Patent ID: 6108462
Filing Date: 2000-08-22
Classification: H04N

Abstract:
An image processing device, comprising:an image input member for acquiring information from a document, said image input member comprising:a scan activation means for selectively activating scanning operations within said image input member; andspaced apart first and second sensors for reading the information when illuminated by a light source and converting the read-in information into corresponding first and second image data streams in response to said scan activation means; andan image processing member in communication with said image input member, said image processing member comprising:a memory in communication with said image input member for storing the first and second image data streams;a speed judgment device in communication with said memory for comparing the first and second image data streams and obtaining correlation and time-offset information therefrom, and generating scanning speed in response to the obtained correlation and time-offset information;a scan status judgment device in communication with said memory for detecting when said image input member has activated for scanning movement with said scan activation means activating scan operations, and generating a scan status if status of scanning movement has changed;a scan status speed judgment device in communication with said scan status judgment device and said speed judgment for generating a scanning speed when received said scan status signal; andan image corrector in communication with said speed judgment device and said scan status speed judgment device for correcting scanning distortion present in one of the stored image data streams based on the scanning speeds generated by said scan status speed judgment and speed judgment devices.