Jie Feng, Yan Wang, Shih-Fu Chang. 3D Shape Retrieval Using Single Depth Image from Low-cost Sensors. In Applications of Computer Vision (WACV), 2016 IEEE Winter Conference on, 2016.
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Content-based 3D shape retrieval is an important problem in computer vision. Traditional retrieval interfaces require a 2D sketch or a manually designed 3D model as the query, which is difficult to specify and thus not practical in real applications. With the recent advance in low-cost 3D sensors such as Microsoft Kinect and Intel Realsense, capturing depth images that carry 3D information is fairly simple, making shape retrieval more practical and user-friendly. In this paper, we study the problem of cross-domain 3D shape retrieval using a single depth image from low-cost sensors as the query to search for similar human designed CAD models. We propose a novel method using an ensemble of autoencoders in which each autoencoder is trained to learn a compressed representation of depth views synthesized from each database object. By viewing each autoencoder as a probabilistic model, a likelihood score can be derived as a similarity measure. A domain adaptation layer is built on top of autoencoder outputs to explicitly address the cross-domain issue (between noisy sensory data and clean 3D models) by incorporating training data of sensor depth images and their category labels in a weakly supervised learning formulation. Experiments using real-world depth images and a large-scale CAD dataset demonstrate the effectiveness of our approach, which offers significant improvements over state-of-the-art 3D shape retrieval methods
Jie Feng 
Yan Wang
Yong Wang
Shih-Fu Chang
@InProceedings{feng20163d,
Author = {Feng, Jie and Wang, Yan and Chang, Shih-Fu},
Title = {3D Shape Retrieval Using Single Depth Image from Low-cost Sensors},
BookTitle = {Applications of Computer Vision (WACV), 2016 IEEE Winter Conference on},
Year = {2016}
}
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