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:
May. 22, 2018
Filed:
Jun. 07, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of detecting and correcting flicker. A video stream of a scene at various instances of time is captured by an image capture device. A local spatio-temporal feature extraction technique is applied, by a processor, to regions of the capture scene within each frame. Candidate flickering region detection is applied, by a classifier, to identify candidate regions. Corresponding candidate regions are tracked over time to detect illumination differences within each analyzed region. An illumination correction technique is applied to the candidate regions where flickering is detected. A flicker-free video is output on a display device.