Abstract: Disclosed inventions relates to methods and systems for encoding at least one watermark into a stereoscopic conjugate pair of images. An example method comprises the step of encoding the at least one watermark by shifting selected pixels of said pair of images in one or more directions. The one or more directions include a horizontal direction. In the disclosed embodiments, ancillary information is not required to support decoding of encoded watermarks in addition to the transmitted left and right images.

Abstract: A sensor for checking value documents, an apparatus with the sensor, and a method for operating the sensor. Neither the software that the sensor executes for checking the value documents nor the adaptation data that the sensor employs for checking the value documents are stored permanently in the sensor itself. The sensor is set up for the software as well as the adaptation data to be loaded into the sensor from outside the sensor. The sensor can be employed for checking value documents only when a data carrier is connected to the sensor, and the data carrier has license data stored thereon through which a license for the employment of the software and/or of the adaptation data is supplied to the sensor.

Abstract: An object detection apparatus includes: an image processing circuit configured to: (i) derive optical flows based on feature points of captured images periodically captured by a camera that captures images of the surroundings of the vehicle; (ii) group the feature points relating to the optical flows based on positions of the feature points to derive one or more groups; and (iii) detect the object based on a size of each of the one or more groups; and a microcomputer that communicates with the image processing circuit and is configured to: (a) obtain a speed of the vehicle; and (b) set a parameter that affects the size of the one or more groups such that as the speed of the vehicle is slower, the size of the one or more groups is greater.

Abstract: An apparatus and method for generating a contour automatically based on one or more user-generated contours for a three dimensional (3D) structure. In one aspect, a method of integrating image contour generation and editing with contour interpolation and contour extrapolation is provided. Manual contour drawing and editing may be performed by a user while interpolation and/or extrapolation of contours is automatically calculated in the background. Results of the interpolation and/or extrapolation may be displayed immediately, allowing the user to easily make refinements to any contours, as needed. In one aspect, interpolated and extrapolated contours may be automatically adapted (e.g., recalculated) according to user-modifications of contours.

Abstract: Disclosed are object detection method, display methods and apparatuses. The method includes obtaining slice data of inspected luggage in the CT system; generating 3D volume data of objects in the luggage from the slice data; for each object, determining a semantic description including at least a quantifier description of the object based on the 3D volume data; and upon reception of a user selection of an object, presenting the semantic description of the selected object while displaying a 3D image of the object. The above solutions can create a 3D model for objects in the inspected luggage in a relatively accurate manner, and thus provide better basis for subsequent shape feature extraction and security inspection, and reduce omission factor.

Abstract: An improved emitter tracking system. In aspects of the present teachings, the presence of a desired emitter may be established by a relatively low-power emitter detection module, before images of the emitter and/or its surroundings are captured with a relatively high-power imaging module. Capturing images of the emitter may be synchronized with flashes of the emitter, to increase the signal-to-noise ratio of the captured images.

Abstract: When detecting an object of interest, such as a bicyclist passing a truck, two downward looking cameras both capture images of the cyclist and detect the cyclist as a deviation from the flat ground plane. The ground plane is reconstructed using a homography (projection) matrix of each camera and compared. Where the camera images do not agree, the ground is not flat. The cyclist is located as the intersection of the rays extending to either end of the area of disagreement between the images.

Abstract: A driver assistance system (10) for a motor vehicle comprises an imaging means (11) for acquiring images from a surrounding of the motor vehicle, and a processing means (14) adapted to perform image processing of images (30) recorded by the imaging means (11) and to detect an oncoming vehicle (33) by identifying its head lights (34) as a result of the image processing. The processing means (14) is adapted to detect, in the recorded images (30), a light aura (37) originating from at least one light source (34) hidden to the imaging means (11), and to use the light aura detection in the oncoming vehicle detection.

Abstract: Methods and systems for angiographic imaging with optical coherence tomography (OCT) are described using ratio-based and angiographic deviation based calculations. In using these calculations to determine motion, arbitrary interframe permutations may be used, post-calculated, non-linear results for projection visualization may be averaged, poor matches may be eliminated on an A-line by A-line basis, windowing functions may be used to improve results, partial spectrums may be used when capturing data, and a minimum intensity threshold may be used for determining which pixels to use.

