Automatic document reading system for technical drawings
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Abstract
A system and method for electronic archival of paper-based technical drawings includes a system having a processor, a form learning unit in signal communication with the processor for learning the form of a model drawing image, a form localization unit in signal communication with the processor for localizing the form of an input drawing image, an optical character recognition unit in signal communication with the processor for optically recognizing identification text of the input drawing image, and a result verification unit in signal communication with the processor for verifying the results of the recognized identification text of the input drawing image; and further includes a method for providing a model drawing image, learning the form of the provided model drawing image, receiving an input drawing image, localizing the form of the input drawing image, optically recognizing identification text of the input drawing image, verifying the results of the recognized identification text of the input drawing image, and storing the input drawing image and the corresponding verified identification text into a drawing database.
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Citations
56 Claims
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1-28. -28. (canceled)
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29. A method for electronic archival of paper-based technical drawings, the method comprising:
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providing a model drawing image;
learning the form of the provided model drawing image;
receiving an input drawing image;
localizing the form of the input drawing image;
optically recognizing identification text of the input drawing image;
verifying the results of the recognized identification text of the input drawing image; and
storing the input drawing image and the corresponding verified identification text into a drawing database. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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48. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for electronic archival of paper-based technical drawings, the method steps comprising:
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providing a model drawing image;
learning the form of the provided model drawing image;
receiving an input drawing image;
localizing the form of the input drawing image;
optically recognizing identification text of the input drawing image;
verifying the results of the recognized identification text of the input drawing image; and
storing the input drawing image and the corresponding verified identification text into a drawing database. - View Dependent Claims (49, 50, 51)
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52. A system for electronic archival of paper-based technical drawings, the system comprising:
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providing means for providing a model drawing image;
learning means for learning the form of the provided model drawing image;
receiving means for receiving an input drawing image;
localizing means for localizing the form of the input drawing image;
recognizing means for optically recognizing identification text of the input drawing image;
verifying means for verifying the results of the recognized identification text of the input drawing image; and
storing means for storing the input drawing image and the corresponding verified identification text into a drawing database. - View Dependent Claims (53, 54, 55)
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56. A system (100) for electronic archival of paper-based technical drawings, the system comprising:
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a processor (102);
a form learning unit (160) in signal communication with the processor for learning the form of a model drawing image;
a form localization unit (170) in signal communication with the processor for localizing the form of an input drawing image;
an optical character recognition unit (180) in signal communication with the processor for optically recognizing identification text of the input drawing image; and
a result verification unit (190) in signal communication with the processor for verifying the results of the recognized identification text of the input drawing image.
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Specification