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Title: Gallium arsenide processing elements for motion estimation full-search algorithm
Authors: López Feliciano, José Francisco 
Cortés, P.
López, S. 
Sarmiento, R. 
UNESCO Clasification: 3307 Tecnología electrónica
Keywords: Motion estimation
Image coding
Diamond search
Issue Date: 2001
Publisher: 0277-786X
Journal: Proceedings of SPIE - The International Society for Optical Engineering 
Conference: Conference on Electronics and Structures for MEMS II 
Abstract: The Block-Matching motion estimation algorithm (BMA) is the most popular method for motion-compensated coding of image sequence. Among the several possible searching methods to compute this algorithm, the full-search BMA (FBMA) has obtained great interest from the scientific community due to its regularity, optimal solution and low control overhead which simplifies its VLSI realization. On the other hand, its main drawback is the demand of an enormous amount of computation. There are different ways of overcoming this factor, being the use of advanced technologies, such as Gallium Arsenide (GaAs), the one adopted in this article together with different techniques to reduce area overhead. By exploiting GaAs properties, improvements can be obtained in the implementation of feasible systems for real time video compression architectures. Different primitives used in the implementation of processing elements (PE) for a FBMA scheme are presented. As a result, PEs running at 270 MHz have been developed in order to study its functionality and performance. From these results, an implementation for MPEG applications is proposed, leading to an architecture running at 145 MHz with a power dissipation of 3.48 W and an area of 11.5 mm2.
ISBN: 0-8194-4321-2
ISSN: 0277-786X
DOI: 10.1117/12.449139
Source: Proceedings of SPIE - The International Society for Optical Engineering[ISSN 0277-786X],v. 4591, p. 101-112
Appears in Collections:Actas de congresos
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