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An image segmentation method and a system

An image segmentation and original image technology, applied in the field of image processing, can solve the problems of slow segmentation, unable to automatically select foreground and background, large number of pixels, etc., to reduce pixels, shorten calculation time, and ensure the effect of segmentation effect.

Active Publication Date: 2014-03-12
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] First of all, the current segmentation method calculates a large number of pixels, and its segmentation speed is slow
[0011] In addition, the current segmentation method still has the problem that the foreground and background cannot be automatically selected, and manual intervention is required

Method used

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  • An image segmentation method and a system
  • An image segmentation method and a system

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Embodiment Construction

[0062] In order to make the above objects, features and advantages of the present application more obvious and comprehensible, the present application will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0063] refer to figure 1 , which shows a schematic flowchart of Embodiment 1 of an image segmentation method of the present application, which may specifically include:

[0064] Step 60, delineate a first initial foreground area and an initial background area according to the original image;

[0065] Delineate a first initial foreground area and an initial background area in the original image.

[0066] For example, for the width w and height h of the original image, take the wide side of the adjacent two sides of the original image as the x-axis and the high side as the y-axis, select the starting point w / 20 on the x-axis, the end point 19w / 20, and the y-axis Select the starting point h / 20 and the end...

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Abstract

The application provides an image segmentation method and a system, and relates to the field of image processing. The method comprises the following steps: according to an original image, a first initial prospect area and an initial background area are delimited; down-sampling is carried out on the original image to obtain a first image, and pixels, which belong to the first initial prospect area, of the first image are delimited as an initial prospect area; pixels in the initial background area are utilized to establish an initial background mixed Gauss model, and the pixels in the initial prospect area are utilized to establish an initial prospect mixed Gauss model; the image is input into an image cutting process, and a new prospect area and a new background area are delimited; the pixels in the new prospect area are utilized to optimize parameters of the prospect mixed Gauss model, and pixels in the new background area are utilized to optimize parameters the background mixed Gauss model until that the image cutting process converges. According to the invention, a processing time of a cutting algorithm can be raised.

Description

technical field [0001] The present application relates to the field of image processing, in particular to an image segmentation method and system. Background technique [0002] Image segmentation is one of the key technologies in digital image processing. The task of image segmentation is to divide the input image into some independent regions, so that the same region has the same attributes, and different regions have different attributes. Image segmentation is the basis of further image recognition, analysis and understanding, and has been widely valued in both theoretical research and practical application. For the problem of image segmentation, people have proposed many methods, but in view of the characteristics of various types of images, large amount of data, and many changes, so far there is no image segmentation method that is suitable for all situations. In addition, the quality of the segmentation results It also needs to be evaluated according to specific occas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
Inventor 邓宇张涛
Owner ALIBABA GRP HLDG LTD
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