Modeling of Loss-Distortion in Hierarchical Prediction Codecs

TitleModeling of Loss-Distortion in Hierarchical Prediction Codecs
Publication TypeConference Paper
Year of Publication2006
AuthorsMansour, H., P. Nasiopoulos, and V. Krishnamurthy
Conference NameSignal Processing and Information Technology, 2006 IEEE International Symposium on
Pagination536 -540
Date Publishedaug.
Keywordshierarchical prediction codecs, hierarchical prediction video decoder, hybrid video codecs, image motion analysis, image sequences, loss-distortion modeling, picture copy concealment strategy, SVC, video coding, video distortion models, video sequences

Existing video distortion models used for hybrid video codecs do not match the hierarchical prediction structure employed in SVC. In this paper, we derive a new video distortion model that captures the sensitivity to frame losses of a hierarchical prediction video decoder using the picture copy (PC) concealment strategy of SVC. Existing frameworks only cover non-scalable coders, and therefore, fall short of accurately modeling scalable coders due to the additional parameters that come into play. Performance evaluations show that our model closely approximates the loss-distortion of hierarchical coders for video sequences with different levels of motion, with exceptional performance in sequences with homogeneous levels of motion


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