3 D Capabilities of SPOT 6
3 D Capabilities of SPOT 6
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SPOT 6 的 3D 功能
DOI：
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
M. Bernard
中科院分区：
文献类型：
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作者：
P. Nonin;D. Decluseau;L. Gabet;M. Bernard
On September 9th, 2012 a new optical satellite, SPOT 6, was successfully launched by ASTRIUM. SPOT 6 is the continuation of the SPOT series, operated since 1986. It will be followed in 2013 or early 2014 by SPOT 7 (twin). SPOT 6 provides 60km x 60km images at 1.5 meters. This very agile acquisition system is able to relocate very rapidly and to scan the earth in any direction. The agility of the system offers the ability to acquire multi viewing angle images of the same area during the same orbit. This capacity, from a mere stereoscopic pair up to multiple viewing images, allows to automatically extracting 3D information over significant land areas. The aim of the study is to validate and quantify the capacity of the SPOT 6 system to perform 3D extraction, and to derive elevation databases such as DEM or contour lines. The analysis will explore the advantages in terms of quality and automatism of using a triplet rather than 2 stereoscopic images. In the last years, automatic 3D processing of digital images became more popular and efficient. Thanks to aerial images and very high resolution satellite images, new methodologies have been implemented to improve the quality and accuracy of the automatic 3D processing. We propose to experiment the same type of approaches using SPOT 6 images to produce 3D database, always taking care of the cost-vs-performance trend. Different ground-truth sites with very accurate 3D database are used to quantify the quality of the 3D performance from SPOT 6. Our paper will briefly remind the basic characteristics of SPOT 6 imagery, and then expose the performance results we get from it, and the validation and verification methodology we derived from these tests.
