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

Method and apparatus for deriving motion vector predictors

A motion vector prediction and motion vector technology, applied in the field of coding technology, can solve the problem of occupying compressed video data bandwidth and achieve the effect of reducing transmission

Active Publication Date: 2017-02-08
HFI INNOVATION INC
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In traditional encoding systems, it may be necessary to transmit side information corresponding to spatial and temporal predictions, which will take up some bandwidth of the compressed video data

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
  • Method and apparatus for deriving motion vector predictors
  • Method and apparatus for deriving motion vector predictors
  • Method and apparatus for deriving motion vector predictors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] In a video coding system, spatial and temporal redundancy can be exploited by using spatial and temporal prediction to reduce information transmission or storage. Spatial prediction is the use of decoded pixels of the same image to form a prediction of the current pixel to be decoded. Spatial prediction is usually performed on a block by block basis, such as 16×16 or 4×4 blocks for H.264 / AVC intra-coded luma signals. In video sequences, adjacent images often have great similarity, and simply using image differences can effectively reduce the conveyed information about static background regions. However, moving objects in video sequences generate large residuals and require higher bit rates to decode the residuals. Therefore, Motion Compensated Prediction (MCP) is usually used to exploit temporal correlation in video sequences.

[0024]MCP can be used in a forward prediction approach, where prediction of a current image block is performed using one or more decoded imag...

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 present invention discloses a method and device for deriving a motion vector predictor, which is used for deriving the motion vector predictor of the motion vector of the current block in the current image in the inter-frame, merge or skip mode, wherein the motion vector is the same as the current The block is correlated with the corresponding block in the target reference image in the given reference list. The method includes: selecting a collocated block corresponding to a collocated image; receiving one or more reference motion vectors of one or more collocated reference blocks related to the collocated block; referencing one or more search motion vectors associated with a block; determining a search order for a search set; determining the motion vector predictor for a current block based on the search set and search order; and providing the motion vector predictor for the current block . The method and apparatus described above can reduce the transmission of side information related to motion vectors.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. 61 / 452,531, filed April 14, 2011, and entitled "New Derivation Method for Temporal Motion Vector Predictor." This application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to video coding, and in particular to coding techniques related to deriving temporal motion vector candidates and motion vector prediction candidates. Background technique [0004] In a video coding system, spatial and temporal redundancy can be reduced by using spatial and temporal prediction, thereby reducing the information to be transmitted. Spatial and temporal prediction respectively use the decoded pixels of the same picture and the reference picture to form the prediction of the current pixel to be decoded. In conventional encoding systems, it may be necessary to transmit side information corresponding to spatial...

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): H04N19/52
CPCH04N19/52H04N19/50H04N19/105H04N19/176H04N19/46H04N19/513H04N19/56H04N19/57H04N19/583
Inventor 林建良蔡玉宝陈渏纹安基程黄毓文雷少民
Owner HFI INNOVATION INC