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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2022.3150296
|2 doi
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|a pubmed24n1123.xml
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|a eng
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| 100 |
1 |
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|a Pistellato, Mara
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Deep Demosaicing for Polarimetric Filter Array Cameras
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|c 2022
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 28.02.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Polarisation Filter Array (PFA) cameras allow the analysis of light polarisation state in a simple and cost-effective manner. Such filter arrays work as the Bayer pattern for colour cameras, sharing similar advantages and drawbacks. Among the others, the raw image must be demosaiced considering the local variations of the PFA and the characteristics of the imaged scene. Non-linear effects, like the cross-talk among neighbouring pixels, are difficult to explicitly model and suggest the potential advantage of a data-driven learning approach. However, the PFA cannot be removed from the sensor, making it difficult to acquire the ground-truth polarization state for training. In this work we propose a novel CNN-based model which directly demosaics the raw camera image to a per-pixel Stokes vector. Our contribution is twofold. First, we propose a network architecture composed by a sequence of Mosaiced Convolutions operating coherently with the local arrangement of the different filters. Second, we introduce a new method, employing a consumer LCD screen, to effectively acquire real-world data for training. The process is designed to be invariant by monitor gamma and external lighting conditions. We extensively compared our method against algorithmic and learning-based demosaicing techniques, obtaining a consistently lower error especially in terms of polarisation angle
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|a Journal Article
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1 |
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|a Bergamasco, Filippo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Fatima, Tehreem
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Torsello, Andrea
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 31(2022) vom: 15., Seite 2017-2026
|w (DE-627)NLM09821456X
|x 1941-0042
|7 nnns
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| 773 |
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|g volume:31
|g year:2022
|g day:15
|g pages:2017-2026
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|u http://dx.doi.org/10.1109/TIP.2022.3150296
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|d 31
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|b 15
|h 2017-2026
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