Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Reexamination Certificate
2006-05-16
2006-05-16
Coles, Edward (Department: 2627)
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
C358S474000, C358S473000, C358S478000, C382S275000, C382S107000, C382S241000
Reexamination Certificate
active
07046401
ABSTRACT:
A camera-based document scanning system produces electronic versions of documents, based on a plurality of images of discrete portions of the documents. The system compares each pair of consecutive images and derives motion parameters that indicate the relative motion between each pair of consecutive images. The system utilizes the derived motion parameters to align and merge each image with respect to the previous images, thereby building a single, mosaic image of the document. In the illustrative embodiment, the motion parameters are derived by minimizing a sum of squared differences equation on a pixel-by-pixel basis.
REFERENCES:
patent: 6075905 (2000-06-01), Herman et al.
patent: 6078701 (2000-06-01), Hsu et al.
patent: 6173087 (2001-01-01), Kumar et al.
patent: 6597816 (2003-07-01), Altunbasak et al.
Irani, Michal, Anandan, P. and Hsu, Steve, Mosaic Based Representations of Video Sequences and Their Applications, IEEE, (c)1995, pp. 605-611.
Mann, S. and Picard, R.W., Virtual Bellows: Constructing High Quality Stills from Video, IEEE, (c)1994, pp. 363-367.
Szeliski, Richard and Coughlan, James, Hierarchical Spline-Based Image Registration, IEEE, (c)1994, pp. 194-201.
Sawhney, Harpeet S., Ayer, Serge and Gorkani, Monika, Model-based 2D & 3D Dominant Motion Estimation for Mosaicing and Video Representation, IEEE, (c) 1995, pp. 583-590.
Liebowitz, David and Zisserman, Andrew, Metric Rectification for Perspective Images of Planes, pp. 1-7.
Sing Bing Kang, Semiautomatic Methods for Receovering Radial Distortion Parameters from a Single Image, Digitial Equipment Corporation, May 1997, pp. 1-21.
Szeliski, Richard, Image Mosaicing for Tele-Reality Applications, Digitial Equipment Corporation, May 1994, pp. 1-30.
Dufaux Frederic
Kang Sing Bing
Ulichney Robert Alan
Coles Edward
Hewlett--Packard Development Company, L.P.
Safaipour Houshang
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