Title
Matrix Capsule Convolutional Projection For Deep Feature Learning
Abstract
Capsule projection network (CapProNet) has shown its ability to obtain semantic information, and spatial structural information from the raw images. However, the vector capsule of CapProNet has limitations in representing semantic information due to ignoring local information. Besides, the number of trainable parameters also increases greatly with the dimension of the feature vector. To that end, we propose a matrix capsule convolution projection (MCCP) module by replacing the feature vector with a feature matrix, of which each column represents a local feature. The feature matrix is then convoluted by columns into capsule subspaces to decrease the number of trainable parameters effectively. Furthermore, the CapDetNet is designed to explore the structural information encoding of the MCCP module based on object detection task. Experimental results demonstrate that the proposed MCCP outperforms the baselines in image classification, and CapDetNet achieves the 2.3% performance gain in object detection.
Year
DOI
Venue
2020
10.1109/LSP.2020.3030550
IEEE SIGNAL PROCESSING LETTERS
Keywords
DocType
Volume
Capsule network, classification, object detection, orthogonal projection
Journal
27
Issue
ISSN
Citations 
99
1070-9908
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Canqun Xiang191.63
Wang, Zhennan201.01
Shishun Tian300.34
Jianxin Liao400.34
Wenbin Zou526819.75
Chen Xu626929.36