Abstract: Deriving a motion vector of a current block, in a current frame, including: generating a motion vector predictor candidate list including a set of first motion vectors and a second motion vector, wherein a first motion vector of the set belongs to a block adjacent to the current block in the current frame, and the second motion vector is a temporal motion vector of a pixel at a modified position (x?, y?) in a previous frame, the modified position (x?, y?) being derived by modifying a top-left position (x, y) of the current block. The method also includes deriving the modified position (x?, y?) using arithmetic shift operations; setting the second motion vector equal to a motion vector at the modified position (x?, y?) of the pixel in the previous frame; and deriving the motion vector of the current block using a motion vector predictor and a difference motion vector.

Abstract: Methods of encoding and decoding for video data are described in which multi-level significance maps are used in the encoding and decoding processes. The significant-coefficient flags that form the significance map are grouped into contiguous groups, and a significant-coefficient-group flag signifies for each group whether that group contains no non-zero significant-coefficient flags. A multi-level scan order may be used in which significant-coefficient flags are scanned group-by-group. The group scan order specifies the order in which the groups are processed, and the scan order specifies the order in which individual significant-coefficient flags within the group are processed. The bitstream may interleave the significant-coefficient-group flags and their corresponding significant-coefficient flags, if any.

Abstract: A depth-sensing method for a time-of-flight depth camera includes irradiating a subject with pulsed light of spatially alternating bright and dark features, and receiving the pulsed light reflected back from the subject onto an array of pixels. At each pixel of the array, a signal is presented that depends on distance from the depth camera to the subject locus imaged onto that pixel. In this method, the subject is mapped based on the signal from pixels that image subject loci directly irradiated by the bright features, while omitting or weighting negatively the signal from pixels that image subject loci under the dark features.

Abstract: A method for delivering video over a network includes encoding, by a hosting service, a moving picture which includes a sequence of video frames as a primary compressed video stream and a secondary compressed video stream comprising a subset of the primary compressed video stream. The primary and secondary compressed video streams are then and the secondary compressed video stream transmitted over a network to a client device. The client device selects the primary compressed video stream for decoding in the absence of packet loss; however, if packet loss is detected, the client device selects the secondary compressed video stream for decoding.

Abstract: A viewing aid includes a camera, a viewing surface within a field of view of the camera, a memory, a display, and software programmed to track a tracking element within the field of view. Viewing material is placed on the viewing surface. The camera, viewing surface, and material all remain substantially stationary. The camera captures and stores an initial image of the material in the memory. The software then tracks the location of a tracking element within the field of view then maps the location to a portion of the initial image in memory using an X-Y coordinate system, and/or identifies character elements of the material adjacent the tracking element then maps the character elements to corresponding character elements of the initial image in memory. An enhanced image is then displayed on the display corresponding to the mapped portion of the initial image.

Abstract: A face recognition device includes: an image capture unit, an area detection unit, a feature amount extraction unit, a distance estimation unit and a feature amount update unit. The image capture unit is configured to capture an image of an object. The area detection unit is configured to detect a given area of the object based on an image obtained as an image capture result of the image capture unit. The feature amount extraction unit is configured to extract a feature amount within the given area detected by the area detection unit. The distance estimation unit is configured to estimate a distance between the image capture unit and the given area. The feature amount update unit is configured to update the feature amount extracted by the feature amount extraction unit based on the distance estimated by the distance estimation unit.

Abstract: An image display method includes: receiving, from a single camera, first and second image information for first and second captured images captured from different perspectives, the first image information having a first data density; selecting a portion of the first captured image for display with a higher level of detail than other portions of the first captured image, the selected portion corresponding to a first area of the first captured image; displaying the selected portion in a first displayed image, using a second data density relative to the selected portion of the first captured image; and displaying another portion of the first captured image, in a second displayed image, using a third data density; where the another portion of the first captured image is other than the selected portion of the first captured image; and where the third data density is lower than the second data density.

Abstract: A video encoding/decoding apparatus, an adaptive deblocking filtering apparatus and a filtering method for same, and a recording medium are disclosed.

Abstract: Example embodiments relate to generating a combined image of a presentation surface. In example embodiments, an image including a portion of a presentation surface is captured using a camera. A location identifier is then received, where the location identifier specifies a location of a digital version of the content displayed on the presentation surface. Next, the digital version of the content displayed on the presentation surface is retrieved from the location specified by the location identifier. Finally, a combined image is generated by combining the captured image and the retrieved digital version of the content displayed on the presentation surface.

Abstract: Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.

