Three-dimensional image region contour generation method based on GPU parallel acceleration

A stereoscopic image and image technology, applied in the field of graphics and image processing, can solve the problems of low execution efficiency and achieve the effect of improving parallelism and computing efficiency

Active Publication Date: 2019-03-19
WENZHOU UNIVERSITY
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However, the existing stereoscopic image area contour generation methods are all based on the

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  • Three-dimensional image region contour generation method based on GPU parallel acceleration
  • Three-dimensional image region contour generation method based on GPU parallel acceleration
  • Three-dimensional image region contour generation method based on GPU parallel acceleration

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[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] like figure 1 As shown, in an embodiment of the present invention, a proposed method for generating a stereoscopic image area outline based on GPU parallel acceleration, the method includes:

[0020] Step S101, given the left-view image S, right-view image T, and area contour pixel set C_S in the left-view image S of a given stereoscopic image; the area outline in S is a closed loop composed of the area outline pixel set C_S.

[0021] The region contour pixel set in the right view image T of the stereo image V matched with the region contour pixel set C_S in the left view image S of the st...

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Abstract

The embodiment of the invention discloses a three-dimensional image region contour generation method based on GPU parallel acceleration. The method comprises the steps that region contour pixel sets in a left view image, a right view image and a left view image are given; obtaining robust matching feature pixel set pairs according to a GPU accelerated scale invariant feature conversion and randompomelo sample consistency inspection method; performing edge line uniform sampling to obtain an edge sampling pixel set in the left view image; obtaining a triangularized pixel set in the left view image through additional random sampling; according to a Delaunay triangularization method accelerated by the GPU, calculating a planar triangular mesh of the left view image; obtaining a triangularizedpixel set in the right view image by using a GPU accelerated conjugate gradient method; and calculating an area contour pixel set in the right view image, wherein a closed loop line formed by the area contour pixel set is an area contour line result in the right view image. By implementing the method and the device, the parallelism of regional contour line generation can be effectively improved,and the calculation efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of graphics and image processing, and in particular relates to a method for generating a contour of a stereoscopic image area based on GPU parallel acceleration, which is used to solve the problem of the consistency of the contours of the area in the left and right views of the existing stereoscopic image. Background technique [0002] When people observe the surrounding three-dimensional scene, due to the different positions of the left and right eyes, the two eyes respectively observe two left and right view images with certain horizontal parallax. The human brain can perceive a three-dimensional scene with a sense of depth based on these two images. The combination of these two left and right view images with horizontal parallax is called a stereoscopic image, which has a three-dimensional stereoscopic visual experience that cannot be conveyed by a traditional single image, and has extensive and important...

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Application Information

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IPC IPC(8): G06T7/12G06T7/13G06T7/30
CPCG06T7/12G06T7/13G06T7/30G06T2207/10012
Inventor 黄辉赵汉理吴承文
Owner WENZHOU UNIVERSITY
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