An improved algorithm for de-striping of ocean colour monitor imageries aided by measured sensor characteristics
| Autor: | A.S. Kiran Kumar, Durga Goswami, Ashish K. Mishra, Ashutosh Dutt |
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| Rok vydání: | 2016 |
| Předmět: |
Engineering
Pixel Basis (linear algebra) business.industry Dynamic range ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION 02 engineering and technology Orbital mechanics 021001 nanoscience & nanotechnology Residual 01 natural sciences 010309 optics Visual inspection 0103 physical sciences Calibration Data striping 0210 nano-technology business Remote sensing |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| DOI: | 10.1117/12.2228072 |
| Popis: | The push-broom sensors in bands meant to study oceans, in general suffer from residual non uniformity even after radiometric correction. The in-orbit data from OCM-2 shows pronounced striping in lower bands. There have been many attempts and different approaches to solve the problem using image data itself. The success or lack of it of each algorithm lies on the quality of the uniform region identified. In this paper, an image based destriping algorithm is presented with constraints being derived from Ground Calibration exercise. The basis of the methodology is determination of pixel to pixel non-uniformity through uniform segments identified and collected from large number of images, covering the dynamic range of the sensor. The results show the effectiveness of the algorithm over different targets. The performance is qualitatively evaluated by visual inspection and quantitatively measured by two parameters. |
| Databáze: | OpenAIRE |
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