Coding circuit and method applied to intra-frame prediction of depth image in video coding

Abstract

The invention discloses a coding circuit and a coding method applied to depth image intra-frame prediction in video coding and decoding, the circuit comprises an input data processing module, a coarsesearch module and a fine search module; the input data processing module is a channel for external reference data to be input into the module, and simply processes the data; the coarse search moduleis used for performing initial prediction for a depth image; and the fine search module is used for performing fine prediction again for a prediction result obtained by coarse search. With the circuitand the method provided by the invention, coding time can be reduced, operation cycle of the circuit is shortened, and consequently, performance of the whole video coding circuit is improved.

Description

technical field [0001] The invention belongs to the technical field of intra-frame predictive encoding of video encoding and decoding technology, and specifically relates to an encoding method and an encoding circuit applied to intra-frame prediction of depth images in video encoding and decoding. Background technique [0002] With the continuous development of science and technology, information technology and computer Internet have changed people's daily life to varying degrees. Nowadays, people obtain information mainly from multimedia information, but multimedia information takes video as the core. Compared with ordinary 2D video, 3D video has attracted the attention of the industry and academia because it can provide users with a real and natural reproduction of the scene, and has become one of the hot spots in the field of video research. Compared with ordinary 2D video, 3D contains a larger amount of data, which brings certain difficulties to the transmission and sto...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, there are not many hardware circuit designs for DMM deep modeling mode. GustavoSanchez et al. published in "Energy-AwareLight-Weight DMM-1 Patterns Decoders with Efficiently Storage in 3D-HEVC" published by 2016 Integrated Circuits&Systems Design The circuit described above is one of the few implemented DMM1 mode coding circuits; however, this article does not describe the overall structure of the circuit and the specific implementation method in detail, and only one wedge matching scheme is evaluated in each cycle in the rough search. After the evaluation is completed, the evaluation of the next wedge-shaped block matching scheme is performed according to the judgment of the rate-distortion cost value, which leads to a long encoding time and a long circuit operation cycle, which affects the overall working efficiency of the encoding circuit.

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