Referenced Items are not available for this document.
Most step-edge detectors are designed to detect locally straight edge-segments which can be isolated within the operator kernel. While it can easily be demonstrated that a cross-sectional support of at least 4 pixels is required for the unambiguous detection of a stepedge, edges which cannot be isolated within windows having this width can nevertheless be resolved. This is achieved by preceding the stepedge detection process by image-intensity interpolation. Although resolution can be improved in this fashion, the step-edge position and intensity estimates thus determined may be subject to systematic biases. Also, the higher resolution performance is accompanied by lower robustness to noise.
Published in:
Pattern Analysis and Machine Intelligence, IEEE Transactions on
(Volume:PAMI-9
,
Issue:
3
)
Date of Publication: May 1987
- Page(s):
- 446 - 451
- ISSN :
- 0162-8828
- Digital Object Identifier :
- 10.1109/TPAMI.1987.4767926
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 27 January 2009
- Issue Date :
- May 1987
- Sponsored by :
- IEEE Computer Society
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