A method and apparatus for encoding a video stream using video point cloud coding, the decoding including obtaining an input point cloud; dividing the input point cloud into a plurality of chunks, including a first chunk including a first plurality of points and a second chunk including a second plurality of points; generating a first plurality of patches based on the first plurality of points; generating a second plurality of patches based on the second plurality of points; packing the first plurality of patches and the second plurality of patches into an image; and generating the video stream based on the image.

An H.265 encoding device is described. The encoding device may include a preprocessing module; a coarse selection module; and a precise comparison module. The preprocessing module is configured to divide a current frame from an original video into multiple CTU blocks. The coarse selection module is configured to divide a CTU block based on multiple partition modes, and perform inter-prediction and intra-prediction and generate a prediction information corresponding to the partition modes. The precise comparison module is configured to perform cost comparison, select a partition mode with the lowest cost, generate entropy coding information and reconstruction information based on the selected partition mode and its corresponding encoding information.

A method for processing a vide signal, according to the present invention comprises generating a reference picture list based on a current picture reference flag for a current picture, obtaining motion information about a current block in the current picture, restoring the current block using the motion information of the current block and the reference picture list relating to the current picture, and applying a deblocking filter to the stored current block.

Aspects of the disclosure provide a method of video coding includes receiving input data associated with a first block and a second block of an image frame. The method further includes identifying a reference size and performing a deblocking process if it is determined that the deblocking process is to be performed. The preforming the deblocking process may include processing pixels adjacent to the block boundary using a first set of deblocking filter settings if a first block size of the first block and a second block size of the second block are greater than the reference size, and processing the pixels using a second set of deblocking filter settings if the first block size or the second block size is not greater than the reference size.

An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bitstream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

When removing a block distortion occurring in a local decoded image, a loop filtering part 11 of an image coding device carries out a filtering process on each of signal components (a luminance signal component and color difference signal components) after setting the intensity of a filter for removing the block distortion for each of the signal components according to a coding mode (an intra coding mode or an inter coding mode) selected by a coding controlling part 1.

Methods and systems related to adaptive loop filters (ALFs) are discussed. Prior ALF designs may consider only direction and activity information for classification of the ALF. As such, ALF coding performance may be degraded in some examples where a less accurate ALF classification is determined. Improvements include determining ALF classifications based on deblocking filter results.

A portion Y of a degraded frame is restored using a projection operation that uses a first projection parameter ?, a second projection parameter ?, and at least two guide portions. Restoring the portion Y of the degraded frame includes generating, using first restoration parameters, a first guide portion Y.sub.1 for the portion Y; generating, using second restoration parameters, a second guide portion Y.sub.2 for the portion Y; and generating a reconstructed portion Y.sub.R, wherein the projection operation is based on ?(Y.sub.1?Y)+?(Y.sub.2?Y).

A decoding method is disclosed that comprises:decoding (S120) a block of a picture, said block being intra predicted from a plurality of reference blocks;determining (S130) a frontier inside the decoded block based on a frontier existing between said plurality of reference blocks; andfiltering (S140) with a de-artifacting filter along the frontier determined inside the decoded block.

When removing a block distortion occurring in a local decoded image, a loop filtering part 11 of an image coding device carries out a filtering process on each of signal components (a luminance signal component and color difference signal components) after setting the intensity of a filter for removing the block distortion for each of the signal components according to a coding mode (an intra coding mode or an inter coding mode) selected by a coding controlling part 1.