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Neck line measuring method based on sectional point clouds

A measurement method and sectioning technology, applied in image data processing, instruments, calculations, etc., can solve problems such as measured value errors, and achieve good repeatability, fast and accurate measurement effects

Active Publication Date: 2017-01-11
SHANGHAI UNIV OF ENG SCI
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AI Technical Summary

Problems solved by technology

Donghua University, Chinese Academy of Sciences, Chongqing University, Zhejiang University, etc. have carried out different researches on the algorithm of finding human body feature points because of other research needs. They are basically based on the 3D reconstructed human body model, and there are large errors in the measured values.

Method used

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  • Neck line measuring method based on sectional point clouds
  • Neck line measuring method based on sectional point clouds
  • Neck line measuring method based on sectional point clouds

Examples

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Embodiment Construction

[0040] The specific embodiments of the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0041] figure 1 It is a flow chart of the present invention, as shown in the figure, a method for measuring collar circumference based on a section point cloud, comprising the following steps:

[0042] 1. Basic positioning of the reference collar section:

[0043] Step Ⅰ: collect the human body’s three-dimensional RGB-D format point cloud set according to the somatosensory acquisition equipment, and project the point cloud set of the upper body to the YOZ surface, as shown in figure 2 shown;

[0044] Step Ⅱ, on the YOZ plane, search for the maximum Y point position Y max , minimum Y point position Y min ;

[0045]Step Ⅲ, divide the plane point cloud set into N slice positions along the Y direction, and for each slice point y k ,k∈[1,N] position, search for the maximum value and minimum value of Z respectively, and get two curves z m...

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Abstract

The invention relates to the field of garment customization, and discloses a neck line measuring method based on sectional point clouds. The method comprises: step 1, acquiring human three-dimensional point cloud sets of an RGB-D format by body feeling acquisition equipment, projecting the point cloud set of the upper body to a YOZ plane, determining a rear neck point P and a front neck point Q of a neck line, and then obtaining a reference neck line section PQ; step 2, smoothly filtering the point cloud set having a certain distance threshold away from the reference neck line section PQ to remove noise points; step 3, calculating the plane filtered point cloud set by using a polar coordinate statistics method to obtain a surrounding degree value L of the final neck line; and step 4, searching the surrounding degree value L by using a regional minimum search method to obtain a surrounding degree value Lobj of the optimal neck line. The method is convenient to operate and easy to realize, can realize quick and accurate measurement, and has good repeatability.

Description

technical field [0001] The invention relates to the field of clothing customization, in particular to a neck measurement method based on point clouds of cut planes. Background technique [0002] In the field of clothing and clothing, the current anthropometric measurement methods are mainly divided into manual and non-contact methods. The manual method refers to the use of measuring tools such as tape measure to measure the parameters of various parts of the human body according to certain measurement rules, which is widely used. A method, the method is simple to operate and simple tools, but the measurement time is long, the efficiency is low, and there will be embarrassing physical contact between the two sides of the measurement. Non-contact measurement refers to the use of optical scanning and camera imaging to obtain the data of the measured human body. It has the advantages of high speed and high degree of automation, but the cost of measurement equipment is high, and ...

Claims

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Application Information

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IPC IPC(8): G06T7/62G06T7/41G06T5/00G06T3/00
CPCG06T2207/10028G06T3/06G06T5/70
Inventor 袁蓉徐增波周诚
Owner SHANGHAI UNIV OF ENG SCI
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