whether the pixel is included in a region of the object on the basis of feature information indicating image feature. The second calculator calculates, on the basis of the likelihood, a degree of similarity between a region of interest in the first image and a candidate region in the second image. The candidate region is a candidate of a corresponding region corresponding to the region of interest. The selector selects the candidate region serving as the corresponding region on the basis of the degree of similarity.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: May 28, 2019
    Assignee: Toshiba Medical Systems Corporation
    Inventors: Yuki Iwanaka, Takeshi Mita, Yoshiyuki Kokojima
  • Patent number: 10078901
    Abstract: A camera arrangement includes at least one illuminating device for illuminating a plurality of fields of vision. At least one object to be detected is in each of the fields of vision. The camera arrangement also includes at least one objective lens for focusing a beam path which includes at least one of the plurality of fields of vision or for focusing a plurality of beam paths each including at least one of the plurality of fields of vision. A TOF sensor is also provided. The at least one illuminating device, the at least one objective lens and the TOF sensor are arranged with respect to one another and with respect to the fields of vision and the objects in the latter in such a manner that images of the objects can be imaged on the one TOF sensor at the same time or in temporal succession.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: September 18, 2018
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Andreas Eppinger Bergisch, Frank Schliep, Oliver Kirsch, Hannes Rene Boehm
  • Patent number: 9964510
    Abstract: An electrolytic device includes four channels separated by three charged barriers. The device can be used to suppress an eluent stream containing separated sample analyte ions and/or to pretreat a sample stream containing unseparated analyte ions.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: May 8, 2018
    Assignee: DIONEX CORPORATION
    Inventors: Kannan Srinivasan, Sheetal Bhardwaj, Rong Lin
  • Patent number: 9933512
    Abstract: The invention relates to a method for surveying at least one target using a geodetic device. According to said method, a camera of the device captures a visual image and surveys an angle and/or a distance to the target with geodetic precision, the angle and/or distance surveillance being supported or controlled by the visual image. At the same time of capture of the visual image at least two distance points of a distance image are captured as the spatial distribution of discrete distance points in the area of detection. When the visual image and the distance image are correlated with each other, the target is recognized or the measuring process is controlled.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 3, 2018
    Assignee: LEICA GEOSYSTEMS AG
    Inventors: Bernhard Braunecker, Marcel Rohner
  • Patent number: 9843639
    Abstract: A method and apparatus for inter-device communication processing is described. The method includes acquiring first sensing data collected by a first sensor arranged at a first electronic device and second sensing data collected by a second sensor arranged at a second electronic device; determining a first track on the basis of the first sensing data; determining a second track on the basis of the second sensing data; judging the first track and the second track match, and acquiring a first judgment result; when the first judgment result indicates that the first track and the second track match, executing a command related to data transmission to establish between the first electronic device and the second electronic device a transmission channel used for data transmission and/or perform data transmission between the first electronic device and the second electronic device.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: December 12, 2017
    Assignees: LENOVO (BEIJING) CO., LTD., BEIJING LENOVO SOFTWARE LTD.
    Inventors: Xiaoyu Zhou, Xiaobing Guo
  • Patent number: 9835446
    Abstract: A non-contacting deviation measurement system projects a first line and a second line upon a surface of an object. The projections of the first line and second line are arranged to overlap at an intersection line oriented at a nominal location such that when the surface is oriented at the nominal location, the intersection line appears on the surface. As the location of the surface deviates from the nominal location, the first line and second line as projected upon the surface move away from one another. The distance between the lines may be used to calculate the deviation from the nominal location. The deviation calculated may be compared to a predetermined maximum allowable deviation.
