Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: A method for automatic keystone correction in a projection system is provided that includes rectifying a first image to be projected using current keystone correction parameters to generate a first rectified image, projecting, by a projector in the projection system, the first rectified image on a projection surface, determining whether or not current keystone correction parameters are providing sufficient keystone correction after the first rectified image is projected, rectifying a second image to be projected using the current keystone correction parameters to generate a second rectified image if the current keystone correction parameters are providing sufficient keystone correction, computing new keystone correction parameters if the current keystone correction parameters are not providing sufficient keystone correction and rectifying the second image to be projected using the new keystone correction parameters to generate the second rectified image, and projecting, by the projector, the second rectified

Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: This disclosure relates to methods and tools for calibrating a camera-based three-dimensional optical metrology system such as that used for non-contact measurement of strain in a materials test system. A tool is provided which holds a calibration plate within a test space of a load frame of a materials testing device. The tool includes a spindle which rotates around a rotational axis to a series of detent rotational positions. The spindle engages the calibration plate by a bearing configuration which allows the tilt angle of the calibration plate to be varied. The rotation of the spindle and the variation of the tilt angle provides for two degrees of freedom of movement within the test space. The resulting sequence of calibration plate positions is systematic and repeatable.

Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: Calibration of displays are disclosed herein. An example method includes obtaining an image of a display including a position-determining pattern and pixels, the image including pixel location data and position-determining pattern location data; comparing the pixel location data and the position-determining pattern location data; and based on the comparison, determining calibration data that accounts for misalignment between the position-determining pattern and the pixels.

Abstract: In various embodiments, a subjective modeling engine mitigates inaccuracies in subjective content assessments. The subjective modeling engine generates a model that includes the subjective content assessments in addition to parameters for subjective scores and subjective factors. The subjective modeling engine initializes the parameters and then performs optimization operations that increase the likelihood that the optimized subjective scores compensate for the optimized subjective factors. Advantageously, because the subjective modeling engine jointly optimizes the subjective scores and the subjective factors, the optimized subjective scores provide unbiased and consistent digital content assessments.

Abstract: Aspects of the present invention relate to methods and systems for the see-through computer display systems with adjustable-zoom cameras positioned such that their respective capture fields-of-view at least partially overlap at a target distance.

Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: A projection display includes an image display device that displays an image, a projection unit that projects the image displayed by the image display device to a projection surface, a light irradiator that irradiates the projection surface with linear light at an incident angle shallower than an incident angle of projection light, in which the linear light extends along a first direction within the projection surface, an imaging unit that has an optical axis different from an optical axis of the light irradiator, and performs capturing of the projection surface, and a signal processor that performs signal processing on an imaging signal outputted from the imaging unit. The imaging unit performs capturing of the linear light with which the projection surface is irradiated, and the signal processor corrects, on a basis of a captured image of the linear light, a distortion of the projected image.

Abstract: An image processing device includes a color reproduction characteristic acquiring unit that acquires a color reproduction characteristic of a display device, a color reproduction characteristic correction unit that corrects the color reproduction characteristic, a feature amount extraction unit that extracts a feature amount which is an object of the correction of the color reproduction characteristic acquired by the color reproduction characteristic acquiring unit, and an evaluation image selecting unit that selects, based on the feature amount, an evaluation image which is a source for generating a confirmation image including (i) an image when the color reproduction characteristic acquired by the color reproduction characteristic acquiring unit and before the correction is used and (ii) an image when the color reproduction characteristic after the correction by the color reproduction characteristic correction unit is used.

Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: A user portable device includes a device chassis comprising at least one opening at a surface of the device chassis and a sensor assembly aligned with the at least one opening. The sensor assembly includes a mounting structure and a plurality of sensors mounted to the mounting structure. The sensors include at least two sensors utilized by the user portable device based on a specified geometric configuration between the at least two sensors. The user portable device further includes a mounting fastener that mounts the sensor assembly to the device chassis so as to isolate the sensor assembly from deformation of the surface of the device chassis along one or more axes during user handling, and thus aid in preventing alteration of a baseline geometric configuration of one or more sensors of the sensor assembly due to the chassis deformation.

Abstract: A temporal alignment system and method for example for detecting temporal misalignment in video frames when the frames are divided for transport using a signal divider for dividing a single signal S into portions S1 . . . SN and using average picture level in determining whether data sets within a particular frame are misaligned.

