Fast and Robust Sprite Generation for MPEG-4 Video Coding

Authors:
Yan Lu;Wen Gao;Feng Wu
Affiliations:
-;-;-
Venue:
PCM '01 Proceedings of the Second IEEE Pacific Rim Conference on Multimedia: Advances in Multimedia Information Processing
Year:
2001

Citing 4
Cited 1

Efficient, robust, and fast global motion estimation for video coding

IEEE Transactions on Image Processing
The MPEG-4 video standard verification model

IEEE Transactions on Circuits and Systems for Video Technology
Long-term global motion estimation and its application for sprite coding, content description, and segmentation

IEEE Transactions on Circuits and Systems for Video Technology
Sprite generation and coding in multiview image sequences

IEEE Transactions on Circuits and Systems for Video Technology

Sprite generation using sprite fusion

ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)

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Abstract

This paper presents a fast and robust sprite generation algorithm for MPEG-4 video coding. Our contributions consist of two aspects. Firstly, a fast and robust Global Motion Estimation (GME) algorithm is proposed here. Spatial and temporal feature point selection schemes are incorporated into the hierarchical GME in order to speed up it. Experimental results demonstrate our method is up to seven times faster than the traditional one in MPEG-4 video verification model, and meanwhile the accuracy is slightly improved. Secondly, a sprite generation scheme with some novel techniques is developed. Rough image segmentation is also introduced for the purpose of image blending in sprite generation. The proposed algorithm can significantly improve the visual quality of the generated sprite image and the reconstructed background object in video coding. Furthermore, the proposed GME and sprite generation algorithms can be used for both frame-based and object-based video coding.