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This paper proposes a novel scalable compression method for stream cipher encrypted images, where stream cipher is used in the standard format. The bit stream in the base layer is produced by coding a series of nonoverlapping patches of the uniformly down-sampled version of the encrypted image. An off-line learning approach can be exploited to model the reconstruction error from pixel samples of the...
A variety of techniques have been proposed to enhance the error robustness of the video streaming system. However, most of them improve the error resilience during compression rather than after compression. In this paper, we propose a novel transcoding based scheme called Slepian-Wolf based inter frame transcoding (SWIFT) to improve the error resilience of existing compressed video stream. In the...
A variety of techniques have been proposed to enhance the error robustness of the video streaming system. However, most of them improves the error resilience during compression rather than after compression. In this paper, we propose a novel transcoding based scheme called lossless inter frame transcoding (LIFT) scheme to improve the error resilience of existing compressed video stream. In the LIFT...
Reverse playback is one of the most common video cassette recording (VCR) functions for video streaming systems. However, the predictive processing techniques employed in traditional hybrid video coding schemes severely complicate the reverse-play operation. In this paper, we enhance our previously proposed bidirectionally decodable Wyner-Ziv video coding scheme which supports both forward decoding...
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