Aerial Images Rectification Using Non-parametric Approach
Geometric distortions caused by different sources usually are accumulated and not present singly in a remotely sensed image. In addition, the effects of geometric distortions are found unequally in the entire image. Hence, aerial images should be rectified before proceed with subsequent images anal...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Journal of Convergence
2013
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/5187/ http://ir.unimas.my/id/eprint/5187/1/aerial%20images%20rectification%20using%20non%20-parametic%20%28abstract%29.pdf |
| _version_ | 1848835603541524480 |
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| author | Lee, Hung Liew Beng, Yong Lee Yin, Chai Wang Wai, Shiang Cheah |
| author_facet | Lee, Hung Liew Beng, Yong Lee Yin, Chai Wang Wai, Shiang Cheah |
| author_sort | Lee, Hung Liew |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Geometric distortions caused by different sources usually are accumulated and not present singly in a remotely
sensed image. In addition, the effects of geometric distortions are found unequally in the entire image. Hence, aerial images should be rectified before proceed with subsequent images analysis. Control points and geometric transformation are the essential components in non-parametric approach. Barrel and perspective distortions are usually found in aerial images. This paper studies the deformation rate contributed by control points at different regions in an image before rectification according to different distribution patterns. Besides, this paper also discusses the
appropriate geometric transformation through the concern of the expected distortions. Experiments are conducted using grid images and aerial images to investigate the effect of distributions of control points and the efficiency of global and local geometric transformations for aerial images rectification. It demonstrated
that control points at different image regions have different deformation rates, control points distributed at image centre are less distorted and local transformation performs better in rectifying images with complex distortions. |
| first_indexed | 2025-11-15T06:10:30Z |
| format | Article |
| id | unimas-5187 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:10:30Z |
| publishDate | 2013 |
| publisher | Journal of Convergence |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-51872015-03-23T06:28:40Z http://ir.unimas.my/id/eprint/5187/ Aerial Images Rectification Using Non-parametric Approach Lee, Hung Liew Beng, Yong Lee Yin, Chai Wang Wai, Shiang Cheah QA Mathematics T Technology (General) Geometric distortions caused by different sources usually are accumulated and not present singly in a remotely sensed image. In addition, the effects of geometric distortions are found unequally in the entire image. Hence, aerial images should be rectified before proceed with subsequent images analysis. Control points and geometric transformation are the essential components in non-parametric approach. Barrel and perspective distortions are usually found in aerial images. This paper studies the deformation rate contributed by control points at different regions in an image before rectification according to different distribution patterns. Besides, this paper also discusses the appropriate geometric transformation through the concern of the expected distortions. Experiments are conducted using grid images and aerial images to investigate the effect of distributions of control points and the efficiency of global and local geometric transformations for aerial images rectification. It demonstrated that control points at different image regions have different deformation rates, control points distributed at image centre are less distorted and local transformation performs better in rectifying images with complex distortions. Journal of Convergence 2013 Article PeerReviewed text en http://ir.unimas.my/id/eprint/5187/1/aerial%20images%20rectification%20using%20non%20-parametic%20%28abstract%29.pdf Lee, Hung Liew and Beng, Yong Lee and Yin, Chai Wang and Wai, Shiang Cheah (2013) Aerial Images Rectification Using Non-parametric Approach. Journal of Convergence, 4 (2). http://ir.unimas.my/5187/1/aerial%20images%20rectification%20using%20non%20-parametic%20%28abstract%29.pdf |
| spellingShingle | QA Mathematics T Technology (General) Lee, Hung Liew Beng, Yong Lee Yin, Chai Wang Wai, Shiang Cheah Aerial Images Rectification Using Non-parametric Approach |
| title | Aerial Images Rectification Using Non-parametric Approach |
| title_full | Aerial Images Rectification Using Non-parametric Approach |
| title_fullStr | Aerial Images Rectification Using Non-parametric Approach |
| title_full_unstemmed | Aerial Images Rectification Using Non-parametric Approach |
| title_short | Aerial Images Rectification Using Non-parametric Approach |
| title_sort | aerial images rectification using non-parametric approach |
| topic | QA Mathematics T Technology (General) |
| url | http://ir.unimas.my/id/eprint/5187/ http://ir.unimas.my/id/eprint/5187/ http://ir.unimas.my/id/eprint/5187/1/aerial%20images%20rectification%20using%20non%20-parametic%20%28abstract%29.pdf |