Abstract: A calibration method of a stereo camera includes transmitting a group of system parameters of the stereo camera to a server; downloading calibration pattern corresponding to the group of system parameters from the server; calculating a plurality of camera calibration parameters corresponding to the stereo camera according to the calibration pattern; and executing an image rectification operation on a left eye image capture unit and a right eye image capture unit of the stereo camera according to the plurality of camera calibration parameters, respectively.

Abstract: An image processor includes a corrector that corrects deviation of a coordinate in an image photographed by a photographing unit based on a correction parameter stored in a memory; and an updater that generates the correction parameter based on the image photographed by the photographing unit, and updates the correction parameter stored in the memory, the updater updating the correction parameter according to a process condition based on the image corrected by the corrector.

Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the capturing of an image of a test pattern with the array camera such that each imaging component in the array camera captures an image of the test pattern. The image of the test pattern captured by a reference imaging component is then used to derive calibration information for the reference component. A corrected image of the test pattern for the reference component is then generated from the calibration information and the image of the test pattern captured by the reference imaging component. The corrected image is then used with the images captured by each of the associate imaging components associated with the reference component to generate calibration information for the associate imaging components.

Abstract: Methods and systems for collecting camera calibration data using at least one fixed calibration target are described. Calibration parameters of a camera that is attached to a vehicle may be accessed. A set of calibration instructions for the camera may be determined based at least in part on the calibration parameters. The set of calibration instructions may include navigational instructions for the vehicle to follow to present the camera to the at least one fixed calibration target. Calibration data collected by the camera viewing the at least one fixed calibration target may be received. The camera may be calibrated based at least in part on the calibration data.

Abstract: A display device that may compensate for characteristic deviations among pixels and impact picture quality is provided. The display device includes a plurality of pixels, a plurality of sensing lines connected to the pixels, a sensing circuit configured to extract characteristic information of the pixels through the sensing lines. The sensing circuit includes a plurality of analog-to-digital converters (ADC) to convert the characteristic information into digital sensing data and to output the digital sensing data. A compensating circuit is configured to compare output values of the plurality of ADCs, to set a correction value, and to convert first data into second data based on the sensing data and the correction value. A data driver is configured to generate data signals corresponding to the second data and to output the data signals to the pixels.

Abstract: A method of operating data-processing system for calibration of a vehicle surround view based on images captured of one or more 2D calibration patterns located at arbitrary positions in an overlapping field of view between two or more cameras fixed to the vehicle. The calibration patterns are arbitrary orientated in respect to the vehicle or other calibration patterns. Each calibration pattern is laying in the plane Z=0 on which the vehicle having surround view system is parked. The images of any calibration pattern j positioned in an overlapping field of view between two or more cameras are taken simultaneously establishing connected topological structure of the form: . . . —camera i—pattern j—camera i?—pattern j^?—camera i?— . . . The data-processing results with the corrected extrinsic camera i parameters Ri,Ci for the vehicle coordinate system.

Abstract: A mobile terminal including a terminal body; a camera; a sensor configured to sense a movement of the terminal body; a display formed on the terminal body to have a first display region configured to display screen information and a second display region distinguished from the first display region; and a controller configured to in response to a sensed predetermined movement of the terminal body from a first position to a second position without a touching of the second display region, change a direction of the displayed screen information corresponding to the sensed predetermined movement of the terminal body, and in response to the sensed predetermined movement of the terminal body from the first position to the second position with the touching of the second display region, activate the camera and display a preview image in the first display region.

Abstract: Calibration methods use a calibration target for obtaining the intrinsic and extrinsic camera parameters of one or more cameras are. The methods can include acquiring, with each camera, a sequence of target images representing the calibration target in different target poses and at different acquisition times. The methods can include identifying reference images from the target images, and defining volume bins, angle bins and multi-camera bins into which the reference images are stored. The reference images can be used to determine the intrinsic and extrinsic parameters of the one or more cameras. In some implementations, the calibration methods can enable a user to monitor the progress of the calibration process, for example by providing an interactive calibration target including an input/output user interface to guide the user in real-time during the acquisition of the target images and/or sensors to provide positional information about the target poses.

