Intelligent Three-Dimensional Shape Recovery System for Shoes

In order to promote the development of making shoes, the intelligent 3D shape measurement system is researched. Shape from stereo technique is used to collect the 3D shape of human feet and shoes. Two cameras are used to get absolute stereo coordinate. In order to improve the precision of 3D measurement, a novel grating matching method was designed in this paper, which can ensure 100% matching accuracy. On the beginning of the measurement, no gratings projected on the object and the background is captured by the two CCD cameras. Later gratings include single grating and multi gratings will be projected to the object in sequence. All the images include gratings will make a subtraction with the background image, so as to easily and clearly extract the grating information and continue precision matching work in 3D shape reconstruction. From a lot of experiments, the proposed grating matching method is proved that it is a high precision, intelligent, low cost, and easy operation stereo matching method for shoes. And it can be extended to a lot of 3D measurement system.