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Forensics for digital data has become more and more important, especially for video surveillance systems. Recently, H.264/AVC CODEC has been widely applied to video surveillance systems. In this paper, therefore, a novel video watermarking scheme for H.264/AVC CODEC is proposed. It embeds a watermark bit by adaptively truncating the last nonzero quantized(More)
With the progress of science technology and the vehicle industry, there are more and more vehicles on the road. As a result, the heavy traffic often leads to more and more traffic accidents. In common traffic accident, the driver's inattention is usually a main reason. To avoid this situation, this paper proposes a sleepy eye's recognition system for(More)
This study uses biophysical vulnerability and social vulnerability data from Taiwan’s National Science and Technology Center for Disaster Reduction (NCDR) to assess the vulnerable areas in Hualien County and Taitung County (Hualien-Taitung Area). The most vulnerable townships are Yanping and Chenggong townships in Taitung County, and the least vulnerable(More)
Scalable video coding (SVC) achieves layered coding structure with adaptive inter-layer prediction which causes high computational complexity. To decrease the computational complexity of SVC, we present a fast algorithm to speed up the inter-mode decision process for SVC. The proposed algorithm early terminates inter-mode decision in the enhancement layer(More)
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