Abstract: The present invention relates to a medical imaging system (10) for planning an implantation of a cardiac implant (42), comprising: a receiving unit (12) for receiving a plurality of three-dimensional (3D) cardiac images (14, 14?) showing different conditions of a heart (32) during a cardiac cycle; a segmentation unit (22) for segmenting within the plurality of 3D cardiac images (14, 14?) a target implant region (38) and a locally adjacent region (40) that could interfere with the cardiac implant (42); a simulation unit (24) for simulating the implantation of the cardiac implant (42) within the target implant region (40) in at least two of the plurality of 3D cardiac images (14, 14?); a collision evaluation unit (26) for evaluating an overlap (46) of the simulated cardiac implant (42) with the segmented locally adjacent region (40) in at least two of the plurality of 3D cardiac images (14, 14?); and a feedback unit (28) for providing feedback information to a user concerning the evaluated overlap (46).

Abstract: A method of evaluating a portal dose image includes obtaining a template from a database, the template prescribing one or more evaluation criteria, receiving a first portal dose image, and using a processor to evaluate the first portal dose image based at least in part on the one or more evaluation criteria from the template. In some embodiments, a second image is automatically evaluated after the first image is evaluated. A system for evaluating a portal dose image includes a processor that is communicatively coupled to a database, the database having a template that prescribes one or more evaluation criteria, wherein the processor is configured to obtain the template from the database, receive a first portal dose image, and evaluate the first portal dose image based at least in part on the one or more evaluation criteria from the template.

Abstract: A method includes receiving image data at a first tracking system. The image data may represent a region in an image of a sequence of images. The method includes generating a first tracking fingerprint based on the image data. The method includes comparing the first tracking fingerprint and a second tracking fingerprint. The method further includes providing an output from the first tracking system to a second tracking system based on a result of the comparison of the first tracking fingerprint and the second tracking fingerprint.

Abstract: The present invention provides a system and method for generating a CT slice image. The system comprises an MIP image generation module, a region of interest determination module, an angle setting module, a curve determination module, a match module and a slice generation module.

Abstract: A system for dynamically tracking and indicating a path of an object comprises an object position system for generating three-dimensional object position data comprising an object trajectory, a software element for receiving the three-dimensional object position data, the software element also for determining whether the three-dimensional object position data indicates that an object has exceeded a boundary, and a graphics system for displaying the object trajectory.

Abstract: A method includes analyzing a spectral projection image of a portion of a subject, generating a value quantifying an amount of a target specific contrast material in a region of interest of the spectral projection image, and generating a signal indicative of a presence of the target in response to the value satisfying a predetermined threshold level.

Abstract: An evaluator can determine whether there is a material change in the observed parameter of a crop or field with respect to average measurements of the observed parameter. A location-determining receiver is adapted to determine a location of a vehicle corresponding to the material change in the observed parameter. An imaging device is adapted to collect the image data for a time interval associated with the material change. A data processor is arranged for associating the image data with the corresponding location data and storing the image data and corresponding location data in a data storage device.

Abstract: Image processing techniques for self-captured images are disclosed. An image can be captured during activation of an illumination element of a mobile device. Presence of a representation of the mobile device can be determined in the captured image based at least in part upon locating a reflection of an illumination produced by the illumination element. Dimensions of the representation of the mobile device can be determined and compared to actual dimensions of the mobile device to provide a scaling factor. The scaling factor can be used to determine the size of various objects, including articles of clothing, in the image.

Abstract: A method, system, and computer readable medium which automatically determine the side, field and a level of image quality of fundus images of the retina of a human eye is disclosed. The disclosure combines image processing, computer vision and pattern recognition techniques in a unique way to provide a robust process to identify and grade the quality of fundus images with application to improve efficiency and reduce errors in clinical or diagnostic retinal imaging workflows.

Abstract: To provide an image processing device, a region extraction method, and an image processing method capable of extracting a target region based on minute variations in a concentration value that exist locally and clearly displaying the extracted target region, the image processing device extracts a blood vessel region A from an image to extract a region where a CT value is smaller than an average concentration value of the blood vessel region A as a soft plaque region B. For unextracted soft plaque, a pixel pair is set in a difference region between the region A and the region B, and for each pixel Pj between the pixel pairs, whether or not the pixel value is even smaller than a value slightly smaller than the CT value of the pixel pair is determined. Hence, a portion where a pixel value slightly varies locally is extracted as soft plaque.

Abstract: The invention relates to a method for detecting hydrocarbon spill in an aqueous medium from a plurality of images of the surface of the aqueous medium obtained by an infrared camera comprising analyzing an image of the plurality of images; checking whether at least one region that could be identified as spill is displayed in the image, in case of positive result, assessing whether the point representing a multidimensional vector of characteristics associated with the region is within a reference zone defined in a multidimensional space, this reference zone being representative of multidimensional vectors of characteristics of regions corresponding to real spills; if it is determined that the point representing the multidimensional vector of characteristics is within the multidimensional reference zone, generating a warning signal of spill.