Method and apparatus for assessing the quality of a video signal during encoding or compressing of the video signal

US9077972B2 · kind B2 · utility

Assignee

• DEUTSCHE TELEKOM AG · DE

Inventors

• Savvas Argyropoulos · Berlin, DE
• Bernhard Feiten · Berlin, DE
• Marie-Neige Garcia · Berlin, DE
• Peter List · Bonn, DE
• Alexander Raake · Berlin, DE

Key dates

• Filing date: Jul 29, 2011
• Grant date: Jul 7, 2015
• Expiry date: Dec 1, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04N21/64723
• WIPO field: Audio-visual technology
• WIPO sector: Electrical engineering

Abstract

A method for assessing the quality of a video signal during encoding or compressing of the video signal includes: estimating the quality (Qcod) of the video signal using one or more parameters; and using at least one additional parameter to adjust the estimated video signal quality, wherein the at least one additional parameter includes the key-frame rate (kfr) of the video signal as a Group of Pictures (GOP)-length-related parameter. Adjustment of the estimated video signal quality is in accordance with the following equation:Qcod=(a1*kfr+a2)*exp(b*br)+c;