    Type: Grant
    Filed: September 14, 2015
    Date of Patent: December 5, 2017
    Assignee: Vista Outdoor Operations LLC
    Inventors: Scott E. Moore, Brett Olin
  • Patent number: 9732479
    Abstract: A method and an apparatus for rolling wheel deflection measurement are disclosed. The apparatus includes a rolling wheel to be moved along a measuring surface in a first direction; a frame extending essentially along the measuring surface in the first direction from at least the rolling wheel; four spaced apart range sensors; a scanner for scanning in a first time interval a number of lines using each of the range sensors, so as to get a corresponding number of virtual images, in which the pixel values represent distances; and a data processor adapted for comparing and matching the virtual images, so as to identify corresponding regions, and for calculating a deflection value using matched pixel values of virtual images from the virtual images based on the identification corresponding regions.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: August 15, 2017
    Assignee: DYNATEST INTERNATIONAL A/S
    Inventor: Jakob Find Madsen
  • Patent number: 9713869
    Abstract: The calibration device combines a work object with an industrial robot and a robot tool. The work object uses a pair of beam projecting lasers and three plane projecting lasers, the laser beams intersecting at a laser intersecting point. The laser intersection point of the laser beams and laser planes represent the location of the reference coordinate system which is selected to be the origin of the robot path being downloaded from the off-line programming. Once this off-line programming is created, the work object is placed onto the fixture on the manufacturing shop floor in the same place as the CAD environment. The user then manipulates the TCP into position of the laser intersection point and the laser planes. The robot is then manipulated down a first laser with the TCP recording a second point along a first laser beam and recording a third point along the opposing laser beam.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 25, 2017
    Inventor: Matthew E. Trompeter
  • Patent number: 9595447
    Abstract: This disclosure provides a detection apparatus configured to detect a moire pattern generated by grid patterns having grid pitches different from each other including: an image-pickup unit configured to pick up an image of the moire pattern; an imaging optical system configured to cause the image-pickup unit to image the moire pattern; and a processing unit configured to process an image-pickup result of the moire pattern imaged by the image-pickup unit, wherein a mark including a plurality of patterns having a width not larger than the resolving power of the imaging optical system arranged in a measuring direction and changed in duty ratio between the widths and intervals of the plurality of patterns is imaged by the image-pickup unit, and the processing unit evaluates the detection apparatus by processing the image-pickup result of the mark picked up by the image-pickup unit.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 14, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Inada, Kazuhiko Mishima, Takafumi Miyaharu
  • Patent number: 9476970
    Abstract: Aspects of the disclosure relate generally to autonomous vehicles. Specifically, the features described may be used alone or in combination in order to improve the safety, use, driver experience, and performance of these vehicles. In particular, the disclosure includes a system and method of determining a vehicle's location based on a comparison of images captured from the vehicle with a database of images.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: October 25, 2016
    Assignee: Google Inc.
    Inventors: Nathaniel Fairfield, Christopher Paul Urmson, Michael Steven Montemerlo
  • Patent number: 9442212
    Abstract: Methods and devices for inspecting liquid are disclosed. According to the method, it is firstly determined whether the package of the liquid is transparent, semi-transparent, or opaque; in a case that the package of the liquid is transparent or semi-transparent, Raman spectrum analysis is implemented by a Raman spectrum module on the inspected liquid to judge whether the inspected liquid is dangerous or is suspected; and in a case that the package of the inspected liquid is opaque, the inspected liquid are inspected by using an X-ray dual-energy scanning technology to judge whether the inspected liquid is dangerous or is suspected. The above solution has advantages that the inspection speed is high, the material can be recognized, it is suitable for various packing materials with various shapes, the accuracy of the inspection result is high or the like.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: September 13, 2016
    Assignee: Nuctech Company Limited
    Inventors: Yumin Yi, Li Zhang, Hongqiu Wang, Huacheng Feng, Jianhong Zhang
  • Patent number: 9443305
    Abstract: A computerized system for displaying and making measurements based upon captured oblique images. The system includes a computer system executing image display and analysis software causing the computer system to display at least one oblique image having corresponding geo-location position data; receive one or more signals indicative of user selection of at least two points on a man-made structure depicted within the at least one oblique image; and calculate at least one measurement between the at least two points on the man-made structure depicted within the at least one oblique image using the geo-location position data associated with the at least one oblique image. The system may calculate at least one measurement using a series of interconnected line segments between at least two points on a geographic structure depicted within the at least one oblique image using the geo-location position data associated with the at least one oblique image.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: September 13, 2016
    Assignee: Pictometry International Corp.
    Inventors: Stephen L. Schultz, Frank D. Giuffrida, Robert L. Gray, Charles Mondello
  • Patent number: 9443159
    Abstract: A computer and a terminal apparatus retain position information about targets. The terminal apparatus includes: a capturing portion that captures an image of the target; a position information acquisition portion that acquires information about a position to capture the target; an orientation information acquisition portion that acquires information about an orientation to capture the target; and a communication portion that transmits the image, the position information, and the orientation information to the computer. The computer identifies at least one first target candidate as a candidate for the captured target from the targets based on the position information about the targets, the acquired position information, and the acquired orientation information. The computer identifies at least one second target candidate from at least the one first target candidate based on a distance from the terminal apparatus to the captured target.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: September 13, 2016
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiki Yumbe, Takashi Hasegawa
  • Patent number: 9384399
    Abstract: The invention relates to a method and system for processing image data obtained from scanning a network infrastructure for the detection and analysis of specific objects of interest, such as powerlines and other overhead conductors, or similar structures. The image data comprises a plurality of co-ordinate points in three-dimensional space, and in order to identify conductors in the network infrastructure, the method involves analyzing the co-ordinate points to identify sets of co-ordinate points indicative of a set of substantially parallel lines, and analyzing the co ordinate points on the basis of said identified substantially parallel lines thereby to allow identification and mapping of hanging catenaries representing said conductors.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: July 5, 2016
    Assignee: FUGRO ROAMES PTY LTD.
    Inventor: James Gordon Bangay
  • Patent number: 9182657
    Abstract: A computerized system for displaying and making measurements based upon captured oblique images. The system includes an image-capturing device capturing oblique aerial images at image-capturing events and issuing image-data signals corresponding to captured images; at least one geo-locating device issuing a corresponding at least one geo-locating signal indicative at least in part of a geo-location of said image-capturing device during each image capturing event; a computer system receiving and storing said image-data signals and said at least one geo-locating signal; and the computer system executing image and data acquiring software reading the image-data signals and the at least one geo-locating signal, and associating each of the image-data signal with a corresponding at least one geo-locating signal for each image-capturing event.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 10, 2015
    Assignee: Pictometry International Corp.
    Inventors: Stephen L. Schultz, Frank D. Giuffrida, Robert L. Gray, Charles Mondello
  • Patent number: 9151607
    Abstract: A system for determining the position and location of a module comprising: a module which includes an optical generator which generates an optical beam; a diffractive element placed in the path of the optical beam which generates an optical pattern; a reference length artifact placed in a location with close proximity to the optical pattern; and a plurality of digital cameras connected to a computer with photogrammetry software and a minimization algorithm installed on the computer; where the digital cameras are set up in different locations to take one or more digital images of the optical pattern, with at least one digital image including the reference length artifact; and where the digital images are downloaded onto the computer and processed by the photogrammetry software to generate optical coordinate data followed by the insertion of the optical coordinate data into the minimization algorithm to generate the position and location of the module.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 6, 2015
    Assignee: UNIVERSITY OF NORTH CAROLINA AT CHARLOTTE
    Inventors: Angela Devon Davies, Brigid Ann Mullany, Edward Phillip Morse, Matthew Alan Davies
  • Patent number: 8982330
    Abstract: A method and an apparatus of profiling a surface are disclosed. The method comprises projecting slit pattern light toward a target object in at least two directions in sequence to obtain pattern images reflected on the target object, obtaining heights by using the pattern images according to the directions, obtaining vector fields showing a direction of maximum variation of height, obtaining confidence indexes of the heights corresponding to the at least two directions, obtaining integrated vector fields by using the confidence indexes and the vector fields, and calculating height of each position of the target object by using the integrated vector fields. Therefore, accuracy is enhanced.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: March 17, 2015
    Assignee: Koh Young Technology Inc.
