System and method for determining a location and orientation in

Details System and method for determining a location and orientation in System and method for determining a location and orientation in

1995-09-25

1998-05-05

Coles, Sr., Edward L.

Facsimile and static presentation processing

Natural color facsimile

Scanning

358449, 358487, 358488, 358494, 358500, 358506, 358512, 358514, H04N 140, H04N 104, H04N 146

Patent

active

057483442

ABSTRACT:
A digital scanning system for scanning a document includes a full width array having two sets of color sensitive photosites, each set of photosites being sensitive to a different color of light and a backdrop portion. The backdrop portion is colored such that the backdrop portion appears nearly black to one set of color sensitive photosites and appears nearly white to a different set of color sensitive photosites. the scanning system further includes a light source, a document edge detection circuit operatively connected to the set of color sensitive photosites which perceive the backdrop portion as being nearly black, and an image processing circuit operatively connected to the set of color sensitive photosites which perceive the backdrop portion as being nearly white.

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patent: 5041866 (1991-08-01), Imoto
patent: 5065185 (1991-11-01), Powers et al.
patent: 5146321 (1992-09-01), Lees et al.
patent: 5510908 (1996-04-01), Watanabe et al.

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