Method of acquiring three-dimensional foot shape by using foot shape video and sensor data acquired by smart phone
A smart phone and data acquisition technology, applied in the field of 3D reconstruction, can solve the problems that the reconstruction results depend on data and training, the error accuracy does not have much advantage, and the workload of data collection and sorting is large.
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[0083] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0084] The present invention provides a method for obtaining three-dimensional foot shape by collecting foot shape video and sensor data through a smart phone, the method comprising the following steps:
[0085] (1) Use the smart phone to rotate around the bare feet to collect foot shape video and sensor data, decompose the video into video frames, and take some frames for preprocessing such as foot shape area segmentation, and at the same time, reference foot shape in the foot shape database Parameters such as the normal vector of the model;
[0086] (2) According to the constraint relationship of multi-view stereo geometry, detect and match the feature points in the video frame, calculate the internal and external parameters of the camera, and restore the 3D point cloud coordinates corresponding to the feature points;
[0087] (3) Add IMU da...
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