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This work presents a novel method for human action recognition based on feature level fusion and random projection. The proposed method exploits both spatial-temporal gradient features and Gabor features of the action in video, which helps representing the action more accurately after feature level fusion. Meanwhile, the random projection is employed to reduce the dimensionality of features effectively...
This paper proposes an improved cognitive radio system based on Wireless Statistic Division Multiplexing (WSDM) which is the modified version of the new-style cognitive radio system proposed by Li. The maximal user number is limited by the antenna number at receiver in Li's system. In this paper, we relax this limitation in multiplexing subsystem and propose a modified minimum description length (MDL)...
Micro-motion feature is widely applied in ballistic missile target identification, as an important method. So, on the basis of time-frequency analysis of micro-motion characteristics, identification method based on PZM (pseudo-zernike invariant moment) is proposed in the article. It mainly extracts PZM of frequency image as identification feature. Firstly, one-dimensional time-domain echo signal is...
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