DTM generation from a stereo pair acquired by the China–Brazilian Earth Resources Satellite (CBERS-2) and quality control of the altimetric information

DTM generation from a stereo pair acquired by the China–Brazilian Earth Resources Satellite (CBERS-2) and quality control of the altimetric information

The CBERS (China–Brazilian Earth Resources Satellite) program comprised a bilateral collaboration between Brazil and China for the development, construction and launch of at least two remote sensing satellites on a sun-synchronous, 778 km orbit, carrying onboard three imaging systems (High Resolutio...

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Bibliographic Details
Published in:International journal of remote sensing Vol. 32; no. 16; pp. 4683 - 4694
Main Authors: Zanardi, Rafael P, Rolim, Silvia B. A, De Souza, Sérgio F, Maranhão, Marcelo R. A, De Souza Filho, Carlos R
Format: Journal Article
Language:English
Published: Abingdon Taylor & Francis 01-01-2011
Subjects:
Accuracy
Altimeters
Animal, plant and microbial ecology
Applied geophysics
Biological and medical sciences
Brazil
Digital
Earth resources
Earth sciences
Earth, ocean, space
Exact sciences and technology
Fundamental and applied biological sciences. Psychology
General aspects. Techniques
image analysis
Internal geophysics
photogrammetry
quality control
remote sensing
Satellites
Teledetection and vegetation maps
Brazil
China
South America
Far East
Asia
satellites
development
data
quality controls
Imager
resources
remote sensing
Image
Information
Sun
Earth
Field
Synchronous
Generation
CCD camera
2003
Cooperation
techniques
digital terrain models
programs
Multispectral scanner
Structure
1999
high resolution
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Summary:The CBERS (China–Brazilian Earth Resources Satellite) program comprised a bilateral collaboration between Brazil and China for the development, construction and launch of at least two remote sensing satellites on a sun-synchronous, 778 km orbit, carrying onboard three imaging systems (High Resolution Charge Coupled Device (HR-CCD) Camera; infrared multispectral scanner IRMSS and wide field imager (WFI)). CBERS-1 and CBERS-2 were launched in October 1999 and October 2003, respectively, and acquired data using a similar technical structure, space mission and payload. The CCD camera provides images with 113 km swath, 20 m spatial resolution and has a sideways pointing capability of ±32˚, which makes possible the acquisition of stereoscopic images. This research focused on the extraction of altimetric information from a stereo pair acquired by the CBERS-2’s HR-CCD Camera, using digital photogrammetry techniques. Additionally, a quantitative precision and accuracy analysis of the altimetric information was carried out. Tests showed a root mean square error (RMSE) value of 38 m in the computed digital terrain model (DTM) against test points extracted from existing elevation data. The correction of such bias decreased the RMSE to 27 m. Considering Brazilian Cartographic Accuracy Standards (BCAS), this altimetric information can be used for Class A cartographic documents at scales up to 1:250 000.
Bibliography:http://dx.doi.org/10.1080/01431161.2010.508880
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1366-5901
0143-1161
1366-5901
DOI:10.1080/01431161.2010.508880