Patents by Inventor Po-Nian Chu

Po-Nian Chu 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).

  • Color calibration method and image processing device using the same
    Patent number: 8824029
    Abstract: A color calibration method and an image processing device using the same are provided. The method includes: obtaining a first image of a calibration card having color blocks, each of which corresponds to a standard value; obtaining first sensing values according to the first image, wherein each of the first sensing values corresponds to one of the standard values; generating a calibration table according to the first sensing values and the standard values; determining if a recursive condition is satisfied. The method also includes: obtaining a second image of the calibration card if the recursive condition is not satisfied; obtaining second sensing values according to the second image; adjusting the second sensing values according to the calibration table to generate third sensing values; updating the calibration table according to the third sensing values and the standard values until the recursive condition is satisfied. Accordingly, the calibration table is generated automatically.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 2, 2014
    Assignees: Cal-Comp Electronics & Communications Company Limited, Kinpo Electronics, Inc.
    Inventors: Po-Nian Chu, Chih-Jung Chang
  • COLOR CALIBRATION METHOD AND IMAGE PROCESSING DEVICE USING THE SAME
    Publication number: 20130003146
    Abstract: A color calibration method and an image processing device using the same are provided. The method includes: obtaining a first image of a calibration card having color blocks, each of which corresponds to a standard value; obtaining first sensing values according to the first image, wherein each of the first sensing values corresponds to one of the standard values; generating a calibration table according to the first sensing values and the standard values; determining if a recursive condition is satisfied. The method also includes: obtaining a second image of the calibration card if the recursive condition is not satisfied; obtaining second sensing values according to the second image; adjusting the second sensing values according to the calibration table to generate third sensing values; updating the calibration table according to the third sensing values and the standard values until the recursive condition is satisfied. Accordingly, the calibration table is generated automatically.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 3, 2013
    Applicants: KINPO ELECTRONICS, INC., CAL-COMP ELECTRONICS & COMMUNICATIONS COMPANY LIMITED
    Inventors: Po-Nian Chu, Chih-Jung Chang