A CONTOUR-BASED PIXEL SWAPPING METHOD FOR SUPER-RESOLUTION MAPPING

A contour-based pixel swapping method for super-resolution mapping, which combines contouring and pixel swapping super-resolution mapping approaches, that seeks to exploit the positive features of contouring and pixel swapping to produce a method that is more accurate than each alone is proposed. The accuracy of super-resolution mapping with the individual and combined techniques is explored. When combined, the error with which objects of varying shape were represented was typically greatly reduced relative to that observed from the application of the methods individually. For example, the root mean square error in mapping the boundary of an aeroplane represented in relatively fine spatial resolution imagery decreased from 14.43m with contouring and 2.95m with pixel swapping to 2.18m when the approaches were combined.