Spatial Resolution Improvement Of TM Thermal Band Data

Victor T. Tom; Mark J. Carlotto; Daniel K. Scholten

doi:10.1117/12.944886

4 December 1984 Spatial Resolution Improvement Of TM Thermal Band Data

Victor T. Tom, Mark J. Carlotto, Daniel K. Scholten

Proceedings Volume 0504, Applications of Digital Image Processing VII; (1984) https://doi.org/10.1117/12.944886
Event: 28th Annual Technical Symposium, 1984, San Diego, United States

Abstract

A new image enhancement technique has been applied to enhance LANDSAT-4 Thematic Mapper (TM) thermal infrared (IR) imagery, and has improved its effective ground resolution from 120 meters to 30 meters. The technique is based on an adaptive multi-band least mean squares (LMS) method for computing an optimal image estimate from reference images, and a frequency domain replacement step. The approach relies on the assumption that at a sufficiently small resolution, registered TM imagery data is locally correlated across the bands. Using the local correlation property, visible and IR reference bands are used to predict the thermal IR image data. The prediction estimate is then used to augment the spatial high frequency information in the original thermal data. Preliminary experiments enhancing 120 meter IR imagery (simulated degradation) to 30 meter resolution show that the rms error can be reduced by 80% in high edge detail regions.

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Victor T. Tom, Mark J. Carlotto, and Daniel K. Scholten "Spatial Resolution Improvement Of TM Thermal Band Data", Proc. SPIE 0504, Applications of Digital Image Processing VII, (4 December 1984); https://doi.org/10.1117/12.944886

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