Abstract: An index detecting section detects an index in a physical space, from a captured image obtained by an imaging apparatus. An erroneous-detection prevention processing section performs erroneous-detection prevention processing, based on information relating to image coordinates of a detected index. An image output section outputs, to a display device, an image having been subjected to the erroneous-detection prevention processing. This prevents an image displayed on the display device from being mistaken for a real index when the display device is in the field of view of the imaging apparatus.

Abstract: Systems and methods are provided for trimming content for projection within the bounds of a projection target. The systems and methods trim the content for projection based on one or more characteristics of the projection target, including a shape, outline, and distance to the projection target. Moreover, the systems and methods designate void areas where no content will be projected based on the one or more characteristics, and the void areas will be generated or otherwise projected along with the content so that the content is projected onto the projection target and the void areas are projected outside of the projection target such that the projected content does not significantly spill onto surfaces or objects outside of the projection target.

Abstract: A system for calibrating multi-camera array images, comprising an array of at least four acquisition devices, configured to acquire images; at least one reference acquisition device configured to acquire at least one reference image at least partially overlapping at least four of the images; and a processor configured to extract tie points between the at least four of the images and the at least one reference image and utilize the tie points for calibrating the at least four of the images in respect of the at least one reference image.

Abstract: Image information displayed on an electronic device can be modified based at least in part upon a relative position of a user with respect to a device. Mapping, topological or other types of positional data can be used to render image content from a perspective that is consistent with a viewing angle for the current relative position of the user. As that viewing angle changes, as a result of movement of the user and/or the device, the content can be re-rendered or otherwise updated to display the image content from a perspective that reflects the change in viewing angle. Simulations of effects such as parallax and occlusions can be used with the change in perspective to provide a consistent user experience that provides a sense of three-dimensional content even when that content is rendered on a two-dimensional display. Lighting, shading and/or other effects can be used to enhance the experience.

Abstract: Aspects of the present invention are related to systems and methods for correcting artifacts in a camera-captured image of a document or image of an object exhibiting document-like content. A mobile device may capture an image and send the image to a cloud computing system for processing. According to a first aspect of the present invention, the mobile device may provide real-time feedback cues to assist in the capture of an image. The mobile device may detect a region-of-interest in the captured image, and a user may refine or confirm the detected region-of-interest. The captured image, information identifying the region-of-interest and a metadata tag, referred to as a region-of-interest modification tag, indicating whether, or not, the region-of-interest was refined by a user may be sent to the cloud.

Abstract: A system and method for television alignment includes: automatically detecting that a television is mounted, wherein the television includes a gyroscope. An orientation of the television is sensed, wherein the gyroscope is operable to perform the sensing. A representation of the orientation is displayed on the television. An acceptable alignment is determined for the television. The acceptable alignment for the television is displayed. There is an indication when the orientation matches the acceptable alignment.

Abstract: A method for generating a signal based on a visual image includes photographing a target object with a digital camera to obtain a target image; receiving the target image into a processor that is in communication with the camera; cross-correlating the target image with a structure having a variety of scales across the target image; and based on cross-correlating the target image, generating a signal for output on a device associated with the camera. A visual recognition system is also disclosed.

Abstract: Methods and apparatus actively align a lens to a digital camera sensor. The lens includes a “floating” optical element. One or more test probes are temporarily electrically connected to electrical contacts, such as traces on a flexible printed circuit, of the lens. Motor control signals are injected via the test probes and the electrical contacts, so as to move the floating optical element to a predetermined position and maintain that position during the active alignment process.

Abstract: A method of mutually aligning first and second imaging system fixturing components forms a first alignment structure on the first imaging system fixturing component, a second alignment structure on the second imaging system fixturing component, and engages the first and second alignment structures to align, with optical accuracy, the first and second imaging system fixturing components.

Abstract: A method for calibrating a camera and a display monitor is provided. The method includes identifying a parameter for optimization, assigning to a test color a target color relevant to the parameter, repeatedly performing, two or more times, a set of steps, determining a direction and timing of color divergence for the target color from obtained images, and adjusting the parameter based on the direction and rate of color divergence for the target color. The set of steps includes instructing the display monitor to display the test color on a portion of the display monitor, obtaining an image captured by the camera while the display is executing the instruction, and reassigning, to the test color, a color obtained from a portion of the image in which the portion of the display monitor was captured. The obtained image includes the portion of the display monitor.

Abstract: A method of pick-and-place alignment comprises (a) determining a pick location of a device from a tray of devices; (b) determining place location of the device using an up-looking camera; and (c) determining offset error for the device by comparing the pick location and the place location. The method may further comprise repeating steps (a)-(c) for additional devices on the tray of devices; and generating an offset map for alignment of devices on the tray. The method further uses the offset map to make pick and place corrections during runtime.

