Human body neck circumference arc length obtaining method based on point-line-surface

An acquisition method and technology of the human body, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as lack of accuracy of collar length, taking into account the position information of side neck points, and complicated inversion

Pending Publication Date: 2021-03-30
浙江蓝天制衣有限公司
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  • Abstract
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  • Application Information

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Problems solved by technology

But spline fitting involves matrix inversion, which makes the inversion more complicated as the number of fitting points increases
However, CN 106327536 A discloses a measurement method based on point clouds of c...

Method used

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  • Human body neck circumference arc length obtaining method based on point-line-surface
  • Human body neck circumference arc length obtaining method based on point-line-surface
  • Human body neck circumference arc length obtaining method based on point-line-surface

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Experimental program
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Embodiment Construction

[0036] Such as Figure 1 to Figure 6 As shown, a method for obtaining the arc length of a human body collar based on point-line-surface is characterized in that it comprises the following steps:

[0037] 1. Neck point cloud data acquisition

[0038] First through the 3D body scanner [TC] 2 Obtain human point cloud data; preprocess the point cloud data. The preprocessing process includes point cloud denoising, smoothing, point cloud supplementation, point cloud deletion and minimum circumscribed area processing, to obtain smooth and smooth human body point cloud data;

[0039] The preprocessing of point cloud data mainly includes corresponding processing such as point cloud deletion, denoising and smoothing according to the order of point cloud processing. The point cloud preprocessing is mainly due to the scanning equipment, testers and other reasons in the process of 3D scanning, resulting in more or less missing point clouds and the existence of jagged scan lines in the ex...

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PUM

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Abstract

The invention discloses a human body neck circumference arc length obtaining method based on a point-line-surface, and the method comprises the following steps: 1) obtaining three-dimensional human body point cloud data, and obtaining a human body coronal plane and a human body sagittal plane in a three-dimensional space; and 2) confirming a boundary point: determining feature points of the neck circumference arc passing through the surface of the human body based on the point cloud data, and constructing a neck boundary triangle to obtain a front cervical vertebra point, a side cervical vertebra point and a rear seventh cervical vertebra point of the human body; and 3) obtaining a boundary line: drawing a human body neck circumference arc boundary line and an auxiliary line on the three-dimensional point cloud through the spatial position information of the point cloud coordinates; and 4) acquiring the length of the neck circumference arc, namely performing infinite differential on the section curve by inserting the feature points to obtain the corresponding length of the neck circumference arc. According to the neck circumference arc length obtaining method based on the point-line-surface infinite differential, the lines and the surfaces, a basis is provided for determining the collar circumference arc length in collar sample plate manufacturing, and therefore the garment collar sample plate with the high fitting degree with the neck of the human body is obtained.

Description

technical field [0001] The invention belongs to the field of clothing customization, and in particular relates to a point-line-plane-based method for obtaining the length of a human collar circumference arc. Background technique [0002] The collar is a relatively conspicuous position in clothing, which is both decorative and practical. And its decoration and practicality are based on human body data. In today's clothing customization field, personalization and high comfort have become the development trend of clothing. Since the collar model involves the length of the collar arc, the accuracy of obtaining the collar arc greatly affects the connection between the body and the collar, and directly affects the wearing comfort of the collar. Different from the need to measure data in the same cross-section such as chest circumference, waist circumference, hip circumference, etc. in the jacket model, FNP, SNP, and BNP exist in different cross-sections in the neckline of the hum...

Claims

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Application Information

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IPC IPC(8): G06T17/20
CPCG06T17/20
Inventor 郑志恩
Owner 浙江蓝天制衣有限公司
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