Parallel implementation method, device and system for advanced motion vector prediction AMVP

Abstract

The embodiment of the invention provides a parallel implementation method, a device and a system for advanced motion vector prediction AMVP. The parallel implementation method includes: a motion vector prediction election set of a coding unit of a coding end is constructed in a parallel way by all the prediction units in the coding unit; motion vector prediction is carried out by all the prediction units in the coding unit in a parallel way according to the motion vector prediction election set constructed by the prediction units; motion estimation is carried out by every prediction units in the coding unit according to the prediction motion vector generated by the prediction unit. In the parallel implementation method, the device and the system for advanced motion vector prediction, a motion vector prediction election set of a coding unit of a coding end is constructed in a parallel way by all the prediction units in the coding unit, motion vector prediction is carried out by all the prediction units in the coding unit in a parallel way according to the motion vector prediction election set constructed by the prediction units, and motion estimation is carried out by every prediction units in the coding unit according to the prediction motion vector generated by the prediction unit, thus parallel for motion estimation of the prediction units of a coder end is achieved.

Description

technical field [0001] The present invention relates to the technical field of multimedia video encoding and decoding, and in particular, to a parallel implementation method, device and system of Advanced Motion Vector Prediction (AMVP). Background technique [0002] In the high-efficiency video coding standard, a coding unit (Coding Unit, CU) is a basic unit of video coding. The size of the coding unit can be from 64x64 to 8x8. Among them, 64x64 becomes the largest coding unit (Largest Coding Unit, LCU). In each coding unit, prediction, transform quantization, entropy coding, post-processing and coding are done. When the coding unit performs prediction, the coding unit may be divided into prediction units (Prediction Unit, PU) of different sizes, and the prediction unit is the basic unit of prediction. Coding units larger than 8x8 can support 2Nx2N, 2NxN, Nx2N three symmetric prediction unit divisions and 2Nx0.5N, 2Nx1.5N, 0.5Nx2N, 1.5Nx2N four asymmetric prediction unit...

AI Technical Summary

Problems solved by technology

[0005] From the above-mentioned prediction unit encoding process, we can see a problem: the current prediction unit will use the motion information of the surrounding adjacent prediction units when encoding, and these motion information cannot be obtained before the adjacent prediction units are encoded. , so that the prediction unit must be serially completed in sequence during encoding

This makes it impossible for multiple prediction units within the same coding unit to construct their motion vector reference sets in parallel.

Images