Improved Bit Rate Control for Real-Time MPEG Watermarking
<p/> <p>The alteration of compressed video bitstream due to embedding of digital watermark tends to produce unpredictable video bit rate variations which may in turn lead to video playback buffer overflow/underflow or transmission bandwidth violation problems. This paper presents a novel...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2004-01-01
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| Series: | EURASIP Journal on Advances in Signal Processing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1155/S1110865704402261 |
| _version_ | 1828422164010762240 |
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| author | Pranata Sugiri Wahadaniah Viktor Guan Yong Liang Chua Hock Chuan |
| author_facet | Pranata Sugiri Wahadaniah Viktor Guan Yong Liang Chua Hock Chuan |
| author_sort | Pranata Sugiri |
| collection | DOAJ |
| description | <p/> <p>The alteration of compressed video bitstream due to embedding of digital watermark tends to produce unpredictable video bit rate variations which may in turn lead to video playback buffer overflow/underflow or transmission bandwidth violation problems. This paper presents a novel bit rate control technique for real-time MPEG watermarking applications. In our experiments, spread spectrum watermarks are embedded in the quantized DCT domain without requantization and motion reestimation to achieve fast watermarking. The proposed bit rate control scheme evaluates the combined bit lengths of a set of multiple watermarked VLC codewords, and successively replaces watermarked VLC codewords having the largest increase in bit length with their corresponding unmarked VLC codewords until a target bit length is achieved. The proposed method offers flexibility and scalability, which are neglected by similar works reported in the literature. Experimental results show that the proposed bit rate control scheme is effective in meeting the bit rate targets and capable of improving the watermark detection robustness for different video contents compressed at different bit rates.</p> |
| first_indexed | 2024-12-10T15:43:47Z |
| format | Article |
| id | doaj.art-2fec5a97957e4df78f1271e3aeb9a510 |
| institution | Directory Open Access Journal |
| issn | 1687-6172 1687-6180 |
| language | English |
| last_indexed | 2024-12-10T15:43:47Z |
| publishDate | 2004-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | EURASIP Journal on Advances in Signal Processing |
| spelling | doaj.art-2fec5a97957e4df78f1271e3aeb9a5102022-12-22T01:43:02ZengSpringerOpenEURASIP Journal on Advances in Signal Processing1687-61721687-61802004-01-01200414953279Improved Bit Rate Control for Real-Time MPEG WatermarkingPranata SugiriWahadaniah ViktorGuan Yong LiangChua Hock Chuan<p/> <p>The alteration of compressed video bitstream due to embedding of digital watermark tends to produce unpredictable video bit rate variations which may in turn lead to video playback buffer overflow/underflow or transmission bandwidth violation problems. This paper presents a novel bit rate control technique for real-time MPEG watermarking applications. In our experiments, spread spectrum watermarks are embedded in the quantized DCT domain without requantization and motion reestimation to achieve fast watermarking. The proposed bit rate control scheme evaluates the combined bit lengths of a set of multiple watermarked VLC codewords, and successively replaces watermarked VLC codewords having the largest increase in bit length with their corresponding unmarked VLC codewords until a target bit length is achieved. The proposed method offers flexibility and scalability, which are neglected by similar works reported in the literature. Experimental results show that the proposed bit rate control scheme is effective in meeting the bit rate targets and capable of improving the watermark detection robustness for different video contents compressed at different bit rates.</p>http://dx.doi.org/10.1155/S1110865704402261bit rate controldigital watermarkingreal-time watermarkingquantized DCT watermarking |
| spellingShingle | Pranata Sugiri Wahadaniah Viktor Guan Yong Liang Chua Hock Chuan Improved Bit Rate Control for Real-Time MPEG Watermarking EURASIP Journal on Advances in Signal Processing bit rate control digital watermarking real-time watermarking quantized DCT watermarking |
| title | Improved Bit Rate Control for Real-Time MPEG Watermarking |
| title_full | Improved Bit Rate Control for Real-Time MPEG Watermarking |
| title_fullStr | Improved Bit Rate Control for Real-Time MPEG Watermarking |
| title_full_unstemmed | Improved Bit Rate Control for Real-Time MPEG Watermarking |
| title_short | Improved Bit Rate Control for Real-Time MPEG Watermarking |
| title_sort | improved bit rate control for real time mpeg watermarking |
| topic | bit rate control digital watermarking real-time watermarking quantized DCT watermarking |
| url | http://dx.doi.org/10.1155/S1110865704402261 |
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