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Three-dimensional image segmentation method and system

A technology of three-dimensional images and two-dimensional images, which is applied in image analysis, image data processing, instruments, etc., can solve the problems of poor edge segmentation of three-dimensional images and achieve the effect of rapid positioning

Inactive Publication Date: 2015-04-29
深圳市太赫兹科技有限公司
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Problems solved by technology

[0003] The technical problem solved by the present invention is: to construct a segmentation method of a three-dimensional image, to overcome the technical problem of poor edge segmentation effect of the prior art for the three-dimensional image

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  • Three-dimensional image segmentation method and system

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0020] The specific embodiment of the present invention is: provide a kind of segmentation method of three-dimensional image, the steps are as follows:

[0021] The discontinuous detection method based on the Gaussian-Laplacian operator detects the edge of the image, and the Gaussian-Laplacian operator for the edge detection of the two-dimensional image is as follows:

[0022] For a continuous function f(x, y), its Laplacian operator is:

[0023] ▿ 2 f = ∂ 2 f ∂ x 2 + ∂ 2 f ∂ y ...

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Abstract

The invention relates to a three-dimensional image segmentation method and system. An improved Laplacian-of-Gaussian operator is put forward according to the characteristic of different smoothness of a horizontal plane and a vertical plane during three-dimensional imaging, different from the characteristic of isotropy of traditional Laplacian-of-Gaussian operators, the improved operator has different detection scales for edges on the horizontal plane and the vertical plane, a human body background and hidden hazardous articles in a three-dimensional image can be automatically segmented by the operator, and the hazardous articles can be positioned accurately and quickly.

Description

technical field [0001] The invention relates to an image segmentation method and system, in particular to a three-dimensional image edge detection and image segmentation method and system. Background technique [0002] Edge is a basic feature of an image. Identifying edge information in an image is one of the most effective means of identifying objects in an image. Image segmentation refers to the technology and process of dividing an image into regions with various characteristics and extracting objects of interest. It is a key step from image processing to image analysis. The existing image segmentation methods are mainly divided into the following categories: threshold-based segmentation methods, region-based segmentation methods, edge-based segmentation methods, and segmentation methods based on specific theories. The detection method is universal for image edge detection. The traditional Gauss-Laplacian edge detection is mainly for two-dimensional images, but it cannot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T17/00
CPCG06T7/155G06T7/12
Inventor 刘艺青
Owner 深圳市太赫兹科技有限公司
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