Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Locating edges of a scanned document










Image Number 7 for United States Patent #6839155.

A structure and method for improved detection of the edges of a document in a scanner provides for positioning a width detection backer so that it is simultaneously in the field of view of the optical element of the scanner and out of the focal plane of the optical element. A portion of a document is positioned in the optical path between the optical element and the width detection backer and scanned with the optical element. Information from the scanning step is analyzed to identify data indicative of an edge of the document. The out of focus width detection backer, which remains stationary while scanning the document portion presents very little variation in intensity and other data, heightening the contrast between the document and the width detection backer, and reducing the likelihood of erroneously identifying elements of the width detection backer as document edge features.








 
 
  Recently Added Patents
Method and system for automatic 3-D image creation
Optimized control of an energy supplying system and an energy consuming system
Protection circuit, substrate for electro-optical device, electro-optical device, electrophoretic display device, electronic apparatus, and manufacturing method of electro-optical device
Information processing apparatus capable of authentication processing with improved user convenience, control program for information processing apparatus, and recording medium having control
Image forming apparatus with static elimination
Gathering user feedback in web applications
Organizer
  Randomly Featured Patents
Integrated-optic channel monitoring
Auto-updating reader program for document files
Method and apparatus for setting and managing operational dynamics within cognitive radio networks
Portable lighting and power-generating system
Wall elements for gas turbine engine combustors
Catheter support
Moving apparatus
Microwave melter
Multi-functional printer device having modular structure
Composite having conductive layer on resin layer and method of manufacturing