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Despite recent advances in image enhancement, it remains difficult for existing approaches to adaptively improve the brightness and contrast for both low-light and normal-light images. To solve this problem, we propose a novel 2D histogram…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Xiaomeng Wu , Yongqing Sun , Akisato Kimura , Kunio Kashino

Diffusion models achieve state-of-the-art generative performance but suffer from high computational costs during inference due to the repeated evaluation of a heavy neural network. In this work, we propose Dual-Rate Diffusion, a method to…

机器学习 · 计算机科学 2026-05-19 Grigory Bartosh , David Ruhe , Emiel Hoogeboom , Jonathan Heek , Thomas Mensink , Tim Salimans

High dynamic range imaging (HDRI) for real-world dynamic scenes is challenging because moving objects may lead to hybrid degradation of low dynamic range and motion blur. Existing event-based approaches only focus on a separate task, while…

计算机视觉与模式识别 · 计算机科学 2024-04-05 Li Xiaopeng , Zeng Zhaoyuan , Fan Cien , Zhao Chen , Deng Lei , Yu Lei

High dynamic range (HDR) imaging is still a challenging task in modern digital photography. Recent research proposes solutions that provide high-quality acquisition but at the cost of a very large number of operations and a slow inference…

计算机视觉与模式识别 · 计算机科学 2023-02-13 Steven Tel , Barthélémy Heyrman , Dominique Ginhac

An event camera detects per-pixel intensity difference and produces asynchronous event stream with low latency, high dynamic range, and low power consumption. As a trade-off, the event camera has low spatial resolution. We propose an…

计算机视觉与模式识别 · 计算机科学 2020-04-13 S. Mohammad Mostafavi I. , Jonghyun Choi , Kuk-Jin Yoon

Depth information is useful for many applications. Active depth sensors are appealing because they obtain dense and accurate depth maps. However, due to issues that range from power constraints to multi-sensor interference, these sensors…

图像与视频处理 · 电气工程与系统科学 2020-02-04 James Noraky , Vivienne Sze

A major challenge for high dynamic range (HDR) image reconstruction from multi-exposed low dynamic range (LDR) images, especially with dynamic scenes, is the extraction and merging of relevant contextual features in order to suppress any…

图像与视频处理 · 电气工程与系统科学 2022-11-09 Lingkai Zhu , Fei Zhou , Bozhi Liu , Orcun Göksel

High Dynamic Range (HDR) video acquisition using the alternating exposure (AE) paradigm has garnered significant attention due to its cost-effectiveness with a single consumer camera. However, despite progress driven by deep neural…

计算机视觉与模式识别 · 计算机科学 2026-02-26 Qianyu Zhang , Bolun Zheng , Lingyu Zhu , Hangjia Pan , Zunjie Zhu , Zongpeng Li , Shiqi Wang

In low-light conditions, a conventional camera imaging pipeline produces sub-optimal images that are usually dark and noisy due to a low photon count and low signal-to-noise ratio (SNR). We present a data-driven approach that learns the…

计算机视觉与模式识别 · 计算机科学 2019-04-15 Syed Waqas Zamir , Aditya Arora , Salman Khan , Fahad Shahbaz Khan , Ling Shao

Burst image restoration aims to reconstruct a high-quality image from burst images, which are typically captured using manually designed exposure settings. Although these exposure settings significantly influence the final restoration…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Woohyeok Kim , Jaesung Rim , Daeyeon Kim , Sunghyun Cho

Mapping a single exposure low dynamic range (LDR) image into a high dynamic range (HDR) is considered among the most strenuous image to image translation tasks due to exposure-related missing information. This study tackles the challenges…

计算机视觉与模式识别 · 计算机科学 2021-04-20 SMA Sharif , Rizwan Ali Naqvi , Mithun Biswas , Kim Sungjun

High Dynamic Range (HDR) images are generated using multiple exposures of a scene. When a hand-held camera is used to capture a static scene, these images need to be aligned by globally shifting each image in both dimensions. For a fast and…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Kadir Cenk Alpay , Kadir Berkay Aydemir , Alptekin Temizel

Event cameras are bio-inspired vision sensors that output pixel-level brightness changes instead of standard intensity frames. These cameras do not suffer from motion blur and have a very high dynamic range, which enables them to provide…

计算机视觉与模式识别 · 计算机科学 2018-04-06 Antoni Rosinol Vidal , Henri Rebecq , Timo Horstschaefer , Davide Scaramuzza

Event cameras are bio-inspired sensors that asynchronously report intensity changes in microsecond resolution. DAVIS can capture high dynamics of a scene and simultaneously output high temporal resolution events and low frame-rate intensity…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Liyuan Pan , Miaomiao Liu , Richard Hartley

Inconsistency in contrast enhancement can be used to expose image forgeries. In this work, we describe a new method to estimate contrast enhancement from a single image. Our method takes advantage of the nature of contrast enhancement as a…

计算机视觉与模式识别 · 计算机科学 2017-06-14 Longyin Wen , Honggang Qi , Siwei Lyu

We present a method to separate a single image captured under two illuminants, with different spectra, into the two images corresponding to the appearance of the scene under each individual illuminant. We do this by training a deep neural…

计算机视觉与模式识别 · 计算机科学 2019-04-24 Zhuo Hui , Ayan Chakrabarti , Kalyan Sunkavalli , Aswin C. Sankaranarayanan

RAW images are unprocessed camera sensor output with sensor-specific RGB values based on the sensor's color filter spectral sensitivities. RAW images also incur strong color casts due to the sensor's response to the spectral properties of…

计算机视觉与模式识别 · 计算机科学 2025-08-21 Abhijith Punnappurath , Luxi Zhao , Hoang Le , Abdelrahman Abdelhamed , SaiKiran Kumar Tedla , Michael S. Brown

Traditional auto white balance (AWB) algorithms typically assume a single global illuminant source, which leads to color distortions in multi-illuminant scenes. While recent neural network-based methods have shown excellent accuracy in such…

图像与视频处理 · 电气工程与系统科学 2025-02-07 Wenjun Wei , Yanlin Qian , Huaian Chen , Junkang Dai , Yi Jin

Illumination estimation is often used in mixed reality to re-render a scene from another point of view, to change the color/texture of an object, or to insert a virtual object consistently lit into a real video or photograph. Specifically,…

计算机视觉与模式识别 · 计算机科学 2018-12-13 Grégoire Nieto , Salma Jiddi , Philippe Robert

Achieving robust stereo 3D imaging under diverse illumination conditions is an important however challenging task, due to the limited dynamic ranges (DRs) of cameras, which are significantly smaller than real world DR. As a result, the…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Juhyung Choi , Jinnyeong Kim , Seokjun Choi , Jinwoo Lee , Samuel Brucker , Mario Bijelic , Felix Heide , Seung-Hwan Baek