Dissertation > Excellent graduate degree dissertation topics show

Research and Implementation of MPEG-2 video digital watermarking

Author: SuQin
Tutor: CaiXiangYun
School: Kunming University of Science and Technology
Course: System theory
Keywords: copyright protection video digital watermarking spread spectrum MPEG-2
CLC: TP309.7
Type: Master's thesis
Year: 2008
Downloads: 46
Quote: 0
Read: Download Dissertation


Digital multimedia data supplies a world of convenience for the access of meltimedia data.Because digital pproducition is easy to be copied and tampered lawlessly,the information security and copyright protection of digital production is a problem crying for solution.Digital watermarking technology supplies a useful method for the copyright protection of digital production. At present,digital watermark have many results in the research about image digital watermark,but the researches on video and audio watermarking are few.Recently,digital video has already been a necessary entertainment method in our life,but the coresponding copyright protection has not grown mature yetThe research of copyright protection technology of digital viedo production become urgent,the research and development of video watermarking technology become more important.In this paper, some techniques about digital watermarking,the characters of video digital watermark and the current technical methods are disscussed.The paper introduces in detail the standard of MPEG-2 and date structure of MPEG-2,aims at the characters of the standard of MPEG-2,proposes a MPEG-2 video watermarking algorithm.By the way,.embedding and extracting watermark in compressed MPEG-2 video domain are carried out in VC development. When embedding,I frame is the localizations of the watemark,the watermark extraction process does not require the original video.The former users hash scrambling technology, chaos theory and spread frequency technology to do the watermark pretreatment.the algorithm embeds the watermark to direct current coefficients,and changes the chroma direct current coefficients according to their absolute values sef-asaptively.The algorithm use hash scrambling technology, chaos theory and spread frequency technology to video watermarking.The increase the invisibility,robustness and security of the watermark. The paper does the simulation experiments,then gives the result data and graphs. Lots of experiment results indicate the video vatermarking used the proposed algorithms can extract the watermark after sufered code rate change,frame regrouping,frame delering and other attacks. It shows the watermark has good robustness.At last, the thesis summarized all of research and have probed into the thchnology future developing direction of digital watermark.

Related Dissertations

  1. Rate-distortion Optimization Based Rate Control,TN919.81
  2. Optimizing and Realising Research on Vedio Compression in TV Guidance System,TN919.81
  3. The Design and Development of Classroom Video Analysis and Diagnosis System Based on the Web,TP393.09
  4. Preparation of Enrofloxacin Sustained-release Preparations and Its Pharmacokinetics,R96
  5. Flow Behavior Description of Two-Phase Flow Based on Image Processing Techniques,TP391.41
  6. Borehole imaging device based on embedded systems research,P634.3
  7. Network literature research its copyright protection mode,D923.41
  8. Research of Video Face Recognition Based on Weighted Voting and Key-Frame Extraction,TP391.41
  9. Research on Contourlet Transform and Its Application on Image Processing,TP391.41
  10. The Designing of HD Vehicle Detection System Based on Fpga,TP391.41
  11. High Efficiency 3D Video Representation and Coding,TN919.81
  12. Research on Parallel Computation of H.264 Based on CUDA,TN919.81
  13. In Copyright Protection of the Character of Works,D923.41
  14. The Study on Copyright Protection for Computer Fonts,D923.41
  15. Research on the Issues of Copyright in Internet Map,D923.41
  16. The Design and Implementation of Virtual Learning Community for Educational Video,G434
  17. Design and Application of Embedded Network Video Surveillance System,TP277
  18. Embedded video decoder motion compensation process data layout optimization,TN919.81
  19. Embedded smart handheld navigation devices camera module design and implementation,TN966
  20. Collaborative learning and digital fingerprint based on copyright protection and tracking technology,TP309
  21. Based on DM368 HD IP Camera Software System Design and Implementation,TP391.41

CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > General issues > Security and confidentiality > Encryption and decryption
© 2012 www.DissertationTopic.Net  Mobile