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Title: Digital watermarking for compressed videos
Authors: Sugiri Pranata.
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems
Issue Date: 2003
Abstract: In this thesis, a fast and real-time watermarking system for MPEG videos in the quantized DCT (QDCT) domain based on spread spectrum technique is designed and developed to alleviate several drawbacks suffered by other watermarking systems. A compressed-domain edge detection mechanism is incorporated to minimize the perceptual distortion of the watermarked videos. Two watermark embedding approaches, namely additive and multiplicative embedding, are investigated. While there is always a trade-off between retrieval reliability and invisibility in watermarking, our proposed system is able to achieve high watermark robustness and acceptable video fidelity.
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:EEE Theses

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