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Erschienen in:
2014 | OriginalPaper | Buchkapitel
3D Object Classification Using Deep Belief Networks
verfasst von : Biao Leng, Xiangyang Zhang, Ming Yao, Zhang Xiong
Erschienen in: MultiMedia Modeling
Verlag: Springer International Publishing
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Extracting features with strong expressive and discriminative ability is one of key factors for the effectiveness of 3D model classifier. Lots of research work has illustrated that deep belief networks (DBN) have enough power to represent the distributions of input data. In this paper, we apply DBN for extracting the features of 3D model. After implementing a contrastive divergence method, we obtain a trained-well DBN, which can powerfully represent the input data. Therefore, the feature from the output of last layer is acquired. This procedure is unsupervised. Due to the limit of labeled data, a semi-supervised method is utilized to recognize 3D objects using the feature obtained from the trained DBN. The experiments are conducted in the publicly available Princeton Shape Benchmark (PSB), and the experimental results demonstrate the effectiveness of our method.