Multi-viewpoint video splicing and fusion algorithm based on multiple resolutions

A multi-viewpoint video and fusion algorithm technology, which is applied in the field of multi-viewpoint video splicing and fusion algorithms based on multi-resolution, can solve the problems of not getting splicing and fusion effects, and unsatisfactory algorithm splicing and fusion effects, so as to reduce the quality requirements, complexity reduction, and cost-saving effects

Inactive Publication Date: 2016-06-08
TARIM UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In addition, if the exposure conditions of the two images are far apart, the stitching and fusion effect of the algorithm is not ideal.
For two images with up and down displacement, the expected splicing and fusion effect may not be obtained

Method used

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  • Multi-viewpoint video splicing and fusion algorithm based on multiple resolutions
  • Multi-viewpoint video splicing and fusion algorithm based on multiple resolutions
  • Multi-viewpoint video splicing and fusion algorithm based on multiple resolutions

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Embodiment Construction

[0039] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] Such as figure 1 As shown, a multi-resolution based multi-viewpoint video splicing and fusion algorithm includes the following steps:

[0041] (1) Cylindrical projection of multi-view video images at the same moment

[0042] In multi-view video stitching and fusion, since the multi-view images used in stitching and fusion are taken by cameras at different viewpoint angles, these images are not on the same projection plane. Therefore, if the multi-view video images at the same moment are directly stitched Fusion, there will be severe distortion and deformation.

[0043] In order to reduce the difficulty of splicing and fusion and ensure the visual consistency of the spliced ​​images, the multi-viewpoint video images at the same time must be mapped to a standard projection surface (cylindrical surface). For the mapping process, please refer to the literature S...

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Abstract

The invention discloses a multi-viewpoint video splicing and fusion algorithm based on multiple resolutions. The algorithm comprises steps as follows: step 1, mapping multi-frame video images of different viewpoints at a same moment on a same reference cylindrical surface, wherein the video of each viewpoint comprises video images of multiple moments; step 2, splicing two adjacent video images at the same moment, wherein the video images are obtained after mapping; step 3, balancing the brightness of the overlapping parts after splicing the two adjacent video images at the same moment, thus finishing fusing the multi-viewpoint videos. According to the multi-viewpoint video splicing and fusion algorithm based on multiple resolutions provided by the invention, the splicing and fusion processes are accelerated by reducing the resolutions; the color and gradient information is considered comprehensively; and the multi-viewpoint videos are spliced and fused at a high speed in a high quality.

Description

technical field [0001] The invention relates to the field of multi-viewpoint video splicing and fusion, in particular to a multi-resolution-based multi-viewpoint video splicing and fusion algorithm. Background technique [0002] The virtual reality technology based on multi-viewpoint video image rendering is a very active research topic in the current virtual reality research, and the generation of multi-viewpoint video panorama is one of the important application fields. [0003] The multi-viewpoint video panorama is realized by splicing and fusing multiple video scene images from different viewpoints. At present, common splicing and fusion algorithms include: phase correlation algorithm, feature-independent method and feature-based method, but each algorithm has certain limitations, and generally requires relatively high image quality for splicing and fusion. The splicing and fusion effects of images captured under unrestricted conditions with ordinary digital cameras are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232H04N5/262
CPCH04N5/2624H04N23/951
Inventor 赵辉牛文渊
Owner TARIM UNIV
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