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Sensors 2016, 16(12), 2008; doi:10.3390/s16122008

An Alternative Approach for Registration of
High-Resolution Satellite Optical Imagery and ICESat Laser Altimetry Data

1,2,* , 1
,
1,2,* , 1,2
,
1,2
and
1,2
1
College of Surveying and Geo-informatics, Tongji University, 1239 Siping Road, Shanghai 200092, China
2
Center for Spatial Information Science and Sustainable Development Applications, Tongji University, 1239 Siping Road, Shanghai 200092, China
*
Authors to whom correspondence should be addressed.
Received: 25 September 2016 / Revised: 22 November 2016 / Accepted: 24 November 2016 / Published: 27 November 2016
(This article belongs to the Section Remote Sensors)
View Full-Text   |   Download PDF [9042 KB, uploaded 29 November 2016]   |  

Abstract

Satellite optical images and altimetry data are two major data sources used in Antarctic research. The integration use of these two datasets is expected to provide more accurate and higher quality products, during which data registration is the first issue that needs to be solved. This paper presents an alternative approach for the registration of high-resolution satellite optical images and ICESat (Ice, Cloud, and land Elevation Satellite) laser altimetry data. Due to the sparse distribution characteristic of the ICESat laser point data, it is difficult and even impossible to find same-type conjugate features between ICESat data and satellite optical images. The method is implemented in a direct way to correct the point-to-line inconsistency in image space through 2D transformation between the projected terrain feature points and the corresponding 2D image lines, which is simpler than discrepancy correction in object space that requires stereo images for 3D model construction, and easier than the indirect way of image orientation correction via photogrammetric bundle adjustment. The correction parameters are further incorporated into imaging model through RPCs (Rational Polynomial Coefficients) generation/regeneration for the convenience of photogrammetric applications. The experimental results by using the ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) images and ZY-3 (Ziyuan-3 satellite) images for registration with ICESat data showed that sub-pixel level registration accuracies were achieved after registration, which have validated the feasibility and effectiveness of the presented approach. View Full-Text
Keywords: Antarctica; ASTER; ZY-3; ICESat; feature point; feature line; registration Antarctica; ASTER; ZY-3; ICESat; feature point; feature line; registration
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Liu, S.; Lv, Y.; Tong, X.; Xie, H.; Liu, J.; Chen, L. An Alternative Approach for Registration of
High-Resolution Satellite Optical Imagery and ICESat Laser Altimetry Data. Sensors 2016, 16, 2008.

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