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Content Provider | IET Digital Library |
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Author | Huang, Shuang Chen, Sheng Bo Zhang, Yuan Zhi |
Abstract | Locations used to validate extraction results from remote sensing images are typically ground rock samples. However, remotely sensed image pixels are 30 m2 with mixing spectra. Rock samples cannot fully represent extraction results on an image. Here, alteration information associated with the Águas Claras, Brazil iron deposit was analysed using a Landsat Enhanced Thematic Mapper plus (ETM+), a Terra Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Hyperion data, all with 30 m resolution. With improvements in spectral resolution, extracted results have changed from the alteration information to altered rocks and minerals. The accuracy of alteration information has improved continuously as data extracted from these sources verify one another. Minerals extracted using Hyperion corresponded to altered assemblages identified from ASTER. Both were consistent with alteration information extracted from ETM+ at the same location. Alteration information extracted from three remote images were located within ore formations, and controlled by the north-east trending faults and matched well with known deposits. Information extraction based on the integrated application of multi-source remote sensing data could compensate for deficiencies in using single data. These results can verify one another to improve data reliability particularly in the areas inaccessible and lacking sufficient field confirmation. |
Starting Page | 355 |
Ending Page | 364 |
Page Count | 10 |
ISSN | 17519659 |
Volume Number | 13 |
e-ISSN | 17519667 |
Issue Number | Issue 2, Feb (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-ipr/13/2 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2018.5026 |
Journal | IET Image Processing |
Publisher Date | 2018-09-06 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Alteration Information Altered Mineral Information Altered Rocks Asia Brazil Iron Deposit Computer Vision And Image Processing Technique Data And Information; Acquisition, Processing, Storage And Dissemination in Geophysics ETM+/ASTER/Hyperion Data Geography And Cartography Computing Geophysical Aspects of Geology And Mineralogy Geophysical Image Processing Ground Rock Sample Hydroxyl Information Extraction Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Iron Iron Oxide/hydroxide Minerals Landsat Enhanced Thematic Mapper Plus Mineral Exploration Mineral Extraction Result Minerals Multisource Remote Sensing Data North-east Trending Fault Optical, Image And Video Signal Processing Remotely Sensed Image Pixel Rock Sample Verification Data Rocks Size 30.0 M South America Spectral Resolution Terra Advanced Spaceborne Thermal Emission And Reflection Radiometer Terrain Mapping Águas Claras Iron Ore |
Content Type | Text |
Resource Type | Article |
Subject | Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software |
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