Image analysis – Histogram processing – For setting a threshold
Patent
1987-05-08
1990-08-14
Boudreau, Leo H.
Image analysis
Histogram processing
For setting a threshold
382 34, 382 41, 382 59, G06K 936
Patent
active
049493914
ABSTRACT:
An adaptive image acquisition system employing a hand-held optical scanner or camera is disclosed. The system includes an adaptive camera exposure control system to adjust the camera exposure time to the media's reflectivity characteristics. The system assembles a "filmstrip" of images from compressed video data, wherein redundant image data appearing in successive image frames has been removed. The system employs a correlation process between successive frames to identify the redundant frame information and determined the camera velocity. By adapting the correlation process to the velocity of the camera, the effects of variations in the velocity may be substantially eliminated.
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Bennett Sanford M.
Boatner Bruce E.
Faulkerson James L.
Foden Edwin S.
Gipe Michael A.
Boudreau Leo H.
Couso Jose L.
Everex Ti Corporation
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