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Through-Wall Imaging With UWB Radar System - KEMT FEI TUKE

Through-Wall Imaging With UWB Radar System - KEMT FEI TUKE

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4.3 Highlighting of a Building Contours 75<br />

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Z<br />

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2<br />

1<br />

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2<br />

Detected edges in Hough space<br />

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a)<br />

Filtered peaks in Hough space<br />

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b)<br />

Highlighted walls of scanned building<br />

c)<br />

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HOUGH<br />

TRANSFORM<br />

FILTERING IN<br />

HOUGH SPACE<br />

INVERSE<br />

HOUGH<br />

TRANSFORM<br />

Fig. 4.3.8: Steps of highlighting the building walls in the scanned image, part 2. a)<br />

The Hough Transform performed on the detected edges. b) The peaks in Hough<br />

space filtered by a sharp window function. c) The highlighted walls drawn over<br />

the scanned image obtained by Inverse Hough Transform.

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