Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A fast motion estimation video coding method

A video coding and fast motion technology, applied in the field of image coding, can solve problems such as inability to obtain good motion search results, complex video motion, loss of image quality, etc., to reduce search workload, improve search efficiency, and reduce calculations Effect

Active Publication Date: 2022-05-24
杭州微帧信息科技有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to these motion search methods being terminated at the local optimal position, and the quality of the image is lost to a certain extent.
In addition, when the reference distance between the current to-be-encoded macroblock and the reference macroblock is long, and the video motion is complex, it may not be possible to obtain a good motion search effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A fast motion estimation video coding method
  • A fast motion estimation video coding method
  • A fast motion estimation video coding method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0047] figure 1 A schematic flowchart of a fast motion estimation video coding method is shown, such as figure 1 As shown, the video coding low-complexity motion search method provided by the embodiment of the present invention specifically includes the following contents:

[0048] Step 101, pre-analyze to obtain a motion vector candidate value list.

[0049] The pre-analysis obtained motion vector candidate value list includes but is not limited to MV(0,0), the best pre-analysis motion vector, and the motion search prediction value MVP list.

[0050] The optimal pre-analyzed motion vector is obtained by pre-analyzing the motion estimation between the curre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a fast motion estimation video coding method, which belongs to the technical field of image coding. The method includes: performing global pre-analysis on a macro block to be coded, and listing a motion vector candidate value list. Judging whether the optimal search result can be obtained according to the motion vector candidate value list, if not, according to the preset judgment condition, it is judged to use different fast search methods to further search the macroblock to be coded to obtain the optimal search result. The method provided by the invention pre-analyzes the whole situation, preliminarily screens the candidate list of motion vectors, and avoids the problem of local optimum in the traditional fast motion estimation algorithm. The cross-decomposition search method used in the present invention improves the search efficiency under the premise of ensuring the search quality. The step-by-step cross search method sets a reasonable initialization step threshold to avoid the waste of computing resources when the initial step is set too large, and avoids the initial If the step size is set too small, the optimal reference matching macroblock will be missed.

Description

technical field [0001] The present invention relates to the technical field of image coding, in particular to a fast motion estimation video coding method. Background technique [0002] Motion estimation is the process of finding the most similar matching coded block to the current block to be coded in the search window of the previous reconstructed reference frame or frames. The position difference between the current block to be coded and the matching block is called a motion vector. Full search (FS, Full search) algorithm is the most direct implementation of motion estimation. The FS algorithm searches all the points in the search window, so the optimal matching can be obtained, but the FS algorithm has a huge amount of calculation and is difficult to realize in real time. Generally speaking, motion estimation can usually account for about 60% of the computation of the entire video coding. It can be seen that motion estimation is an important part of inter-frame predic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/513H04N19/51
CPCH04N19/513H04N19/51
Inventor 孔令一朱政刘宇新钱涛
Owner 杭州微帧信息科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com