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A Fast Disparity Estimation Method for Multi-View Image Coding

A multi-view image and parallax estimation technology, which is applied in image communication, digital video signal modification, electrical components, etc. Effect

Active Publication Date: 2019-06-14
湖南优象科技有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The traditional disparity vector estimation method for encoding is based on block matching, which has the advantages of being simple and practical, and easy to implement in hardware. However, from the actual effect, the disparity estimation accuracy of this method is not high, and many mismatches will be generated.

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  • A Fast Disparity Estimation Method for Multi-View Image Coding
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  • A Fast Disparity Estimation Method for Multi-View Image Coding

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] refer to figure 1 , the present invention is a kind of fast disparity estimation method for multi-viewpoint image coding, comprises the following steps:

[0044] S1. Record the images taken from two different viewpoints at the same moment and the same scene as F 1 (x,y) and F 2 (x, y), perform block-block matching on two multi-view images, each image block will get a motion vector, and finally get a set of motion vectors.

[0045] S1.1 Record the same moment and the same scene from two different viewpoints as F 1 (x,y) and F 2 (x, y), the size of both images is Wd×Hd, and the image F is first paired with a fixed size of 15×15 1 (x,y) is divided into blocks, and the total number is The image block of , denoted as {k n (x,...

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Abstract

The present invention proposes a fast parallax estimation method for multi-viewpoint image coding. First, quickly calculate the matching results of all image blocks through a two-step block matching method to obtain a motion vector set, and then comprehensively consider each image block itself and the information of the surrounding image blocks, the motion vector set is judged by a method based on feature point detection, and the distortion points are excluded. The method proposed by the invention can effectively eliminate mismatching while quickly performing block matching, and greatly improves the accuracy of parallax estimation. The method proposed by the invention is simple and practical, has small algorithm complexity, can process various multi-viewpoint images in real time, and has good practical value.

Description

technical field [0001] The invention belongs to the technical field of digital image processing and computer vision, in particular to a fast parallax estimation method for multi-viewpoint image coding. Background technique [0002] Multi-viewpoint video is a new type of video with stereoscopic and interactive operation functions. It is an effective 3D video representation method to obtain video signals from different viewpoints by synchronously shooting the same scene from different angles through multiple cameras. Reproduce scenes more vividly, providing stereoscopic and interactive functions. Multi-viewpoint video can be widely used in various emerging multimedia services such as arbitrary viewpoint video, 3D stereoscopic TV, immersive video conferencing, and video surveillance systems. [0003] Compared with single-view video, the data volume of multi-view video increases linearly with the number of cameras. The huge amount of data has become a bottleneck restricting it...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/137H04N19/154H04N19/17H04N19/51
CPCH04N19/137H04N19/154H04N19/17H04N19/51
Inventor 向北海
Owner 湖南优象科技有限公司