Digital watermarking for compressed videos
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...
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| Format: | Thesis |
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2008
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| Online Access: | http://hdl.handle.net/10356/3296 |
| _version_ | 1824455986468880384 |
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| author | Sugiri Pranata. |
| author2 | Chua, Hock Chuan |
| author_facet | Chua, Hock Chuan Sugiri Pranata. |
| author_sort | Sugiri Pranata. |
| collection | NTU |
| description | 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. |
| first_indexed | 2025-02-19T03:46:55Z |
| format | Thesis |
| id | ntu-10356/3296 |
| institution | Nanyang Technological University |
| last_indexed | 2025-02-19T03:46:55Z |
| publishDate | 2008 |
| record_format | dspace |
| spelling | ntu-10356/32962023-07-04T15:18:22Z Digital watermarking for compressed videos Sugiri Pranata. Chua, Hock Chuan School of Electrical and Electronic Engineering Guan, Yong Liang DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems 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. Master of Engineering 2008-09-17T09:26:45Z 2008-09-17T09:26:45Z 2003 2003 Thesis http://hdl.handle.net/10356/3296 Nanyang Technological University application/pdf |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems Sugiri Pranata. Digital watermarking for compressed videos |
| title | Digital watermarking for compressed videos |
| title_full | Digital watermarking for compressed videos |
| title_fullStr | Digital watermarking for compressed videos |
| title_full_unstemmed | Digital watermarking for compressed videos |
| title_short | Digital watermarking for compressed videos |
| title_sort | digital watermarking for compressed videos |
| topic | DRNTU::Engineering::Electrical and electronic engineering::Computer hardware, software and systems |
| url | http://hdl.handle.net/10356/3296 |
| work_keys_str_mv | AT sugiripranata digitalwatermarkingforcompressedvideos |