Enhancing text in images
First Claim
Patent Images
1. A computer-implemented method comprising:
- receiving, by a computing system, a plurality of images each image including a corresponding version of an identified candidate text region;
aligning, by the computing system, each candidate text region from the plurality of images to a high resolution grid;
compositing, by the computing system, the aligned candidate text regions to create a single superresolution image; and
performing, by the computing system, character recognition on the superresolution image to identify text.
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Abstract
Methods, systems, and apparatus including computer program products for enhancing text in images are provided. In one implementation, a computer-implemented method is provided. The method includes receiving a plurality of images each image including a corresponding version of an identified candidate text region and aligning each candidate text region from the plurality of images to a high resolution grid. The method also includes compositing the aligned candidate text regions to create a single superresolution image and performing character recognition on the superresolution image to identify text.
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Citations
31 Claims
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1. A computer-implemented method comprising:
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receiving, by a computing system, a plurality of images each image including a corresponding version of an identified candidate text region; aligning, by the computing system, each candidate text region from the plurality of images to a high resolution grid; compositing, by the computing system, the aligned candidate text regions to create a single superresolution image; and performing, by the computing system, character recognition on the superresolution image to identify text. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer program product, encoded on a computer-readable medium, operable to cause data processing apparatus to perform operations comprising:
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receiving a plurality of images each including a corresponding version of an identified candidate text region; aligning each candidate text region from the plurality of images to a high resolution grid; compositing the aligned candidate text regions to create a single superresolution image; and performing character recognition on the superresolution image to identify text. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A system comprising:
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means for receiving a plurality of images each including a corresponding version of an identified candidate text region; means for aligning each candidate text region from the plurality of images to a high resolution grid; means for compositing the aligned candidate text regions to create a single superresolution image; and means for performing character recognition on the superresolution image to identify text.
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22. A system comprising:
one or more data processing apparatus configured to perform operations comprising; receiving a plurality of images each including a corresponding version of an identified candidate text region; aligning each candidate text region from the plurality of images to a high resolution grid; compositing the aligned candidate text regions to create a single superresolution image; and performing character recognition on the superresolution image to identify text. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
Specification