A system and method for transmitting compressed video. A transmitter receives uncompressed video data from a video source, and compresses it using one or more reference frames. A receiver receives the compressed video data and decodes it, using the same reference frames, to form display data. The reference frames are stored in compressed form in both the transmitter and the receiver. Each frame of display data becomes a reference frame for the decoding of a subsequent frame.

The present disclosure provides apparatus and methods for signaling sub-block transform (SBT) information. The SBT information is used for coding video data. According to certain disclosed embodiments, an exemplary method includes: signaling a first flag in a Sequence Parameter Set (SPS) of a video sequence indicating whether a sub-block transform (SBT) is enabled; and signaling a second flag indicating a maximum transform block (TB) size that allows the SBT. A maximum coding unit (CU) size that allows the SBT is determined directly based on the maximum TB size in response to the first flag indicating that the SBT is enabled.

A video system that applies constraints on block partitioning is provided. The system receives a partitioning control parameter from a bitstream specifying a maximum block size for enabling ternary-tree split that is constrained to be 64 or smaller. The system receives data from a bitstream for a block of pixels to be decoded as a current block of a current picture of a video. The system splits the current block into one or more partitions recursively, wherein ternary split is disallowed for a partition of the current block unless the partition is less than or equal to the maximum block size. The system reconstructs the one or more partitions of the current block.

Aspects of the disclosure include a video encoding device that includes a processing circuit configured to receive a first block corresponding to a first color space component and a second block corresponding to a second color space component. The processing circuit is configured to determine transform settings for processing a first transformed block and a second transformed block corresponding to the first and second blocks, respectively. The processing circuit is configured to generate a first syntax element set to be signaled in association with the first color space component, and to generate a second syntax element set to be signaled in association with the second color space component, where the first syntax element set indicates a first transform setting for processing the first transformed block, and the second syntax element set indicates a second transform setting for processing the second transformed block.

In encoding a picture, comprising a plurality of tiles, into a bit-stream, a method and apparatus is provided for signaling the tile attribute values per-tile, using a compact syntax. These embodiments signal per-tile attribute values using a loop over the tiles. The tile attributes may, for example, be in the form of a set of tile syntax elements (one syntax element per tile attribute), or for example in the form of a set of flags to enable or disable the usage of the tile attributes. These embodiments provide freedom for an encoder to assign the tile attribute values per tile, or per any subset of tiles in a picture, and the attribute values are signaled in a compact syntax using a loop (or loops) over tiles.

A coordinate measuring machine (CMM) system is provided including utilization of a vision probe (e.g., for performing operations for determining and/or measuring surface profiles of workpieces, etc.) The angular orientation of the vision probe may be adjusted using a rotation mechanism so that the optical axis of the vision probe is directed toward an angled surface of a workpiece (e.g., in some implementations the optical axis may be approximately perpendicular to the angled workpiece surface). X-axis, y-axis and z-axis slide mechanisms (e.g., moving in mutually orthogonal directions) may in conjunction move the vision probe to acquisition positions along an image stack acquisition axis (which may approximately coincide with the optical axis) for acquiring a stack of images of the angled workpiece surface. Focus curve data may be determined from analysis of the image stack, which indicates 3-dimensional positions of surface points on the angled surface of the workpiece.

An encoder includes circuitry and a memory coupled to the circuitry. The circuitry, in operation, determines whether or not a ternary split process of splitting a block into three sub blocks in a first direction parallel to a first longer side of the block is allowed by comparing a size of a second shorter side of the block to a minimum threshold value. The circuitry, responsive to the ternary split process being allowed, writes, into a bitstream, a split direction parameter indicative of a splitting direction. The circuitry, in operation, splits the block into a plurality of sub blocks in a direction indicated by the split direction parameter; and encodes the plurality of sub blocks.

A video encoding method of encoding a multi-view image including one or more basic view images and a plurality of reference view images includes determining a pruning order of the plurality of reference view images, acquiring a plurality of residual reference view images, by pruning the plurality of reference view images based on the one or more basic view images according to the pruning order, encoding the one or more basic view images and the plurality of residual reference view images, and outputting a bitstream including encoding information of the one or more basic view images and the plurality of residual reference view images.

Provided are an image encoding/decoding method and device. The image decoding method performed by the image decoding device, according to the present disclosure, may comprise the steps of: determining a residual sample of a current block; and resetting the value of the residual sample on the basis of whether a color space transform is applied. The step for resetting the value of the residual block may be performed on the basis of a half value of a chroma residual sample value.

An image processing method includes selecting an image in fixed storage of a computer and loading the selected image into memory of the computer. The method further includes representing the loaded image by a processor of the computer in the memory as an initial two-dimensional array of pixel values. Thereafter, the initial two-dimensional array of pixel values may be transformed into a hierarchy of progressively axially decremented two-dimensional arrays of signs and a pair of one-dimensional values for each 2×2 array of signs amongst the decremented two-dimensional arrays of signs. Finally, each of the two-dimensional arrays of signs and each pair of one-dimensional values may be stored in the fixed storage as a compressed form of the selected image.