NDLI: Spread and Iterative Search: A High Quality Motion Estimation Algorithm for High Definition Videos and Its VLSI Design

Content Provider	IEEE Xplore Digital Library
Author	Sanchez, G. Agostini, L. Sampaio, F. Porto, M. Bampi, S.
Copyright Year	2012
Abstract	This paper presents the Spread and Iterative Search (S&IS) motion estimation algorithm, which uses a random spread evaluation together with a central iterative evaluation to avoid local minima falls and to increase the image quality for high definition videos. Considering Full HD videos, S&IS reached an average PSNR gain of 1.41dB when compared to Diamond Search (DS), with an increase of about four times in the number of evaluated blocks. When compared to Full Search (FS), the S&IS achieved an average PSNR loss of 1.56 dB, evaluating 73 times less blocks than FS. An efficient architecture for the S&IS algorithm is also presented in this paper. The architecture was designed targeting in real time processing (30 frames per seconds) for QFHD videos (3840×2160 pixels). The architecture was described in VHDL and synthesized for and Alter a Stratix 4 FPGA and for ST90nm standard cells technology. Booth syntheses show that the architecture is able to process QFHD frames in real time. The standard cells version is able to reach also a good trade-off among area, memory and power consumption, processing QFHD videos with 62.2 mW.
Starting Page	1079
Ending Page	1084
File Size	382083
Page Count	6
File Format	PDF
ISBN	9781467316590
ISSN	19457871
DOI	10.1109/ICME.2012.53
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-07-09
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High definition video Computer architecture Videos Real time systems Algorithm design and analysis Complexity theory Encoding Random Motion Estimation Video Coding
Content Type	Text
Resource Type	Article

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