Television – Camera – system and detail – Combined image signal generator and general image signal...
Reexamination Certificate
2005-08-02
2005-08-02
Garber, Wendy R. (Department: 2612)
Television
Camera, system and detail
Combined image signal generator and general image signal...
C348S241000, C348S273000, C382S266000, C382S275000
Reexamination Certificate
active
06924839
ABSTRACT:
In a sharpening process of image data using a Laplacian operation, a parameter k for controlling the size of a Laplacian to be subtracted from an original image, a parameter θ for suppressing influences of noise and a parameter λ for suppressing an overshoot and an undershoot are respectively provided, and these parameters are altered in accordance with the state of an original image. Thus, it becomes possible to carry out the sharpening process on the image data without causing emphasized noise and occurrences of an overshoot and an undershoot.
REFERENCES:
patent: 4571635 (1986-02-01), Mahmoodi et al.
patent: 4794531 (1988-12-01), Morishita et al.
patent: 5245432 (1993-09-01), Jaffray et al.
patent: 5563963 (1996-10-01), Kaplan et al.
patent: 5787195 (1998-07-01), Tsujimoto et al.
patent: 5880767 (1999-03-01), Liu
patent: 5881164 (1999-03-01), Ichikawa
patent: 6125213 (2000-09-01), Morimoto
patent: 6215527 (2001-04-01), Okamoto et al.
patent: 6252995 (2001-06-01), Takamori
patent: 6611627 (2003-08-01), LaRossa et al.
patent: 6650790 (2003-11-01), Arbeiter et al.
patent: 6665447 (2003-12-01), Chan
patent: 6700626 (2004-03-01), Stessen et al.
patent: 6714665 (2004-03-01), Hanna et al.
patent: 6804408 (2004-10-01), Gallagher et al.
patent: 1 073 014 (2001-01-01), None
Anil K. Jain, “Fundamentals of Digital Image Processing”, 1989, Prentice Hall, pp. 249-251, 262-263, 351-353.
Gonzalez, Rafael C. “Digital Image Processing” pp. 189-202 1992 Addison-Wesley Publishing Company Inc.
Picture Enhancement in Video and Block-Coded Image Sequences, G. Scognamiglio, et al., IEEE Transactions on Consumer Electronics, IEEE Inc., N.Y., vol. 45, No. 3, pp. 680-689 (Aug., 1999).
A Novel Digital Unsharp Masking Algorithm for Color Images, Tie-Jun Shan, Proceedings of the SPIE, SPIE, Bellingham, VA, vol. 1771, pp. 41-46 (Jul., 1992).
Chest Radiograph Enhancement Using the Weighted Unsharp Mask, Jackson, et al., Proceedings of ISMII. IEEE Computer Society Int. Symposium on Medical Imaging and Image Interpretation, XX, pp. 10-13 (1982).
Polesel A., et al.,Adaptive Unsharp Masking for contrast enhancement, 1997IEEE Comput. Soc, US, pp. 267-270XP010254160.
R.C. Gonzalez, et al.,Digital Image Processing, 1992, XP002247092, pp. 195-197.
Kondo, H., et al.,One Approach For Image Edge Sharpening, IEICE Transactions on Information and Systems, Institute of Electronics Information and Comm. Eng. Tokyo, JP, vol. E79-D, No. 5 (1996), pp. 620-624, XP00593281, ISSN: 0916-8532.
Dedachi Shoichi
Eiho Shigeru
Nitta Kuraji
Conlin David G.
Edwards & Angell LLP
Garber Wendy R.
Hernandez Nelson D.
Manus Peter J.
LandOfFree
Image-processing method and recording medium in which such... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image-processing method and recording medium in which such..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image-processing method and recording medium in which such... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3449298