Direct Inter-Intra View Association for Light Field Super-Resolution

  • Da Yang
  • , Hao Sheng*
  • , Shuai Wang
  • , Rongshan Chen
  • , Zhang Xiong
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Light field (LF) cameras record both intensity and directions of light rays in a scene with a single exposure. However, due to the inevitable trade-off between spatial and angular dimensions, the spatial resolution of LF images is limited which makes LF super-resolution (LFSR) a research hotspot. The key of LFSR is the complementation across views and the extraction of high-frequency information inside each view. Due to the high-dimensinality of LF data, previous methods usually model these two processes separately, which results in insufficient inter-view information fusion. In this paper, LF Transformer is proposed for comprehensive perception of 4D LF data. Necessary inter-intra view correlations can be directly established inside each LF Transformer block. Therefore it can handle complex disparity variations of LF. Then based on LF Transformers, 4DTNet is designed which comprehensively performs inter-intra view high-frequency information extraction. Extensive experiments on public datasets demonstrate that 4DTNet outperforms the current state-of-the-art methods both numerically and visually.

Original languageEnglish
Title of host publicationNeural Information Processing - 30th International Conference, ICONIP 2023, Proceedings
EditorsBiao Luo, Long Cheng, Zheng-Guang Wu, Hongyi Li, Chaojie Li
PublisherSpringer Science and Business Media Deutschland GmbH
Pages265-278
Number of pages14
ISBN (Print)9789819980727
DOIs
StatePublished - 2024
Event30th International Conference on Neural Information Processing, ICONIP 2023 - Changsha, China
Duration: 20 Nov 202323 Nov 2023

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume14451 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference30th International Conference on Neural Information Processing, ICONIP 2023
Country/TerritoryChina
CityChangsha
Period20/11/2323/11/23

Keywords

  • Light field
  • Super-resolution
  • Transformer

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