Abstract: An image processing device includes an image input section inputting images taken by a vehicle camera, a calibration target specifying section specifying a calibration target included both in a first image and in a second image, a vehicle information input section inputting information indicating travel distance and orientation change of the vehicle, a calculation section, and a storing control section. The calculation section converts the first and the second images to the first and second bird's-eye view images, respectively, arranges the first and the second birds-eye view images on common coordinate system with consideration of corresponding image taking positions and image taking orientations, and calculates at least one orientation parameter of the camera which minimizes position difference and rotation angle difference between the two calibration targets included in the first and second birds-eye view images. The storing control section stores the orientation parameter in storage.

Abstract: The present embodiments relate to multi-resolution lightfield representations and lightfield renderings. By way of introduction, the present embodiments include apparatuses and methods for generating multi-resolution lightfield representations used to generate lightfield renderings that provide end users with zoom functionality without distorting the rendering. Image data sets of a volume are captured at different resolutions for each camera position, and the image data sets are stored as multi-resolution image pyramids. The multi-resolution image pyramids represent the lightfield at different resolutions, and image data sets at a particular resolution are selected and used for generating a volume rendering at a zoom level chosen for the lightfield rendering.

Abstract: A focus detection apparatus comprises: a focus detection unit configured to detect a focus state; an obtaining unit configured to obtain a correction value to be used in correction of the focus state detected by the focus detection unit; and a storage unit configured to store a correction value. In a case where a difference between the correction value stored in the storage unit and the correction value obtained by the obtaining unit is smaller than a threshold value, the correction value stored in the storage unit is not updated.

Abstract: Aspects of the present disclosure may include a method of classifying an object that includes, receiving a set of images of an indication of an object, extracting data from the images, performing a comparison of the extracted image data to a set of comparison data associated with a set of comparative objects, determining a classification of the object based on the comparison and outputting data representative of the classification. The method may classify an object by an individual identity or by one or more group characteristics.

Abstract: Methods and systems for auto-tuning a handheld scanning device that can account for changes in the orientation between the handheld scanning device and a presented symbol can include capturing a first image containing a presented symbol, recording an orientation parameter and parameters associated with capturing the first image containing the presented symbol, capturing a subsequent image containing the presented symbol, recording an orientation parameter of the presented symbol contained in the subsequent image, comparing the orientation parameter of the symbol contained in the subsequent images to the orientation parameter of the presented symbol contained in the subsequent image, determining if the orientation parameter of the presented symbol contained in the subsequent images is substantially similar to the orientation parameter of the symbol contained in the first image, and recording parameters associated with capturing the subsequent images containing the presented symbol.

Abstract: Color calibration of color image rendering devices, such as large color displays, which operate by either projection or emission of images, utilize internal color measurement instrument or external color measurement modules locatable on a wall or speaker. A dual use camera is provided for a portable or laptop computer, or a cellular phone, handset, personal digital assistant or other handheld device with a digital camera, in which one of the camera or a display is movable with respect to the other to enable the camera in a first mode to capture images of the display for enabling calibration of the display, and in a second mode for capturing image other than of the display. The displays may represent rendering devices for enabling virtual proofing in a network, or may be part of stand-alone systems and apparatuses for color calibration.

Abstract: This disclosure provides systems, methods, and apparatus related to ion beam therapy. In one aspect, a system includes a position sensitive detector and a collimator. The position sensitive detector configured to detect gamma rays generated by an ion beam interacting with a target. The collimator is positioned between the target and the position sensitive detector. The collimator includes a plurality of knife-edge slits, with a first knife-edge slit intersecting with a second knife-edge slit.

Abstract: An image signal processor may include a sensor interface that includes a pixel defect preprocessing (PDP) component that performs an initial adjustment of pixel values for patterned defect pixels in raw pixel data captured by an image sensor. To adjust a patterned defect pixel, the PDP component may apply an interpolation technique to values in a gain lookup table according to the pixel's location in the image frame to determine the gain value for the pixel, and then apply the gain value to the pixel. The PDP component may provide the raw pixel data with the adjusted patterned defect pixels to two or more other modules for additional processing. The other modules may include an image processing pipeline that may detect other defective pixels in the raw pixel data and correct the patterned defect pixels and the other defective pixels, for example using a weighted combination of neighboring pixels.

