The paper introduces a physics-guided diffusion model for exposure interpolation in high dynamic range imaging, aiming to eliminate brightness order reversal artifacts that arise when fusing two large-exposure-ratio SDR images. The method first interpolates an initial image using a physics-driven component, then refines high-frequency details with a diffusion model that leverages correlation analysis to reduce noise-target variation and fitting error amplification. Experiments demonstrate that this approach outperforms existing convolutional neural network-based exposure interpolation algorithms by generating richer high-frequency content.
By Zhengguo Li, Chaobing Zheng
arXiv:2609.27274v1 Announce Type: new
Abstract: Due to the limited dynamic range of conventional image sensors, captured low dynamic range (LDR) video often suffers from highlight clipping and shadow...
By Tao Zhang, Peixian Su, Xingyu Gao, Yunhao Zou, Yu Lu, Zunjie Zhu, Bolun Zheng, Ying Fu, Chenggang Yan
The paper introduces a method for progressively extending the dynamic range of an image by learning to increase it by a single exposure value first, then applying the network recurrently to achieve full HDR reconstruction. The approach is agnostic to input dynamic range, targets a bounded output domain, and utilizes RAW images with adversarial losses to produce realistic results. Memory Replay during backpropagation allows training over multiple inference stages, reducing reconstruction errors and enabling robust recovery of bright highlights in long‑tailed HDR scenes.
By Sebastian Dille, Keru Fu, S. Mahdi H. Miangoleh, Ya\u{g}{\i}z Aksoy
Due to the limited dynamic range of conventional image sensors, captured low dynamic range (LDR) video often suffers from highlight clipping and shadow detail loss, making high-quality high dynamic ra...
arXiv:2609.28439v1 Announce Type: new
Abstract: The adoption of CMOS sensors in mobile photography is frequently compromised by the rolling shutter (RS) effect, which introduces geometric distortions...
By Xiang Ji, Guixu Lin, Jiancheng Zhao, Zhengwei Yin, Yinqiang Zheng
arXiv:2610.28191v1 Announce Type: new
Abstract: Incorrect exposure degrades both image brightness and recoverable scene detail. Existing sRGB-based correction methods are limited by the non-linear im...
By Yingkai Zhang, Yunhao Zou, Ying Fu