Abstract: A display apparatus is disclosed. The display apparatus includes a display unit which displays a calibration screen divided into a plurality of areas when a calibration mode is initiated, an image generating unit which generates a guide image for displaying an arrangement position of a calibrator, and a controlling unit which controls the display unit to display a guide image on areas where calibration is to be performed of the plurality of areas. Accordingly, it becomes possible to improve user convenience and exactness of calibration.

Abstract: A test device is for testing display parameters of an electronic product with a page browsing function. The electronic product stores display times of a number of standard frames which selected from a standard video file. The standard video file includes frames record the play process of a testing file being played by a standard electronic product. The test device controls a video capturing unit to capture an original video file which includes frames to records the playing process of the electronic product. The electronic product searches matching frames of the number of standard frames in the original video file. Thus the parameters of the electronic product can be determined by display times of the matching frames in the video file.

Abstract: A method and system for automated video quality assessment which reduces the adverse effects of sub-field/frame misalignments between the reference and test sequences. More particularly, the invention provides for misalignments down to a sub-field/frame level to be handled by individually matching sub-field/frame elements of a test video field/frame with sub-field/frame elements from a reference video field/frame. The use of a matching element size that is significantly smaller than the video field/frame size enables transient sub-field/frame misalignments to be effectively tracked.

Abstract: A lens assembly alignment apparatus for a camera lens module is provided. The lens assembly alignment apparatus includes a position alignment apparatus that moves a lens assembly in a direction of an optical axis of the lens assembly and on a plane perpendicular to the optical axis. The apparatus also includes a slant alignment apparatus having first and second rotary axes which extend perpendicular to each other and perpendicular to the optical axis of the lens assembly, respectively. The lens assembly is received in a housing, and the slant alignment apparatus aligns an optical axis of an image sensor, which is mounted in the housing, parallel to the optical axis of the lens assembly by rotating the housing about each of the first and second rotary axes.

Abstract: A method of mutually aligning first and second imaging system fixturing components forms a first alignment structure on the first imaging system fixturing component, a second alignment structure on the second imaging system fixturing component, and engages the first and second alignment structures to align, with optical accuracy, the first and second imaging system fixturing components.

Abstract: A panel adjustment method is executed on a host to adjust settings of a panel connected to the host through a serial bus. The method determines whether the panel is supported by the host. When the panel is supported by the host, the settings of the panel is read from a database of the host to accordingly set the panel. It is further determined whether the panel is correctly set or not. When the panel is correctly set, it is further determined whether the panel is of a frame buffer mode or not. When the panel is of a frame buffer mode, it is determined whether a header file generation is required or not. When the header file generation is required, the settings and a panel name are included in an include file. The include file is compiled to thereby generate a binary file which is loaded into the panel.

Abstract: A projector includes: a storing unit that stores setting data indicating a manual trapezoidal distortion correction system selected out of plural kinds of manual trapezoidal distortion correction systems; an operation unit that generates operation information; an imaging unit that picks up an image of a projection target area and generates a pickup image; an automatic trapezoidal distortion correction unit that performs automatic trapezoidal distortion correction; a projecting unit that projects, after the automatic trapezoidal distortion correction is performed, irrespectively of the manual trapezoidal distortion correction system indicated by the setting data, an adjustment instruction image for urging adjustment of a vertex position of a display planned area of the image in the projection target area; and a manual trapezoidal distortion correction unit that performs manual trapezoidal distortion correction on the basis of operation information indicating an adjustment instruction for the vertex position.

Abstract: A method of placing a surveillance camera in a known reference orientation as a result of panning and tilting movements includes coupling the camera to a fixed structure such that the camera may perform the panning movements about a first axis and may perform the tilting movements about a plurality of second axes. Each of the second axes is substantially perpendicular to the first axis. An optical emitter is fixedly attached either to the fixed structure or to the camera. An optical receiver is fixedly attached to the other one of the fixed structure and the camera. The tilting and panning movements are performed with the camera until the emitter and receiver are in a predetermined position relative to each other as determined from a signal that is output by the receiver in response to receiving optical energy from the emitter.

