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|Title:||Robust panorama from MPEG video|
|Keywords:||Motion estimation;Video signal processing;Image reconstruction;MPEG video|
|Citation:||Proceedings of IEEE International Conference on Multimedia and Expo, (ICME '03), 6-9 July 2003, 1: pp. 81 - 84, (2003)|
|Abstract:||A novel approach to image mosaicking from MPEG video is presented in this paper. The motion vectors in both P- and B-frames are used for global motion estimation. The bi-directional information in B-frames provides multiple routes to warp a frame to its previous anchor frame. A least median of squares based algorithm is adopted for robust motion estimation. In the case of a large proportion of outliers, we detect possible algorithm failure and perform re-estimation along a different route. Based on the motion parameters between consecutive frames, the static background panorama and dynamic foreground panorama are constructed from warped images over a whole video sequence.|
|Appears in Collections:||Dept of Computer Science Research Papers|
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