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

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.<
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