The depth estimation of 3D face from single 2D picture based on manifold learning constraints

Xia Li; Yang Yang; Hailiang Xiong; Yunxia Liu

doi:10.1117/12.2302766

10 April 2018 The depth estimation of 3D face from single 2D picture based on manifold learning constraints

Xia Li, Yang Yang, Hailiang Xiong, Yunxia Liu

Proceedings Volume 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017); 106150U (2018) https://doi.org/10.1117/12.2302766
Event: Ninth International Conference on Graphic and Image Processing, 2017, Qingdao, China

Abstract

The estimation of depth is virtual important in 3D face reconstruction. In this paper, we propose a t-SNE based on manifold learning constraints and introduce K-means method to divide the original database into several subset, and the selected optimal subset to reconstruct the 3D face depth information can greatly reduce the computational complexity. Firstly, we carry out the t-SNE operation to reduce the key feature points in each 3D face model from 1×249 to 1×2. Secondly, the K-means method is applied to divide the training 3D database into several subset. Thirdly, the Euclidean distance between the 83 feature points of the image to be estimated and the feature point information before the dimension reduction of each cluster center is calculated. The category of the image to be estimated is judged according to the minimum Euclidean distance. Finally, the method Kong D will be applied only in the optimal subset to estimate the depth value information of 83 feature points of 2D face images. Achieving the final depth estimation results, thus the computational complexity is greatly reduced. Compared with the traditional traversal search estimation method, although the proposed method error rate is reduced by 0.49, the number of searches decreases with the change of the category. In order to validate our approach, we use a public database to mimic the task of estimating the depth of face images from 2D images. The average number of searches decreased by 83.19%.

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Xia Li, Yang Yang, Hailiang Xiong, and Yunxia Liu "The depth estimation of 3D face from single 2D picture based on manifold learning constraints", Proc. SPIE 10615, Ninth International Conference on Graphic and Image Processing (ICGIP 2017), 106150U (10 April 2018); https://doi.org/10.1117/12.2302766

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KEYWORDS

Data modeling

3D modeling

Databases

Image analysis

Dimension reduction

Statistical analysis

RGB color model

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