Abstract: A video quality comparison tool provides for direct visual perceptual comparison of video sequences. Two inputs are presented at the same position and size, with no-look user choice of which to see and easy back-and-forth comparison while the videos are playing, single-stepping, or paused.

Abstract: A method is for monitoring the electrical integrity of lines of photosites of an imaging device with matrix array of photosites. The control lines of photosites may include for each line of photosites an emission of elementary electrical control signals for the photosites of the line. The method may include diagnosis of the elementary electrical control signals emitted.

Abstract: This invention provides a calibration system and method for multi-unit display systems without a need for switching the system input resolution/configuration of the display system while calibrating. This serves to avoid carrying out a re-synchronization step. As such, this system and method allows for increases speed and reduced likelihood of failure. This system and method also corrects the display system by providing an arrangement that employs a minimum of required changes so as to avoid any changes that can consequently affect the output image of the display system. Calibration of the system of display units occurs free of any changes to the input resolution and this resolution is maintained in a manner that resists change unless specifically required. Moreover, this system and method enables a resolution for the overall system that differs from the sum of the input resolutions of the discrete, individual display units in the collection.

Abstract: Video processing arrangement including a host computer, a video asset coupled to the computer for generating video signals, and an interface for connecting the video asset to the computer to enable the display of the video signals on a monitor. The video asset includes primary elements such as a primary composite video module that produces different types of a primary video signal and outputs the primary video signal, and a secondary video source module that produces a secondary composite video signal and outputs the secondary composite video signal. The primary composite video module includes a memory component including a user-programmable sequence of bits representative of a video signal and user-programmable signal generators synchronized to the primary video signal output of the primary composite video module. The memory component includes four user specified pulse memories which each hold a series of arbitrary bit line patterns.

Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.

Abstract: A method and system for monitoring video assets provided by a multimedia content distribution network (MCDN) includes an expert test monitoring platform (ETMP) configured to emulate MCDN client systems at a facility of an MCDN service provider. The ETMP may be used to test monitor MCDN performance by acquiring a baseband video signal and performing a test operation including at least one check point condition. The check point condition may be associated with a masked region of the video signal and may also involve a test of an audio channel. A plurality of test operations and/or check point conditions may be defined and executed on the baseband video signal, while the results of the test operation may be logged.

Abstract: Systems and methods of objective video quality measurement based on support vector machines. The video quality measurement systems can obtain information pertaining to features of a target training video, obtain corresponding information pertaining to features of a reference version of the target training video, and employ the target training features and/or the reference training features to build video quality models using such support vector machines. Based on the target training features and/or the reference training features used to build such video quality models, the video quality models can be made to conform more closely to the human visual system. Moreover, using such video quality models in conjunction with target features of a target video whose perceptual quality is to be measured, and/or reference features of a reference video, the video quality measurement systems can be employed to predict measurements of the perceptual quality of such a target video with increased accuracy.

Abstract: An imager including a self test mode. The imager includes a pixel array for providing multiple pixel output signals via multiple columns; and a test switch for (a) receiving a test signal from a test generator and (b) disconnecting a pixel output signal from a column of the pixel array. The test switch provides the test signal to the column of the pixel array. The test signal includes a test voltage that replaces the pixel output signal. The test signal is digitized by an analog-to digital converter (ADC) and provided to a processor. The processor compares the digitized test signal to an expected pixel output signal. The processor also interpolates the output signal from a corresponding pixel using adjacent pixels, when the test switch disconnects the pixel output signal from the column of the pixel array.

Abstract: The aim of the invention is to provide a solution to ensure that the content sent by the IRD is the content effectively displayed on the screen. It is then proposed a system to prevent manipulation of transmitted video data comprising an Integrated Receiver Decoder (IRD) receiving audio/video data, a display device (TV), said IRD comprising means to transmit an HDMI compliant audio/video data stream toward the display device. This system comprising: means to define a variable area at a location of the image displayed on the display device, means to store reference data corresponding to video data of said area which are sent to the display device.

Abstract: A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.

