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Method of measuring body weights through point cloud characteristics

A technology of point cloud and human body, applied in the field of measurement

Active Publication Date: 2016-10-26
SHENZHEN HANWUJI INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is currently no mature technology to process these features more deeply, such as measuring body weight through point clouds, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] By processing the features of the point cloud of the human body, the cross-sectional area S of the point cloud can be obtained d , the height H of the human body in the point cloud model d , where the processing of the cross-sectional area adopts the equidistant horizontal plane cutting point cloud model, and then solves the area of ​​each point cloud cutting plane, and takes the average value to obtain the Sd value; calculate the highest point of the point cloud and the lowest point of the point cloud The vertical distance can be obtained by H d .

[0017] The density ρ of the point cloud model 0 Generally, it is necessary to calculate the basic functional expressions of the height-to-width ratio and mass of ordinary people through experiments. The specific and feasible operation method is to randomly select 1000 people with four combinations of tall, short, fat and thin. Measure their true standard mass m; get ρ 0 *S d *H d = m, determine the aspect ratio H th...

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PUM

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Abstract

The invention provides a method of measuring body weights through point cloud characteristics, comprising the steps of: step 1, obtaining the point cloud information of required characteristics; step 2, integrating body point cloud into a cylinder, and then directly extracting the sectional area Sd and cylinder height Hd of the point cloud cylinder; step 3, calculating the density of a certain point cloud object through a depth-width ratio experiment function, the mean density rho0 of a human body being between muscle density rhomax and fat density rhomin, wherein because the fat density is smaller than the muscle density, a depth-width ratio is employed to determine the size of a target characteristic; if a depth-width ratio of a person is larger, the selected intensity is closer to the muscle density rhomax, and if a depth-width ratio is smaller, the selected intensity is closer to the fat density rhomin; and step 4, outputting the measured weight of a measured object, the body weight= rho0*Sd*Hd. The invention provides a non-contact type weight measuring mode through point cloud.

Description

technical field [0001] The invention relates to the measurement field, in particular to measuring human body weight through point cloud features. Background technique [0002] The current existing technology is to use a 3D camera that can obtain the depth information of the object to collect the point cloud model of the human body. The current technology can directly output the characteristics of the length, width, height and aspect ratio of the point cloud. Although there are already mature technologies for extracting point cloud feature information such as the height, width, and length of objects. However, there is currently no mature technology to process these features more deeply, such as measuring body weight through point clouds. Contents of the invention [0003] In order to solve the problems in the prior art, the present invention provides a method for measuring body weight through point cloud features, [0004] The first step: obtain the point cloud informatio...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/60G01G19/44
CPCG01G19/44G06T7/0002G06T2207/10028G06T2207/30196
Inventor 龚莉杰张猛程忠光
Owner SHENZHEN HANWUJI INTELLIGENT TECH CO LTD