Scale Detection and Region Extraction
from a Scale-Space Primal Sketch
Tony Lindeberg and Jan-Olof Eklundh
Technical report ISRN KTH/NA/P--90/13--SE.
Shortened version in Proc. 3rd International Conference on Computer Vision,
(Osaka, Japan), pages 416--426, Dec. 1990.
- A multi-scale representation of grey-level shape,
called scale-space primal sketch, which makes explicit both features
in scale-space and the relations
between features at different levels of scale.
A theory for extraction of significant image structure from
Applications to edge detection, histogram analysis and junction
classification demonstrating how the proposed method
can be used for guiding later stage processing.
The representation gives a qualitative description of the image structure
that allows for detection of stable scales and regions of interest in a
solely bottom-up data-driven way.
In other words, it generates coarse segmentation cues and can
be hence seen as preceding further
processing, which can then be properly tuned. We argue that
once such information is available many other
processing tasks can become much simpler.
Experiments on real imagery demonstrate that the proposed
theory gives perceptually intuitive results.
(Abstract and PostScript)