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Fast HEVC interframe coding method

An inter-frame coding and frame coding technology, which is applied in the field of fast HEVC inter-frame coding, can solve problems such as not having universal applicability, and achieve the effect of reducing coding time and loss

Active Publication Date: 2017-03-22
HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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AI Technical Summary

Problems solved by technology

Most of the existing fast algorithms effectively skip the calculation process of some prediction units in specific scenarios, and are not universally applicable

Method used

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  • Fast HEVC interframe coding method
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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, and the embodiments described by referring to the accompanying drawings are exemplary and are intended to explain the present invention, and cannot be construed as explanations for the present invention. limit.

[0020] An embodiment of the present invention provides a fast HEVC interframe encoding method, please refer to figure 1 , including the following steps:

[0021] Step 1, after encoding of each frame, calculate the encoding distortion SSD value of each 8x8 small block in the frame.

[0022] Step 2, for the coding unit in the P frame, first select the optimal motion vector MV_Best from the N candidate MVs of Merge_2Nx2N, use MV_Best as the motion vector of the prediction unit Skip_2Nx2N, and calculate the coding distortion SSD_Skip of Skip_2Nx2N.

[0023] Step 3, according to the size of MV_Best and the current coding unit, find the corr...

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Abstract

The invention discloses a fast HEVC interframe coding method, which can be applied to various scenarios, and the calculation of Inter-2Nx2N, Inter-Nx2N, Inter-2NxN and Intra-2Nx2N prediction units can be quickly and accurately jumped, thereby greatly reducing the coding time, and meanwhile reducing the loss of the coding quality as much as possible.

Description

technical field [0001] The invention relates to a fast HEVC inter-frame coding method. Background technique [0002] As the latest generation of video coding standard, HEVC can double the compression efficiency compared with the previous generation of H.264 coding standard. Compared with H.264, HEVC introduces many new technologies, among which larger blocks and more flexible block division methods play a very important role in improving coding efficiency. [0003] Specifically: 1. Larger coding blocks, the largest coding block (LCU) size in HEVC is 64x64, while the macroblock size in H.264 is 16x16; 2. The coding block can be recursively divided into smaller ones using quadtree Coding unit (CU), the smallest coding unit can reach 8x8; 3, each coding unit can contain different prediction units (Prediction Unit, PU) and transformation unit (Transform Unit, TU), for inter-frame coding frame Coding unit, prediction unit includes Merge_2Nx2N, Skip_2Nx2N, Inter_2Nx2N, Inter_Nx2...

Claims

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Application Information

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IPC IPC(8): H04N19/109H04N19/122H04N19/513H04N19/59
CPCH04N19/109H04N19/122H04N19/513H04N19/59
Inventor 李日万俊青朱建国
Owner HANGZHOU ARCVIDEO TECHNOLOGY CO LTD
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