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首页> 外文会议>Mathematics of Data/Image Pattern Recognition, Compression, Coding, and Encryption X, with Applications; Proceedings of SPIE-The International Society for Optical Engineering; vol.6700 >Compressed vs. uncompressed domain video watermarking
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Compressed vs. uncompressed domain video watermarking

机译：压缩与未压缩域视频水印

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摘要

When considering the multimedia production chain from the content creation to the end-user consumption, watermarking provides a well defined functionality: property right identification and copy-maker tracking. However, its place within this chain is not yet clearly stated. The present paper describes an objective study aiming at establishing the fimctional peculiarities in the cases when watermarking follows compression. First, some general limits concerning the transparency, robustness and capacity in compressed (MPEG-4 AVC) domain watermarking are identified. Then, these results are discussed and compared to the uncompressed domain watermarking case. The experiments were carried out on a video corpus of 5 video sequences, each of them of 35000 frames (about 25 minutes each), coded at 256kbit/s.
机译：考虑从内容创建到最终用户消费的多媒体生产链时，加水印提供了明确定义的功能：财产权识别和复制者跟踪。但是，它在该链中的位置尚未明确说明。本文描述了一项客观研究，旨在在水印加紧压缩的情况下建立功能特性。首先，确定一些有关压缩（MPEG-4 AVC）域水印的透明性，鲁棒性和容量的一般限制。然后，讨论这些结果并将其与未压缩的域水印情况进行比较。实验是在5个视频序列的视频语料库上进行的，每个视频序列为35000帧（每个约25分钟），编码为256kbit / s。

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