抄録
For better understanding of the land-surface situation, the multi-temporal analysis algorithm for evaluating the land-cover change are newly proposed, based on the "pair-wise comparative strategy" of the satellite multi-spectral data. The proposed procedure for the multi-temporal analysis consists of the following steps :
(Step 1-2) Data preparation and Preprocessing of the geometric correction as well as radiometric normalization ;
(Step 3) For all comparative pairs of the satellite data observed at the different time, the dissimilarity image are produced by calculating the dissimilarity-measures for the TM-Band 2, Band 3 and Band 4, respectively. The Land-cover Change Detection maps (termed LCD map) are also generated by assigning those dissimilarity images to the blue, green and red image planes, respectively. These LCD maps are arranged on the pair-wise comparative table ;
(Step 4) Through the quantification method type-IV, the scatter-diagrams are also investigated with respect to the items corresponding to the observational time of the satellite data, and
(Step 5) Interpretation of the pair-wise comparative table.
By using those scatter-diagrams jointly with the pair-wise comparative table, the effective and efficient estimation on the land cover change could be achieved with respect to the monthly, yearly and the seasonal changes as well.
