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Proceedings Paper

On the differential planar distance measurement of HRSI images
Author(s): Jianwei Tao; Qiming Qin
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Paper Abstract

This paper presented a method for precisely computing the ground 2D size of any pixel in a satellite image received by a push-broom linear array sensor, and further calculating the planar distance between any two pixels in the image. The algorithm is deduced from the imaging principle of linear array sensors, with consideration of the arc of the earth's surface, the height of ground, and the light refraction caused by the air. The author used the method to measure the ground planar distance between two pixels in a Worldview-1 image, compared with the site measurement, the errors were less than the size of pixel. As the computation is based on the instant position and orientation of the sensor, the method is useful for local small area measuring and real time measuring.

Paper Details

Date Published: 28 September 2009
PDF: 8 pages
Proc. SPIE 7477, Image and Signal Processing for Remote Sensing XV, 747713 (28 September 2009); doi: 10.1117/12.830190
Show Author Affiliations
Jianwei Tao, Peking Univ. (China)
Qiming Qin, Peking Univ. (China)


Published in SPIE Proceedings Vol. 7477:
Image and Signal Processing for Remote Sensing XV
Lorenzo Bruzzone; Claudia Notarnicola; Francesco Posa, Editor(s)

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