Correction of False Topographic Perception Phenomenon Based on Topographic Correction in Satellite Imagery.
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| Title: | Correction of False Topographic Perception Phenomenon Based on Topographic Correction in Satellite Imagery. |
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| Authors: | Zhu, Xinyu1, Sun, Mingwei2, Wang, Shugen2, Yu, Lei2, Chen, Qi2, Wang, Yue2 |
| Source: | IEEE Transactions on Geoscience & Remote Sensing. Jan2017, Vol. 55 Issue 1, p468-476. 9p. |
| Subjects: | Topographical surveying, Spectral imaging, Spatial analysis (Statistics), Remote-sensing images, Digital elevation models |
| Abstract: | Most sun-synchronous satellites acquire images when the illumination source is located in the southeast direction, which is contrary to human visual habits. Therefore, when observing such images, the false topographic perception phenomenon (FTPP) occurs, particularly in large-relief regions. FTPP should be corrected because it may induce misunderstandings of terrain features, thus affecting related decision making. Unlike most existing algorithms, an automatic algorithm focusing on altering the illumination direction is proposed on the basis of topographic correction. The purpose of the algorithm is to alter the illumination direction from SE to northwest. The original and FTPP-corrected images can be quantitatively connected by establishing the relationship between these two images after topographic correction by using the C model such that the formula for calculating the DN (Digital Number) value of the FTPP-corrected image can be derived. An online survey of 323 volunteers using two sets of test data demonstrates that the success rate of the topographic-correction-based approach is as high as 85%. In comparative trials, the proposed approach displays a relatively strong ability to preserve the spatial details and the spectral characteristics of the original image. [ABSTRACT FROM PUBLISHER] |
| Copyright of IEEE Transactions on Geoscience & Remote Sensing is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 120288917 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Correction of False Topographic Perception Phenomenon Based on Topographic Correction in Satellite Imagery. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Zhu%2C+Xinyu%22">Zhu, Xinyu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Sun%2C+Mingwei%22">Sun, Mingwei</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Shugen%22">Wang, Shugen</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yu%2C+Lei%22">Yu, Lei</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Chen%2C+Qi%22">Chen, Qi</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wang%2C+Yue%22">Wang, Yue</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Geoscience+%26+Remote+Sensing%22">IEEE Transactions on Geoscience & Remote Sensing</searchLink>. Jan2017, Vol. 55 Issue 1, p468-476. 9p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Topographical+surveying%22">Topographical surveying</searchLink><br /><searchLink fieldCode="DE" term="%22Spectral+imaging%22">Spectral imaging</searchLink><br /><searchLink fieldCode="DE" term="%22Spatial+analysis+%28Statistics%29%22">Spatial analysis (Statistics)</searchLink><br /><searchLink fieldCode="DE" term="%22Remote-sensing+images%22">Remote-sensing images</searchLink><br /><searchLink fieldCode="DE" term="%22Digital+elevation+models%22">Digital elevation models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Most sun-synchronous satellites acquire images when the illumination source is located in the southeast direction, which is contrary to human visual habits. Therefore, when observing such images, the false topographic perception phenomenon (FTPP) occurs, particularly in large-relief regions. FTPP should be corrected because it may induce misunderstandings of terrain features, thus affecting related decision making. Unlike most existing algorithms, an automatic algorithm focusing on altering the illumination direction is proposed on the basis of topographic correction. The purpose of the algorithm is to alter the illumination direction from SE to northwest. The original and FTPP-corrected images can be quantitatively connected by establishing the relationship between these two images after topographic correction by using the C model such that the formula for calculating the DN (Digital Number) value of the FTPP-corrected image can be derived. An online survey of 323 volunteers using two sets of test data demonstrates that the success rate of the topographic-correction-based approach is as high as 85%. In comparative trials, the proposed approach displays a relatively strong ability to preserve the spatial details and the spectral characteristics of the original image. [ABSTRACT FROM PUBLISHER] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of IEEE Transactions on Geoscience & Remote Sensing is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1109/TGRS.2016.2608980 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 9 StartPage: 468 Subjects: – SubjectFull: Topographical surveying Type: general – SubjectFull: Spectral imaging Type: general – SubjectFull: Spatial analysis (Statistics) Type: general – SubjectFull: Remote-sensing images Type: general – SubjectFull: Digital elevation models Type: general Titles: – TitleFull: Correction of False Topographic Perception Phenomenon Based on Topographic Correction in Satellite Imagery. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Zhu, Xinyu – PersonEntity: Name: NameFull: Sun, Mingwei – PersonEntity: Name: NameFull: Wang, Shugen – PersonEntity: Name: NameFull: Yu, Lei – PersonEntity: Name: NameFull: Chen, Qi – PersonEntity: Name: NameFull: Wang, Yue IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 01 Text: Jan2017 Type: published Y: 2017 Identifiers: – Type: issn-print Value: 01962892 Numbering: – Type: volume Value: 55 – Type: issue Value: 1 Titles: – TitleFull: IEEE Transactions on Geoscience & Remote Sensing Type: main |
| ResultId | 1 |
