A Personalized Foot Modeling and Insole Customization Method Based on Computer Vision

Abstract

The invention discloses a customized foot modeling and shoe pad customization method on the basis of computer vision. The method comprises following steps: foot video data of a subject is obtained; characteristic points of adjacent two frames of images in the foot video data are extracted; the characteristic points of adjacent video frames are tracked and matched by use of an optical flow method; unreliable tracking results are rejected by use of a zero-based normalized cross correlation(ZNCC) verification; a characteristic point path is constructed on the basis of the tracking and matching results; key frames of the foot video data are selected; three-dimensional reconstruction of the characteristic point path of the video key frame queue is carried out on the basis of the characteristic point path and by use of a SFM method to generate a foot grid model. By use of the method, technical problems of difficult data acquisition in shoe pad customization and high cost in the prior art are solved.

Description

technical field [0001] The invention belongs to the technical field of computer vision and graphic image processing, and more specifically relates to a computer vision-based personalized foot modeling and insole customization method. Background technique [0002] In the field of footwear, custom insoles have received more and more attention, and the design of custom insoles has become an extremely important part of footwear product development. Customized insoles can not only realize partial pressure on the soles of the feet, improve the performance of sports such as running, but also have a good therapeutic effect on foot diseases such as diabetic feet and arch collapse. [0003] The traditional custom insole technology is to obtain the foot contour through plaster bandage and foam qualitatively, and obtain the basic shape of the custom insole by fitting the foot curve and manual molding. But this customization process is quite complicated and not precise enough to be repl...

AI Technical Summary

Problems solved by technology

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a computer vision-based personalized foot modeling and insole customization method, the purpose of which is to solve the problem of difficult data collection and high cost in existing customized insoles. Technical problem, using only foot video data as input data, using the structure from motion (Structure FromMotion, referred to as SFM) method to reconstruct the characteristics of 3D scenes and camera parameters, to design personalized custom insoles

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