    Inventor: Evgeny Vorobyev
  • Patent number: 8970823
    Abstract: A device for optically scanning and measuring an environment is provided. The device includes a movable scanner having at least one first projector for producing at least one uncoded first pattern on an object in the environment. The scanner includes at least one camera for recording images of the object provided with the pattern and a controller coupled to the first projector and the camera. The device further includes at least one second projector which projects a stationary uncoded second pattern on the object while the scanner is moved. Wherein the controller has a processor configured to determine a set of three-dimensional coordinates of points on a surface of the object from a set of images acquired by the camera based at least in part on the first pattern. The controller is further configured to register the set of images relative based in part on the stationary second pattern.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: March 3, 2015
    Assignee: FARO Technologies, Inc.
    Inventors: Rolf Heidemann, Martin Ossig, Reinhard Becker
  • Patent number: 8773646
    Abstract: Fiber optic scanner and method for transmitting and receiving optical signals and range imaging camera including fiber optic scanner. The fiber optic scanner includes a light guide array including individual light guides arranged such that a first end has first ends of the individual light guides arranged in an image plane of collimating optics and a second end has second ends of the individual light guides arranged in a circular manner. A central light guide includes a first end arranged at a center of the circularly arranged second ends of the individual light guides and a motor driven reflector arranged to guide light emerging from the circularly arranged ends of the individual light guides into the central light guide.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: July 8, 2014
    Assignee: Eads Deutschland GmbH
    Inventor: Ulrich Schwanke
  • Patent number: 8675047
    Abstract: A detection device of a planar area is provided. The detection device includes an image obtaining section for obtaining a left image and a right image; a planar area aligning section for setting given regions of interest to the obtained left image and the right image, and through use of a geometric transform function that matches the region of interest of the right image with the region of interest of the left image, performing geometric transform to generate a geometric transform image; and a planar area detecting section for detecting a planar area based on the geometric transform image and the region of interest of the right image. The planar area aligning section sets the planar area detected by the planar area detecting section as a given region of interest.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: March 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Morihiko Sakano, Mirai Higuchi, Takeshi Shima, Shoji Muramatsu
  • Patent number: 8619237
    Abstract: Laser-Scanning Intersecting Plane Tomography (L-SIPT) can provide a non-contact imaging geometry that can allow high speed volumetric scanning, such as of non-scattering to moderately scattering tissues. The L-SIPT imaging apparatus can include a first lens, located and configured to receive from a sample light received from different depths of the sample. A first light redirector can be located and configured to receive via the first lens and to redirect light received from the different depths of the sample to provide redirected light to a light detector capable of detecting individual measurements of light at different locations along a first direction.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: December 31, 2013
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Elizabeth Marjorie Clare Hillman, Matthew B. Bouchard
  • Patent number: 8311777
    Abstract: An oven wall three-dimensional profile data (701) representing concave and convex amounts on all over oven walls (14R, 14L) at a right side and left side of a coking chamber (11) is generated by using image signals obtained by a wall surface observation apparatus (200). A resistance index “k” in which a resistance received by pushed coke (15) resulting from a rising gradient existing on the oven wall (14) is indexed is asked by using the oven wall three-dimensional profile data (701). It can be verified that there is a correlation between this resistance index “k” and a pushing load. Accordingly, it is possible to quantitatively evaluate a state of the oven wall (14) affecting on the pushing load.
    Type: Grant
    Filed: February 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Nippon Steel Corporation
    Inventors: Masato Sugiura, Michitaka Sakaida, Koichi Fukuda, Tomoyuki Nakagawa, Akihide Sano, Yoshifumi Morizane, Keisuke Irie
  • Patent number: 8290739
    Abstract: A method for determining a mobility of an object includes the steps of measuring at least a portion of a shape of an object under an initial increment of a weight load of a plurality of increments of a total weight load using a device and measuring at least a portion of the shape of the object under a next increment of a total weight load of a plurality of increments of a weight load using the device. Repeating the measurements until a total weight load is achieved and comparing the measurements from the device under the plurality of incremental weight loads, thereby determining a mobility of at least the portion of said object under the plurality of increments of weight loads. The method further includes adjusting the elevation and angular orientation of a support surface for the object to achieve further measurements and a device for obtaining such measurements. The method further includes comparing the mobility of a present object to a normal-object to determine a deviation.
