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  • Research Article
  • Open Access

Cost-Effective Video Filtering Solution for Real-Time Vision Systems

EURASIP Journal on Advances in Signal Processing20052005:568069

https://doi.org/10.1155/ASP.2005.2026

  • Received: 23 December 2003
  • Published:

Abstract

This paper presents an efficient video filtering scheme and its implementation in a field-programmable logic device (FPLD). Since the proposed nonlinear, spatiotemporal filtering scheme is based on order statistics, its efficient implementation benefits from a bit-serial realization. The utilization of both the spatial and temporal correlation characteristics of the processed video significantly increases the computational demands on this solution, and thus, implementation becomes a significant challenge. Simulation studies reported in this paper indicate that the proposed pipelined bit-serial FPLD filtering solution can achieve speeds of up to 97.6 Mpixels/s and consumes 1700 to 2700 logic cells for the speed-optimized and area-optimized versions, respectively. Thus, the filter area represents only 6.6 to 10.5% of the Altera STRATIX EP1S25 device available on the Altera Stratix DSP evaluation board, which has been used to implement a prototype of the entire real-time vision system. As such, the proposed adaptive video filtering scheme is both practical and attractive for real-time machine vision and surveillance systems as well as conventional video and multimedia applications.

Keywords and phrases

  • VHDL implementation
  • FPLD
  • bit-serial approach
  • pipelined solution
  • video filtering and enhancement
  • nonlinear adaptive filter design

Authors’ Affiliations

(1)
Laboratoire Traitement du Signal et Instrumentation, Unité Mixte de Recherche CNRS 5516, Université Jean Monnet, 10 rue Barrouin, Saint-Etienne, 42000, France
(2)
Multimedia Laboratory, The Edward S. Rogers Sr. Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, ON, M5S 3G4, Canada

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