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The limited dynamic range of the detector can impede coherent diffractive imaging (CDI) schemes from achieving diffraction-limited resolution. To overcome this limitation, a straightforward approach is to utilize high dynamic range (HDR)…

图像与视频处理 · 电气工程与系统科学 2024-06-11 Shantanu Kodgirwar , Lars Loetgering , Chang Liu , Aleena Joseph , Leona Licht , Daniel S. Penagos Molina , Wilhelm Eschen , Jan Rothhardt , Michael Habeck

Achieving high-quality High Dynamic Range (HDR) imaging on resource-constrained edge devices is a critical challenge in computer vision, as its performance directly impacts downstream tasks such as intelligent surveillance and autonomous…

计算机视觉与模式识别 · 计算机科学 2025-09-25 Yu-Shen Huang , Tzu-Han Chen , Cheng-Yen Hsiao , Shaou-Gang Miaou

The prime goal of digital imaging techniques is to reproduce the realistic appearance of a scene. Low Dynamic Range (LDR) cameras are incapable of representing the wide dynamic range of the real-world scene. The captured images turn out to…

计算机视觉与模式识别 · 计算机科学 2021-10-18 Prarabdh Raipurkar , Rohil Pal , Shanmuganathan Raman

In this lecture note, we describe high dynamic range (HDR) imaging systems; such systems are able to represent luminances of much larger brightness and, typically, also a larger range of colors than conventional standard dynamic range (SDR)…

图形学 · 计算机科学 2017-12-01 Alessandro Artusi , Thomas Richter , Touradj Ebrahimi , Rafal K. Mantiuk

High-dynamic-range (HDR) photography involves fusing a bracket of images taken at different exposure settings in order to compensate for the low dynamic range of digital cameras such as the ones used in smartphones. In this paper, a method…

计算机视觉与模式识别 · 计算机科学 2020-04-23 Reza Pourreza , Nasser Kehtarnavaz

High dynamic range (HDR) videos provide a more visually realistic experience than the standard low dynamic range (LDR) videos. Despite having significant progress in HDR imaging, it is still a challenging task to capture high-quality HDR…

图像与视频处理 · 电气工程与系统科学 2021-11-04 Mrinal Anand , Nidhin Harilal , Chandan Kumar , Shanmuganathan Raman

Outdoor lighting has extremely high dynamic range. This makes the process of capturing outdoor environment maps notoriously challenging since special equipment must be used. In this work, we propose an alternative approach. We first capture…

计算机视觉与模式识别 · 计算机科学 2017-11-08 Jinsong Zhang , Jean-François Lalonde

Modulo-Imaging (MI) offers a promising alternative for expanding the dynamic range of images by resetting the signal intensity when it reaches the saturation level. Subsequently, high-dynamic range (HDR) modulo imaging requires a recovery…

图像与视频处理 · 电气工程与系统科学 2026-02-02 Brayan Monroy , Jorge Bacca

We demonstrate generating HDR images using the concerted action of multiple black-box, pre-trained LDR image diffusion models. Relying on a pre-trained LDR generative diffusion models is vital as, first, there is no sufficiently large HDR…

图形学 · 计算机科学 2025-03-19 Mojtaba Bemana , Thomas Leimkühler , Karol Myszkowski , Hans-Peter Seidel , Tobias Ritschel

High dynamic range (HDR) video reconstruction is attracting more and more attention due to the superior visual quality compared with those of low dynamic range (LDR) videos. The availability of LDR-HDR training pairs is essential for the…

图像与视频处理 · 电气工程与系统科学 2023-04-14 Huanjing Yue , Yubo Peng , Biting Yu , Xuanwu Yin , Zhenyu Zhou , Jingyu Yang

Due to limited camera capacities, digital images usually have a narrower dynamic illumination range than real-world scene radiance. To resolve this problem, High Dynamic Range (HDR) reconstruction is proposed to recover the dynamic range to…

图像与视频处理 · 电气工程与系统科学 2023-12-14 Jiaqi Tang , Xiaogang Xu , Sixing Hu , Ying-Cong Chen

Multi-exposure image fusion is a method for producing an image with a wide dynamic range by fusing multiple images taken under various exposure values. In this paper, we discuss color distortion included in fused images, and propose a novel…

图像与视频处理 · 电气工程与系统科学 2019-07-29 Artit Visavakitcharoen , Yuma Kinoshita , Hitoshi Kiya

The ability to image high-dynamic-range (HDR) scenes is crucial in many computer vision applications. The dynamic range of conventional sensors, however, is fundamentally limited by their well capacity, resulting in saturation of bright…

图像与视频处理 · 电气工程与系统科学 2022-04-22 Haley M. So , Julien N. P. Martel , Piotr Dudek , Gordon Wetzstein

Recent High Dynamic Range (HDR) techniques extend the capabilities of current cameras where scenes with a wide range of illumination can not be accurately captured with a single low-dynamic-range (LDR) image. This is generally accomplished…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Michal Nazarczuk , Sibi Catley-Chandar , Ales Leonardis , Eduardo Pérez-Pellitero

High dynamic range (HDR) rendering has the ability to faithfully reproduce the wide luminance ranges in natural scenes, but how to accurately assess the rendering quality is relatively underexplored. Existing quality models are mostly…

图像与视频处理 · 电气工程与系统科学 2024-09-11 Peibei Cao , Rafal K. Mantiuk , Kede Ma

Fusing a sequence of perfectly aligned images captured at various exposures, has shown great potential to approach High Dynamic Range (HDR) imaging by sensors with limited dynamic range. However, in the presence of large motion of scene…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Rui Zhou , Yan Niu

High dynamic range (HDR) image is widely-used in graphics and photography due to the rich information it contains. Recently the community has started using deep neural network (DNN) to reconstruct standard dynamic range (SDR) images into…

计算机视觉与模式识别 · 计算机科学 2023-03-24 Cheng Guo , Xiuhua Jiang

It is very challenging to reconstruct a high dynamic range (HDR) from a low dynamic range (LDR) image as an ill-posed problem. This paper proposes a luminance attentive network named LANet for HDR reconstruction from a single LDR image. Our…

计算机视觉与模式识别 · 计算机科学 2021-09-15 Hanning Yu , Wentao Liu , Chengjiang Long , Bo Dong , Qin Zou , Chunxia Xiao

Thanks to High Dynamic Range (HDR) imaging methods, the scope of photography has seen profound changes recently. To be more specific, such methods try to reconstruct the lost luminosity of the real world caused by the limitation of regular…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Ali Reza Omrani , Davide Moroni

Most consumer-grade digital cameras can only capture a limited range of luminance in real-world scenes due to sensor constraints. Besides, noise and quantization errors are often introduced in the imaging process. In order to obtain high…

图像与视频处理 · 电气工程与系统科学 2021-06-22 Xiangyu Chen , Yihao Liu , Zhengwen Zhang , Yu Qiao , Chao Dong