Patents by Inventor Liangxu CHEN

Liangxu CHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9613266
    Abstract: 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.
    Type: Grant
    Filed: January 29, 2014
    Date of Patent: April 4, 2017
    Assignee: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai Liang, Liangxu Chen, Xingyu Zhao
  • Publication number: 20160259972
    Abstract: 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.
    Type: Application
    Filed: January 29, 2014
    Publication date: September 8, 2016
    Applicant: GRG Banking Equipment Co., Ltd.
    Inventors: Tiancai LIANG, Liangxu CHEN, Xingyu ZHAO