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Method and apparatus for improved compression/decompression using frame rate up-conversion tool

A frame rate, tool technology used in the field of performing video encoding and decoding

Active Publication Date: 2022-06-07
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of these are already in the syntax shown in Table 2, but others are not

Method used

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  • Method and apparatus for improved compression/decompression using frame rate up-conversion tool
  • Method and apparatus for improved compression/decompression using frame rate up-conversion tool
  • Method and apparatus for improved compression/decompression using frame rate up-conversion tool

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Embodiment Construction

[0025] The field of the embodiments described herein is video compression and is intended to improve the video compression efficiency of prior art video coding schemes.

[0026] An exemplary coding tool recently introduced in the Joint Exploration Model (JEM) is called FRUC (Frame Rate Up-Conversion), or also known as Pattern Matching Motion Derivation, and aims at decoder-side motion block-based motion vector predictor derivation .

[0027] The Frame Rate Up-Conversion (FRUC) tool aims to find the best Motion Vector Predictor (MVP) among the candidate sets for template matching cost. The identified best candidates are then refined towards the minimum template matching cost.

[0028] The FRUC process is similar for each type of block: one process is performed on the entire block, and then, for some specific blocks, a second process can also be performed on subsections. The main difference between these processes is the initial list of candidates and the available template ma...

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PUM

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Abstract

Management of frame rate up-conversion functions is improved by using flags in the video bitstream to control both subsections and subprocessing of video images. Instead of a single flag controlling frame rate up-conversion, at least one embodiment uses additional signaling to determine whether an encoder or decoder should implement frame rate up-conversion for a particular video encoded portion, or whether to implement processing associated with frame rate up-conversion one.

Description

technical field [0001] The present principles relate to video compression and, more particularly, to performing video encoding and decoding. Background technique [0002] Many attempts have been made to improve the coding efficiency of block-based codecs. Frame Rate Up-Conversion (FRUC) is a tool that allows motion vector predictors to be derived without any information (ie without supplementary syntax). The FRUC process is completely symmetrical because the same operations are performed on the decoding side as on the encoding side. [0003] When using several seed tools, the tool can be fully on / off with a flag (as shown in Table 2): [0004] The AMVP (Advanced Motion Vector Prediction) block uses a template matching cost function and has no signaling. [0005] A merge block can use sub-section refinement in the same process, using two different template matching cost functions, and with some signaling (on / off template / bilateral). [0006] Table 1 provides the FRUC tool...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/70H04N19/56H04N19/533H04N19/57H04N19/52H04N19/119H04N19/103H04N19/46H04N19/513
CPCH04N19/52H04N19/119H04N19/56H04N19/139H04N19/513H04N19/46H04N19/57H04N19/533H04N19/105H04N19/172H04N19/521H04N19/189H04N19/70H04N19/196
Inventor A.罗伯特F.勒林内克F.厄本
Owner INTERDIGITAL CE PATENT HLDG