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Author:

Li, W. (Li, W..) | Wen, S. (Wen, S..) | Zhu, J. (Zhu, J..) | Ou, Q. (Ou, Q..) | Guo, Y. (Guo, Y..) | Chen, J. (Chen, J..) | Xiong, B. (Xiong, B..)

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Scopus

Abstract:

When shooting street scenes at night, the captured images may be underexposed or overexposed, which seriously affects human visual perception. Therefore, exposure correction is required for these images. Most existing exposure correction methods rely heavily on reference images and the exposure correction results are not thorough. To address these issues, we propose a zero-shot multi-exposure correction method based on S-curves, called ZSDECNet. Our method is divided into two parts: multi-exposure correction and fusion. First, the illumination channel of the image and the corresponding inverted image are subjected to an initial exposure correction. Moreover, by exposure fusion technique, we select the best exposed area for exposure fusion from the exposure correction results of the input image, the illumination channel, and its inverted channel in order to obtain a visually optimal exposure-corrected image. The method is a zero-shot end-to-end training approach that does not require additional data. In addition, the S-type exposure correction curve corrects both underexposed and overexposed areas, which makes it possible to obtain more thorough exposure correction results. Experiments on existing datasets with various exposure conditions (underexposed and overexposed) and on a real nighttime street scene dataset show that our method outperforms state-of-the-art methods. © 2025 Elsevier B.V.

Keyword:

Exposure correction Multi-exposure fusion Illumination estimation Zero-shot

Author Community:

  • [ 1 ] [Li W.]Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, and the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing, 100191, China
  • [ 2 ] [Wen S.]Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, and the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing, 100191, China
  • [ 3 ] [Zhu J.]Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, and the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing, 100191, China
  • [ 4 ] [Ou Q.]School of Information Engineering, Nanchang Hangkong University, Jiangxi, Nanchang, 330063, China
  • [ 5 ] [Guo Y.]School of Information Engineering, Nanchang Hangkong University, Jiangxi, Nanchang, 330063, China
  • [ 6 ] [Chen J.]Faculty of Information Technology, Beijing University of Technology, Beijing, 100124, China
  • [ 7 ] [Xiong B.]Key Laboratory of Precision Opto-mechatronics Technology, Ministry of Education, and the School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing, 100191, China
  • [ 8 ] [Xiong B.]School of Information Engineering, Nanchang Hangkong University, Jiangxi, Nanchang, 330063, China

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Source :

Neurocomputing

ISSN: 0925-2312

Year: 2025

Volume: 627

6 . 0 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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