Perceptual grouping of regular structures for automatic detection of man-made objects - Examples from IR and SAR.
Human observers perceive man-made objects in images from the visual spectrum domain
as well as in IR or SAR imagery. Mechanisms like perceptual grouping are crucial to
this capability. In this paper two examples for grouping in different image sources
are discussed. The first example is activity estimation in urban areas from thermal
IR images. The grouping of vehicles into rows is performed along the margins of the
roads. The other example is related to the detection of industrial buildings from
InSAR data. Such buildings often show salient regular patterns of strong scatterers
on their roofs. A previous segmentation which uses the intensity, height and coherence
information extracts building cues. Strong scatterers are filtered by a spot detector
and localized by a cluster formation. These scatterers are grouped in rows by a process
that uses the contours of the building cues as context.
Stilla U, Michaelsen E, Soergel U (2003)
Perceptual grouping of regular structures for automatic detection of man-made objects - Examples from IR and SAR.
IGARSS
[ Stilla.de/pub ]