Abstract: Systems and methods for calibrating an array camera are disclosed. Systems and methods for calibrating an array camera in accordance with embodiments of this invention include the detecting of defects in the imaging components of the array camera and determining whether the detected defects may be tolerated by image processing algorithms. The calibration process also determines translation information between imaging components in the array camera for use in merging the image data from the various imaging components during image processing. Furthermore, the calibration process may include a process to improve photometric uniformity in the imaging components.

Abstract: A measuring system for measuring video processing quality of a device under test includes a measuring device comprising transmission means set up for transmitting a video to the device under test. The device under test is set up for receiving the video and displaying it using a display included by the device under test. The video includes at least a first barcode to be displayed for a first duration. The measuring system includes a barcode reader set up for reading the first barcode from the display of the device under test. The measuring system is set up for determining the video processing quality of the device under test based upon measuring results of the barcode reader.

Abstract: In one aspect, the present disclosure relates to a method for configuring one or more imaging sensors of an imaging device to capture digital images for digital pulse recognition demodulation. In some embodiments, the method includes initializing one or more imaging sensors of the imaging device, determining a subset of the one or more imaging sensors to configure, setting a configuration for each of the one or more imaging sensors of the subset by defining a region of interest as a metering area for each of the one or more imaging sensors of the subset and automatically adjusting a setting for each of the one or more imaging sensors of the subset, and adjusting input parameters of a demodulation function based on a device profile of the imaging device. In some embodiments, the adjusted setting is locked to prevent further adjustment of the adjusted setting.

Abstract: An image reading device includes an image sensor, a color reference portion, a test control portion, a standard distribution information storage portion, a type determination portion, and an abnormality notification portion. The image sensor is capable of outputting detection data of an amount of received light from each of a plurality of partial scanning areas, each at an individual channel. The test control portion is configured to cause the image sensor to operate under a plurality of test operation conditions different in resolution, when a document is not present. If a distribution state of the detection data at each channel acquired under each test operation condition does not match any of standard distribution information, the abnormality notification portion notifies an abnormality of another device related to the image sensor. The standard distribution information represents a standard distribution state of data at each channel under each test operation condition.

Abstract: Provided is an image processing device including: an area extraction unit extracting areas corresponding to size of a predetermined target object from an image; a mosaicking image creation unit connecting extracted areas to create a mosaicking image; and an object detection unit detecting an object from the mosaicking image.

Abstract: A calibration method of a stereo camera includes optionally setting a plurality of camera calibration parameters and a plurality of image rectification parameters of the stereo camera; executing an image capture step on at least one left eye pattern and at least one right eye pattern corresponding to each two-dimensional image of at least one two-dimensional image; generating a plurality of new camera calibration parameters according to a plurality of first images corresponding to all left eye patterns corresponding to the at least one two-dimensional image and a plurality of second images corresponding to all right eye patterns corresponding to the at least one two-dimensional image; and generating a plurality of new image rectification parameters of the stereo camera according to the plurality of new camera calibration parameters.

Abstract: This invention provides a system for measuring displacement of an object surface having a displacement sensor that projects a line on the object surface and receives light from the projected line at an imager in a manner defines a plurality of displacement values in a height direction. A vision system processor operates on rows of imager pixels to determine a laser line center in columns of imager pixels in each of a plurality of regions of interest. Each region of interest defines a plurality of rows that correspond with expected locations of the projected line on the object surface. A GUI can be used to establish the regions. In further embodiments, the system generates grayscale images with the imager. These grayscale images can be compared to a generated height image to compensate for contrast-induced false height readings. Imager pixels can be compared to a reference voltage to locate the line.

