Investigation of Alternative Iteration Schemes for the IR-MAD Algorithm |
Morton John Canty, Allan Aasbjerg Nielsen
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| Abstract | The iteratively re-weighted multivariate alteration detection (IR-MAD) transformation is proving to be very successful for multispectral change detection and automatic radiometric normalization applications in remote sensing. Various alternatives exist in the way in which the weights (no-change probabilities) are calculated during the iteration procedure. These alternatives are compared quantitatively on the basis of multispectral imagery from different sensors under a range of ground cover conditions exhibiting wide variations in the amount of change present, as well as with a partially artificial data set simulating truly time-invariant observations. A best re-weighting procedure is recommended. |
| Keywords | change detection, canonical correlations, radiometric normalization, IR-MAD |
| Type | Conference paper [With referee] |
| Conference | Proceedings SPIE Europe Remote Sensing Conference |
| Year | 2007 Month September Vol. 6748 No. 8 |
| Address | Florence, Italy |
| Electronic version(s) | [pdf] |
| BibTeX data | [bibtex] |
| IMM Group(s) | Image Analysis & Computer Graphics, Geoinformatics |