The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 26, 2013
Filed:
Jul. 28, 2009
Chia-kai Liang, Taipei, TW;
Homer H. Chen, Taipei, TW;
Bing-yi Wong, Taipei, TW;
Gene Liu, Taipei, TW;
Chia-Kai Liang, Taipei, TW;
Homer H. Chen, Taipei, TW;
Bing-Yi Wong, Taipei, TW;
Gene Liu, Taipei, TW;
National Taiwan University, Taipei, TW;
Abstract
A photometric calibration method includes: obtaining a target image and a reference image by a light field camera and transforming the reference image into a revised target image corresponding to the target image; calculating a photometric calibration ratio according to a function for correlating the target image and the revised target image by using a numerical algorithm; and the intensity of the target image is divided by the photometric calibration ratio to obtain a calibrated target image. A light field of a scene is formed by all of the calibrated target image so as to improve the quality of the light field.