3D measurement of feature cross-sections of foot while walking

Abstract

Measurement of human body is useful for ergonomic design in manufacturing. We aim to accurately measure the shapes of human feet for the design of shoes, for which measuring the dynamic shape of the foot in motion is important because the foot deforms while walking or running. In this paper, we propose a method for measuring the anatomical feature cross-sections of the foot while walking. The dynamic shape of feature cross-section has never been measured, though those features are very basic and popular. Our proposed method is based on the multi-view stereo method. The target cross-sections are painted in individual colors (red, green, yellow and blue). Several nonlinear conditions are introduced in the process to find the consistent correspondence in all images. We show that the proposed method for dynamic measurement achieved the desired accuracy similar to existing 3D static foot scanners.