Abstract: A screen time control device includes a source interface for receiving a video signal, a processor connected to the video source interface for overlaying the video signal with a translucent signal to produce an overlaid video signal, and a device interface connected to the processor for receiving the overlaid video signal and providing the overlaid video signal to the display device. The processor substitutes the translucent signal in the overlaid video signal with a parental signal, where the parental signal can be a substantially opaque overlay signal that masks an image on the screen of the display device to prohibit viewing of the screen, a textual message, or a combination of both.

Abstract: An image processing apparatus includes a photographing unit configured to generate a plurality of images by photographing a plurality of times a range which can be photographed, an object detection unit configured to detect a specified object from each of the plurality of images generated by the photographing unit, a position determination unit configured to determine an existing position of the specified object based on a detection result of the specified object in the plurality of images, and a range determination unit configured to determine a photographing range to be photographed within the range which can be photographed based on the existing position of the specified object determined by the position determination unit.

Abstract: An apparatus configured to match an input frame rate of a video stream with an output frame rate of an output stream, the apparatus comprising, at least one memory buffer, an output frame generator, and a threshold measurement unit, the threshold measurement unit configured to generate a control feedback, wherein the box is configured to analyze the control feedback to monitor a state of the at least one memory buffer, the threshold measurement unit further configured analyze the control feedback to regulate between two or more different settings, wherein the two or more different settings include slowing down or speeding up the output frame, wherein the two or more different settings further include slowing down or speeding up of the line rate of the output stream.

Abstract: A video receiving apparatus is provided. The video receiving apparatus may have a video input terminal to input video data, and may include a voltage detector configured to detect a voltage applied to a specific contact point in the video input terminal; and a control unit configured to determine whether a video transmission apparatus is connected to the video input terminal through a predetermined cable, based on a value of the voltage detected by the voltage detector.

Abstract: Provided is a method and a system for detecting an error focus calibration, wherein a first DFOV value is measured in a state before the collimator lens is interposed between the resolution chart and the camera module, and a second DFOV value is measured in a state after the collimator lens is interposed between the resolution chart and the camera module, a determination is made whether a value obtained by subtracting the second DFOV value from the first DFOV value is smaller than a threshold value, and detecting as an error of auto calibration, in a case the subtracted value is greater than the threshold value.

Abstract: A method for generating values for one or more camera calibration parameters is described. The camera calibration parameters may include focal length, lens distortion, and optical center of the lens. A plurality of photographs are captured from a camera on a device which includes an accelerometer. Common features are determined between the captured photographs. Accelerometer data is analyzed for each captured photograph. The values for the camera calibration parameters are generated based on the common features and the accelerometer data and stored for future use with various applications.

Abstract: Provided is an image quality evaluation system for evaluating quality of an image. The image quality evaluation system includes bit extraction means and image quality evaluation means. For predetermined data expressing an image frame of a first image, the bit extraction means extracts a predetermined number of bits which is smaller than the number of bits required for expressing one data piece. By using a value expressed by the bit string extracted by the bit extraction means and a value of data equivalent to the data to be extracted from the bit string in a second image, the image quality evaluation means estimates a difference between the first image and the second image and evaluates the image quality of the first to image or the second image.

Abstract: An optical monitoring device for an optical imaging system having a focal plane, an optical axis and an entry pupil, forming an image of a scene substantially at infinity on an image detector disposed substantially in the focal plane, comprises: a virtually point-like emission source at the periphery of the detector and substantially in the focal plane; a reflecting element with a plane surface upstream of the imaging system relative to the direction of light rays coming from the scene, and according to a position and inclination where a monitoring image of the source produced by the optical system and reflected by the reflecting element is substantially in the focal plane on a detection element connected to a monitoring image analyzer allowing potential optical defects to be identified; the reflecting element having an annular shape allowing passage of light rays coming from the scene and passing through the entry pupil.

Abstract: Various systems and methods for comparing media signals are disclosed. In some embodiments, media signals are compared by identifying characteristic features in the respective signals and then analyzing the characteristic features to determine if the signals contain corresponding content. In other embodiments, the characteristic features are analyzed to determine the extent to which the signals are synchronized in time.

Abstract: A particular customer premises equipment (CPE) device includes a display interface, a processor, and a memory accessible to the processor. The memory includes a plurality of media files that include user assistance information. The memory also includes instructions executable by the processor to access a media file of the plurality of media files and, in response to a user request for assistance, send content of the media file to a display device via a display interface.

