Motion vector determination method, coding compression method and related device

Abstract

The embodiment of the invention discloses a motion vector determination method, which comprises the following steps of: before an MV (Motion Vector) of a target block in an image frame is calculated,firstly determining a reference block which has higher position relevancy with the target block in the image frame, for example, meets a first preset condition; determining a reference block from thereference blocks as a candidate block; if the MV of the candidate block conforms to a second preset condition, indicating that the candidate block is closer to the target block on the image frame. TheMV of the candidate block can be similar to the MV of the target block to a great extent, the MV of the candidate block is taken as the MV of the target block, the video data is compressed accordingto the MV, so that not only is the compression quality of the video data not influenced, but also the calculation of obtaining the MV for the target block is not needed, the calculation amount is reduced, the coding efficiency is improved, and the data compression requirement of the video data corresponding to the high-quality video at present is met. The embodiment of the invention also disclosesa coding compression method and a related device.

Description

technical field [0001] The present application relates to the field of data processing, in particular to a method for determining a motion vector, a coding compression method and related devices. Background technique [0002] With the development of video technology, users can use terminals to access the Internet to obtain various video services, such as performing live broadcasts, watching live broadcasts, watching videos, uploading videos, and so on. When obtaining video services through a terminal, video data in the video service needs to be transmitted between two or more parties. For example, when a user uses a terminal to watch a live broadcast, the server needs to transmit the live video data to the terminal. [0003] With the increasing demand of users to watch videos, the development trend of video services is to improve video quality, such as improving video definition and frame rate. However, the capacity of video data corresponding to high-quality video is relat...

AI Technical Summary

Problems solved by technology

However, due to the limitations of the traditional method, the computational complexity required for video data compression with large capacity is very high, and a large amount of computing resources will be consumed in the process of calculating the MV in the image frame. The delay caused by the amount of calculation makes it difficult to achieve real-time encoding and compression in traditional methods. That is to say, it is possible that the video data compressed and transmitted for one minute can only provide half a minute of playback time, which makes it difficult for the video data obtained by the receiving device to support normal Play, causing playback freeze

It can be seen that the traditional method cannot meet the current data compression requirements for video data corresponding to high-quality video

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