COMPLEX BACKGROUND-ORIENTED OPTICAL CHARACTER RECOGNITION METHOD AND DEVICE

摘要

A complex background-oriented optical character recognition method and device are provided. The method of the present invention includes: collecting image information to obtain a collected image; according to character characteristics, acquiring a target character region from the collected image, and taking same as a target object; extracting character edge information in the target object using a differential method to obtain an extracted image; superposing the target object and the extracted image to obtain a recovery image; conducting inversion and Gaussian filtration processing on the recovery image to obtain a processed image; searching for a target character location in the processed image; and recognizing the target character location. On this basis, accurate and quick locating and recognition of characters can be realized on the basis of effectively suppressing background noise and highlighting character information.

主权项

1. A complex background-oriented optical character recognition method, comprising:
capturing image information, to obtain a captured image; acquiring a region of target characters from the captured image based on character characteristics as a target object; extracting character edge information in the target object by using a differential method, to obtain an extracted image; superposing the target object and the extracted image, to obtain a recovery image; performing an inverse and a Gaussian filtering on the recovery image, to obtain a processed image; searching for a location of the target characters in the processed image; and recognizing the target characters.