Camera motion-constraint video codec selection

—In recent years advanced video codecs have been developed, such as standardized in MPEG-4. The latest video codec H.264/AVC provides compression performance superior to previous standards, but is based on the same basic motioncompensated-DCT architecture. However, for certain types of video, it has been shown that it is possible to outperform the H.264/AVC using an object-based video codec. Towards a general-purpose object-based video coding system we present an automated approach to separate a video sequences into subsequences regarding its camera motion type. Then, the subsequences are coded either with an object-based codec or the common H.264/AVC. Applying different video codecs for different kinds of camera motion, we achieve a higher overall coding gain for the video sequence. In first experimental evaluations, we demonstrate the excellence performance of this approach on two test sequences.

• Type: Conference
• Year: 2008
• Where: MMSP
• Authors: Andreas Krutz, Sebastian Knorr, Matthias Kunter, Thomas Sikora
• Keywords: MMSP 2008, Multimedia, Object-based Video, Object-based Video Codec, Video Codecs