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This paper proposes an error concealment technique for video transmission, focusing on motion vector (MV) recovery for both inter- and intra-coded frames, to improve video quality at decoder when video bit stream data incur transmission errors. The proposed algorithm considers slice (i.e., a row of macroblocks (MBs)) errors and uses DP (Dynamic Programming) optimization technique to estimate the lost...
Cloud computing is an emerging technology developed for providing various computing and storage services over the Internet. In this paper, we proposed a privacy-preserving cloud-aware scenario for compressive multimedia applications, including multimedia compression, adaptation, editing/manipulation, enhancement, retrieval, and recognition. In the proposed framework, we investigate the applicability...
Video description is a critical component in video streaming media processing and transmission. Different video data have different levels of contribution to the overall video presentation quality at the receiver side. on the premise of related work, video scene classification, visual sensitive regions(VSR) extraction and MGS(Medium Grain Scalability) encoding, a new approach to progressive description...
Macro-block (MB) in DCT domain which contains the temporal and spatial information of video is a good video quality estimator in both encoding and transmission phase. Furthermore, MBs encoded by block-based coding standards can be obtained easily in bit-stream with a low time-complexity algorithm. Even so, this parameter is rarely used in video quality estimation under lossy network. So the major...
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