System and method for efficient determination of recognition initial conditions
First Claim
Patent Images
1. A method of recognizing at least one object in a digitized representation of an image, comprising the steps of:
- receiving the digitized representation of the image, the representation having a first resolution;
creating a reduced-resolution version of the image responsive to the digitized representation of the image, the reduced-resolution version of the image having a second resolution lower than the first resolution;
providing a plurality of sets of initial conditions, the initial conditions including at least a condition for character recognition-processing of the image;
for each of the sets of initial conditions, identifying each confidence level of character recognition by first character recognition-processing of the reduced resolution version of the image having the second resolution based on each of the sets of initial conditions, each of the sets of initial conditions including a threshold value to binarize an image;
selecting an optimal set of initial conditions from the plurality of sets of initial conditions based on each confidence level identified in said identifying step, the optimal set of initial conditions including a threshold value to binarize the image; and
second character recognition processing of the objects represented in the digitized representation of the image having the first resolution by using the optimal set of initial conditions selected in said selecting step.
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Abstract
A system (200) and method creates (312) a reduced-resolution version of an image and uses the reduced resolution version to identify (324) recognition initial conditions. The recognition initial conditions are then used (326) on the original version of the image to recognize objects such as characters in the image.
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Citations
16 Claims
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1. A method of recognizing at least one object in a digitized representation of an image, comprising the steps of:
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receiving the digitized representation of the image, the representation having a first resolution; creating a reduced-resolution version of the image responsive to the digitized representation of the image, the reduced-resolution version of the image having a second resolution lower than the first resolution; providing a plurality of sets of initial conditions, the initial conditions including at least a condition for character recognition-processing of the image; for each of the sets of initial conditions, identifying each confidence level of character recognition by first character recognition-processing of the reduced resolution version of the image having the second resolution based on each of the sets of initial conditions, each of the sets of initial conditions including a threshold value to binarize an image; selecting an optimal set of initial conditions from the plurality of sets of initial conditions based on each confidence level identified in said identifying step, the optimal set of initial conditions including a threshold value to binarize the image; and second character recognition processing of the objects represented in the digitized representation of the image having the first resolution by using the optimal set of initial conditions selected in said selecting step. - View Dependent Claims (2, 3, 4, 5, 6, 14)
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7. A computer program product comprising a computer readable medium having computer executable program code embodied therein for recognizing at least one object in a digitized representation of an image, the computer program product comprising:
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computer executable program code configured to cause a computer to receive the digitized representation of the image, the representation having a first resolution; computer executable program code configured to cause a computer to create a reduced-resolution version of the image responsive to the digitized representation of the image, the reduced-resolution version of the image having a second resolution lower than the first resolution; computer executable program code configured to cause a computer to provide a plurality of sets of initial conditions, the initial conditions including at least a condition for character recognition-processing of the image; for each of the sets of initial conditions, computer executable program code configured to identify each confidence level of character recognition by first character recognition-processing of the reduced resolution version of the image having the second resolution based on each of the sets of initial conditions, each of the sets of initial conditions including a threshold value to binarize an image; computer executable program code configured to select an optimal set of initial conditions from the plurality of sets of initial conditions based on each confidence level identified, the optimal set of initial conditions including a threshold value to binarize the image; and computer executable program code configured to cause a computer to perform second character recognition-processing of the objects represented in the digitized representation of the image having the first resolution by using the optimal set of initial conditions selected. - View Dependent Claims (8, 9, 10, 11, 12, 15)
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13. A system for recognizing objects, the system comprising:
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a downsampler having an input for receiving a representation of an image having a first resolution, the downsampler for producing and providing at an output thereof a reduced-resolution version of the image responsive to the representation of the image received at the downsampler input the reduced resolution version of the image having a second resolution lower than the first resolution; and a recognition engine having a first input coupled to the downsampler output for receiving the reduced-resolution version of the image and a second input for receiving the representation of the image, the recognition engine for recognizing at least one object in the digitized representation of the image by a method comprising the steps of; providing a plurality of sets of initial conditions, the initial conditions including at least a condition for character recognition-processing of the image; for each of the sets of initial conditions, identifying each confidence level of character recognition by first character recognition-processing of the reduced resolution version of the image having the second resolution based on each of the sets of initial conditions, each of the sets of initial conditions including a threshold value to binarize an image; selecting an optimal set of initial conditions from the plurality of sets of initial conditions based on each confidence level identified in said identifying step, the optimal set of initial conditions including a threshold value to binarize the image; and second character recognition processing of the objects represented in the digitized representation of the image having the first resolution by using the optimal set of initial conditions selected in said selecting step. - View Dependent Claims (16)
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Specification