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Foot surface three-dimensional information obtaining method based on multiple RGB-D cameras

An RGB-D, three-dimensional information technology, applied in 3D modeling, image data processing, foot or shoe last measurement devices, etc. Effect

Active Publication Date: 2014-11-05
FUZHOU UNIV
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Problems solved by technology

But the cost is high, and there is a contradictory relationship between accuracy, ranging and scanning rate

Method used

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  • Foot surface three-dimensional information obtaining method based on multiple RGB-D cameras
  • Foot surface three-dimensional information obtaining method based on multiple RGB-D cameras

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Embodiment Construction

[0034] , the present invention utilizes RGB-D video camera to obtain foot three-dimensional foot type information and the measurement method of three-dimensional reconstruction model rapidly, comprise the following steps:

[0035] (1) RGB-D camera calibration: According to user needs, select different numbers of RGB-D cameras (at least 3) for spatial arrangement. Calibrate multiple RGB-D cameras to obtain internal parameters, and use one of the RGB-D cameras as a reference to calibrate in pairs to obtain the positional relationship between them.

[0036] Specifically include the following steps:

[0037] (1.1) Choose different numbers of RGB-D cameras to obtain different detailed information. Users can choose different numbers of RGB-D cameras (at least 3) according to their needs, and arrange them spatially according to the RGB-D field of view , so that the combination of information obtained from all viewpoints can fully express the entire foot surface information;

[0038...

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Abstract

The invention relates to a foot surface three-dimensional information obtaining method based on multiple RGB-D cameras. According to the method, an all-dimensional measuring system built by the RGB-D cameras is applied to rapid obtaining of foot surface three-dimensional information and rapid reconstruction of a foot surface model, and complete foot curved surface three-dimensional coordinates can be colleted at a time without help of any gauge points. The RGB-D camera all-dimensional measuring system is used for rapidly obtaining depth information of a foot type curved surface at various view angles, the depth information is converted into three-dimensional point clouds, the three-dimensional point clouds, obtained by different RGB-D cameras, of local foot curved surfaces are registered, the overall model of the foot type curved surface is reconstructed, and characteristic parameters of a measured foot type can be extracted according to actual requirements. The foot surface three-dimensional information obtaining method based on the multiple RGB-D cameras is high in reconstruction speed, high in measuring efficiency, easy to implement, low in measuring cost and good in use effect.

Description

technical field [0001] The invention relates to the technical field of three-dimensional curved surface measurement, in particular to a method for acquiring three-dimensional information of a foot surface based on multiple RGB-D cameras. Background technique [0002] In recent years, many industrial production line systems are changing from large-scale batch production to user-customized, personalized and small-scale production. Rapid design and production technology is indispensable for individualized production systems. In a typical custom-made production system, the customer provides detailed data of the desired product online and then places an order. After a few days, the products ordered by the customer can be produced according to the individual requirements of the customer and mailed to the customer. We apply this thinking to our shoe industry. To create personalized shoes tailored for each customer, the key is to quickly design and produce personalized shoe lasts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A43D1/02G06T17/00
Inventor 何炳蔚雷阿唐沈恒华赵强
Owner FUZHOU UNIV
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