Text Image Quality Based Feedback For Improving OCR

摘要

An electronic device and method capture multiple images of a scene of real world at a several zoom levels, the scene of real world containing text of one or more sizes. Then the electronic device and method extract from each of the multiple images, one or more text regions, followed by analyzing an attribute that is relevant to OCR in one or more versions of a first text region as extracted from one or more of the multiple images. When an attribute has a value that meets a limit of optical character recognition (OCR) in a version of the first text region, the version of the first text region is provided as input to OCR.

主权项

1. A method to improve text recognition by using multiple images of identical text, the method comprising:
capturing a plurality of images of a scene of real world at a plurality of zoom levels, said scene of real world containing text of one or more sizes; extracting from each of the plurality of images, one or more text regions; analyzing an attribute that is relevant to OCR in one or more versions of a first text region as extracted from one or more of said plurality of images; and when the attribute has a value that meets a limit of optical character recognition (OCR) in a version of the first text region, providing the version of the first text region as input to OCR.