    Type: Grant
    Filed: September 2, 2009
    Date of Patent: October 16, 2012
    Assignee: Amfit, Inc.
    Inventors: Tony Tadin, Arjen Sundman
  • Patent number: 8243284
    Abstract: A method for measuring the roundness profiles moved forward in longitudinal direction inside a rolling mill, using two laser scanners, respectively provided with a light-sensitive sensor and a laser. At least three shadow edges that fit against the round profile to be measured and enclose the round profile to form a polygon are generated and measured and the corresponding tangents are computed.
    Type: Grant
    Filed: April 1, 2008
    Date of Patent: August 14, 2012
    Assignee: Zumbach Electronic AG
    Inventor: Urs-Peter Studer
  • Patent number: 8194970
    Abstract: A method for producing three-dimensionally structured surfaces of objects, the object surface being created as a reproduction of a three-dimensionally structured original surface with the aid of a machining tool. Accordingly, the topology of the original surface is first determined, a measured depth value being assigned to each surface or grid element, creating a depth map of the original surface. The depth values are evaluated in terms of their influence on the reflective properties of the surface elements and the reflective properties are stored in the form of parameters. The depth values are then modified in accordance with the reflective values and are used as topological data for the electronic control of a machining tool.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: June 5, 2012
    Assignee: Benecke-Kaliko AG
    Inventors: Oliver Stahlhut, Christian Neumann, Michael Mäker
  • Patent number: 8184144
    Abstract: The present invention calibrates interior orientation parameters (IOP) and exterior orientation parameters (EOP). With the calibrated IOPs and EOPs, a remotely controlled camera can quickly obtains corresponding IOPs and EOPs no matter on panning, tilting or zooming. Thus, the remotely controlled camera obtains accuracies on imaging and measuring and obtains wide applications.
    Type: Grant
    Filed: July 19, 2009
    Date of Patent: May 22, 2012
    Assignee: National Central University
    Inventors: Chi-Farn Chen, Li-Yu Chang, Su-Rung Yang
  • Patent number: 8134719
    Abstract: An apparatus for obtaining 3-D surface contour image data of a tooth has a double telecentric optical system disposed to form an image of the surface of the tooth onto an image detector array. A focus adjustment mechanism is actuable to adjust the position of either or both the double telecentric optical system and the image detector array along an optical axis to each of a sequence of focus positions. A control logic processor is in control signal communication with the focus adjustment mechanism to adjust focus position, and is in image data communication with the image detector array for receiving image data obtained by the image detector array and with a memory for storing the received image data corresponding to each of the sequence of focus positions. The control logic processor is further responsive to stored instructions for computing 3-D surface contour image data from the image data.
    Type: Grant
    Filed: March 19, 2010
    Date of Patent: March 13, 2012
    Assignee: Carestream Health, Inc.
    Inventors: Rongguang Liang, Lawrence A. Ray
  • Patent number: 8116853
    Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: February 14, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Douglas P. Hart, Federico Frigerio, Davide M. Marini
  • Patent number: 8112146
    Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: February 7, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Douglas P. Hart, Federico Frigerio, Davide M. Marini
  • Patent number: 8107086
    Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: January 31, 2012
    Assignee: Massachusetts Institute of Technology
    Inventors: Douglas P. Hart, Federico Frigerio, Davide M. Marini
  • Patent number: 8078025
    Abstract: The invention discloses a vehicle dynamic measurement device for comprehensive parameters of rail wear, which comprises a vision sensor, a computer and a milometer. A high-speed image acquisition card and a measurement module are installed in the computer. The vision sensor comprises imaging system for rail cross-section and a raster projector which can project more than one light plane perpendicular to the measured rail. The measurement module is used for calculating vertical wear, horizontal wear, the amplitude and wavelength of corrugation wear. The invention also discloses a vehicle dynamic measurement method for comprehensive parameters of rail wear. The invention can increase the sampling rate of image sensing and acquisition hardware equipment with no need of improving the performance of it, thereby satisfy high-speed on-line dynamic measurement requirements for corrugation wear, and the amplitude and wavelength of corrugation wear can be calculated more precisely.
