A twin central line projection model for asynchronous sampling line scanner satellite imagery

Jianya Gong; Xingshu Hu; Fengkui Geng

doi:10.1117/12.760670

8 August 2007 A twin central line projection model for asynchronous sampling line scanner satellite imagery

Jianya Gong, Xingshu Hu, Fengkui Geng

Proceedings Volume 6752, Geoinformatics 2007: Remotely Sensed Data and Information; 675217 (2007) https://doi.org/10.1117/12.760670
Event: Geoinformatics 2007, 2007, Nanjing, China

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.

Citation Download Citation

Jianya Gong, Xingshu Hu, and Fengkui Geng "A twin central line projection model for asynchronous sampling line scanner satellite imagery", Proc. SPIE 6752, Geoinformatics 2007: Remotely Sensed Data and Information, 675217 (8 August 2007); https://doi.org/10.1117/12.760670

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