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Foreground mask extraction method and device, computer equipment and storage medium

An extraction method and mask technology, applied in the field of image processing, can solve problems such as low precision, low optimization target dimension, and inability to extract foreground masks from high-definition images, and achieve the effect of improving accuracy and accurate mask extraction.

Active Publication Date: 2020-01-21
GUIZHOU MINZU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a foreground mask extraction method, device, computer equipment, and storage medium to solve the problem that the prior art cannot perform foreground mask extraction on high-definition images, and the optimization target has low dimensions and low precision.

Method used

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  • Foreground mask extraction method and device, computer equipment and storage medium
  • Foreground mask extraction method and device, computer equipment and storage medium
  • Foreground mask extraction method and device, computer equipment and storage medium

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Embodiment Construction

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0028] Such as figure 1 As shown, a foreground mask extraction method includes the following steps:

[0029] S10: Obtain a tripartite map corresponding to the original high-definition image, where the tripartite map includes unknown regions.

[0030] S20: Obtain a target to be optimized based on the pixels in the unknown area, where the target to be optimized includes at least one optimization element.

[0031] Specifically, after the unknown region is obtained according to the tripartite graph, the pixels in the unknown region are clustered according to the size of the pixel value, and the pixels belonging to the same pixel value are clustered into one category, and then one pixel value is selected from each categ...

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Abstract

The invention discloses a foreground mask extraction method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a tripartite graph corresponding toan original high-definition image, wherein the tripartite graph comprises an unknown region; based on the pixels in the unknown area, acquiring a to-be-optimized target, wherein the to-be-optimized target comprises at least one optimization element; processing each optimization element in the to-be-optimized target by adopting a group competition optimization algorithm to obtain a target optimalsolution group of the unknown region; obtaining a foreground mask value of the unknown region based on the target optimal solution group; and performing mask extraction on the original high-definitionimage based on the foreground mask value, thereby effectively improving the accuracy of the foreground mask value of the unknown region, and enabling subsequent mask extraction on the high-definitionimage according to the foreground mask value to be more accurate.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a foreground mask extraction method, device, computer equipment and storage medium. Background technique [0002] Foreground mask extraction is an important step in digital image processing such as image synthesis and automatic foreground extraction. Existing foreground mask extraction methods, such as the sampling-free foreground mask extraction algorithm based on fuzzy evaluation and collaborative optimization, only extract foreground masks from standard-definition images, but cannot extract high-definition images. In addition, the dimensionality of the optimization target of this method is low, and the precision is not high. Contents of the invention [0003] Embodiments of the present invention provide a foreground mask extraction method, device, computer equipment, and storage medium to solve the problem that the prior art cannot perform foreground mask e...

Claims

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Application Information

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IPC IPC(8): G06T7/194G06K9/62G06N3/00
CPCG06T7/194G06N3/006G06T2207/20081G06F18/23G06F18/24
Inventor 冯夫健黄翰王林梁椅辉董志诚梁宝魁夏大文谭棉
Owner GUIZHOU MINZU UNIV