Systems and methods for mobile image capture and content processing
First Claim
Patent Images
1. A computer-implemented method of processing a document image, comprising:
- receiving a document image captured by a mobile device;
performing a shape detection test on the document image to produce a first set of coordinates representing a set of edges of the document image;
performing a feature detection test on the document image to produce a second set of coordinates associated with a feature set, wherein the feature detection test comprise a feature matching operation between the feature set of the document image and a document image template;
combining the first set of coordinates and the second set of coordinates to generate a set of adjustment parameters associated with the document image;
cropping the document image based at least on the adjustment parameters;
binarizing the cropped image to produce a binarized cropped image; and
outputting the binarized cropped image.
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Abstract
Systems and methods are provided for processing and extracting content from an image captured using a mobile device. In one embodiment, an image is captured by a mobile device and corrected to improve the quality of the image. The corrected image is then further processed by adjusting the image, identifying the format and layout of the DL, binarizing the image and extracting the content using optical character recognition (OCR). Multiple methods of image adjusting may be implemented to accurately assess features of the DL, and a secondary layout identification process may be performed to ensure that the content being extracted is properly classified.
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Citations
20 Claims
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1. A computer-implemented method of processing a document image, comprising:
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receiving a document image captured by a mobile device; performing a shape detection test on the document image to produce a first set of coordinates representing a set of edges of the document image; performing a feature detection test on the document image to produce a second set of coordinates associated with a feature set, wherein the feature detection test comprise a feature matching operation between the feature set of the document image and a document image template; combining the first set of coordinates and the second set of coordinates to generate a set of adjustment parameters associated with the document image; cropping the document image based at least on the adjustment parameters; binarizing the cropped image to produce a binarized cropped image; and outputting the binarized cropped image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system of processing a document image captured by a mobile device, comprising:
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a processor; a memory coupled to the processor; a receiving unit which receives a document image captured by a mobile device; a shape detection unit which performs a shape detection test on the document image to produce a first set of coordinates representing a set of edges of the document image; a feature detection unit which performs a feature detection test on the document image to produce a second set of coordinates associated with the document image, wherein the feature detection test comprise a feature matching operation between the feature set of the document image and a document image template; an adjustment parameter generation unit which combines the first set of coordinates and the second set of coordinates to generate a set of adjustment parameters; an adjusting unit which crops the document image based at least on the adjustment parameters to remove a portion of the document image to obtain a cropped image; a binarization unit which binarizes the cropped image to produce a binarized cropped image; and an output unit which outputs the binarized cropped image. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification