Deep Temporal Color Constancy for AC Light Sources

Jun Sang Yoo, Chan Ho Lee, Jong Ok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Most of the lights surrounding our world are artificial lights, whose power is supplied by alternative current (AC). The intensities of these lights are dynamically varying with time. In this paper, we propose a novel deep-learning based method for temporal color constancy. We capture this intensity variation of AC lights using high-speed camera, and use it as a close cue to learn an illuminant chromaticity. While most of the existing methods estimate an illuminant from spatial pixels, the proposed method learns temporal feature via AC flickers of a high-speed video. To effectively learn a temporal feature, the high-speed temporal correlation is fed into the proposed network, and helps it to concentrate on illuminant-attentive regions. As a result, the proposed method works well under complex illuminant environment with ambient lights, which was a very hard problem for existing spatial methods. Experimental results show that the proposed method outperforms all existing methods, and demonstrate that it works very robustly under various illuminant environments.

Original languageEnglish
Title of host publication2020 IEEE International Conference on Visual Communications and Image Processing, VCIP 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages217-221
Number of pages5
ISBN (Electronic)9781728180670
DOIs
Publication statusPublished - 2020 Dec 1
Event2020 IEEE International Conference on Visual Communications and Image Processing, VCIP 2020 - Virtual, Macau, China
Duration: 2020 Dec 12020 Dec 4

Publication series

Name2020 IEEE International Conference on Visual Communications and Image Processing, VCIP 2020

Conference

Conference2020 IEEE International Conference on Visual Communications and Image Processing, VCIP 2020
CountryChina
CityVirtual, Macau
Period20/12/120/12/4

Keywords

  • AC flicker
  • high-speed video
  • temporal color constancy
  • temporal correlation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Media Technology

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