    Type: Grant
    Filed: October 25, 2008
    Date of Patent: December 13, 2011
    Assignee: Beihang University
    Inventors: Guangjun Zhang, Junhua Sun, Zhenzhong Wei, Fuqiang Zhou, Qingbo Li, Zhen Liu, Qianzhe Liu
  • Publication number: 20110267430
    Abstract: An object of the present invention is to provide a detection device of a planar area, which suppresses matching of luminance values in areas other than a planar area, and non-detection and erroneous detection of the planar area arising from an error in projection transform. The detection device of a planar area includes an image obtaining section for obtaining a left image 100 and a right image 110; a planar area aligning section 30 for setting given regions of interest to the obtained left image 100 and the right image 110, and through use of a geometric transform function that matches the region of interest of the right image with the region of interest of the left image, performing geometric transform to generate a geometric transform image 130; and a planar area detecting section 55 for detecting a planar area 140 based on the geometric transform image 130 and the region of interest of the right image 110.
    Type: Application
    Filed: April 26, 2011
    Publication date: November 3, 2011
    Applicant: HITACHI, LTD.
    Inventors: Morihiko SAKANO, Mirai Higuchi, Takeshi Shima, Shoji Muramatsu
  • Patent number: 7707003
    Abstract: A method and system collects and manipulates information from various sources for the purpose of determining the location of loads of material in a bulk material storage container and tracing the number and identity of bulk material sources, such as farms or processing plants, for loads located within a bulk material storage container. Such production source information is thus uniquely associated with a particular non-liquid bulk material load. Surface mapping of a surface of bulk material stored in a storage container is performed before and after material is added to the container, and are used to determine position of loads within the storage container. Embodiments of the present invention, using knowledge of the position of loads within the container, may be used for the purposes of preplanning and enhancing blended load-out batches.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: April 27, 2010
    Assignee: Bin Tech L.L.L.P.
    Inventors: Timothy C. O'Connor, Guy A. Fromme
  • Patent number: 7684613
    Abstract: In a method for aligning three-dimensional shape data obtained by performing a three-dimensional measurement of an object, photogrammetry of the object with a target mark is performed to obtain a three-dimensional position and a normal vector of the target mark by a calculation, and the three-dimensional measurement of the object is performed to obtain a three-dimensional position and a normal vector of the target mark. Then, determined is a correspondence between the three-dimensional position of the target mark obtained by the photogrammetry and the three-dimensional position of the target mark obtained by the three-dimensional measurement, by using the three-dimensional position and the normal vector of the target mark obtained by the photogrammetry and those of the target mark obtained by the three-dimensional measurement, and three-dimensional shape data obtained by the three-dimensional measurement is aligned based on the correspondence between the three-dimensional-positions of the target marks.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: March 23, 2010
    Assignee: Konica Minolta Sensing, Inc.
    Inventors: Koji Harada, Yoshihisa Abe, Takayuki Mukai
  • Patent number: 7679723
    Abstract: A scanning system for confocal scanning of an object, comprising a light source (1), imaging optics (4) for focusing the light (5) radiated from the light source (1) onto the object (6) to be scanned, and further comprising an image detector (10) for detecting the light (7) from an object point (6?) backscattered from the object (6) and passing through the same imaging optics (4).
    Type: Grant
    Filed: December 1, 2005
    Date of Patent: March 16, 2010
    Assignee: Sirona Dental Systems GmbH
    Inventor: Axel Schwotzer
  • Patent number: 7671998
    Abstract: A measuring method, comprising a step of drawing a line on a surface such as ground surface, a step of performing measurement along the line on a predetermined measurement range including the line, a step of acquiring an image of a range including the predetermined measurement range as an image data, a step of superimposing the image data on a measurement data, and a step of calculating a measurement data of the line from line position in the image data and from the measurement data near the line.
