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Saliency detection in videos has attracted great attention in recent years due to its wide range of applications. In this paper, a novel spatiotemporal saliency detection model based on clustering is proposed. The discrete cosine transform coefficients are used as features to generate the spatial saliency map firstly. We utilize 2D Gaussian function to estimate the absolute feature difference in consideration...
Saliency detection in videos has attracted great attention in recent years due to its wide range of applications, such as object detection and recognition. A novel spatiotemporal saliency detection model is proposed in this paper. The discrete cosine transform coefficients are used as features to generate the spatial saliency maps firstly. Then, a hierarchical structure is utilized to filter motion...
To meet the special requirements of resource-limited video sensors in wireless video sensor network (WVSN), low-complexity video encoding technique is highly desired. In distributed multi-view video coding (DMVC) system, multi-view video sources are encoded separately and decoded dependently, so the burden of huge computation is shifted from the encoder side to the decoder side. The generation of...
A major challenge in video coding and transmission over mobile networks is that the wireless channel is error-prone and the channel resources are limited. In this work, we analyze the picture distortion caused by channel errors and the distortion propagation behavior in its subsequent frames along the motion prediction path. We propose a linear fitting approach algorithm to achieve a low complexity...
The authors present a hybrid hardware/software implementation for packetizing of MPEG-2 based video and audio ES to Transport Stream (TS). We have achieved one program TS packetization using DSP chips before. In that configuration, two 16-bit fixed-point DSP chips are needed for video and audio PES, TS packetization and formation, respectively (Yong Ji and Zhaohui Cai, 1998). In this design, we integrate...
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