Compatibility mesh segmentation based skeleton parameter computation method

A grid segmentation and bone parameter technology, applied in computing, image analysis, image data processing, etc., can solve the problems of high cost, complex computing framework, ignoring the overall 3D characteristics of the bone model, etc., to achieve fast compatibility segmentation and improve efficiency Effect

CN103632371AInactive Publication Date: 2014-03-12HOHAI UNIV CHANGZHOU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-03-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a compatibility mesh segmentation based skeleton parameter computation method. The method includes: firstly, combining specific medical priori knowledge to extract some feature points for skeleton models; secondly, performing medical semantic segmentation on the skeleton models on the basis of the feature points; thirdly, directing similar skeleton models to be subjected to fast compatibility segmentation through a template obtained by segmentation by virtue of Laplacian deformation based non-rigid registration; finally, according to a mesh segmentation result, creating a subregion adjacent map and computing main morphological parameters of skeletons. By the method, a user can perform fast compatibility segmentation on the similar skeleton models similar in structure. Furthermore, compared with a conventional measurement method, the method has the advantages that both precision and efficiency for computing to obtain the skeleton parameters according to the mesh segmentation result are improved, and the method is particularly suitable for parameter measurement of large-batch skeleton models.
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Description

technical field

[0001] The invention belongs to the technical field of computer graphics, in particular to the compatibility segmentation of feature points and template-guided skeletal mesh models and a parameter calculation method based on the segmentation results. Background technique

[0002] In the medical field, accurate bone morphology parameters are of great significance for guiding surgery and prosthesis manufacturing. In particular, the variation range of the shape and size of the femur is the basis and basis for the serialization and standardized design of the prosthesis, which plays an important role in orthopedic operations such as artificial hip replacement and registration and reduction of broken bones.

[0003] Measuring bone parameters is one of the important research contents in medical image processing, and it is also a classic problem. The main reason why bone parameters are difficult to measure is that its geometric properties are very complex and its sh...

Examples

Embodiment Construction

[0047] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0048] Such as figure 1As shown, the present embodiment is the best embodiment of the present invention, a kind of bone parameter calculation method based on compatibility grid segmentation of the present embodiment, its method is: firstly on the basis of feature point extraction to the 3D of human skeleton The mesh model performs semantic segmentation in line with medical understanding; the template obtained from the segmentation guides other bone models of the same type to perform fast compatibility segmentation; finally, the main parameters of the skeleton are calculated according to the mesh segmentation results. For explaining the implementation of this embodiment in detail, its specific steps are as follows:

[0049] (1) Carry out medical s...