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Re: Formfeeding scanners



Robert,

The problem that would most likely result in using a form feeding mechanism for an optical capture device is that the recorded distance that is measured by a sprocket would not correspond to the actual dwell time of the capture devices array (this is true of analog video line or CCD digital devices).

Results for miss-matched dwell times in captured imagery cause inaccuracies for most types of image processing that use a segmentation method e.g., any recognition technologies. Other direct results will include output and display inaccuracies in the processed signal wave transform interpolations that display and print devices perform viz., undesirable visual queues like distortions.

If documents are brittle, a common production strategy is to make a high-quality copy set of the documents, so that the copies can be feed into the scanner. Another consideration of brittle documents is that they are friable and deposit organic material in key subsystems of the scanner, which will require a great deal of maintenance to correct.

Sincerely,

Michael
-------------------------------------------------
Michael B. Kennedy, D.Sc.
Chief Technology Officer
1-800-347-9310 or 203-762-2212
www.imagingprofessional.com
www.imagepub.net
www.kmprofessional.com
Imaging Professional, LLC is a US Dept. of Defense Certified Contractor
"Praestantia per scientiam"


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