video watermark embedding in p-frames for h.26 4

1、Computer Science and Technology专业毕业论文 精品论文 VIDEO WATERMARK EMBEDDING IN P-FRAMES FOR H.264关键词：视频编码 水印嵌入技术 H.264格式摘要：The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite

2、the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we ha

3、ve implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control

4、the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermark

5、ing methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distortion

6、s could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking method

7、s. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video wate

8、rmarking algorithms when embedding thewatermark in both I- and P- frames.正文内容 The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video cod

9、ing industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarkin

10、g method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our pr

11、oposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame

12、 watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distortions could be observed for the P-framewat

13、ermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking methods. The simulation results showed; firs

14、t, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video watermarking algorithms when embedding the

15、watermark in both I- and P- frames.The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhi

16、gher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarking method for H.264video coding standard. Ou

17、r proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our proposed watermarking algorithmonly embeds th

18、e watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive fea

19、ture that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distortions could be observed for the P-framewatermarked video. Thus, the watermarking algo

20、rithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking methods. The simulation results showed; first, the number of nonzero quantized ac resid

21、uals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video watermarking algorithms when embedding thewatermark in both I- and P- frames.The adve

22、nt of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to r

23、eplace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P

24、-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residua

25、ls in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression

26、 ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distortions could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistrib

27、ution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking methods. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion inte

28、nsity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video watermarking algorithms when embedding thewatermark in both I- and P- frames.The advent of digital television, the appearance of

29、 digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmo

30、re prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous

31、 video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermark

32、ing framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due

33、to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distortions could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone se

34、veral simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking methods. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. S

35、econd, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video watermarking algorithms when embedding thewatermark in both I- and P- frames.The advent of digital television, the appearance of digital versatile disks (DVI), and thetran

36、sfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyri

37、ght protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding

38、a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and impleme

39、nted in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the waterma

40、rk can be completely recovered. On comparisonwith the original video, no visual distortions could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up

41、 itsrobustness against various attacks compare to the literature video watermarking methods. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark b

42、it of our algorithm is significantly smaller than theprevious compressed-domain video watermarking algorithms when embedding thewatermark in both I- and P- frames.The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demon

43、strate the importance of digital video.Despite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsth

44、at are appropriate for it. In this thesis we have implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase sig

45、nificantly the video bitrate, thus, to control the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface

46、for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparis

47、onwith the original video, no visual distortions could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks comp

48、are to the literature video watermarking methods. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smalle

49、r than theprevious compressed-domain video watermarking algorithms when embedding thewatermark in both I- and P- frames.The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Desp

50、ite the success of MPEG-2 in the video coding industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis w

51、e have implemented a new video watermarking method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to cont

52、rol the increase in video bit rate, our proposed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular water

53、marking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can be completely recovered. On comparisonwith the original video, no visual distor

54、tions could be observed for the P-framewatermarked video. Thus, the watermarking algorithms could be used to secure videodistribution. Our proposed method has undergone several simulation tests in order to check up itsrobustness against various attacks compare to the literature video watermarking me

55、thods. The simulation results showed; first, the number of nonzero quantized ac residuals ineach frame resembles the motion intensity plots in different video sequences. Second, thebit rate increase per watermark bit of our algorithm is significantly smaller than theprevious compressed-domain video

56、watermarking algorithms when embedding thewatermark in both I- and P- frames.The advent of digital television, the appearance of digital versatile disks (DVI), and thetransfer of video files over the Internet demonstrate the importance of digital video.Despite the success of MPEG-2 in the video codi

57、ng industry, a new standard, H.264, withhigher compression efficiency, is poised to replace it. As H.264 digital video becomesmore prevalent, the industry will need copyright protection and authentication methodsthat are appropriate for it. In this thesis we have implemented a new video watermarking

58、 method for H.264video coding standard. Our proposed method embeds the watermark in P-frames insteadof I-frames for the previous video watermarking methods. But embedding a watermark signal in P-frames increase significantly the video bitrate, thus, to control the increase in video bit rate, our pro

59、posed watermarking algorithmonly embeds the watermark in nonzero quantized ac residuals in P-frames. Further, ageneric watermarking framework has been designed and implemented in order to providea simple interface for easy implementation of particular watermarking methods. We found that the P-frame watermarking scheme has the attractive feature that itdoes not reduce the compression ratio. At the same time the overheads due to thealgorithm are minimal and the watermark can