NDLI: Fully Adaptive Performance Scalable Block-based Motion Estimation

Content Provider	IEEE Xplore Digital Library
Author	Sorwar, G. Murshed, M. Dooley, L.
Copyright Year	2005
Description	Author affiliation: Sch. of Multimedia & IT, Southern Cross Univ., Coffs Harbour, NSW (Sorwar, G.)
Abstract	Trading-off computational complexity and quality is an important performance constraint for real time application of motion estimation algorithm. To address this issue, an adaptive-centre diamond search distance dependent thresholding search (ADSDTS) algorithm has been proposed for motion estimation in video coding applications. ADSDTS encompassed both the full search (FS) as well as fast searching modes, with different threshold settings providing various quality-of-service levels. The main drawback of ADSDTS was that the threshold value was manually defined. In this paper, the ADSDTS algorithm has been extended to a fully adaptive centre-prediction diamond-search distance-dependent thresholding search (FACDDTS), a key feature of which is the automatic adaptation of the threshold using the desired target and the content from the actual video sequence, to achieve a guaranteed level of quality or processing complexity. Experimental results confirm the performance of the FACDDTS algorithm in achieving this objective with minimal additional computational cost
Starting Page	1145
Ending Page	1149
File Size	3715101
Page Count	5
File Format	PDF
ISBN	0780392833
DOI	10.1109/ICICS.2005.1689233
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-06
Publisher Place	Thailand
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion estimation Video coding Computational complexity Video sequences Quality of service Australia Computational efficiency Image quality Video compression Algorithm design and analysis distance-dependent thresholding search Adaptive block-motion estimation video coding
Content Type	Text
Resource Type	Article

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