Stereo vision-based high dynamic range imaging using differently-exposed image pair

Won Jae Park, Seo Won Ji, Seok Jae Kang, Seung Won Jung, Sung-Jea Ko

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

In this paper, a high dynamic range (HDR) imaging method based on the stereo vision system is presented. The proposed method uses differently exposed low dynamic range (LDR) images captured from a stereo camera. The stereo LDR images are first converted to initial stereo HDR images using the inverse camera response function estimated from the LDR images. However, due to the limited dynamic range of the stereo LDR camera, the radiance values in under/over-exposed regions of the initial main-view (MV) HDR image can be lost. To restore these radiance values, the proposed stereo matching and hole-filling algorithms are applied to the stereo HDR images. Specifically, the auxiliary-view (AV) HDR image is warped by using the estimated disparity between initial the stereo HDR images and then effective hole-filling is applied to the warped AV HDR image. To reconstruct the final MV HDR, the warped and hole-filled AV HDR image is fused with the initial MV HDR image using the weight map. The experimental results demonstrate objectively and subjectively that the proposed stereo HDR imaging method provides better performance compared to the conventional method.

Original languageEnglish
Article number1473
JournalSensors (Switzerland)
Volume17
Issue number7
DOIs
Publication statusPublished - 2017 Jul 1

Fingerprint

Stereo vision
dynamic range
Imaging techniques
Weights and Measures
Cameras
cameras
radiance

Keywords

  • High dynamic range imaging
  • High dynamic range reconstruction
  • Hole-filling
  • Stereo matching
  • Stereo vision system

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Electrical and Electronic Engineering

Cite this

Stereo vision-based high dynamic range imaging using differently-exposed image pair. / Park, Won Jae; Ji, Seo Won; Kang, Seok Jae; Jung, Seung Won; Ko, Sung-Jea.

In: Sensors (Switzerland), Vol. 17, No. 7, 1473, 01.07.2017.

Research output: Contribution to journalArticle

Park, Won Jae ; Ji, Seo Won ; Kang, Seok Jae ; Jung, Seung Won ; Ko, Sung-Jea. / Stereo vision-based high dynamic range imaging using differently-exposed image pair. In: Sensors (Switzerland). 2017 ; Vol. 17, No. 7.
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