Abstract: A system and method for generating a video sequence having mouth movements synchronized with speech sounds are disclosed. The system utilizes a database of n-phones as the smallest selectable unit, wherein n is larger than 1 and preferably 3. The system calculates a target cost for each candidate n-phone for a target frame using a phonetic distance, coarticulation parameter, and speech rate. For each n-phone in a target sequence, the system searches for candidate n-phones that are visually similar according to the target cost. The system samples each candidate n-phone to get a same number of frames as in the target sequence and builds a video frame lattice of candidate video frames. The system assigns a joint cost to each pair of adjacent frames and searches the video frame lattice to construct the video sequence by finding the optimal path through the lattice according to the minimum of the sum of the target cost and the joint cost over the sequence.

Abstract: Method and apparatus for measuring sizes of objects by using photograph. Method includes taking photograph by using camera; recognizing reference scale in photograph and measuring size of reference scale; measuring vertical direction angle and horizontal direction angle between the camera and the objects by using image properties of the recognized reference scale; recognizing the objects in the photograph and measuring vertical sizes and horizontal sizes of the objects; and acquiring actual vertical sizes and actual horizontal sizes of the objects by compensating the measured vertical size and the measured horizontal size of the objects based on the size of the reference scale, the actual size of the reference scale, and the vertical and horizontal direction angles. Therefore, heights and widths of objects distributed throughout a wide area may be precisely measured regardless of positions of the objects by using a reference scale for comparatively measuring sizes of the objects.

Abstract: An apparatus comprising a sensor and a processor. The sensor may be configured to capture a first video signal having a first field of view. The processor may be configured to generate a second video signal having a second field of view and a third video signal having a third field of view. The second video signal may generate the second field of view to include a first portion of the first video signal. The third video signal may generate the third field of view to include a second portion of the first video signal. The second portion may be processed to remove possible warping present on a bottom portion of the first video signal. The first and second portions may comprise an area less than the first field of view.

Abstract: In one embodiment, an edge server in a content-distribution network (CDN) stores a video asset in the form of partially encoded transport-stream chunks, where the partial encoding does not include quantization processing. When the edge server receives a request from a user device for a particular segment of the asset at a particular quality corresponding to a target bitrate, the edge server retrieves at least one partially encoded chunk corresponding to the request and completes the encoding (including quantization processing) of the at least one partially encoded chunk to generate an output file at the requested target bitrate. The edge server then adds corresponding audio data and any auxiliary data to the output file to generate a transport-stream file. The edge server then transmits the transport-stream to the user device as one or more transport-stream packets.

Abstract: A method and apparatus are provided for encapsulating a plurality of data substreams encoded in a bit stream, wherein the encoded data substream is obtained by entropy encoding of a symbol subsequence representing an image or a series of images. The method includes grouping data substreams into substream pairs according to an iterative traversal order predetermined from the plurality of substreams, and on the basis of a pair of the substreams, obtaining a symmetrical pair by reversing a data order making up the second substream of the pair. The obtained pairs are then concatenated within a sequence. The binary stream is created by encapsulating the sequence and information related to a number of substreams and related to the sizes of pairs of symmetrical substreams.

Abstract: Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.

Abstract: A stereoscopic video temporal frame offset measurement system uses an improved signature curve generator to generate a robust signature curve for each of the left and right image sequences of a stereo video signal. The resulting signature curves are cross-correlated over a specified correlation range to generate cross-correlation coefficients. The cross-correlation coefficients are compared to a high threshold, and a temporal frame offset is generated and displayed for each cross-correlation coefficient that exceeds the high threshold. Each new temporal frame offset result is highlighted when displayed, otherwise the last result is displayed in a background fashion.

Abstract: A method for performing parallel coding with ordered entropy slices includes: providing a plurality of entropy slices to a plurality of processing elements with a causal criterion on processing order, wherein each entropy slice includes a plurality of macroblocks; and respectively starting to perform a coding procedure for the plurality of entropy slices according to the causal criterion, so that at least a portion of the processing elements are processed in parallel during at least a portion of processing time. An associated apparatus for performing parallel coding with ordered entropy slices includes: a plurality of processing elements; and a controller. The processing elements are arranged to process the entropy slices. In addition, the controller is arranged to provide the plurality of entropy slices with the causal criterion, and controls the operations of the processing elements.

Abstract: A reduction in the number of binarizations and/or contexts used in context adaptive binary arithmetic coding (CABAC) for video coding is proposed. In particular, this disclosure proposes techniques that may lower the number contexts used in CABAC by up to 56.

Abstract: A stereoscopic image display device includes a display unit including a plurality of pixels and a data driver supplying first image data for a first view point to the plurality of pixels, second image data for a second view point to the plurality of pixels after supply of the first image data, third image data for the second view point to the plurality of pixels after supply of the second image data, and fourth image data for the first view point to the plurality of pixels after the input of the third image data. The stereoscopic image display device using such a time-division type scheme may decrease driving speed needed to display the stereoscopic image, may decrease reduction of luminance by reducing an amount of black data, and may decrease power consumption.