An evaluation of ridge extraction methods for portal imaging
2000
In this paper an existing ridge detector based on the Hessian tensor and a new one based on the structure tensor are evaluated for use in portal/simulator imaging. Tensor smoothing is introduced as a scaling parameter. By changing this scale (as opposed to the image scale) the detectors can be tuned to suppress spurious ridges without moving them. Desirable ridge detector properties for portal/simulator imaging are described and the ridge definitions are tested accordingly. Experiments show that our new ridge detector outperformed the existing one in simulator/portal image matching.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
11
References
7
Citations
NaN
KQI