Image analysis – Applications
Reexamination Certificate
2006-08-08
2006-08-08
Wu, Jingge (Department: 2625)
Image analysis
Applications
C713S176000
Reexamination Certificate
active
07088844
ABSTRACT:
A perceptual model performs an analysis of a media signal, such as an image or audio signal. The model may be used in media signal processing applications such as digital watermarking and data compression to reduce perceptibility of changes made to code the signal. In one implementation, a method of reducing human perceptibility of visible artifacts attributable to embedding a digital watermark in a media signal is provided. The method determines a contrast measurement for local areas of the media signal; adjusts a contrast measurement for a local area if the contrast measurement is above a predetermined level; and embeds the digital watermark in the local areas in a manner determined at least in part by their respective contrast measurement.
REFERENCES:
patent: 5568570 (1996-10-01), Rabbani
patent: 5636292 (1997-06-01), Rhoads
patent: 5719966 (1998-02-01), Brill et al.
patent: 5721788 (1998-02-01), Powell et al.
patent: 5721805 (1998-02-01), Cook et al.
patent: 5721809 (1998-02-01), Park
patent: 5721818 (1998-02-01), Hanif et al.
patent: 5721836 (1998-02-01), Scharnberg et al.
patent: 5721838 (1998-02-01), Takahashi et al.
patent: 5748763 (1998-05-01), Rhoads
patent: 5848155 (1998-12-01), Cox
patent: 5859920 (1999-01-01), Daly et al.
patent: 5862260 (1999-01-01), Rhoads
patent: 5901178 (1999-05-01), Lee et al.
patent: 5905819 (1999-05-01), Daly
patent: 5915027 (1999-06-01), Cox et al.
patent: 6031914 (2000-02-01), Tewfik et al.
patent: 6061793 (2000-05-01), Tewfik et al.
patent: 6094228 (2000-07-01), Chiardullo et al.
patent: 6181802 (2001-01-01), Todd
patent: 6185312 (2001-02-01), Nakamura et al.
patent: 6222932 (2001-04-01), Rao et al.
patent: 6226387 (2001-05-01), Tewfik et al.
patent: 6233347 (2001-05-01), Chen et al.
patent: 6246777 (2001-06-01), Agarwal et al.
patent: 6249870 (2001-06-01), Kobayashi et al.
patent: 6266387 (2001-07-01), Tewfik et al.
patent: 6282299 (2001-08-01), Tewfik et al.
patent: 6282300 (2001-08-01), Bloom et al.
patent: 6314192 (2001-11-01), Chen et al.
patent: 6385329 (2002-05-01), Sharma et al.
patent: 6400827 (2002-06-01), Rhoads
patent: 6442284 (2002-08-01), Gustafson et al.
patent: 6614914 (2003-09-01), Rhoads et al.
patent: 6631198 (2003-10-01), Hannigan et al.
patent: 6633654 (2003-10-01), Hannigan et al.
patent: 6661905 (2003-12-01), Chupp et al.
patent: 6707930 (2004-03-01), Kalker et al.
patent: 6724911 (2004-04-01), Cox et al.
patent: 6792129 (2004-09-01), Zeng et al.
patent: 2001/0016049 (2001-08-01), Nguyen
patent: 2001/0028715 (2001-10-01), Watanabe
patent: 2001/0030759 (2001-10-01), Hayashi et al.
patent: 2001/0030761 (2001-10-01), Ideyama
patent: 2001/0049788 (2001-12-01), Shur
patent: 2002/0013681 (2002-01-01), Oostveen et al.
patent: 2002/0057823 (2002-05-01), Sharma et al.
patent: 2003/0039376 (2003-02-01), Stach
patent: 2003/0068068 (2003-04-01), Kim et al.
patent: 1120741 (2001-08-01), None
patent: 1132895 (2001-09-01), None
patent: 2358999 (2001-08-01), None
patent: WO96/25005 (1996-08-01), None
patent: WO96/26494 (1996-08-01), None
patent: WO98/37641 (1998-08-01), None
patent: WO02/13138 (2002-02-01), None
U.S. Appl. No. 60/286,239, filed Apr. 24, 2001, Kim.
