Frequency-flexible stochastic Gabor filter

Naoya Onizawa; Daisaku Katagiri; Kazumichi Matsumiya; Warren J. Gross; Takahiro Hanyu

doi:10.1109/ICDSP.2015.7251914

Frequency-flexible stochastic Gabor filter

Naoya Onizawa, Daisaku Katagiri, Kazumichi Matsumiya, Warren J. Gross, Takahiro Hanyu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This paper introduces an algorithm of a frequency flexible Gabor filter based on stochastic computation. The stochastic Gabor filter provides area-efficient hardware implementation compared to a traditional implementation, but a spacial frequency of the stochastic Gabor filter is restricted by the number of states in an up-down counter used in hardware. In the proposed algorithm, a frequency is determined by two parameters: the number of states and a scaling factor to an input signal. As the input-signal range is scaled down from a stochastic-signal range of [-1at1], a tentative frequency determined by the number of states is precisely controlled to synthesize a flexible frequency desired. The proposed stochastic Gabor filter is modelled and simulated in MATLAB that demonstrates a flexible frequency is synthesized, unlike the conventional method.

Original language	English
Title of host publication	2015 IEEE International Conference on Digital Signal Processing, DSP 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	458-462
Number of pages	5
ISBN (Electronic)	9781479980581, 9781479980581
DOIs	https://doi.org/10.1109/ICDSP.2015.7251914
Publication status	Published - 2015 Sep 9
Event	IEEE International Conference on Digital Signal Processing, DSP 2015 - Singapore, Singapore Duration: 2015 Jul 21 → 2015 Jul 24

Publication series

Name	International Conference on Digital Signal Processing, DSP
Volume	2015-September

Other

Other	IEEE International Conference on Digital Signal Processing, DSP 2015
Country	Singapore
City	Singapore
Period	15/7/21 → 15/7/24

ASJC Scopus subject areas

Signal Processing

Access to Document

10.1109/ICDSP.2015.7251914

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Onizawa, N., Katagiri, D., Matsumiya, K., Gross, W. J., & Hanyu, T. (2015). Frequency-flexible stochastic Gabor filter. In 2015 IEEE International Conference on Digital Signal Processing, DSP 2015 (pp. 458-462). [7251914] (International Conference on Digital Signal Processing, DSP; Vol. 2015-September). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2015.7251914

Frequency-flexible stochastic Gabor filter. / Onizawa, Naoya; Katagiri, Daisaku; Matsumiya, Kazumichi; Gross, Warren J.; Hanyu, Takahiro.

2015 IEEE International Conference on Digital Signal Processing, DSP 2015. Institute of Electrical and Electronics Engineers Inc., 2015. p. 458-462 7251914 (International Conference on Digital Signal Processing, DSP; Vol. 2015-September).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Onizawa, N, Katagiri, D, Matsumiya, K, Gross, WJ & Hanyu, T 2015, Frequency-flexible stochastic Gabor filter. in 2015 IEEE International Conference on Digital Signal Processing, DSP 2015., 7251914, International Conference on Digital Signal Processing, DSP, vol. 2015-September, Institute of Electrical and Electronics Engineers Inc., pp. 458-462, IEEE International Conference on Digital Signal Processing, DSP 2015, Singapore, Singapore, 15/7/21. https://doi.org/10.1109/ICDSP.2015.7251914

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