Unlock instant, AI-driven research and patent intelligence for your innovation.

A method and a device for picture encoding and decoding

A picture and encoding technology, which is applied to the block field of encoding and decoding picture parts, can solve problems such as low efficiency

Active Publication Date: 2020-03-06
INTERDIGITAL CE PATENT HLDG
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This approach is thus inefficient since most CTUs of Fig. 1 can only inherit their SAO parameters from a single CTU, while 3 sets of SAO parameters are encoded in the bitstream (i.e., one set of SAO parameters for each CTU 0, 2 and 6 )

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and a device for picture encoding and decoding
  • A method and a device for picture encoding and decoding
  • A method and a device for picture encoding and decoding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0094] It is to be understood that the drawings and description have been simplified to show elements relevant to a clear understanding of the present principles, while many other elements found in typical encoding and / or decoding devices have been left out for the sake of clarity. It will be understood that, although the terms first and second may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another.

[0095] A picture is an array of luma samples in monochrome format, or an array of luma samples and two corresponding chroma samples in 4:2:0, 4:2:2, and 4:4:4 color formats, or more Typically, an array of three color components (eg, green, red, blue). Typically, a "block" is for a specific region in the sample array (eg, luma Y), and a "cell" includes a co-located block of all color components (eg, luma Y and possibly chroma Cb and chroma Cr). A slice is an integer n...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A decoding method for decoding blocks of a picture part is disclosed that comprises : decoding a plurality of candidate sets of filter parameters from a bitstream; decoding for a current block of saidpicture an index identifying one of the candidate sets of filter parameters from said bitstream; decoding said current block from said bitstream; and filtering said decoded current block with the candidate set of filter parameters identified by said decoded index.

Description

technical field [0001] The present principles generally relate to methods and apparatus for encoding and decoding blocks of picture portions, and more particularly to a method and apparatus for encoding and decoding pictures with in-loop filtering (eg, with sample adaptive offset filtering). Background technique [0002] To achieve high compression efficiency, video coding schemes typically employ prediction and transform to exploit spatial and temporal redundancies in video content. In general, intra- or inter-frame correlations are exploited using intra- or inter-frame prediction, and then transform, quantize and entropy encode the differences (often denoted as residuals) between groups of samples of the original image and the predicted image. To reconstruct the video, the compressed data is decoded through inverse processing corresponding to prediction, transform, quantization, and entropy coding. [0003] Conventional video coding schemes include an in-loop filtering pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/70H04N19/147H04N19/82
CPCH04N19/70H04N19/147H04N19/82H04N19/186H04N19/117H04N19/176
Inventor P.博德斯Y.陈F.拉卡普F.加尔平
Owner INTERDIGITAL CE PATENT HLDG