DocumentCode :
3266825
Title :
A practical approach to multiple super-resolution sprite generation
Author :
Ye, Getian ; Wang, Yang ; Xu, Jie ; Herman, Gunawan ; Zhang, Bang
Author_Institution :
Making Sense of Data Group, Nat. ICT Australia, Sydney, NSW
fYear :
2008
fDate :
8-10 Oct. 2008
Firstpage :
70
Lastpage :
75
Abstract :
The MPEG-4 video coding standard introduces a novel concept of sprite or mosaic that is a large image composed of pixels belonging to a video object visible throughout a video segment. The sprite captures spatio-temporal information in a very compact way and makes it possible for efficient object-based video compression. In this paper, we propose a practical approach to generating multiple super-resolution sprites for sprite coding. In order to construct super-resolution sprites and reduce coding cost, we firstly partition a video sequence into multiple independent sprites and group the images covering a similar scene into the same sprite. We then propose efficient and practical algorithms for cumulative global motion estimation and super-resolution sprite construction. Experiments with real video sequences show that the proposed approach outperforms the previous single sprite and multiple sprite techniques.
Keywords :
data compression; image resolution; image segmentation; image sequences; motion estimation; spatiotemporal phenomena; video coding; MPEG-4 video coding standard; global motion estimation; image construction; image mosaicing; multiple super-resolution sprite generation; object-based video compression; spatio-temporal information; video segment; video sequence; Costs; Image coding; Image resolution; Image segmentation; MPEG 4 Standard; Pixel; Sprites (computer); Video coding; Video compression; Video sequences;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia Signal Processing, 2008 IEEE 10th Workshop on
Conference_Location :
Cairns, Qld
Print_ISBN :
978-1-4244-2294-4
Electronic_ISBN :
978-1-4244-2295-1
Type :
conf
DOI :
10.1109/MMSP.2008.4665051
Filename :
4665051
Link To Document :
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