Terrain elevation measurement from ALOS/PRISM stereographic images

Kiyonari Fukue; Ryuji Matsuoka; Haruhisa Shimoda; Toshibumi Sakata

doi:10.1117/12.417123

9 February 2001 Terrain elevation measurement from ALOS/PRISM stereographic images

Kiyonari Fukue, Ryuji Matsuoka, Haruhisa Shimoda, Toshibumi Sakata

Proceedings Volume 4169, Sensors, Systems, and Next-Generation Satellites IV; (2001) https://doi.org/10.1117/12.417123
Event: Europto Remote Sensing, 2000, Barcelona, Spain

Abstract

12 PRISM, a panchromatic stereomatic sensor with 2.5m resolution, is planned to be launched in 2003. Because observing data rate of PRISM is very high, lossy data compression will be applied on the board satellite in order to decrease the downlink data rate to ground receiving stations. The object of this study is to evaluate influences of the lossy data compression, atmospheric effects and S/N of the sensor for terrain elevation measurement. As the results, the following conclusions were given. Firstly, low S/N increases mean elevation error under the restriction that forward/backward viewing vectors converge within two pixels. Secondly, data compression and turbid atmosphere decrease the mean elevation error, preferably. Thirdly, data compression ratio of 1/6 is recommended in practical operation of PRISM. In this case, mean elevation error less than or equal to 3m can be achieved without relation of atmospheric condition and S/N.

Citation Download Citation

Kiyonari Fukue, Ryuji Matsuoka, Haruhisa Shimoda, and Toshibumi Sakata "Terrain elevation measurement from ALOS/PRISM stereographic images", Proc. SPIE 4169, Sensors, Systems, and Next-Generation Satellites IV, (9 February 2001); https://doi.org/10.1117/12.417123

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