    Type: Grant
    Filed: April 1, 2005
    Date of Patent: March 2, 2010
    Assignee: Kabushiki Kaisha TOPCON
    Inventors: Fumio Ohtomo, Hitoshi Otani
  • Patent number: 7616292
    Abstract: The invention provides an examination apparatus including an objective optical system for positioning a focal point inside a specimen mounted on a stage; an image-acquisition apparatus for detecting light emitted in different optical-axis directions from the vicinity of the focal point inside the specimen and collected by the objective optical system to acquire a plurality of pieces of image information; and a three-dimensional image forming unit for forming a three-dimensional image of a light-emitting site in the vicinity of the focal point based on the plurality of pieces of image information acquired by the image-acquiring apparatus.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: November 10, 2009
    Assignee: Olympus Corporation
    Inventors: Susumu Kikuchi, Yoshihiro Kawano, Masahiro Oba
  • Patent number: 7617068
    Abstract: A method for determining a mobility of foot comprising: measuring at least a portion of a shape of the foot under a first weight load; measuring the at least the portion of the shape of the foot under a second weight load; and comparing the measurement under the first weight load to the measurement under the second weight load, thereby determining a mobility of at least the portion of the foot.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: November 10, 2009
    Assignee: Amfit, Inc.
    Inventors: Tony Tadin, Arjen Sundman
  • Patent number: 7548305
    Abstract: A system for providing shape determination of a planar or quasi-planar surface is disclosed. The system includes a number of targets located on the surface and one or more sensor devices. The sensor devices are configured to monitor the targets and obtain information relating to deflections normal to the plane of the surface. The sensor devices are mounted close to each other and the line-of-sight of each sensor device is at a shallow angle to the plane of the surface. The system further includes processing logic configured to execute a shape reconstruction algorithm based on the information to determine the shape of the surface.
    Type: Grant
    Filed: July 15, 2005
    Date of Patent: June 16, 2009
    Assignee: Lockheed Martin Corporation
    Inventors: Nelson Pedreiro, Roelof W. H. van Bezooijen, Larry Dewell
  • Publication number: 20080218727
    Abstract: The present invention relates to a method and a system for optical imaging of an object in transmission configuration. The method and system obtain contour coordinates of the object using source/detector configurations references and acquire optical data from a region of interest (ROI) of the object. Then, the method and system apply a weighting factor to said optical data as a function of the contour coordinates, and reconstruct an image of the ROI using the weighted optical data and photon diffusion equation.
    Type: Application
    Filed: December 21, 2007
    Publication date: September 11, 2008
    Applicant: ART, Advanced Research Technologies Inc.
    Inventors: Salim Djeziri, Niculae Mincu, Frederic Leblond, Olga Guilman, Xavier Intes, Mario Khayat
  • Publication number: 20080204697
    Abstract: The invention provides for surface mapping of in-vivo imaging subjects using a single camera and a moveable stage on which a subject animal for in-vivo imaging is placed. Images are taken and the stage is moved by known amounts along the optical axis, and the heights of individual features on the subject are determined through analysis of focus, given the known stage displacement. Alternatively, height of sub-regions of the subject are determined through analysis of focus. A mesh or other surface can be constructed from individual features, to provide a surface map of the subject. Accuracy of 0.5 mm or better can be attained for mice and similarly sized subjects.
    Type: Application
    Filed: December 27, 2007
    Publication date: August 28, 2008
    Inventors: Peter Domenicali, Clifford Hoyt, Scott Determan, Peter Miller
  • Publication number: 20080198355
    Abstract: The invention provides for surface mapping of in-vivo imaging subjects using a single camera and an illuminator that projects a plurality of targets such as spots on the subject. By limiting the depth-of-field of the camera lens, or of the illuminator optics, or both, a spatial plane is defined in which the spots are most sharply in focus. Controlled displacement of this plane relative to the subject is achieved through movement of the mechanical stage on which a subject is placed; or through movement of the best-focus plane by adjustment of the camera, lens, or illuminator optics. Images are taken at several relative positions of the best-focus plane and the subject, and the height of individual points on the subject is determined through analysis of focus, given the known displacements. A mesh or other surface can be constructed from individual point locations, to provide a surface map of the subject. Accuracy of 0.5 mm can be readily attained for mice and similarly sized subjects.
