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Multi-Mask Camera M...
Multi-Mask Camera Model for Compressed Acquisition of Light Fields
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- Nguyen, H. -N (författare)
- Inria Ctr Rech Rennes Bretagne Atlantique, France
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- Miandji, Ehsan (författare)
- Linköpings universitet,Medie- och Informationsteknik,Tekniska fakulteten,Inria Rennes Bretagne Atlantique, France
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- Guillemot, C. (författare)
- Inria Ctr Rech Rennes Bretagne Atlantique, France
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(creator_code:org_t)
- Institute of Electrical and Electronics Engineers Inc. 2021
- 2021
- Engelska.
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Ingår i: IEEE Transactions on Computational Imaging. - : Institute of Electrical and Electronics Engineers Inc.. - 2573-0436 .- 2333-9403. ; 7, s. 191-208
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We present an all-in-one camera model that encompasses the architectures of most existing compressive-sensing light-field cameras, equipped with a single lens and multiple amplitude coded masks that can be placed at different positions between the lens and the sensor. The proposed model, named the equivalent multi-mask camera (EMMC) model, enables the comparison between different camera designs, e.g using monochrome or CFA-based sensors, single or multiple acquisitions, or varying pixel sizes, via a simple adaptation of the sampling operator. In particular, in the case of a camera equipped with a CFA-based sensor and a coded mask, this model allows us to jointly perform color demosaicing and light field spatio-angular reconstruction. In the case of variable pixel size, it allows to perform spatial super-resolution in addition to angular reconstruction. While the EMMC model is generic and can be used with any reconstruction algorithm, we validate the proposed model with a dictionary-based reconstruction algorithm and a regularization-based reconstruction algorithm using a 4D Total-Variation-based regularizer for light field data. Experimental results with different reconstruction algorithms show that the proposed model can flexibly adapt to various sensing schemes. They also show the advantage of using an in-built CFA sensor with respect to monochrome sensors classically used in the literature. © 2015 IEEE.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Annan teknik -- Mediateknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies -- Media Engineering (hsv//eng)
Nyckelord
- camera models
- compressed sensing
- inverse problems
- Light Field imaging
- regularization
- Pixels
- Camera design
- Color demosaicing
- Compressive sensing
- Multiple acquisitions
- Reconstruction algorithms
- Sensing schemes
- Super resolution
- Total variation
- Cameras
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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