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 media container file (1) is generated by organizing media data (2; 3) defined by a media track (12) in the file (1). Sub-track information (72, 74) identifying media data portions (4, 5; 6, 7, 8) of the media data (2; 3) is organized for each sub-track of multiple sub-tracks defined in the media track (12). At least one of the sub-tracks is assigned selection information (62, 64) defining a selective processing of the media data portion (4, 5; 6, 7, 8) defined by the sub-track in relation to other media data organized in the media container file (1). The media data (2, 3) advantageously relate to layered media or media defining multiple camera views which are organized into sub-tracks (12). The selection information (62, 64) allows selection among tracks (12) and sub-tracks when setting up a media session and switching between tracks (12) and sub-tracks during such a media session.

Abstract: Various systems and methods for comparing media signals are disclosed. In some embodiments, media signals are compared by identifying characteristic features in the respective signals and then analyzing the characteristic features to determine if the signals contain corresponding content. In other embodiments, the characteristic features are analyzed to determine the extent to which the signals are synchronized in time.

Abstract: A system and method for detecting media source quality are provided. The system includes a data store comprising a computer readable medium storing a program of instructions for the detection of media source quality; a processor that executes the program of instructions; a video data receiver to receive video raw data, the video raw data corresponding to an uploaded and transcoded video; a video improver to apply a video improvement technique to the received video raw data to produce a modified version of the video raw data; and a video quality assessor to compare the received video raw data and the modified version of the video raw data, and based on the modified version of the video raw data improving on a factor associated with the video improvement technique, the video quality assessor indicates a phenomena affecting the quality of the uploaded and transcoded video.

Abstract: The present invention discloses an apparatus, a method and a computer program for mapping and allocating available television white space channels for a terminal requesting resources. The mapping is based on the data of available overlapping TV white space channels within a geographical tracking area and coexistence with other cellular secondary systems within the area. Furthermore, a location for a moving mode II device may be tracked periodically. The geo-location accuracy of the mode II device affects the TV white space resources which can be allocated to the device.

Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.

Abstract: Disclosed is a mura detection apparatus and method of a display device. The mura detection method includes analyzing image information acquired from a test image displayed by a display panel to detect a plurality of mura candidate areas, extracting feature information and position information of the mura candidate areas, removing non-mura according to the features of the mura candidate areas, detecting white spot mura and black spot mura on the basis of the feature information of the mura candidate areas, detecting black-and-white spot mura on the basis of the position information of the mura candidate areas, and detecting the white spot mura, the black spot mura, and the black-and-white spot mura as final mura to classify a kind, size, and position of the final mura.

Abstract: A first video messaging service, running on top of an operating system in a data processing system, automatically presents a first video message. After using the first video messaging service to present the first video message, the data processing system automatically determines whether the first video messaging service has become nonfunctional. In response to determining that the first video messaging service has become nonfunctional, the data processing system automatically uses a backup video messaging service to present a second video message. The backup video messaging service operates in a boot environment. In one embodiment, the data processing system is configured to provide digital signage, the first video messaging service presents content for the digital signage when the operating system is operational, and the second video messaging service presents content for the digital signage when the operating system is nonfunctional. Other embodiments are described and claimed.

Abstract: A novel image sensor includes a pixel array, a row control circuit, a test signal injection circuit, a sampling circuit, an image processing circuit, a comparison circuit, and a control circuit. In a particular embodiment, the test signal injection circuit injects test signals into the pixel array, the sampling circuit acquires pixel data from the pixel array, and the comparison circuit compares the pixel data with the test signals. If the pixel data does not correspond to the test signals, the comparison circuit outputs an error signal. Additional comparison circuits are provided to detect defects in the control circuitry of an image sensor.

Abstract: According to one embodiment, a content synchronizing method includes: first transmitting when receiving an acquiring request for reference time to determine a timing to synchronize a plurality of pieces of content executed by a plurality of modules with each other from a first module out of the modules, the acquiring request for the reference time to a second module out of the modules; receiving source information indicating an acquisition source of the reference time from the second module; and acquiring reference time information indicating the reference time from the acquisition source indicated by the source information, wherein second transmitting to the first module, together with the reference time information, processing time information indicating processing time from receiving the acquiring request until transmitting the reference time information, the processing time information being used to calculate a time lag between time in the first module and the reference time.

