Wavefront Randomization Improves Deconvolution
Fuente:
arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866929241806864384 |
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| author | Kohli, Amit Angelopoulos, Anastasios N. Waller, Laura |
| author_facet | Kohli, Amit Angelopoulos, Anastasios N. Waller, Laura |
| contents | The performance of an imaging system is limited by optical aberrations, which cause blurriness in the resulting image. Digital correction techniques, such as deconvolution, have limited ability to correct the blur, since some spatial frequencies in the scene are not measured adequately (i.e., 'zeros' of the system transfer function). We prove that the addition of a random mask to an imaging system removes its dependence on aberrations, reducing the likelihood of zeros in the transfer function and consequently decreasing the sensitivity to noise during deconvolution. In simulation, we show that this strategy improves image quality over a range of aberration types, aberration strengths, and signal-to-noise ratios. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_07900 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Wavefront Randomization Improves Deconvolution Kohli, Amit Angelopoulos, Anastasios N. Waller, Laura Computer Vision and Pattern Recognition Image and Video Processing Optics I.4.4 The performance of an imaging system is limited by optical aberrations, which cause blurriness in the resulting image. Digital correction techniques, such as deconvolution, have limited ability to correct the blur, since some spatial frequencies in the scene are not measured adequately (i.e., 'zeros' of the system transfer function). We prove that the addition of a random mask to an imaging system removes its dependence on aberrations, reducing the likelihood of zeros in the transfer function and consequently decreasing the sensitivity to noise during deconvolution. In simulation, we show that this strategy improves image quality over a range of aberration types, aberration strengths, and signal-to-noise ratios. |
| title | Wavefront Randomization Improves Deconvolution |
| topic | Computer Vision and Pattern Recognition Image and Video Processing Optics I.4.4 |
| url | https://arxiv.org/abs/2402.07900 |