31 December 2008 Measurement system for 3-D foot coordinates and parameters
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Proceedings Volume 7130, Fourth International Symposium on Precision Mechanical Measurements; 713035 (2008) https://doi.org/10.1117/12.819672
Event: Fourth International Symposium on Precision Mechanical Measurements, 2008, Anhui, China
Abstract
The 3-D foot-shape measurement system based on laser-line-scanning principle and the model of the measurement system were presented. Errors caused by nonlinearity of CCD cameras and caused by installation can be eliminated by using the global calibration method for CCD cameras, which based on nonlinear coordinate mapping function and the optimized method. A local foot coordinate system is defined with the Pternion and the Acropodion extracted from the boundaries of foot projections. The characteristic points can thus be located and foot parameters be extracted automatically by the local foot coordinate system and the related sections. Foot measurements for about 200 participants were conducted and the measurement results for male and female participants were presented. 3-D foot coordinates and parameters measurement makes it possible to realize custom-made shoe-making and shows great prosperity in shoe design, foot orthopaedic treatment, shoe size standardization, and establishment of a feet database for consumers.
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Guozhong Liu, Guozhong Liu, Yunhui Li, Yunhui Li, Boxiong Wang, Boxiong Wang, Hui Shi, Hui Shi, Xiuzhi Luo, Xiuzhi Luo, } "Measurement system for 3-D foot coordinates and parameters", Proc. SPIE 7130, Fourth International Symposium on Precision Mechanical Measurements, 713035 (31 December 2008); doi: 10.1117/12.819672; https://doi.org/10.1117/12.819672
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