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. 27, 2012
Filed:
Mar. 09, 2007
Niv Wagner, Rechovot, IL;
Niv Wagner, Rechovot, IL;
Polycom, Inc., Pleasanton, CA (US);
Abstract
Methods and systems for presenting video images generated by multiple endpoints in a videoconference such that the displayed images have consistent appearance, for example consistent brightness levels are disclosed. Sampling methods and algorithms are used to calculate an appropriate amount of correction for each video image and the images are adjusted accordingly. Brightness correction may implement one or more brightness sampling and analyzing logical modules (BSAM) and one or more transforming logical module (TLM). The brightness matching methods may be implemented in centralized architecture, for example, as part of a multipoint control unit (MCU). Alternatively, the methods may be implemented using a distributed architecture.