Model-based 3D human shape estimation from silhouettes for virtual fitting

Shunta Saito; Makiko Kouchi; Masaaki Mochimaru; Yoshimitsu Aoki

doi:10.1117/12.2038457

6 March 2014 Model-based 3D human shape estimation from silhouettes for virtual fitting

Shunta Saito, Makiko Kouchi, Masaaki Mochimaru, Yoshimitsu Aoki

Proceedings Volume 9013, Three-Dimensional Image Processing, Measurement (3DIPM), and Applications 2014; 901307 (2014) https://doi.org/10.1117/12.2038457
Event: IS&T/SPIE Electronic Imaging, 2014, San Francisco, California, United States

Abstract

We propose a model-based 3D human shape reconstruction system from two silhouettes. Firstly, we synthesize a deformable body model from 3D human shape database consists of a hundred whole body mesh models. Each mesh model is homologous, so that it has the same topology and same number of vertices among all models. We perform principal component analysis (PCA) on the database and synthesize an Active Shape Model (ASM). ASM allows changing the body type of the model with a few parameters. The pose changing of our model can be achieved by reconstructing the skeleton structures from implanted joints of the model. By applying pose changing after body type deformation, our model can represents various body types and any pose. We apply the model to the problem of 3D human shape reconstruction from front and side silhouette. Our approach is simply comparing the contours between the model's and input silhouettes', we then use only torso part contour of the model to reconstruct whole shape. We optimize the model parameters by minimizing the difference between corresponding silhouettes by using a stochastic, derivative-free non-linear optimization method, CMA-ES.

Citation Download Citation

Shunta Saito, Makiko Kouchi, Masaaki Mochimaru, and Yoshimitsu Aoki "Model-based 3D human shape estimation from silhouettes for virtual fitting", Proc. SPIE 9013, Three-Dimensional Image Processing, Measurement (3DIPM), and Applications 2014, 901307 (6 March 2014); https://doi.org/10.1117/12.2038457

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