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A new temporal sampling method for human action recognition using depth maps is proposed. The depth map frames are projected onto three orthogonal Cartesian planes respectively and the absolute difference between two successive projected ones is stacked to form the motion energy. Three sub-action frame sequences are selected accordingly, which constructs Adaptive Temporal Sampling (ATS) descriptor,...
This paper presents an opinion analysis system based on linguistic knowledge which is acquired from small-scale annotated text and raw topic-relevant Web page. Based on the observation on the annotated opinion corpus, some word-, collocation- and sentence-level linguistic features for opinion analysis are discovered. Supervised and unsupervised learning techniques are developed to learn these features...
The approaches for remote sensing (RS) image quality evaluation can be categorized by two different criteria. One is the subjective image quality testing based on many observers. The other is the objective image quality testing based on mathematical calculation. Compared with the subjective method, objective image quality testing is easier for implementation. However, the traditional objective image...
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