Real-time textural edge detection by incoherent spatial Gaussian bandpass filtering

Author

Park, Jinwoo ; Poon, Ting-chung

Author_Institution

Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

26

Issue

6

fYear

1988

fDate

11/1/1988 12:00:00 AM

Firstpage

839

Lastpage

849

Abstract

A technique for textural edge detection using an acoustooptic two-pupil heterodyne scanning system is proposed. A textural region is modeled as a frequency-modulated tonal domain. Boundary extraction between two textures is discussed based on an extension of tonal edge detection by bandpass filtering in the frequency domain. The textural edge detection can be achieved optically by using two offset Gaussian pupils in the two-pupil scanning system. Its performance is discussed along with the experimental results

Keywords

acousto-optical devices; band-pass filters; computerised pattern recognition; computerised picture processing; frequency modulation; geophysical techniques; geophysics computing; remote sensing; acoustooptic two-pupil heterodyne scanning system; boundary extraction; computerised image processing; frequency-modulated tonal domain; incoherent spatial Gaussian bandpass filtering; land surface; pattern recognition; real time; remote sensing technique; textural edge detection; Band pass filters; Filtering; Frequency domain analysis; Frequency modulation; Image edge detection; Image recognition; Image segmentation; Optical filters; Optical mixing; Optical modulation;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.7715

Filename

7715