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An analysis of demosaicing for plenoptic capture based on ray optics
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology. (Realistic3D)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology.
2018 (English)In: Proceedings of 3DTV Conference 2018, 2018Conference paper, Published paper (Refereed)
Abstract [en]

The plenoptic camera is gaining more and more attention as it capturesthe 4D light field of a scene with a single shot and enablesa wide range of post-processing applications. However, the preprocessing steps for captured raw data, such as demosaicing, have been overlooked. Most existing decoding pipelines for plenoptic cameras still apply demosaicing schemes which are developed for conventional cameras. In this paper, we analyze the sampling pattern of microlens-based plenoptic cameras by ray-tracing techniques and ray phase space analysis. The goal of this work is to demonstrate guidelines and principles for demosaicing the plenoptic captures by taking the unique microlens array design into account. We show that the sampling of the plenoptic camera behaves differently from that of a conventional camera and the desired demosaicing scheme is depth-dependent.

Place, publisher, year, edition, pages
2018.
Keywords [en]
Light field, plenoptic camera, depth, image demosaicing
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:miun:diva-33618ISBN: 978-1-5386-6125-3 (electronic)OAI: oai:DiVA.org:miun-33618DiVA, id: diva2:1205763
Conference
3D at any scale and any perspective, 3-5 June 2018, Stockholm – Helsinki – Stockholm
Available from: 2018-05-15 Created: 2018-05-15 Last updated: 2018-06-12Bibliographically approved

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fulltext(945 kB)66 downloads
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Li, YongweiOlsson, RogerSjöström, Mårten

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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf