THE CORRECTION OF LATERAL OFFSET WITHIN LANDSAT MSS IMAGERY

In this paper, a computer technique for correcting lateral offsets within Landsat MSS imagery is introduced. These offset lines were produced by an apparently random line-start problem in the Landsat MSS sensor. Two values are needed to correct the offset: (1)the numbers of the line containing offset, and (2)the number of pixels of offset in the lines. The determination of these values is time-consuming by visual inspection on the display. Therefore, a computer program which makes use of correla-tion techniques or Sequential Similarity Detection Algorithms (SSDA) has been deve-loped to calculate the above two values automatically, and then perform the required line shifts to correct the offset.