Automatic object plane selection in an optical image scanner
OwnerRodney C. Harrisinventor
Life of this patent
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Abstract
Automatic object plane selection in an optical image scanner is provided. One embodiment is a method for optically scanning a document comprising generating a scanned image of a document at a first object plane located a first distance above a platen, generating a scanned image of the document at a second object plane located a second distance above the platen, and automatically determining which of the scanned images has better image quality.
Claims16
A method for optically scanning a document, the method comprising:
- generating a scanned image of a document at a first object plane located a first distance above a platen;
- generating a scanned image of the document at a second object plane located a second distance above the platen;
- and
- automatically determining which of the scanned images has better image quality.
An optical image scanner comprising
- a platen;
- an optical head configured to scan a first distance above the platen and at a second object plane located a second distance above the platen;
- logic configured to generate a scanned image of the document at the first object plane;
- logic configured to generate a scanned image of the document at the second object plane;
- and
- logic configured to determine which of the scanned images has better image quality.
An optical image scanner comprising:
- a means for generating a scanned image of the document at a first object plane located a first distance above a platen;
- a means for generating a scanned image of the document at a second object plane located a second distance above the platen;
- and
- a means for determining which of the scanned images has better image quality.
A computer program embodied in a computer-readable medium comprising:
- logic configured to generate a scanned image of the document at the first object plane;
- logic configured to generate a scanned image of the document at the second object plane;
- and
- logic configured to automatically determine which of the scanned images has better image quality.
Dependencies are inferred from the claim text.