Quick image segmentation method used for computer graph and image processing and based on GPU platform and morphological component analysis

A computer graphics and image processing technology, applied in the field of digital image processing and information, which can solve the problems of low computing efficiency and poor segmentation effect.

Inactive Publication Date: 2014-10-08
詹曙 +1
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Problems solved by technology

[0006] Purpose of the invention: the technical problem to be solved by the present invention is to propose a fast image segmentation method based on the GPU platform and morphological component analysis, which can effectively reduce the calculation time, Significantly improve the decomposition effect

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  • Quick image segmentation method used for computer graph and image processing and based on GPU platform and morphological component analysis
  • Quick image segmentation method used for computer graph and image processing and based on GPU platform and morphological component analysis
  • Quick image segmentation method used for computer graph and image processing and based on GPU platform and morphological component analysis

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Embodiment Construction

[0031] (1) Perform memory allocation optimization and initialization, read the image to be segmented into the CPU memory, and initialize the dictionary matrix;

[0032] According to the resolution of the input image, the CPU and GPU memory are uniformly allocated and initialized, and the image to be segmented is read into the CPU memory, and the dictionary matrix is ​​initialized, and the image texture part dictionary D is initialized using the local cosine transform LDCT t , use the wavelet transform to initialize the image structure part dictionary D n

[0033] (2) transfer the image data and the initial dictionary from the CPU memory to the GPU memory;

[0034] The image data f to be segmented and the initial dictionary D t 、D n Transfer from CPU memory to GPU video memory. The image f contains Gaussian white noise n, and the image can be expressed as f=u+v+n, where u is the structural part of the image, and v is the texture part of the image. .

[0035] (3) Fix the t...

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Abstract

The invention discloses a quick image segmentation method used for computer graph and image processing and based on a GPU platform and morphological component analysis. For a traditional image segmentation technology which is low in operation efficiency and poor in segmentation effect, the quick image segmentation method based on the GPU platform and the morphological component analysis is proposed so that operation time can be reduced effectively and the decomposition effect can be improved remarkably. The method includes the implementation steps that due to the fact that the advantages of GPU parallel operation are fully used, the algorithm of the morphological component analysis is achieved, the image segmentation efficiency is improved greatly, and thus quick image segmentation is achieved.

Description

technical field [0001] The present invention relates to the field of information technology, and further relates to a rapid image segmentation using a Graphics Processing Unit (GPU) through a Morphological Component Analysis (MCA) in the field of digital image processing technology. This technology can be widely used in image segmentation, target detection and recognition and other fields. Background technique [0002] An important issue in image processing and computer vision is to distinguish different features of images. The purpose of image segmentation is to separate components with different features in images. Images can be composed of image structure and image texture. Among them, the image structure part contains The geometric feature information of the image consists of smooth regions and clear edges. The texture part of the image is composed of high-frequency oscillation components and noise of the image. In recent years, image segmentation has become a frontier...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T1/20G06T7/00
Inventor 詹曙方琪
Owner 詹曙
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