Abstract: A method for correcting a projection from a plurality of digital projectors is provided. The method includes receiving as an input a matrix which maps each pixel to be projected to a captured pixel that includes a row value and a column value and detecting a shift with respect row or column values in the matrix. The method further includes determining attributes of the shift, wherein the attributes include a type for the shift and an overlap length for the shift. A gradient length is determined from the overlap length. A gradient of pixel weightings is generated for each gradient length. The pixel weightings are uniformly sloping and are associated with pixels in the gradient length and neighboring pixels. Intersecting gradients re merged and a list that includes common points and diagonal points is created from the merging process. The method operations may be embodied as code on a computer readable storage medium.

Abstract: Test patterns and associated techniques for testing the fidelity of intensity reproduction are disclosed. One set of embodiments provide test patterns that incorporate anti-aliased features such as anti-aliased edges or lines. In various embodiments, these anti-aliased features expose undesirable, nonlinear transformations of the test patterns by one or more devices in an image output system or chain. Using these test patterns, users may more easily evaluate the end-to-end gamma response of the system, and may more easily calibrate gamma controls accordingly. Additionally, users may more easily identify nonlinear image resampling performed in gamma, rather than linear, space.

Abstract: This invention provides a parameter for use in assessing video quality based on temporal frame freezing for use in an apparatus and method for perceptual video quality measurement. The invention provides a method of generating a freeze frame parameter relating to the perceptual impact of frozen frames in a video signal comprising the steps of: identifying frozen frames; identifying a freeze event comprising a plurality of consecutive frozen frames, the freeze event having a duration in dependence upon the number of frozen frames in said sequence; defining a set of duration ranges; and generating a freeze frame parameter in dependence upon the number of freeze events having a duration falling within each duration range. Methods and apparatus for perceptual video quality measurement using the method are also provided.

Abstract: A system and method for positioning a portion of an object to be measured includes installing a digital camera adjacent to a charge coupled device (CCD) lens of an image measuring machine, setting positioning parameters corresponding to different positions of the digital camera on a Z-axis of a world coordinate system, receiving an image of the object captured by the digital camera, and selecting corresponding positioning parameters according to a position of the digital camera. The method further includes selecting a point of the portion of the object in the image, calculating coordinates of the selected point in a plane of the CCD lens, and controlling the CCD lens to move to the calculated coordinates so as to position the CCD lens on the portion of the object.

Abstract: The invention discloses a circuit testing apparatus for testing a device under test. The circuit testing apparatus includes a filtering circuit, an amplifying circuit, a comparing module, and a result-examining module. The filtering circuit filters an analog output signal generated from the device under test to generate a filtered signal. The amplifying circuit amplifies the filtered signal to generate an amplified signal. The comparing module compares the amplified signal with at least one reference level to generate at least one result signal accordingly. The result-examining module examines the result signal to determine a test result for the device under test.

Abstract: An apparatus for determining information in order to temporally align first and second information signals, each including one or several information values for successive sampling times, the apparatus including a characteristic extractor for extracting a characteristic per sampling time or per subsequence of sampling times from the first information signal within a first search pattern to obtain a first characteristic curve, and for extracting the characteristic per sampling time or per subsequence of sampling times from the second information signal within a second search pattern to obtain a second characteristic curve and a determiner for determining the information for temporal alignment based on similarities between the first and second characteristic curves of the characteristic by means of a first search for a search pattern from one of the first and second characteristic curves of the characteristic within the other of the first and second characteristic curves of the characteristic.

Abstract: A computer program product and method for calibrating and characterizing a color display perform calibrating and characterizing steps. A light source is operated in order to emit light from one or more light emitters on the light source. A color capture device, e.g., a digital camera, is calibrated and characterized based on the emitted light. Then, color images are displayed on the color display and captured on the color capture device. The color display is calibrated and characterized based on the captured color images. Computer program instructions are recorded on the computer readable medium, and are executable by a processor, for performing the calibrating and characterizing steps. A method for generating a controlled light source includes displaying light source selections to a user and receiving a user light source selection. Selected light emitters produce a light output matching the user light source selection.

Abstract: A first Gray code technique and a second raster calibration technique can be combined to create a precise mapping between pixel locations of the camera and pixel locations of the projector(s). In one aspect the technique of using the raster calibration images is eliminated by interpolating the projector coordinate information decoded from the Gray code images. In another aspect camera images are processed to reduce errors caused by noise so that text can be displayed without any noticeable misalignment between projectors. In a third aspect, a scale factor is calculated based on the relative height/width of projector regions in the captured calibration images. Calibration images are recalculated using the scale factor to provide greater correspondence between the mapping of a low resolution camera to the high-resolution projectors.

