Journal
INTERNATIONAL JOURNAL OF REMOTE SENSING
Volume 27, Issue 22, Pages 4991-5001Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/01431160600658131
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The watershed transformation is a well-known powerful tool for automated image segmentation. However, it is often computationally expensive and can produce over-segmentation in situations of high gradient noise, quantity error and detailed texture. Here, a new method has been designed to overcome these inherent drawbacks. After pre-processing the imagery using a nonlinear filter in order to filter the noise, an optimized watershed transformation is applied to provide an initial segmentation result. Then, a multi-scale, multi-characteristic merging algorithm is used to refine the segmentation. Preliminary results show promise in term of both segmentation quality and computational efficiency.
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