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Three-dimensional breast volume measurement method on basis of mesh projection process

A technology of grid projection and volume measurement, applied in sewing tools and other directions, can solve the problems of high implementation difficulty, poor portability, inaccurate numerical values, etc., and achieve the effect of improving measurement efficiency, efficient collection, and avoiding errors

Inactive Publication Date: 2013-11-20
DONGHUA UNIV
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AI Technical Summary

Problems solved by technology

The general algorithm has the disadvantages of large scale, high difficulty in implementation, poor portability, long debugging cycle, low efficiency and inaccurate values.

Method used

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  • Three-dimensional breast volume measurement method on basis of mesh projection process
  • Three-dimensional breast volume measurement method on basis of mesh projection process

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Embodiment Construction

[0030] In order to make the present invention more comprehensible, preferred embodiments are described in detail below with accompanying drawings.

[0031] Such as figure 1 As shown, the present invention provides a kind of three-dimensional breast volume measurement method based on grid projection method, and its steps are:

[0032] Step 1. Obtain 3D point cloud data of the whole body of the human body through 3D human body scanning, and each data already includes the surface information of the triangular mesh. The format of the 3D point cloud data obtained in the experiment is wrl(#VRMLv2.0utf8), which is the original data (including noise). The point cloud data is divided into two parts, one part is 4 marked points, and the other part is ordinary scanning points. [TC] 2The data characteristics of the surface file generated by scanning are: the point information is a real number, the guide surface information, and the node serial numbers are listed in clockwise order. Thi...

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Abstract

The invention belongs to the technical field of human body ergonomic measurement, and particularly discloses a three-dimensional breast volume measurement method on the basis of a mesh projection process. The three-dimensional breast volume measurement method includes firstly, initializing raw data; secondly, starting breadth-first traversal from the highest points of the chest of a human body and laying the data; thirdly, searching four mark points (which are defined and marked before three-dimensional scanning) of the boundaries of the breasts of the human body in point cloud data; fourthly, closing to-be-measured curved surfaces in a plane interception mode; fifthly, computing the volumes of intercepted chest areas by the mesh projection process. The three-dimensional breast volume measurement method has the advantages that sensitive steps in a contact measurement procedure are omitted, and the three-dimensional breast volume measurement method is humanized; problems of low visualized operation speed and high randomness are solved, and the three-dimensional breast volume measurement method is accurate and is high in efficiency as compared with a universal algorithm; technical problems in matching the sizes of cups with the volumes of the breasts of a human body in the clothes field are solved, and the three-dimensional breast volume measurement method can be applied to customizing bras via networks, also can be applied to acquiring basic breast volume samples and has a certain reference significance in breast surgery in the medical field.

Description

technical field [0001] The invention relates to a breast volume measurement method based on a grid projection method in a three-dimensional environment, and belongs to the technical field of ergonomics measurement. Background technique [0002] A bra is a garment that requires a high degree of fit. A well-fitting bra can properly support the breasts, slow down the sagging caused by gravity, and maintain the beauty of the body. A well-fitting bra can also reduce the displacement of the breast relative to the human body during exercise, preventing breast discomfort or even strain caused by this relative displacement. The fit of the cup portion is one of the most critical factors affecting the fit of a bra. The current bra sizing system uses the difference between bust and underbust to define cup size, but more and more research results show that cup fit is more correlated with breast volume. It is more scientific to regard breast volume as a standard for measuring breasts a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A41H1/00
Inventor 陈晓娜江东王建萍
Owner DONGHUA UNIV
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