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Separating an image into meaningful underlying components is a crucial first step for both editing and understanding images. We present a method capable of selecting the regions of a photograph exhibiting the same material as an…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Prafull Sharma , Julien Philip , Michaël Gharbi , William T. Freeman , Fredo Durand , Valentin Deschaintre

Exposure correction is one of the fundamental tasks in image processing and computational photography. While various methods have been proposed, they either fail to produce visually pleasing results, or only work well for limited types of…

计算机视觉与模式识别 · 计算机科学 2019-10-31 Qing Zhang , Yongwei Nie , Wei-Shi Zheng

Collections of images under a single, uncontrolled illumination have enabled the rapid advancement of core computer vision tasks like classification, detection, and segmentation. But even with modern learning techniques, many inverse…

计算机视觉与模式识别 · 计算机科学 2019-10-21 Lukas Murmann , Michael Gharbi , Miika Aittala , Fredo Durand

We present Intrinsic Image Diffusion, a generative model for appearance decomposition of indoor scenes. Given a single input view, we sample multiple possible material explanations represented as albedo, roughness, and metallic maps.…

计算机视觉与模式识别 · 计算机科学 2024-03-22 Peter Kocsis , Vincent Sitzmann , Matthias Nießner

We present a method to estimate lighting from a single image of an indoor scene. Previous work has used an environment map representation that does not account for the localized nature of indoor lighting. Instead, we represent lighting as a…

计算机视觉与模式识别 · 计算机科学 2019-10-22 Marc-André Gardner , Yannick Hold-Geoffroy , Kalyan Sunkavalli , Christian Gagné , Jean-François Lalonde

Intrinsic image decomposition aims to separate the surface reflectance and the effects from the illumination given a single photograph. Due to the complexity of the problem, most prior works assume a single-color illumination and a…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Chris Careaga , Yağız Aksoy

Modern computer vision algorithms have brought significant advancement to 3D geometry reconstruction. However, illumination and material reconstruction remain less studied, with current approaches assuming very simplified models for…

计算机视觉与模式识别 · 计算机科学 2019-03-19 Dejan Azinović , Tzu-Mao Li , Anton Kaplanyan , Matthias Nießner

This paper presents an algorithm that enhances undesirably illuminated images by generating and fusing multi-level illuminations from a single image.The input image is first decomposed into illumination and reflectance components by using…

计算机视觉与模式识别 · 计算机科学 2017-08-03 Jae Sung Park , Nam Ik Cho

Creating photorealistic materials for light transport algorithms requires carefully fine-tuning a set of material properties to achieve a desired artistic effect. This is typically a lengthy process that involves a trained artist with…

图形学 · 计算机科学 2019-09-26 Károly Zsolnai-Fehér , Peter Wonka , Michael Wimmer

Image harmonization aims to adjust the foreground illumination in a composite image to make it harmonious. The existing harmonization methods can only produce one deterministic result for a composite image, ignoring that a composite image…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Xinhao Tao , Tianyuan Qiu , Junyan Cao , Li Niu

Empowered by deep learning, recent methods for material capture can estimate a spatially-varying reflectance from a single photograph. Such lightweight capture is in stark contrast with the tens or hundreds of pictures required by…

图形学 · 计算机科学 2019-06-28 Valentin Deschaintre , Miika Aittala , Fredo Durand , George Drettakis , Adrien Bousseau

It is suggested that low-light image enhancement realizes one-to-many mapping since we have different definitions of NORMAL-light given application scenarios or users' aesthetic. However, most existing methods ignore subjectivity of the…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Ya'nan Wang , Zhuqing Jiang , Chang Liu , Kai Li , Aidong Men , Haiying Wang

We propose an automatic method to infer high dynamic range illumination from a single, limited field-of-view, low dynamic range photograph of an indoor scene. In contrast to previous work that relies on specialized image capture, user…

计算机视觉与模式识别 · 计算机科学 2017-11-22 Marc-André Gardner , Kalyan Sunkavalli , Ersin Yumer , Xiaohui Shen , Emiliano Gambaretto , Christian Gagné , Jean-François Lalonde

We present a learning-based technique for estimating high dynamic range (HDR), omnidirectional illumination from a single low dynamic range (LDR) portrait image captured under arbitrary indoor or outdoor lighting conditions. We train our…

计算机视觉与模式识别 · 计算机科学 2020-08-07 Chloe LeGendre , Wan-Chun Ma , Rohit Pandey , Sean Fanello , Christoph Rhemann , Jason Dourgarian , Jay Busch , Paul Debevec

Imaging in low-light environments is challenging due to reduced scene radiance, which leads to elevated sensor noise and reduced color saturation. Most learning-based low-light enhancement methods rely on paired training data captured under…

计算机视觉与模式识别 · 计算机科学 2026-04-10 Maria Pilligua , David Serrano-Lozano , Pai Peng , Ramon Baldrich , Michael S. Brown , Javier Vazquez-Corral

Inverse rendering of an object under entirely unknown capture conditions is a fundamental challenge in computer vision and graphics. Neural approaches such as NeRF have achieved photorealistic results on novel view synthesis, but they…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Mark Boss , Andreas Engelhardt , Abhishek Kar , Yuanzhen Li , Deqing Sun , Jonathan T. Barron , Hendrik P. A. Lensch , Varun Jampani

We present a method for estimating lighting from a single perspective image of an indoor scene. Previous methods for predicting indoor illumination usually focus on either simple, parametric lighting that lack realism, or on richer…

计算机视觉与模式识别 · 计算机科学 2022-11-11 Henrique Weber , Mathieu Garon , Jean-François Lalonde

Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem. While significant progress has been made on inferring…

计算机视觉与模式识别 · 计算机科学 2015-11-16 Konstantinos Rematas , Tobias Ritschel , Mario Fritz , Efstratios Gavves , Tinne Tuytelaars

This paper addresses the task of estimating the light arriving from all directions to a 3D point observed at a selected pixel in an RGB image. This task is challenging because it requires predicting a mapping from a partial scene…

计算机视觉与模式识别 · 计算机科学 2019-06-19 Shuran Song , Thomas Funkhouser

This paper presents an illumination estimation method for virtual objects in real environment by learning. While previous works tackled this problem by reconstructing high dynamic range (HDR) environment maps or the corresponding spherical…

计算机视觉与模式识别 · 计算机科学 2020-07-14 Di Xu , Zhen Li , Yanning Zhang , Qi Cao
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