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Multi-exposure HDR Imaging: A Review of Pixel-level and Feature-level Reconstruction Methods

arXiv:2608.28674v1 Announce Type: new Abstract: Multi-exposure is an efficient way to capture real-world high-dynamic-range (HDR) scenes. However, HDR imaging suffers from severe ghosting artifacts in dynamic scenes due to the temporal gap between sequential exposures. In this article, we categorize the literature on two important topics on HDR imaging: multi-exposure fusion (MEF) and ghost removal. Conventional filter-based and data-driven methods are studied in pixel space and feature space. For popular deep learning-based approaches, we provide a granular taxonomy based on their alignment and fusion domains: pixel-space methods, which typically employ explicit motion compensation such as optical flow or spatial transformers, and feature-space methods, which leverage implicit alignment through deformable convolutions, attention mechanisms, or latent representation merging. Representative works are compared across different supervision settings, and key design principles are summarized. In addition, this survey summarizes commonly used datasets and evaluation metrics, discussing their applicability under diverse output forms. Finally, major bottlenecks and promising directions for future research are outlined.

SourcearXiv Computer VisionAuthor: Qian Tao, Wei Wang, Chaobing Zheng, Zhengguo Li

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[Submitted on 25 Aug 2026]

Title:Multi-exposure HDR Imaging: A Review of Pixel-level and Feature-level Reconstruction Methods

View a PDF of the paper titled Multi-exposure HDR Imaging: A Review of Pixel-level and Feature-level Reconstruction Methods, by Qian Tao and 3 other authors

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Abstract:Multi-exposure is an efficient way to capture real-world high-dynamic-range (HDR) scenes. However, HDR imaging suffers from severe ghosting artifacts in dynamic scenes due to the temporal gap between sequential exposures. In this article, we categorize the literature on two important topics on HDR imaging: multi-exposure fusion (MEF) and ghost removal. Conventional filter-based and data-driven methods are studied in pixel space and feature space. For popular deep learning-based approaches, we provide a granular taxonomy based on their alignment and fusion domains: pixel-space methods, which typically employ explicit motion compensation such as optical flow or spatial transformers, and feature-space methods, which leverage implicit alignment through deformable convolutions, attention mechanisms, or latent representation merging. Representative works are compared across different supervision settings, and key design principles are summarized. In addition, this survey summarizes commonly used datasets and evaluation metrics, discussing their applicability under diverse output forms. Finally, major bottlenecks and promising directions for future research are outlined.

Comments: Published in Sensors, 2026, 26(14), 4649

Subjects:

Computer Vision and Pattern Recognition (cs.CV)

Cite as: arXiv:2608.28674 [cs.CV]

(or arXiv:2608.28674v1 [cs.CV] for this version)

https://doi.org/10.48550/arXiv.2608.28674

arXiv-issued DOI via DataCite (pending registration)

Journal reference: Sensors 2026, 26(14), 4649

Related DOI:

https://doi.org/10.3390/s26144649

DOI(s) linking to related resources

Submission history

From: Qian Tao [view email] [v1] Tue, 25 Aug 2026 06:05:20 UTC (92,119 KB)

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