Abstract: Video capture devices may be held in a frame having at least two openings and a plurality of slots on a first side and a plurality of tabs on a second side opposite the first side, the slots and tabs positioned such that when the frame is folded by folding the first side toward the second side, the tabs may be folded toward the first side, inserted into the slots and then folded parallel to the first side to secure the frame in a closed position. An application on a first device in the frame may establish a connection with a second device in the frame, synchronize a clock in the first device with a clock in the second device, initiating simultaneous video capture, record data indicating changes in orientation of the devices, and transmit the captured videos and the data indicating changes in orientation to a video processing tool.

Abstract: An incubated state evaluating device includes an image reading unit, a feature value calculating unit, a frequency distribution calculating unit, and an evaluation information generating unit. The image reading unit reads a plurality of images in which a plurality of cells incubated in an incubation container are image-captured in time series. The feature value calculating unit obtains each of feature values representing morphological features of cells from the images for each of the cells included in the images. The frequency distribution calculating unit obtains each of frequency distributions of the feature values corresponding to the respective images. The evaluation information generating unit generates evaluation information evaluating an incubated state of cells in the incubation container based on a variation of the frequency distributions between images.

Abstract: A print scheduling and processing method, apparatus and system are disclosed. Embodiments of the invention adopt such a method that at least one print processing apparatus satisfying a print requirement of a user is determined; upon reception of a print request sent from an idle print processing apparatus, the idle print processing apparatus sending the print request is notified of a print task of the user if it is determined that the idle print processing apparatus is included among the at least one print processing apparatus satisfying the print requirement of the user.

Abstract: Methods, systems, computer-readable media, and apparatuses for calibrating an event-based camera are presented.

Abstract: A color filter array includes a plurality of tiled minimal repeating units, each minimal repeating unit comprising an M×N set of individual filters. Each minimal repeating unit includes a plurality of imaging filters including individual filters having at least first, second, and third photoresponses, and at least one reference filter having a reference photoresponse, wherein the reference filter is positioned among the imaging filters and wherein the reference photoresponse transmits substantially the crosstalk spectrum that is not filtered from light incident on the color filter array by the plurality of imaging filters. Other embodiments are disclosed and claimed.

Abstract: The image capturing apparatus includes an optical low-pass filter configured to separate one incident ray into multiple rays to form multiple point images, and an image sensor configured to photoelectrically convert the multiple point images. The optical low-pass filter satisfies a condition of 0.4<2×?/P<0.9. P represents a pixel pitch of the image sensor, and ? represents a standard deviation of a distribution of the multiple point images.

Abstract: The present disclosure is directed to a planning and navigation system. The planning system includes a memory configured to store a plurality of images and a controller configured to render the plurality of images in three dimensions, automatically segment the plurality of images to demarcate a target area, and automatically determine a treatment plan based on the target area. The navigation system includes an ultrasound device having a fiducial pattern that obtains an ultrasound image, a surgical device having a image capture device that captures an image of the fiducial pattern, and a controller that receives the ultrasound image and the fiducial image. The controller determines a position of the surgical device based on the fiducial image. The planning and navigation system also includes a controller that receives data from the planning system and the navigation system and a display configured to display the received information.

Abstract: An imaging apparatus includes an imaging unit having a predetermined pixel array, and a generation unit configured to generate a test video signal for evaluating consistency between a video signal generated by performing predetermined processing on a video signal output from the imaging unit, and the video signal output from the imaging unit. In the test video signal, a signal value of each pixel is set so as to exhaustively cover signal values within a predetermined range in a direction in a video image of the test video signal. The test video signal has a repetition pattern in the direction in the video image of the test video signal. A signal deviating from regularity of the repetition pattern is inserted at a predetermined position in the repetition pattern. The spatially or temporally adjacent repetition patterns have different phases from each other.

Abstract: The present disclosure is directed to an ablation planning and navigation system. The planning system includes a memory configured to store a plurality of images and a controller configured to render the plurality of images in three dimensions, automatically segment the plurality of images to demarcate a target area, and automatically determine a treatment plan based on the target area. The navigation system includes an ultrasound device having a fiducial pattern that obtains an ultrasound image, an ablation needle having a image capture device that captures an image of the fiducial pattern, and a controller that receives the ultrasound image and the fiducial image. The controller determines a position of the ablation needle based on the fiducial image. The planning and navigation system also includes a controller that receives data from the planning system and the navigation system and a display configured to display the received information.

