2007, English, Article edition: Quality-based improvement of Quantization for Light Field Compression Lerbour, Raphaël; Mercier, Bruno; Meneveaux, Daniel; ...

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Bookmark: http://trove.nla.gov.au/version/205185
Physical Description
  • text
Published
  • HAL - CCSD
  • 2007
Language
  • English

Edition details

Title
  • Quality-based improvement of Quantization for Light Field Compression
Author
  • Lerbour, Raphaël
  • Mercier, Bruno
  • Meneveaux, Daniel
  • Larabi, Mohamed-Chaker
Published
  • HAL - CCSD
  • 2007
Physical Description
  • text
Subjects
Notes
  • In the last decade, many methods have been proposed for rendering image-based objects. However, the number and the size of the images required are highly memory demanding. Based on the light field data structure, we propose an improved compression scheme favoring visual appearance and fast random access. Our method relies on vector quantization for preserving access in constant time. 2D Bounding boxes and masks are used to reduce the number of vectors during quantization. Several light field images are used instead of blocks of 4D samples, so that image similarities be exploited as much as possible. Psychophysical experiments performed in a room designed according to ITU recommendations validate the quality metrics of our method.
  • HAL:hal-00337700, version 1
  • HAL:http:/​/​hal.archives-ouvertes.fr/​hal-00337700/​en/​
Language
  • English
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