@Article{JFBI-7-4, author = {}, title = {Learning Block Group Spase Representation Combined with Convolutional Neural Networks for RGB-D Object Recognition}, journal = {Journal of Fiber Bioengineering and Informatics}, year = {2014}, volume = {7}, number = {4}, pages = {603--613}, abstract = {RGB-D (Red, Green and Blue-Depth) cameras are novel sensing systems that can improve image recognition by providing high quality color and depth information in computer vision. In this paper we propose a model to study feature representation of combined Convolutional Neural Networks (CNN) and Block Group Sparse Coding (BGSC). Firstly, CNN is used to extract low-level features from raw RGB- D images directly by applying unsupervised algorithm. Then, BGSC is used to obtain higher feature representation for classification by incorporating both the group structure for low-level features and the block structure for the dictionary in subsequent learning processes. Experimental results show that the CNN-BGSC approach has higher accuracy on a household RGB-D object dataset by linear predictive classifier than using Convolutional and Recursive Neural Networks (CNN-RNN), Group Sparse Coding (GSC), and Sparse Representation base Classification (SRC).}, issn = {2617-8699}, doi = {https://doi.org/10.3993/jfbi12201413}, url = {https://global-sci.com/article/86685/learning-block-group-spase-representation-combined-with-convolutional-neural-networks-for-rgb-d-object-recognition} }