Abstract: The present disclosure is directed to a surgical navigation system. The navigation system includes an ultrasound device configured to obtain an ultrasound image in a scan plane The ultrasound device has a fiducial pattern disposed thereon. A surgical device having an image capture device configured to capture a fiducial image of the fiducial pattern is also provided. The system also includes a controller configured to receive the ultrasound image and the fiducial image, wherein the controller determines a position of the surgical device in relation to the scan plane based on the fiducial image. A display is configured to display the ultrasound image and a virtual image of the surgical device based on the position of the surgical device in relation to the scan plane.

Abstract: An apparatus for image matching between multiview cameras includes a pattern model storing unit to store a pattern model, a matching processing unit to match the stored pattern model with a point cloud obtained by at least one depth camera, and a parameter obtaining unit to obtain a parameter for each of the at least one depth camera, based on a result of the matching.

Abstract: Devices and techniques are described for automatically calibrating a device such as a camera, projector, or both using a video stream. The device undergoing calibration is coupled to a computing device and configured to acquire video comprising a plurality of images. These images, at least some of the time, include targets having known characteristics present in an environment. From these acquired images calibration data comprising parameters such as intrinsic parameters, extrinsic parameters, or both, may be determined. The calibration data may be embedded or otherwise associated with the video stream as calibration matrix metadata.

Abstract: A system, a computer readable storage medium storing at least one program, and a computer-implemented method for updating a performance of a presentation of a virtual game environment. A presentation of a virtual game environment is generated based on a visual attribute. The visual attribute may identify a visual quality of the presentation of the virtual game environment. A visual performance metric associated with the presentation of the virtual game environment is then monitored. The visual attribute then updated based on the visual performance metric. After the visual attribute is updated, an updated presentation of the virtual game environment is generated based on the updated visual attribute.

Abstract: An image conversion method is provided. An image of a calibration reference pattern is captured. A plurality of first and a plurality of second characteristic patterns of the calibration reference pattern are identified. Coordinates of the first and second characteristic patterns in a first view angle coordinate system are obtained, and coordinates of the first and second characteristic patterns in a second view angle coordinate system are obtained, to obtain a coordinate conversion relationship between the first and second view angle coordinate systems. An input image is converted to an output image according to the coordinate conversion relationship.

Abstract: An image capture apparatus includes an image sensor in which a plurality of types of pixels including a specific pixel is arranged, and a detection unit configured to detect a defective pixel based on a pixel value of each pixel in the image sensor, wherein the detection unit is configured to exclude the specific pixel from a target of the defective pixel based on information indicating a position of the specific pixel in the image sensor.

Abstract: An apparatus is disclosed which may serve as a target for calibrating a camera. The apparatus includes a hollow body having an interior surface, an exterior surface and at least one window formed in the hollow body through which the interior surface is visible. A plurality of distinguishable fiducial markers are arranged in a predetermined pattern along the interior and exterior surface of the hollow body. The fiducial markers can be distinguishable such that, for any given image of the target captured by a camera, there is only one position, rotation, distortion value, and focal length for the camera of interest.

Abstract: An interactive camera calibration tool is presented that provides live feedback on the state of the calibration and produces tightly-distributed calibration parameters even when used by novices. Target positions are suggested by the calibration tool. Once the target has been aligned with the target positions, image data of the target is captured and used to compute calibration parameters. This process is repeated until the computed parameters meet the accuracy requirements specified by the user. A novel calibration quality metric is also leveraged to automatically determine whether a calibration is sufficiently accurate.

Abstract: Described are methods and apparatus for adjusting images of a stereoscopic image pair. The methods and apparatus may capture a first and second image with first and second imaging sensors. The two imaging sensors have intrinsic and extrinsic parameters. A normalized focal distance of a reference imaging sensor may also be determined based on intrinsic and extrinsic parameters. A calibration matrix is then adjusted based on the normalized focal distance. The calibration matrix may be applied to an image captured by an image sensor.

