Abstract: A system and method of defining a plane for planar coding in JVET in which first and second lines can be defined based upon pixels in left-adjacent and top-adjacent coding units. In some embodiments, the least squares method can be employed to define the relevant lines. One point along each of the lines can then be identified and the y-intercepts of the two lines can be averaged to obtain a third point. The three points can then be used to identify and define a plane for planar coding in JVET.

Abstract: A method and apparatus comprising computer code configured to cause a processor or processors to obtain volumetric data of at least one three-dimensional (3D) visual content, derive a mesh from a frame of the volumetric data, the mesh including a plurality of base mesh vertices, determine a displacement of at least one vertex, that is not of the base mesh vertices, based on a series of projections from at least one of the plurality of base mesh vertices that is a neighboring one of the plurality of base mesh vertices to the at least one vertex, predicting the at least one vertex based at least on the determined displacement, and encode the volumetric data based on the predicted at least one vertex.

Abstract: A method for decoding a picture from a bitstream. The picture comprising a number of units, and the picture being partitioned into a number of spatial segments by a partition structure. The method includes decoding one or more code words in the bitstream; determining that the partition structure is uniform based on the one or more code words; determining the number of spatial segments based on the one or more code words; determining a segment unit size; and deriving the sizes and/or locations for spatial segments in the picture from the one or more code words. Deriving the sizes and/or locations for spatial segments in the picture comprises a first loop over the number of spatial segments in a first dimension or direction. A number of remaining segment units in the first dimension or direction to be segmented is calculated inside the first loop.

Abstract: Techniques are described of a linear model prediction mode. A set of reconstructed neighboring luma samples are determined. Two pairs of luma value and chroma value are determined according to N reconstructed neighboring luma samples, N reconstructed neighboring chroma samples, M reconstructed neighboring luma samples, and M reconstructed neighboring chroma samples. The minimum value of the N reconstructed neighboring luma samples is not less than the maximum luma value of the remaining reconstructed neighboring luma samples of the set of reconstructed neighboring luma samples. The maximum value of the M reconstructed neighboring luma samples is not larger than the minimum luma value of the remaining reconstructed neighboring luma samples of the set of reconstructed neighboring luma samples. M>1 and N>1. Linear model parameters are determined based on the two pairs of luma value and chroma value, and a predictive block is determined based on the linear model parameters.

Abstract: An HMD (head-mounted display) device is disclosed. The HMD device is communicatively connected to a tracking device. The HMD device includes a host memory and a host processor. The host memory is configured to store a host map. The host processor is configured to obtain a client capability data from the tracking device, to generate a partial map from the host map according to the client capability data, and to send the partial map to the tracking device.

Abstract: Several systems and methods for intra-prediction estimation of video pictures are disclosed. In an embodiment, the method includes accessing four ‘N×N’ pixel blocks comprising luma-related pixels. The four ‘N×N’ pixel blocks collectively configure a ‘2N×2N’ pixel block. A first pre-determined number of candidate luma intra-prediction modes is accessed for each of the four ‘N×N’ pixel blocks. A presence of one or more luma intra-prediction modes that are common among the candidate luma intra-prediction modes of at least two of the four ‘N×N’ pixel blocks is identified. The method further includes performing, based on the identification, one of (1) selecting a principal luma intra-prediction mode for the ‘2N×2N’ pixel block and (2) limiting a partitioning size to a ‘N×N’ pixel block size for a portion of the video picture corresponding to the ‘2N×2N’ pixel block.

Abstract: A bioreactor system includes a housing configured to house and support a vessel, a stereo camera having first and second imagers secured to the housing, the stereo camera configured to image a surface of a liquid and a foam exposed to a headspace of the vessel. The system further includes a controller operatively connected to the stereo camera and the stereo camera and controller are configured to create an image of the exposed surface and identify foam on the surface based on the image.

Abstract: A method for filtering in video encoding is provided. In the method, based on a determination that (i) an intra block copy (IBC) mode is disabled for a chroma component of a block and the IBC mode is enabled for a luma component of the block or (ii) decoupled partitioning structures are applied to the luma component of the block and the chroma component of the block, at least one loop filter is enabled for the chroma component of the block, a first sample of the luma component at a location in the block is determined based on a first loop filter configuration that does not include the at least one loop filter, and a second sample of the chroma component at the location in the block is determined based on a second loop filter configuration that includes the at least one loop filter.

Abstract: The disclosure relates to table maintenance for HMVP candidate storage. A method for processing video, including: determining, during a conversion between a first block of visual media data and a corresponding coded representation of the visual media data, the first block being coded with geometry partition mode; determining, based on at least one table storing history based motion vector prediction (HMVP) candidates which include motion information based on previously coded blocks, motion information of at least one sub-portion of the first block; performing the conversion of the first block using the determined motion information.

Abstract: The described positional awareness techniques employing visual-inertial sensory data gathering and analysis hardware with reference to specific example implementations implement improvements in the use of sensors, techniques and hardware design that can enable specific embodiments to provide positional awareness to machines with improved speed and accuracy.

Abstract: Techniques for block wise encoding and decoding may be applied to encoders, decoders, and methods for encoding or decoding. In one example, there is provided a technique to decode or encode a predetermined block of the picture by assigning, based on a first signalization in the data stream, the predetermined block to a first set or a second set; sorting the assigned set of intra-prediction modes according to intra-prediction modes used for neighboring blocks, neighboring the predetermined block, to obtain a list of intra prediction modes; deriving, for the predetermined block, from the data stream, an index into the list of intra prediction modes; and predicting the predetermined block using an intra prediction mode onto which the index points.

Abstract: The present invention relates to an image encoding and decoding technique for a high-definition video compression method and device for an omnidirectional security camera, and more specifically, to a method and a device whereby a differential motion vector is effectively transmitted, and an actual motion vector is calculated using the transmitted differential motion vector, and thus motion compensation is performed.

Abstract: A video processing method is provided. A target video frame is obtained from a video. A target data block is determined from the target video frame. Data block indicator information of the target data block is determined based on a scene complexity of the target data block. The target data block is divided into a plurality of subdata blocks. Subblock indicator information of the subdata blocks are determined based on scene complexities of the subdata blocks. An encoding mode for the target data block is determined according to the data block indicator information and the subblock indicator information. The target data block is encoded according to the determined encoding mode.

Abstract: An image decoding method according to embodiments of the present document may comprise the steps of: acquiring, via a bitstream, image information including residual information; generating reconstruction samples on the basis of the residual information; and performing an in-loop filtering procedure for the reconstruction samples so as to generate modified reconstruction samples. The step of generating of the modified reconstruction samples may comprise a step of determining whether the in-loop filtering procedure is performed across virtual boundaries. In an example, wherein the image information includes an SPS, and on the basis of whether reference picture resampling is available, whether the SPS includes additional virtual boundary-related information may be determined.

Abstract: Devices and methods for Intra prediction are provided. The method includes: obtaining a value of an indication information of a current block. When the value of the indication information indicates the intra prediction mode of the current block is not comprised in the set of most probable modes, deriving the intra prediction mode IntraPredModeY of the current block by the following ordered steps: i. IntraPredModeY is set equal to intra_luma_mpm_remainder[xCb][yCb], ii. The value of IntraPredModeY is incremented by one. The method can improve the efficiency to determine the intra prediction mode of the current block.

Abstract: A distance measurement device according to the present disclosure includes: a laser irradiation unit that irradiates a measurement target with laser light; and a laser light receiving unit including a light receiving element that receives the laser light reflected by the measurement target on a pixel-by-pixel basis. Furthermore, the pitch of the unit pixels of the light receiving element varies with location in a light receiving pixel area. A mobile apparatus according to the present disclosure is equipped with a distance measurement device having the above configuration.

Abstract: A method, computer program, and computer system is provided for signaling output layer sets in a coded video stream. Video data having multiple layers is received. One or more syntax elements are identified. The syntax elements specify one or more output layer sets corresponding to output layers from among the multiple layers of the received video data. The one or more output layers corresponding to the specified output layer sets are decoded and displayed.

Abstract: An encoder configured to generate an encoded bitstream for decoding by a compatible decoder, wherein the decoder receives the encoded bitstream with a current picture including a current block having a first partition boundary partitioning the block into first and second non-rectangular regions and a second partition boundary, intersecting the first partition boundary, and partitioning the second non-rectangular region into three portions. Using the encoded bitstream, the decoder determines a first predictor for use within the first non-rectangular region using a first motion vector selected from a first list of motion vector candidates, determines a second predictor for use within the second non-rectangular region using a second motion vector selected from a second list of motion vector candidates; and decodes the current block using the first predictor and the second predictor. Decoding further includes smoothing the first predictor and the second predictor across the first partition boundary.

Abstract: A laser beam steering system is disclosed which includes a laser source which produces a pulsed laser light beam with a frequency comb spectrum, a first metasurface configured to i) directly receive the pulsed laser and ii) directly generate a diffracted pulsed laser output at different frequencies with a beam at a center frequency normal to the first metasurface; and a second metasurface configured to i) directly receive the diffracted pulsed laser output and ii) to focus onto different foci at a focal plane, light propagating from the focal plane leads to generation of one or more optical beams that are controlled in space and time.

Abstract: A video processing method is provided to include: determining, based on a rule, whether to use a 4-tap interpolation filter for a conversion between a current video block of a current video unit of a video and a coded representation of the video, wherein the current video block is coded using intra mode in the coded representation; and performing the conversion based on the determining.