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

Quick motion estimation method of multi-view video coding

A multi-view video and fast motion technology, applied in the field of digital video signal coding, can solve problems such as deviation and inaccurate motion information of corresponding blocks

Active Publication Date: 2012-05-09
ZHEJIANG UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the disparity vector of each block is used to obtain the corresponding block of the adjacent viewpoint, it is easy to be affected by the noise disparity vector and deviate from the real corresponding block, resulting in inaccurate motion information of the obtained corresponding block

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
  • Quick motion estimation method of multi-view video coding
  • Quick motion estimation method of multi-view video coding
  • Quick motion estimation method of multi-view video coding

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0054] Such as figure 1 Shown, a multi-view video fast motion estimation method, including the following steps:

[0055] (1) Filtering of the motion vector field;

[0056] (2) global disparity vector calculation;

[0057] (3) reference motion vector selection;

[0058] (4) Search center selection;

[0059] (5) Search range selection;

[0060] (6) Final motion search;

[0061] (7) Complete motion estimation of all blocks.

[0062] Among the above steps, steps (1) and (2) are frame-level operations, and steps (3), (4), (5) and (6) are block-level operations. The block is one of the divided blocks 16×16, 16×8, 8×16, 8×8, 8×4, 4×8 and 4×4 of the macroblock inter-frame estimation, and the motion described below A vector field or disparity vector field is a collection of motion vectors or disparity vectors for the block.

[0063] Taking the 16×16 block as an example, the whole process of the fast motion estimation method for multi-viewpoint video will be described in detail ...

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 quick motion estimation method of multi-view video coding, comprising the following steps of: carrying out spatial median filtering on a motion vector field of coded frames of adjacent views; calculating an overall parallax vector between the current view and the adjacent view by using a parallax vector field of the coded frame of the current view; selecting a reference motion vector from the filtered motion vector field by using the overall parallax vector; selecting a searching center of motion estimation by using the reference motion vector and the spatial motion vector of adjacent estimated blocks; selecting the searching range of the motion estimation by using the deviation degree of the searching center and the reference motion vector; and carrying out the final motion searching in the searching range, selecting the final motion vector of the current block, and finishing the selection of the final motion vectors of all blocks by using the same method and finishing the motion estimation of the multi-view video coding. The method is suitable for the motion estimation of the multi-view video encoding and can effectively reduce the calculation amount ofthe motion estimation and synchronously maintain the coding rate distortion performance.

Description

technical field [0001] The invention relates to the field of digital video signal coding, in particular to a fast motion estimation method for multi-viewpoint video coding. Background technique [0002] Multi-viewpoint video is the video data obtained by shooting the same scene from multiple angles with a group of cameras. It is an important input data for three-dimensional television (3DTV) and free-viewpoint television (FTV). Comparable visual experience. Multiview Video Coding (MVC) is to compress multi-view video to meet the needs of storage and transmission of huge video data from multiple viewpoints. The Joint Video Working Group (Joint Video Team, JVT) is standardizing MVC as an appendix of H.264 / AVC, and released a Multiview Video Coding Verification Model (Joint Multiview Video Model, JMVM). [0003] The inter-frame estimation of MVC is divided into motion estimation and disparity estimation, wherein motion estimation is used to improve the efficiency of time-doma...

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): H04N7/26H04N13/00H04N19/105H04N19/527H04N19/567H04N19/597
Inventor 陈耀武朱威林翔宇周承涛
Owner ZHEJIANG UNIV