Abstract: This invention provides a system and method for automatic (non-manual) calibration of one or more cameras employs a tessellating calibration plate having a checkerboard tile pattern and a plurality of 2D codes embedded within the checkerboard pattern. Each 2D code encodes the (X,Y) coordinates that identify tile calibration feature locations in the pattern, and the remaining, surrounding tiles allow measurement of the corner positions as calibration features. One or more vision system camera(s) can be calibrated to a single coordinate system automatically. During calibration, an image of at least a portion of a calibration plate is acquired, the encoded data is decoded for at least one 2D code within the field of view of each camera and then the position of the field of view is determined on the calibration plate for each camera using the 2D code data and the checkerboard tile pattern.

Abstract: The invention is related to a method for registering at least one part of a first image and of a second image, including the steps of providing a first image of the real environment and a coordinate system associated to the first image, a second image of the real environment, and measurements of orientation and/or distance of a capturing device with respect to the real environment while capturing the second image. A collineation warping function is then determined from the measurements associated to at least one part of the second image.

Abstract: There is provided an image processing device including an image input unit that performs image division on an input image, an evaluation value generation unit that generates an evaluation value based on an image signal of the input image, and a plurality of signal processing units that perform signal processing on the image signal based on the evaluation value generated by the evaluation value generation unit, wherein the plurality of signal processing units perform the signal processing using image signals of divided images divided by the image input unit.

Abstract: The present disclosure illustrates a lens distortion correction method to solve influence for distortion correction caused by an alignment error between a lens center and a center of image sensor unit during assembling. The present disclosure is characterized in that the spatial geometric calibration is incorporated with the lens distortion correction and different image centers are selected repeatedly when transformation relationship of image coordinates is used to perform the lens distortion correction, so as to correct the image center of the image to be corrected and enhance the accuracy of lens distortion correction.

Abstract: A method for calibrating a camera network includes generating a projection matrix by each of cameras in respect of a calibration pattern that is disposed at a plurality of different positions in a photography zone. A portion of the projection matrix is produced as a sub-projection matrix. Sub-projection matrixes are arranged widthwise and lengthwise to generate one sub-measurement matrix. A singular value decomposition (SVD) is performed on the sub-measurement matrix to change the sub-measurement matrix into a matrix having a rank of 3 and a SVD is performed on the changed sub-measurement matrix. A rotation value of the calibration pattern, and an internal parameter and a rotation value of each camera are extracted to thereby calibrate the camera network.

Abstract: Systems, methods, and computer-readable media acquire an image captured with a mobile device. Motion sensor data of the mobile device at or near a time when the image was captured is acquired. An angle of rotation is computed based on the motion sensor data, and the image is transformed based on the angle of rotation. In another aspect, a user interface enables user control over image transformation. The user interface enables user control over rotating an image on a display at two or more granularities. A point of rotation may be user-defined. Rotated images may be scaled to fit within a viewing frame for displaying the transformed image.

Abstract: An endoscope apparatus includes an image acquisition section that acquires images in time series, a coefficient calculation section that calculates a correction coefficient for correcting blurring in a depth direction that is a direction along an optical axis of an imaging section, and a depth-direction blurring correction section that performs a depth-direction blurring correction process that corrects blurring in the depth direction on the images acquired in time series based on the correction coefficient.

Abstract: The purpose of the invention is to increase accuracy in detecting a person on the basis of the size of an object detection region in an omni-directional image. A height-and-width switching section for switching between the height and the width of the object detection region on the basis of the position of the object detection region in the omni-directional image is provided. It is determined on the basis of the height and the width of the object detection region for which the height and the width are switched by the height-and-width switching section whether the object detection region is a person detection region. As a result, the person detection region and a shadow detection region can be correctly separated in the omni-directional image.

Abstract: Luminous pixel array. Each pixel in the array is formed by a luminous flying vehicle. A plurality of luminous flying vehicles are controlled to move in three-dimensional space so as to crate two-dimensional and three-dimensional shapes that can move in space. In one embodiment images are formed.