On Ridges and Valleys
On Ridges and Valleys
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发表时间：
2000-09
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通讯作者：
Antonio M. López;D. Lloret
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作者：
Antonio M. López;D. Lloret
Ridges and valleys are earth's relief structures. They can have an imaging counterpart provided we model a digital image as a landscape by considering grey level values as height. These two dual entities have received comparatively little attention from the computer vision community with regard to others like edges or corners. In this paper, we first propose a taxonomy or classification of the several definitions of ridge and valley lines and review their implementation on discrete images. Then, we illustrate the application of one type of characterization, a creaseness measure, to solve several problems of image registration, where ridge and valley lines are taken as landmarks.
