Biometric imaging system and method
AssigneeCross Match Technology, Inc.
InventorsGeorge W. McClurg, John F. Carver, Walter G. Scott, Gregory Zyzdryn
Life of this patent
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Abstract
A method and system of obtaining a ten-print plain impression fingerprint includes scanning a print image, processing the scanned image, separating the processed image into individual fingerprint images, and determining how many print images have been scanned. The method also includes comparing the print image to a previously scanned print image, quality classifying the separated images, indicating a quality classification of the print image based on the classifying step, and determining whether the print image is of a good quality. The system can include a ten-print scanner having a finger guide and a platen used to position four finger slaps onto the platen.
Claims45
A method comprising:
- (a) scanning a print image;
- (b) processing the scanned image;
- (c) separating the processed image into individual fingerprint images;
- (d) comparing the print image to a previously scanned print image;
- (e) quality classifying the separated images;
- (f) indicating a quality classification of the print image based on the quality classifying step;
- and
- (g) determining whether the print image is of a good quality.
A method comprising:
- (a) scanning a print image;
- (b) filtering the print image;
- (c) binarizing the filtered image;
- (d) detecting a fingerprint area based on the binarized image;
- (e) detecting a fingerprint shape based on the binairized image;
- and
- (f) determining whether the fingerprint area and shape are acceptable.
A method of processing fingerprints, the method comprising:
- (a) scanning a print image of at least one finger placed on a platen;
- and
- (b) determining whether the scanned print image includes data representative of at least one finger positioned at a diagonal relative to a section of the platen.
A system comprising:
- means for scanning a print image;
- means for processing the scanned image;
- means for separating the processed image into individual fingerprint images;
- means for comparing the print image to a previously scanned print image;
- means for quality classifying the separated images;
- means for indicating a quality classification of the print image based on the means for quality classifying;
- and
- means for determining whether the print image is of a good quality.
A system comprising:
- means for scanning a print image;
- means for filtering the print image;
- means for binarizing the filtered image;
- means for detecting a fingerprint area based on the binarized image;
- means for detecting a fingerprint shape based on the binairized image;
- and
- means for determining whether the fingerprint area and shape are acceptable.
A system for processing fingerprints, the system comprising:
- means for scanning a print image of at least one finger placed on a platen;
- and
- means for determining whether the at least on finger is from a left of right hand.
A system comprising:
- a platen that receives a finger or thumb;
- a scanner that scans the finger or thumb on the platen;
- a processor that processes the scanned image;
- a separator that separates the processed image into individual fingerprint images;
- a comparator that compares the print image to a previously scanned print image;
- a classifier that classifies the separated images;
- an output device that indicates a classification of the print image based on the classifier;
- and
- an image quality determining device that determines whether the print image is of a good quality.
Dependencies are inferred from the claim text.