DISTORTION/QUALITY MEASUREMENT

摘要

Various implementations address distortion and quality measurements. Certain implementations relate to distortions resulting in a freeze-with-skip and/or a freeze-without-skip. In one implementation, a pause term provides an indication of distortion associated with a pause arising from not displaying one or more consecutive pictures that are not to be displayed. A motion term provides an indication of distortion associated with a related change in motion. A combined indicator is based on an addition of the pause term and the motion term. In another particular implementation, a first indicator indicates distortion across one or more types of distortive effects that results from not displaying a first set of pictures. A second indicator indicates corresponding distortion with respect to a second set of pictures. The first indicator and the second indicator are combined in a non-linear manner.

主权项

1. A method comprising:
accessing information indicating that one or more consecutive pictures from a video sequence are not to be displayed; determining a pause term indicating an amount of distortion associated with a pause arising from not displaying the one or more consecutive pictures that are not to be displayed; determining a motion term indicating an amount of distortion associated with a change in motion arising from not displaying the one or more consecutive pictures that are not to be displayed, wherein the change in motion is one of a jump in motion and a stop in motion, the motion term indicating an amount of distortion arising from the jump in motion occurring from displaying another picture from the video sequence as the next picture displayed after displaying the substantially common picture when the change in motion is the jump in motion, and the motion term indicating an amount of distortion arising from the stop in motion occurring from displaying the substantially common picture during the display time rather than displaying the one or more consecutive pictures that are not to be displayed if the motion is the stop in motion; and determining a combined indicator of an amount of distortion based on an addition of the pause term and the motion term.