Mr. Jialong Wang Profile

Jialong Wang

at Huazhong Univ of Science and Technology

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Proceedings Article | 13 May 2019 Paper

Deep network based 3D hand keypoints prediction from single RGB images

Jialong Wang, Nong Sang

Proceedings Volume 10995, 109950V (2019) https://doi.org/10.1117/12.2522496

KEYWORDS: 3D image processing, Convolution, Deconvolution, 3D modeling, Human-computer interaction, Neural networks, Network architectures

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3D hand keypoints prediction is an important and fundamental task in Human-Computer Interaction. In this paper, we present an approach to predict 3D hand keypoints from single RGB images. Single RGB images are very common in daily life. However, it is challenging to predict 3D hand keypoints using single RGB images, because of depth ambiguities and occlusions. To deal with these challenges, we exploit deep neural networks to predict 3D hand keypoints. So far, there are several methods which predict 3D hand keypoints from single RGB images. Most of them separate the task into three stages. i.e., hand detection, 2D hand keypoints estimation and 3D hand keypoints prediction. We follow the idea and focus on the 2D hand keypoints estimation and 3D hand keypoints prediction. We improve an existing deep-network-based technique and get better results. Specifically, we combine the convolution and deconvolution network to get the pixel-wise estimation of 2D hand keypoints, and propose a new loss function to predict 3D hand keypoints from 2D keypoints. We evaluate our network on several public datasets and get better results than several other methods. Besides, ablation studies demonstrate that our network is valid.

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