    Type: Application
    Filed: December 27, 2007
    Publication date: August 21, 2008
    Inventors: Peter Domenicali, Clifford Hoyt, Peter Miller
  • Publication number: 20080165341
    Abstract: Described is a multiple channel interferometric surface contour measurement system. The measurement system includes a multiple channel interferometer projector, a digital camera and a processor. The projector includes two or more interferometer channels. Each channel has an optical axis spatially separate from the optical axes of the other channels. Each channel projects a fringe pattern onto the surface of an object to be measured. Image data for the fringe patterns projected on the object surface are acquired by the digital camera. The processor controls the projection of the fringe patterns of different spatial frequencies, adjusts the phase of each fringe pattern and generates surface contour data in response to the camera image data. The multiple channel interferometric surface contour measurement system provides numerous advantages over conventional single channel interferometric systems, including reduced sensitivity to optical noise, improved stability and increased measurement accuracy.
    Type: Application
    Filed: April 4, 2006
    Publication date: July 10, 2008
    Applicant: DIMENSIONAL PHOTONICS INTERNATIONAL, INC.
    Inventors: Robert F. Dillon, Neil Judell, Yi Qian, Yuqing Zhu, D. Scott Ackerson, Gurpreet Singh
  • Patent number: 7379601
    Abstract: Complex multidimensional datasets generated by digital imaging spectroscopy can be organized and analyzed by applying software and computer-based methods comprising sorting algorithms. Combinations of these algorithms to images and graphical data, allow pixels or features to be rapidly and efficiently classified into meaningful groups according to defined criteria. Multiple rounds of pixel or feature selection may be performed based on independent sorting criteria. In one embodiment sorting by spectral criteria (e.g., intensity at a given wavelength) is combined with sorting by temporal criteria (e.g., absorbance at a given time) to identify microcolonies of recombinant organisms harboring mutated genes encoding enzymes having desirable kinetic attributes and substrate specificity. Restriction of the set of pixels analyzed in a subsequent sort based on criteria applied in an earlier sort (“sort and lock” analyses) minimize computational and storage resources.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: May 27, 2008
    Assignee: Kairos-Scientific Inc.
    Inventors: Mary Mei-Iing Yang, Edward J. Bylina, William Joseph Coleman, Michael Robert Dilworth, Steven J. Robles, Douglas Charles Youvan
  • Patent number: 7359817
    Abstract: A re-calibration method and device for a three-dimensional visual sensor of a robot system, whereby the work load required for re-calibration is mitigated. While the visual sensor is normal, the visual sensor and a measurement target are arranged in one or more relative positional relations by a robot, and the target is measured to acquire position/orientation information of a dot pattern etc. by using calibration parameters then held. During re-calibration, each relative positional relation is approximately reproduced, and the target is again measured to acquire feature amount information or position/orientation of the dot pattern etc. on the image. Based on the feature amount data and the position information, the parameters relating to calibration of the visual sensor are updated. At least one of the visual sensor and the target, which are brought into the relative positional relation, is mounted on the robot arm.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: April 15, 2008
    Assignee: Fanuc Ltd
    Inventors: Kazunori Ban, Ichiro Kanno
  • Publication number: 20080015812
    Abstract: A system to process requests for wafer structure profile determination from optical metrology measurements off a plurality of structures formed on one or more wafer includes a diffraction signal processor, a diffraction signal distributor, and a plurality of profile search servers. The diffraction signal processor is configured to obtain a plurality of measured diffraction signals of the plurality of structures. The diffraction signal distributor is coupled to the diffraction signal processor. The diffraction signal processor is configured to transmit the plurality of measured diffraction signals to the diffraction signal distributor. The plurality of profile search servers is coupled to the diffraction signal distributor. The diffraction signal distributor is configured to distribute the plurality of measured diffraction signals to the plurality of profile search servers.
    Type: Application
    Filed: July 11, 2006
    Publication date: January 17, 2008
    Applicant: Tokyo Electron Limited
    Inventors: Tri Thanh Khuong, Junwei Bao, Jeffrey A. Chard, Wei Liu, Ying Zhu, Sachin Deshpande, Pranav Sheth, Hong Qui