Abstract: Systems and methods for measuring spatial and angular performance of a visual display are disclosed herein. In one particular embodiment, for example, a method for measuring spatial and angular performance of a flat panel visual display includes capturing a plurality of image measurements from a visual display at a plurality of different view angles. The method also includes selecting one or more points of interest on the visual display, and calculating tristimulus values (X, Y, Z) for each point of interest at each of the plurality of view angles. The method further includes generating a view angle performance plot for the one or more selected points of interest.

Abstract: A projector includes a projecting module for projecting a projecting image on a screen panel, an image sensor for capturing an image of an object which is located outside of the projecting module and faces toward the lens module, a light director, and a controlling unit. The projecting module has a lens module and a light source for emitting light transmitting through the lens module. The light director is movable between a first position where the light director is located outside of a light path associated with the lens module, and a second position where the light director is configured for directing light of the object through the lens module to be incident on the image sensor. The controlling unit controls the light director to move between the first and second positions.

Abstract: A vision alignment system and method is provided. The vision alignment system includes one or more grouped alignment plates with guiding inserts configured to receive multiple devices, and groups of three actuators, configured to actuate the alignment plates to correct the position offsets of multiple devices as a group. The position offsets between the device and contactor are determined by a device-view camera during runtime and a contactor-view camera during calibration time. The vision alignment system also includes a pick-and-place handler, configured to transport devices.

Abstract: A method for evaluating a color picture tube includes displaying on a display surface of a color picture tube a measurement pattern including a plurality of first patterns arranged at different positions relative to fluophor dots of said color picture tube and a plurality of second patterns near said first patterns and sufficiently large relative to said fluophor dots. A first image is obtained using an imaging element to image said displayed measurement pattern. A second image is obtained using said imaging element to image while controlling light intake to allow brightness components of no more than about 1% of maximum luminance from said first image to be separated from noise and imaged. A third image is created by combining said first image and said second image while adjusting scales according to a light intake ratio. From said third image, display center positions of said plurality of first patterns is calculated using said second pattern positions.

Abstract: According to the invention, an electronic module tester for engaging a camera module is disclosed. The electronic module tester includes a camera tester body, an engagement ring, and a camera back support. The engagement ring engages a lens holder of the camera module, where the engagement ring comprises an engagement surface, an outer circumference and an inner circumference. The engagement surface rotates and is not keyed for any key on the lens holder. The camera back support engages a back of the camera module, where the back is on the opposite side of camera module as the lens holder. The engagement ring and the camera back support are separated, but biased together to engage the camera module.

Abstract: A realtime video quality measurement instrument may be configured for both double-ended and single-ended operation. For double-ended operation reference and test video signals are stored in respective buffers and spatial/temporally aligned. Desired quality measurements are performed on the aligned frames of the test and reference video signals according to stored setup instructions. For single-ended operation the reference video signal and a signature for the reference video signal are pre-stored together with the desired quality measurements for the frames of the reference video signal. Then the test video signal is received, signatures determined, and the test and reference video signals aligned using the signatures. The desired quality measurements are then performed on the aligned frames of the test and reference video signals.

Abstract: There is provided a position detection apparatus for detecting position of an image pickup device that outputs an output signal corresponding to intensity of detected light, having a light source for generating light, an illumination lens for illuminating the light generated by the light source onto the image pickup device, a position detecting section for detecting relative position of the image pickup device with respect to the illumination lens based on the output signal outputted out of the image pickup device corresponding to the light received via the illumination lens and a moving section for changing the relative position of the image pickup device to position set in advance by moving at least one of the image pickup device and the illumination lens based on the relative position detected by the position detecting section.

Abstract: The present invention relates to a method for the recognition and tracking of a moving object, in particular of a pedestrian, from a motor vehicle, at which a camera device is arranged. An image of the environment including picture elements is taken in the range of view of the camera device (20) by means of the camera device at regular time intervals and those picture elements are identified with the help of an image processing system which correspond to moving objects to be tracked.

Abstract: The present invention provides a method and an apparatus for color calibration for calibrating an input color. A target color represented by a first coordinate pair (X1, Y1). An input color, which is to be calibrated, is represented by a second coordinate pair (X2, Y2) and can be adjusted with a chrominance parameter Pb and a chrominance parameter Pr. The first coordinate pair (X1, Y1) and the second coordinate pair (X2, Y2) are compared to obtain a state. In response to the state, Pb and Pr are adjusted until the second coordinate pair is equal to the first coordinate pair. Therefore, the input color is calibrated to match the target color.