Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-12-05
2006-12-05
Moore, David (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003060, C358S448000, C382S274000, C382S275000
Reexamination Certificate
active
07145697
ABSTRACT:
Apparatus and methods that adjust image data for show-through image information of an image on a front side of an image bearing substrate having image data on a back side and on an adjacent side of a backing substrate, e.g., the pages of a bound volume. Image data for a front side image, a back side image and an adjacent side image is obtained from an optical sensor that senses light reflected from the image bearing substrate. The image data is stored in a memory and is used to determine scanned density data and approximate absorbency data for the respective sides of the substrates. Show-through compensated density data for the front side image is computed by filtering the absorbency data for the back and adjacent side with a filter characteristic of the show-through characteristics of the image bearing substrate and subtracting this filtered absorbency data from the front side scanned density data. If required, the show-through compensated density data for the front, side image is converted into a show-through compensated reflectance image.
REFERENCES:
patent: 5371616 (1994-12-01), Numakura et al.
patent: 5646744 (1997-07-01), Knox
patent: 5677776 (1997-10-01), Matsuda et al.
patent: 5808756 (1998-09-01), Matsuda
patent: 5832137 (1998-11-01), Knox
patent: 5973792 (1999-10-01), Matsuda
patent: 6101283 (2000-08-01), Knox
“Advanced Engineering Electromagnetics”, by Constantine Balanis, John Wiley & Sons, copyright 1989, pp. 220-236.
“Restoration of Noisy Images Blurred by a Random Point Spread Function”, by Mehmet Bilgen and Hsien-Sen Hung, IEEE International Symposium on Circuits and Systems, May 1-3, 1990, vol. 1, pp. 759-762.
Gaurav Sharma, “Show-through Cancellation in Scans of Duplex Printed Documents”, IEEE Transactions on Image Processing, Sep. 24, 1999.
Gaurav Sharma, “Cancellation of Show-through in Duplex Scanning”, Proceedings International Conference on Image Processing, Sep. 10-13, 2000, Vancouver, Canada, vol. II, pp. II-609-612.
Knox Keith T.
Sharma Gaurav
Fay Sharpe Fagan Minnich & McKee LLP
Moore David
Thompson James A.
LandOfFree
Show-through compensation apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Show-through compensation apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Show-through compensation apparatus and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3671343