ROBUST ESTIMATION APPLIED TO SURFACE MATCHING

As adjustments of increasingly large data sets are undertaken, the nee d for more efficient error detection procedures will become necessary (Pilgrim, 1991).Robust estimation is a relatively recent development i n statistical analysis, and offers an alternative to conventional erro r detection procedures. In this paper robust estimation will be define and its advantages over conventional error detection procedures given . A unique adaptive robust procedure will be developed for detecting s urface differences between two large digital elevation models of an ob ject which have been obtained at different epochs.