Phone Keys Recognition Based on Multi-Channel Gabor Filter

Author

Yao, Jianmin ; Chen, Zhilong ; Xin, Qi ; Lin, Xiaojie ; Guo, Tailiang

Author_Institution

Coll. of Phys. & Inf. Eng., Fuzhou Univ., Fuzhou, China

fYear

2011

fDate

16-18 May 2011

Firstpage

1

Lastpage

3

Abstract

Multi-channel Gabor filter based target recognition method is proposed in this paper for phone key auto-detection. The target image is filtered with a multi-frequency-angle bank and then local energy maxima are extracted as feature set. To reduce the computation caused by the angle difference, a method of estimating the rotation angle is proposed based on length width ratio determination of the target outer frame, which leading to high efficiency. The experiments show that the recognition degree of the proposed algorithm is more than 90% and the false accept rate is below 1%.

Keywords

Gabor filters; feature extraction; image recognition; object detection; optical filters; angle difference; false accept rate; image filtering; length-width ratio determination; local energy maxima; multichannel Gabor filter; multifrequency-angle bank; phone key autodetection; phone key recognition; rotation angle; target recognition method; Estimation; Feature extraction; Filter banks; Filtering algorithms; Gabor filters; Optical filters; Target recognition;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronics (SOPO), 2011 Symposium on

Conference_Location

Wuhan

ISSN

2156-8464

Print_ISBN

978-1-4244-6555-2

Type

conf

DOI

10.1109/SOPO.2011.5780380

Filename

5780380