Title:
VIDEO ALIGNMENT AND CALIBRATION FOR VIDEO QUALITY MEASUREMENT
Document Type and Number:
WIPO Patent Application WO/2011/088204
Kind Code:
A4
Abstract:
Video alignment and calibration, which is needed for video quality measurement in full-reference mode, is performed continuously on the videos being measured to account for alignment parameters that may change over time. With this technique, the quality of video files and/or live video streams can be measured in full-reference mode in real-time. During video alignment, the temporal and spatial offsets, as well as any spatial, luminance or color transformations between the two videos are measured; during video calibration, the video frames are adjusted for these offsets and transformations so that the video quality can be measured correctly.
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Inventors:
WINKLER STEFAN (US)
Application Number:
PCT/US2011/021118
Publication Date:
December 29, 2011
Filing Date:
January 13, 2011
Export Citation:
Assignee:
CHEETAH TECHNOLOGIES L P (US)
WINKLER STEFAN (US)
WINKLER STEFAN (US)
International Classes:
H04N17/00
Attorney, Agent or Firm:
KIM, Frederick, D. (L.L.P.3040 Post Oak Blvd., Suite 150, Houston Texas, US)
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