An Efficient FPGA Implementation of Gaussian Mixture Models-Based Classifier Using Distributed Arithmetic

Minghua Shi, A. Bermak, S. Chandrasekaran, A. Amira

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

Gaussian Mixture Models (GMM)-based classifiers have shown increased attention in many pattern recognition applications. Improved performances have been demonstrated in many applications but using such classifiers can require large storage and complex processing units due to exponential calculations and large number of coefficients involved. This poses a serious problem for portable real-time pattern recognition applications. In this paper, first the performance of GMM and its hardware complexity are analyzed and compared with a number of benchmark algorithms. Next, an efficient digital hardware implementation based on Distributed Arithmetic (DA) is proposed. A novel exponential calculation circuit based on linear piecewise approximation is also developed to reduce hardware complexity. Implementation is carried out on the Celoxica-RC1000 board equipped with the Virtex-E FPGA. Maximum optimization has been achieved by means of manual placement and routing in order to achieve a compact core footprint. A detailed evaluation of the performance metrics of the GMM core is also presented.

Original languageEnglish
Title of host publicationICECS 2006 - 13th IEEE International Conference on Electronics, Circuits and Systems
Pages1276-1279
Number of pages4
DOIs
Publication statusPublished - 1 Dec 2006
EventICECS 2006 - 13th IEEE International Conference on Electronics, Circuits and Systems - Nice, France
Duration: 10 Dec 200613 Dec 2006

Publication series

NameProceedings of the IEEE International Conference on Electronics, Circuits, and Systems

Other

OtherICECS 2006 - 13th IEEE International Conference on Electronics, Circuits and Systems
CountryFrance
CityNice
Period10/12/0613/12/06

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Shi, M., Bermak, A., Chandrasekaran, S., & Amira, A. (2006). An Efficient FPGA Implementation of Gaussian Mixture Models-Based Classifier Using Distributed Arithmetic. In ICECS 2006 - 13th IEEE International Conference on Electronics, Circuits and Systems (pp. 1276-1279). [4263607] (Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems). https://doi.org/10.1109/ICECS.2006.379695