Abstract: A method and apparatus for testing a number of display devices. Images displayed on the number of display devices are received by a computer system for a platform during a performance of a number of tests at a number of test locations for the platform. A portion of the images from the images are identified as a number of images of interest using a policy.

Abstract: A method for measuring the amount of noise in a video image includes receiving a signal from an imaging device; extracting a luma component from a color image; applying a filter to compute the second derivatives of the extracted luma component; determining a ratio of noise pixels to total pixels in the second derivative; and comparing the ratio to a pre-determined ratio.

Abstract: A history information recording device is provided to an image display equipment, for recording, as history information, information about operations that have been executed in the image display equipment up to a present time. The history information recording device includes a connection terminal to which an external storage medium is connected, in which the history information is transmitted to and recorded on the external storage medium connected to the connection terminal in response to a given instruction. Therefore, it is possible to check the history information of the image display equipment without displaying the history information on a screen of the image display equipment.

Abstract: A system for proactively troubleshooting set top box issues may include a media distribution network with a remote requesting device and a programming guide server. The programming guide server may be configured to identify a guide data retrieval profile of the requesting device, compare the guide data retrieval profile to an expected profile, and flag the requesting device for troubleshooting based on a lack of correspondence between the retrieval profile and the expected profile. Additionally methods for discovering related devices, predicting that the related devices also require troubleshooting, and limiting restorative measures to only those devices that have been confirmed to be affected by a service issue may also be implemented by the system.

Abstract: The purpose of an objective video quality evaluation is to automatically assess the quality of video sequences in agreement with human quality perception. The invention addresses the effects of the introduction of a temporal dimension by focusing on the temporal evolutions of spatial distortions, since it has been found that a spatial quality variation cannot be evaluated by simple subtraction of the spatial quality of neighboring frames. An improved method for estimating perceived video quality comprises steps of calculating a first similarity map between adjacent frames of a current sequence, calculating a second similarity map between the corresponding reference frames, and calculating (smg3) a third similarity map, which provides a numerical quality value.

Abstract: Apparatus and method of forming and displaying high dynamic range (HDR) images for various purposes including the testing of image capture devices, such as cameras. A display device has a display panel carrying a plurality of rendered images formed from image data of a scene. At least one light source is used to illuminate the rendered images on the display panel. When the rendered images are aligned with one another and illuminated by the light source, the rendered images are capable of forming a display image having a dynamic range higher than those of the rendered images.

Abstract: Systems and methods of measuring a temporal offset between audio content and video content that employ audio fingerprints from an audio signal in the audio content, and video fingerprints from video frames in the video content. The systems obtain reference audio and video fingerprints prior to transmission of video over a media channel, and obtain target audio and video fingerprints subsequent to transmission of the video over the media channel. Each fingerprint has an associated time stamp. Using the reference and target audio fingerprints and their associated time stamps, the systems determine an audio time stamp offset. Using the reference and target video fingerprints and their associated time stamps, the systems determine a video time stamp offset. Using the audio and video time stamp offsets, the systems determine a temporal offset between the video content and the audio content introduced by the media channel.

Abstract: An image-capturing device and a projection automatic calibration method of a projection device are provided. The image-capturing device includes an image sensing device, a lens, a processing unit and a storage unit. The lens is configured to image a calibration pattern on the image sensing device. The processing unit is configured to issue a projection calibration requirement and analyze the calibration pattern imaged on the image sensing device to obtain information relating to the calibration pattern, and the processing unit is further configured to convert imaging coordinates of the calibration pattern imaged on the image sensing device into projecting coordinates of the projection device by executing a calibration driving program to establish a coordinate conversion table. The storage unit is configured to store the calibration driving program and the coordinate conversion table.

Abstract: Systems and methods are described that directly detect whether or not enhanced vision system images obtained from a moving vehicle are degraded. If they are, image display is turned off to reduce operator distraction. When image quality is restored, image display is turned back on so operators can take advantage of EVS capabilities.

