Content authentication of H.264/AVC video stream based on semi-fragile watermarking
For the low bit-rate H.264/AVC video stream,a content authentication scheme was proposed by using semi-fragile watermarking.The energy relationship between two groups of DCT blocks in I frame was utilized to generate content based feature code,which was embedded into low-magnitude DCT coefficients b...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2009-01-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/74649529/ |
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| _version_ | 1841537667803643904 |
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| author | WANG Xiao-jing YANG Gao-bo ZHU Ning-bo |
| author_facet | WANG Xiao-jing YANG Gao-bo ZHU Ning-bo |
| author_sort | WANG Xiao-jing |
| collection | DOAJ |
| description | For the low bit-rate H.264/AVC video stream,a content authentication scheme was proposed by using semi-fragile watermarking.The energy relationship between two groups of DCT blocks in I frame was utilized to generate content based feature code,which was embedded into low-magnitude DCT coefficients by modifying their signs according to their distribution.An error norm function was introduced to keep the bit-rate relatively stable.Moreover,the frame numbers of P frames were embedded into AC coefficients by utilizing the statistical properties of positive and negative signs.Tamper detection was realized by comparing the extracted watermark and reconstructed authentication code.Experimental results demonstrate the effectiveness of the proposed approach. |
| format | Article |
| id | doaj-art-f45500ae7cb344eebebcf71725271f55 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2009-01-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-f45500ae7cb344eebebcf71725271f552025-01-14T08:27:32ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2009-01-0130717874649529Content authentication of H.264/AVC video stream based on semi-fragile watermarkingWANG Xiao-jingYANG Gao-boZHU Ning-boFor the low bit-rate H.264/AVC video stream,a content authentication scheme was proposed by using semi-fragile watermarking.The energy relationship between two groups of DCT blocks in I frame was utilized to generate content based feature code,which was embedded into low-magnitude DCT coefficients by modifying their signs according to their distribution.An error norm function was introduced to keep the bit-rate relatively stable.Moreover,the frame numbers of P frames were embedded into AC coefficients by utilizing the statistical properties of positive and negative signs.Tamper detection was realized by comparing the extracted watermark and reconstructed authentication code.Experimental results demonstrate the effectiveness of the proposed approach.http://www.joconline.com.cn/zh/article/74649529/video authenticationH.264/AVCsemi-fragile watermarkingsign encoding |
| spellingShingle | WANG Xiao-jing YANG Gao-bo ZHU Ning-bo Content authentication of H.264/AVC video stream based on semi-fragile watermarking Tongxin xuebao video authentication H.264/AVC semi-fragile watermarking sign encoding |
| title | Content authentication of H.264/AVC video stream based on semi-fragile watermarking |
| title_full | Content authentication of H.264/AVC video stream based on semi-fragile watermarking |
| title_fullStr | Content authentication of H.264/AVC video stream based on semi-fragile watermarking |
| title_full_unstemmed | Content authentication of H.264/AVC video stream based on semi-fragile watermarking |
| title_short | Content authentication of H.264/AVC video stream based on semi-fragile watermarking |
| title_sort | content authentication of h 264 avc video stream based on semi fragile watermarking |
| topic | video authentication H.264/AVC semi-fragile watermarking sign encoding |
| url | http://www.joconline.com.cn/zh/article/74649529/ |
| work_keys_str_mv | AT wangxiaojing contentauthenticationofh264avcvideostreambasedonsemifragilewatermarking AT yanggaobo contentauthenticationofh264avcvideostreambasedonsemifragilewatermarking AT zhuningbo contentauthenticationofh264avcvideostreambasedonsemifragilewatermarking |