NDLI: An enhanced fast mode decision model for spatial enhancement layers in scalable video coding

Content Provider	Springer Nature Link
Author	Leuven, Sebastiaan Wallendael, Glenn Wolf, Koen Cock, Jan Lambert, Peter Walle, Rik
Copyright Year	2011
Abstract	Recently, the H.264/AVC standard has been extended to incorporate Scalable Video Coding (SVC). SVC offers the advantage of scalable (layered) coding, but has the disadvantage of a highly increased computational complexity at the encoder side when dealing with spatial scalability. To restrict the increase in required processing power, fast mode decision models for spatial enhancement layers have been proposed in literature. We propose a novel generic fast mode decision model for spatial enhancement layers for both P and B frames based on both the quantization of the enhancement layer and the correlation between the macroblock type in the enhancement layer and the co-located macroblock in the reference layer. In this paper, an evaluation of the proposed model and comparison with a state-of-the-art model is given. Results show that the proposed technique performs exceptionally well for spatial scalability. For both dyadic and non-dyadic spatial scalability, we achieve an average time saving of 75%, while only a slight bit rate increase of 2.23% and a minor PSNR decrease of 0.46 dB are measured. Compared with state of the art techniques, we further halve the complexity while having comparable rate-distortion results.
Starting Page	215
Ending Page	237
Page Count	23
File Format	PDF
ISSN	13807501
Journal	Multimedia Tools and Applications
Volume Number	58
Issue Number	1
e-ISSN	15737721
Language	English
Publisher	Springer US
Publisher Date	2011-02-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	H.264 Scalable video coding Fast mode decision Spatial scalability Macroblock type analysis Data Structures, Cryptology and Information Theory Computer Communication Networks Special Purpose and Application-Based Systems Multimedia Information Systems
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software Media Technology

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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