Autrusseau et al., “A Psychovisual Approach for Watermarking”, Proceedings of SPIE vol. 4314, 2001, pp. 495-504.
Bartens, “Contrast Sensitivity of the Human Eye and It's Effects on Image Quality”, pp. 147-151, SPIE Press, 1999.
Bender, “Applications for Data Hiding, ” IBM Systems Journal, vol. 39, Nos. 384, 2000, pp. 547-568.
Review of John Canny's “A Computational Approach to Edge Detection”, IEEE Trans. Pattern Analyses and Machine Intelligence, pp. 679-698, 1986.
Cox et al., “Secure Spread Spectrum Watermarking for Images, Audio and Video,” Proc. Int. Conf. on Image Processing, Sep. 16-19, 1996, Part vol. 3, pp. 243-6.
Cox, et al., “A Review of Watermarking and the Importance of Perceptual Modeling”, copy to appear in the Proc. Of Electronic Imaging '97, Feb. 1997, 8 pages.
Cox, et al., “Using Perceptual Models”, Chapter 7 of Digital Watermarking, 2002, pp. 201-240.
Delaigle, et al., “Watermarking Algorithm Based on a Human Visual Model”, Signal Processing, Oct. 1998, 23 pages.
De Rosa. et al., “Watermark Capacity Measure Incorporating a Model of the Human Visual System”, Proceeding of SPIE vol. 4314, 2001, pp. 483-494.
Abstract of Echizen, et al., “Maintaining Image Quality in Digital Watermarking Based on Contour Preserving”, as published in Transactions of the Information Processing Society of Japan, vol. 41, No. 6, pp. 1828-1839.
Goffin, “A Low Cost Perceptive Digital Picture Watermarking Method,”Feb. 13-14, 1997, Proc. SPIE-Int. Soc. Opt. Eng., vol. 3022, pp. 264-77.
Hernandez et al., “Statistical Analysis of Watermarking Schemes for Copyright Protection of Images”, Proceedings of the IEEE, vol. 87, No. 7, Jul. 1999, pp. 1142-1166.
Holliman et al., “Adaptive Public Watermarking of DCT-Based Compressed Images,” Proc. SPIE-Int. Soc. Opt. Eng., vol. 3312, pp. 284-295, 1997.
Kovesi, “Lecture 6, Classical Feature Detection”, The University of Western Australia, 2000, 12 pages.
Lim, “Two-Dimensional Signal and Image Processing”, PTR Prentice Hall, New Jersey, 1990 pp. 476-495.
Ogawa et al., “A Watermark Technique for Motion Pictures,” NTT R&D, vol. 47, No. 6 pp. 107-110, 1998.
Podilchuk et al., “Image-Adaptive Watermarking Using Visual Models”, 1998, 37 pages.
Pratt, Digital Image Processing, John Wiley & Sons, New York, 1978, pp. 478-492.
Robert et al., “Masking Models and Watermark unDetection”, Proceeding of SPIE, vol. 4314, 2001, pp. 455-467.
Sharma et al., “Practical Challenges For Digital Watermarking Applications”, May, 2001, 10 pages.
Yong Ju Jung, et al., “Novel Watermarking Embedding Techique Based on Human Visual system”, Proceeding of SPIE vol. 4314, 2001, pp. 475-482.
Kim et al., “Texture Classification Using a Rotated Wavelet Filterbank,” IEEE Transactions on System, Man, and Cybernetics, vol. 30, No. 6, pp. 847-852, 2000.
Bradley Brett A.
Hannigan Brett T.
Reed Alastair M.
Digimarc Corporation
Digimarc Corporation
Tabatabai Abolfazl
Wu Jingge
LandOfFree
Perceptual modeling of media signals based on local contrast... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Perceptual modeling of media signals based on local contrast..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Perceptual modeling of media signals based on local contrast... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3637894