Title | Analysis of Natural Scene Derived Spatial Frequency Responses for Estimating Camera ISO12233 Slanted-edge Performance |
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Type | Journal article |
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Authors | van Zwanenberg, Oliver, Triantaphillidou, Sophie, Psarrou, Alexandra and Jenkin, Robin B. |
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Abstract | The Natural Scene derived Spatial Frequency Response (NS-SFR) framework automatically extracts suitable step-edges from natural pictorial scenes and processes these edges via the edge-based ISO12233 (e-SFR) algorithm. Previously, a novel methodology was presented to estimate the standard e-SFR from NS-SFR data. This paper implements this method using diverse natural scene image datasets from three characterized camera systems. Quantitative analysis was carried out on the system e-SFR estimates to validate accuracy of the method. Both linear and non-linear camera systems were evaluated. To investigate how scene content and dataset size affect system e-SFR estimates, analysis was conducted on entire datasets, as well as subsets of various sizes and scene group types. Results demonstrate that system e-SFR estimates strongly correlate with results from test chart inputs, with accuracy comparable to that of the ISO12233. Further work toward improving and fine-tuning the proposed methodology for practical implementation is discussed. |
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Keywords | Computer Science Applications |
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| Atomic and Molecular Physics, and Optics |
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| General Chemistry |
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| Electronic, Optical and Magnetic Materials |
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Journal | Journal of Imaging Science and Technology |
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ISSN | 1062-3701 |
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Year | 2021 |
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Publisher | Society for Imaging Science & Technology |
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Accepted author manuscript | File Access Level Open (open metadata and files) |
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Digital Object Identifier (DOI) | https://doi.org/10.2352/j.imagingsci.technol.2021.65.6.060405 |
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Supplemental file | File Access Level Open (open metadata and files) |
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