Unlock instant, AI-driven research and patent intelligence for your innovation.

Video compression method and video compression device

A video compression, upper right technology, applied in the direction of digital video signal modification, electrical components, image communication, etc., can solve problems such as affecting video compression effects

Active Publication Date: 2016-12-21
IND TECH RES INST
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setting of the starting point for searching for similar patterns in the reference frame can significantly affect the video compression 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
  • Video compression method and video compression device
  • Video compression method and video compression device
  • Video compression method and video compression device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0045] figure 1 An embodiment of a video compression device is illustrated in a block diagram, wherein two techniques of inter-prediction and intra-prediction are applied, and the inter-prediction technique is specifically described below.

[0046] As shown in the figure, a motion estimation module 102 extracts information about a current frame and a reference frame from a storage unit 104 for motion vector estimation. The output of the motion detection module 102 is supplied to a motion compensation (motion compensation) module 106 to perform motion compensation on the information of the reference frame to realize inter-frame prediction. A predicted frame 108 generated by the motion compensation module 106 will be compared with the current frame, and the difference (residues) 110 between the two can be converted and quantized, and then reordered and entropy encoded (entropy encoder) ) to the Network Abstraction Layer (NAL). The disclosed technology has a special design for ...

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

A video compression method and device. The video compression method includes: extracting a plurality of reference motion vectors of a current macroblock, these reference motion vectors are provided by pixel blocks of at least two sizes in the reference macroblock of the current macroblock; identifying from these reference motion vectors A median value motion vector is obtained, and a search starting point of a similar macroblock is set according to the median value motion vector; a most similar macroblock of the current macroblock is searched from a reference frame according to the similar macroblock search start point and, obtaining a motion vector based on the searched most similar macroblock and the current macroblock for use in video compression.

Description

technical field [0001] The invention discloses a video compression method and a video compression device. Background technique [0002] Video compression includes an inter prediction technique. The inter-frame prediction includes finding out the change (eg, motion vector) between a current frame and a reference frame, and then estimating a predicted frame from the reference frame according to the motion vector. An accurate predicted frame will make the amount of residues between the current frame and the predicted frame very small - the video compression in question compresses the residues. [0003] It can be seen from the above that the effect of video compression depends on the accuracy of the predicted frame, and the accuracy of the predicted frame is affected by the motion vector estimation technique. For motion vector estimation of a picture to be coded, it is usually necessary to search for similar pictures in the reference frame first. The setting of the search sta...

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): H04N19/51H04N19/176
Inventor 周凡迪陈世杰张志豪
Owner IND TECH RES INST