The South Australian Department for Environment and Heritage has recently conducted an independent accuracy assessment on ACRES Landsat 7 orthocorrected imagery. The Western Australian Department of Land Administration has also conducted two relative accuracy assessments on ACRES Landsat 7 orthocorrected imagery in the Kimberley region of Western Australia. The assessment results to date indicate that:
1) The absolute geometric accuracy of the orthocorrected imagery is significantly improved (RMS errors was + 13 metres).
2) Sub-pixel registration of multi-temporal Landsat ETM+ products is achievable with the use of Supplemental Control Points (SCPs) in orthocorrected product generation.