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Proceedings Paper

A twin central line projection model for asynchronous sampling line scanner satellite imagery
Author(s): Jianya Gong; Xingshu Hu; Fengkui Geng
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Paper Abstract

There exist two kinds of imaging modes for line scanner remote sensing satellite sensors: the first is synchronous imaging mode, and the second is called asynchronous imaging mode. For asynchronous imaging mode, the sampling speed of the sensor is lower than the satellite ground velocity. A twin central line projection model is developed for geometrically corrected asynchronous sampling pushbroom line scanner satellite imagery. A collinear equation is derived to model the relation between image space coordinate and the object space coordinate based on the principle of twin central line projection model. The collinear equation and its adjustment model for spatial resection are derived from the twin central line projection model to process EROS A1 1B imagery. The applicability of twin central line to asynchronous sampling pushbroom line scanner satellite imagery is proved through test computation based on simulated data.

Paper Details

Date Published: 8 August 2007
PDF: 11 pages
Proc. SPIE 6752, Geoinformatics 2007: Remotely Sensed Data and Information, 675217 (8 August 2007); doi: 10.1117/12.760670
Show Author Affiliations
Jianya Gong, Wuhan Univ. (China)
Xingshu Hu, Wuhan Univ. (China)
Fengkui Geng, Hainan Univ. (China)


Published in SPIE Proceedings Vol. 6752:
Geoinformatics 2007: Remotely Sensed Data and Information

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