Digital human serial section image segmentation method based on geometric active contour target tracking

A technology of geometric active contour and target tracking, which is applied in the field of digital human continuous slice image segmentation, can solve the problems of poor robustness, slow speed, and low degree of automation, and achieve the effect of strong adaptability, good continuity, and high degree of automation

Inactive Publication Date: 2010-02-03
NANJING UNIV OF SCI & TECH
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Problems solved by technology

However, the current segmentation methods have some defects, such as slow speed, poor robustness, and low degree of automation, so the current digital h

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  • Digital human serial section image segmentation method based on geometric active contour target tracking
  • Digital human serial section image segmentation method based on geometric active contour target tracking
  • Digital human serial section image segmentation method based on geometric active contour target tracking

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Embodiment Construction

[0023] Attached below picture The present invention is described in further detail.

[0024] combine figure 1 , the present invention is based on geometric active contour target tracking digital human continuous slice picture Like the segmentation method, including the following steps:

[0025] 1.1 Input the first layer of digital human continuous slices containing the digital human tissue target to be segmented picture like figure 2 brainstem sequence shown picture layer 1 slice of image picture picture, picture The tissue like the middle part is the brainstem;

[0026] 1.2 Using the smart scissors to initialize the continuous slices of the digital human input in step 1.1 picture The target contour of the digital human tissue to be segmented in the image, the reference point is manually given on the target contour, and the initial target contour is automatically generated by the intelligent scissors; the intelligent scissors is a human-computer interactive semi-automa...

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Abstract

The invention discloses a digital human serial section image segmentation method based on geometric active contour target tracking, comprising the following steps: 1) inputting a first layer digital human serial section image which includes a target to be segmented; 2) initializing the target contour by intelligent scissors; 3) generating a target contour matching score image; 4) smoothening the target contour matching score image generated in step 3); 5) using a self-adopting geometric active contour model tracking to obtain the target contour of current layer; and 6) storing the target contour segmentation result of current layer, simultaneously taking the result as an initial target contour of next layer and returning to step 3) to continue the target tracking to obtain subsequent target contour. The digital human serial section image segmentation method can accurately and robustly segment the target contour of the digital human serial section image and simultaneously has the advantages of high automation level and processing of topology change of the target contour.

Description

technical field [0001] The invention belongs to picture fields like processing and analysis, especially medical sequences picture In the field of image analysis, a sequential slice of digital human based on geometric active contour object tracking is presented picture Like the split method. Background technique [0002] Digital virtual human research is a cutting-edge research field where medicine and information science intersect. The first stage of digital virtual human visual human body is to use tomography and continuous slices of human body to obtain human anatomical structure data, and then reconstruct three-dimensional in the computer Model. in the whole process, picture Segmentation is a very important key issue, such as picture 3D visualization of images, picture like content analysis, picture The solution to problems like the measurement of the picture like segmentation results. With the improvement of slicing processing precision, "how to improve human bo...

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Application Information

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IPC IPC(8): G06T5/00G06T7/60G06T7/149
Inventor 陈强夏德深孙权森
Owner NANJING UNIV OF SCI & TECH
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