Title:
DETERMINING QUALITY OF AN IMAGE OR A VIDEO USING A DISTORTION CLASSIFIER
Document Type and Number:
WIPO Patent Application WO/2011/143223
Kind Code:
A3
Abstract:
Techniques and structures are disclosed in which one or more distortion categories are identified for an image or video, and a quality of the image or video is determined based on the one or more distortion categories. The image or video may be of a natural scene, and may be of unknown provenance. Identifying a distortion category and/or determining a quality may be performed without any corresponding reference (e.g., undistorted) image or video. Identifying a distortion category may be performed using a distortion classifier. Quality may be determined with respect to a plurality of human opinion scores that correspond to a particular distortion category to which an image or video of unknown provenance is identified as belonging. Various statistical methods may be used in performing said identifying and said determining, including use of generalized Gaussian distribution density models and natural scene statistics.
Inventors:
BOVIK ALAN (US)
MOORTHY ANUSH (US)
MOORTHY ANUSH (US)
Application Number:
PCT/US2011/035930
Publication Date:
February 02, 2012
Filing Date:
May 10, 2011
Export Citation:
Assignee:
UNIV TEXAS (US)
BOVIK ALAN (US)
MOORTHY ANUSH (US)
BOVIK ALAN (US)
MOORTHY ANUSH (US)
International Classes:
G06T1/00; G06T3/00; G06T5/00; H04N1/387
Foreign References:
| US20090232409A1 | 2009-09-17 | |||
| US20080317358A1 | 2008-12-25 | |||
| US20050256743A1 | 2005-11-17 | |||
| US20060182361A1 | 2006-08-17 |
Attorney, Agent or Firm:
MEYERTONS, HOOD, KIVLIN, KOWERT & GOETZEL, P.C. (Dean M.P.O. Box 39, Austin Texas, US)
Download PDF: