Measuring method for foot three-dimensional foot-type information and three-dimensional reconstruction model by means of RGB-D camera

A 3D reconstruction and 3D model technology, applied in 3D modeling, image data processing, instruments, etc., can solve the problem of high cost and achieve the effects of easy operation, good real-time acquisition and cost reduction

Active Publication Date: 2014-08-06
FUZHOU UNIV
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But the cost is high, and there is a contradictory re

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  • Measuring method for foot three-dimensional foot-type information and three-dimensional reconstruction model by means of RGB-D camera
  • Measuring method for foot three-dimensional foot-type information and three-dimensional reconstruction model by means of RGB-D camera
  • Measuring method for foot three-dimensional foot-type information and three-dimensional reconstruction model by means of RGB-D camera

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[0038] The present invention utilizes RGB-D camera to measure foot three-dimensional foot shape information and the method for three-dimensional reconstruction model, comprises the following steps:

[0039] (1) Using the RGB-D camera speckle ranging principle to measure the three-dimensional surface of the foot shape: the RGB-D camera infrared emitter emits laser light, which is evenly projected onto the foot surface through the grating in front of the infrared emitter lens, Rough objects on the surface of the foot are reflected to form random speckles, and then each speckle in the space is recorded by an infrared camera, and the information of the depth image of the foot is obtained through calculation;

[0040] (2) Without any marking points, the hand-held RGB-D camera freely scans the foot-shaped surface, and on the basis of real-time acquisition of depth data, combined with X and Y coordinate information, the global 3D model of the foot-shaped surface is reconstructed; at t...

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Abstract

The invention relates to a measuring method for rapidly obtaining foot three-dimensional foot-type information and a three-dimensional reconstruction model by means of an RGB-D camera. The method comprises the steps that the RGB-D camera is applied to rapid obtaining of three-dimensional information of the foot surface and fine reconstruction of the foot surface model, and under the situation that no mark points are used, three-dimensional coordinates of the foot curved surface are rapidly collected; an RGB-D camera is utilized for scanning the foot curved surface, depth information is obtained in real time, depth map data of different time sequences are fused, the overall model of the foot curved surface is reconstructed, and foot-type characteristic parameters are extracted and measured according to actual requirements. The measuring method is high in measuring efficiency, good in real-time performance, easy to implement, low in measuring cost, easy to operate and good in using effect.

Description

technical field [0001] The invention relates to the technical field of three-dimensional curved surface measurement, in particular to a method for measuring three-dimensional foot shape information of a foot and a three-dimensional reconstruction model by using an RGB-D camera. Background technique [0002] At present, shoe shapes and sizes are designed based on a large number of statistics, analysis, and generalized standard shoe sizes, which makes a considerable number of people with normal feet, the shoe sizes they should wear are in the middle of the standard shoe sizes Value, but can only wear approximate shoe size. The vast majority of people with deformed feet simply do not have a suitable shoe size. According to survey statistics, the proportion of deformed feet in my country accounts for about 15%, among which acquired deformities are in the majority, mostly caused by unsuitable shoes. Therefore, designing more suitable shoes according to different foot types, and...

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Application Information

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IPC IPC(8): G06T17/00
Inventor 何炳蔚雷阿唐沈恒华赵强
Owner FUZHOU UNIV
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