Abstract: A system for analyzing video signals generated by an imaging modality is disclosed. The system includes a video signal input port to which a signal output of the imaging modality being can be connected. Additionally, there is a central processor that includes an analog input module, a signal analysis module, and a data communications module. A plurality of video signal parameters may be measurable from the video signal by the signal analysis module. The system also includes a data output port that is linked to the data communications module of the central processor, which is connectable to an external device for transferring the measure signal parameters thereto.

Abstract: A method for monitoring a testing procedure using an electronic device includes constructing a coordinate system, presetting test parameters, and predetermining a position on a test platform corresponding to each preset test parameter based on the coordinate system. Positions of a test object on the test platform are changed during the testing procedure. Images of the test object are acquired from an image capturing device according to the test parameters. The method monitors the testing procedure by recognizing positions of the test object in the acquired images and determines whether the recognized positions match predetermined positions. When a recognized position does not match the predetermined position, the test object is determined to be positioned on the test platform improperly, and an alert message is outputted.

Abstract: Apparatus, methods, and articles of manufacture for media monitoring are disclosed. In particular, the example apparatus, methods, and articles of manufacture determine a media source type associated with a media signal and select an encoding or decoding mode based on the media source type. An encoding operation encodes the media signal using the selected encoding mode and a decoding operation decodes the media signal using the selected decoding mode.

Abstract: A projection system and an operation method thereof are provided. The projection system includes a video and audio source, an image duplication unit, a plurality of image segmentation units, and a plurality of projectors. The video and audio source receives a sum image parameter, and provides a non-standard format image. The image duplication unit receives and sends one of sum image parameters to the video and audio source. The image segmentation units provide the same sum image parameters, though only one is transmitted to the video and audio source through the image duplication unit. Each of the image segmentation units receives the non-standard format image, and segments a part of the non-standard format image as a standard format image, where the standard format images are partially overlapped with each other. The projectors are respectively coupled to the corresponding image segmentation unit, and display according to the corresponding standard format image.

Abstract: Disclosed is a method and apparatus for concurrently displaying on a display device, a selected main presentation and graphical shapes representative of button presses on a remote control. In one embodiment, the graphical shapes and the selected main presentation are displayed in two separate regions on the display screen. In another embodiment, the graphical shapes are overlaid on the selected main presentation. In yet another embodiment, the graphical shapes and the selected main presentation are displayed in a picture-in-picture format.

Abstract: A method and device for graphically representing the I and/or Q components of digitally modulated high frequency signal are described, in which the I or Q components measured in a temporally successive manner are graphically represented side-by-side on a display device.

Abstract: A TV band device for indoor applications uses information gleaned from a database inquiry based on geo-location information in combination with spectrum sensing to determine if TV channels are available for unlicensed use.

Abstract: A testing apparatus for testing delay characteristics of a multimedia player in an enclosed environment includes a storage device, a controller, a recording device, and a processor. The controller controls the multimedia player to display a video having a number of different scenes with different brightness and sends a switching instruction to switch the scenes. The recording device records a number of ambient light intensities in a darkroom at predetermined time intervals. A testing system executed by the processor compares two adjacent ambient light intensities to determine the actual switching time between the scenes and evaluates the delay characteristic according to differences between the actual switching times and a transmitting time of the instructions to switch.

Abstract: A method, apparatus and system for assessing color characterization quality includes a characterization unit configured for determining at least one of a forward and inverse transform from a first set of device dependent input color values and measured output display values of the first set of device dependent input color values on the display and transforming a second set of device dependent input color values using the determined at least one of a forward and inverse transform to provide an intermediate set of device dependent input color values. The method, apparatus and system further includes a verification unit for performing at least one of a forward transform quality evaluation and an inverse transform quality evaluation.

Abstract: In accordance with some embodiments, a DisplayPort control plane may be supported over a Wireless Gigabit Alliance or other wireless air interface. Some embodiments may efficiently optimize the amount of wireless bandwidth needed to accomplish tasks.

Abstract: The present application relates to a high precision method for calibrating and removing distortion from a lens, and more particularly, a method for calibrating and removing distortion by arranging sensor readings to compensate for its presence and simultaneously optimize the resulting image magnification for best image quality.