Title :
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
fDate :
11/1/1988 12:00:00 AM
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;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
