High speed image preprocessing system

Details High speed image preprocessing system High speed image preprocessing system

G - Physics

06

K

G06K 9/36 (2006.01) G06T 9/00 (2006.01)

Patent

CA 2128747

HIGH SPEED IMAGE PREPROCESSING SYSTEM Abstract of the Disclosure A high speed digital image preprocessing system for use in image recognition applications to reduce the processing demands on the associated Host Computer thus allowing for greater system throughput. Compressed image data is transmitted over a Small Computer System Interface (SCSI) for storage in a Multi-Purpose Buffer. The data may decompressed, byte-swapped, byte-flipped, or may be passed through the system unmodified as directed by the Host Computer. A Video Compression-Expansion Processor can handle a variety of data compression formats and receives data from the Multi-Purpose Buffer. Processed data which matches preprogrammed sets of window coordinates can be selectively cropped and stored in multiple First-In- First-Out (FIFO) buffers by Cropper Controller circuitry. The processed and cropped data is then sent to the Host Computer through a Micro-Channel Architecture (MCA) Interface Controller for further recognition processing by the Host Computer. A high data throughput rate is achieved by synchronizing data transfer among the components of the preprocessing system by use of the Multi-Purpose Buffer and a data window storage mechanism.

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