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There is a number of automated shot-change detection methods for indexing a video sequence to facilitate browsing and retrieval have been proposed in recent years. In this paper, shot change (hard cut) detection that is based on "inter-frame difference" and its comparison with a threshold are discussed. The summery of changing video threshold on hard cut detection is done. A threshold value...
Error concealment is very important for video communication as an application-layer error control mechanism which can be used independently of the underlying communication infrastructure. In this paper, we propose a noncausal whole-frame concealment algorithm to conceal lost frames in the video sequence. The proposed algorithm consist of two parts. First, the preliminary version of the lost frame...
This paper presents a very efficient method for extracting the non-linear summary of a video sequence by synthesizing new summary frames from a number of original frames. The non-linear summary of a video sequence is fundamentally different from the classical video summarizing techniques which discard full frames. The high efficiency of the method is due to the employment of dynamic programming to...
In this paper, we proposed a reference-free (RF) objective measurement algorithm for the digital video signals of multimedia communication. With the statistical analysis, we utilized the important feature vectors (FVs) which have high relationships with the subjective perceptual quality of digital video sequences. After considering the fundamentality and force of these FVs, we combined them with different...
Video compression standards commonly adopted in wireless multimedia transmission systems generally apply variable length codes (VLCs) to achieve the required data-rates. The resulting bitstreams are sensitive to transmission errors which cause visual artifacts that propagate in both spatial and temporal domains, thus reducing significantly the quality of the reconstructed video sequences. This paper...
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