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We consider the challenging problem of outdoor lighting estimation for the goal of photorealistic virtual object insertion into photographs. Existing works on outdoor lighting estimation typically simplify the scene lighting into an…

计算机视觉与模式识别 · 计算机科学 2022-08-22 Zian Wang , Wenzheng Chen , David Acuna , Jan Kautz , Sanja Fidler

Traditional representations for light fields can be separated into two types: explicit representation and implicit representation. Unlike explicit representation that represents light fields as Sub-Aperture Images (SAIs) based arrays or…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Hanxin Zhu , Henan Wang , Zhibo Chen

Recent work on Neural Radiance Fields (NeRF) has demonstrated significant advances in high-quality view synthesis. A major limitation of NeRF is its low rendering efficiency due to the need for multiple network forwardings to render a…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Yushuang Wu , Xiao Li , Jinglu Wang , Xiaoguang Han , Shuguang Cui , Yan Lu

Light field imaging has recently known a regain of interest due to the availability of practical light field capturing systems that offer a wide range of applications in the field of computer vision. However, capturing high-resolution light…

计算机视觉与模式识别 · 计算机科学 2018-01-16 Reuben A. Farrugia , Christine Guillemot

Novel view synthesis has recently been revolutionized by 3D Gaussian Splatting (3DGS), which enables real-time rendering through explicit primitive rasterization. However, existing methods tie visual fidelity strictly to the number of…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Mihnea-Bogdan Jurca , Bert Van hauwermeiren , Adrian Munteanu

We present an imaging and neural rendering technique that seeks to synthesize videos of light propagating through a scene from novel, moving camera viewpoints. Our approach relies on a new ultrafast imaging setup to capture a first-of-its…

计算机视觉与模式识别 · 计算机科学 2024-08-23 Anagh Malik , Noah Juravsky , Ryan Po , Gordon Wetzstein , Kiriakos N. Kutulakos , David B. Lindell

We present a novel technique for implicit neural representation of light fields at continuously defined viewpoints with high quality and fidelity. Our implicit neural representation maps 4D coordinates defining two-plane parameterization of…

图形学 · 计算机科学 2023-05-11 Süleyman Aslan , Brandon Yushan Feng , Amitabh Varshney

Light fields preserve angular information which can be retargeted to multi-panel depth displays. Due to limited aperture size and constrained spatial-angular sampling of many light field capture systems, the displayed light fields provide…

图像与视频处理 · 电气工程与系统科学 2017-10-09 Basel Salahieh , Seth Hunter , Yi Wu , Oscar Nestares

In this paper, we propose a novel end-to-end relightable neural inverse rendering system that achieves high-quality reconstruction of geometry and material properties, thus enabling high-quality relighting. The cornerstone of our method is…

计算机视觉与模式识别 · 计算机科学 2024-10-11 Deheng Zhang , Jingyu Wang , Shaofei Wang , Marko Mihajlovic , Sergey Prokudin , Hendrik P. A. Lensch , Siyu Tang

In recent years, light field (LF) capture and processing has become an integral part of media production. The richness of information available in LFs has enabled novel applications like post-capture depth-of-field editing, 3D…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Thorsten Herfet , Kelvin Chelli , Tobias Lange , Robin Kremer

In many recent works, multi-layer perceptions (MLPs) have been shown to be suitable for modeling complex spatially-varying functions including images and 3D scenes. Although the MLPs are able to represent complex scenes with unprecedented…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Animesh Karnewar , Tobias Ritschel , Oliver Wang , Niloy J. Mitra

The event camera, benefiting from its high dynamic range and low latency, provides performance gain for low-light image enhancement. Unlike frame-based cameras, it records intensity changes with extremely high temporal resolution, capturing…

计算机视觉与模式识别 · 计算机科学 2025-08-04 Chunyan She , Fujun Han , Chengyu Fang , Shukai Duan , Lidan Wang

In recent years, the field of implicit neural representation has progressed significantly. Models such as neural radiance fields (NeRF), which uses relatively small neural networks, can represent high-quality scenes and achieve…

计算机视觉与模式识别 · 计算机科学 2022-04-01 David Dadon , Ohad Fried , Yacov Hel-Or

Light field presents a rich way to represent the 3D world by capturing the spatio-angular dimensions of the visual signal. However, the popular way of capturing light field (LF) via a plenoptic camera presents spatio-angular resolution…

计算机视觉与模式识别 · 计算机科学 2019-10-22 Anil Kumar Vadathya , Sharath Girish , Kaushik Mitra

The light field (LF) reconstruction is mainly confronted with two challenges, large disparity and the non-Lambertian effect. Typical approaches either address the large disparity challenge using depth estimation followed by view synthesis…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Gaochang Wu , Yebin Liu , Lu Fang , Tianyou Chai

Fourier Ptychography (FP) is a recently proposed technique for large field of view and high resolution imaging. Specifically, FP captures a set of low resolution images under angularly varying illuminations and stitches them together in…

光学 · 物理学 2014-11-25 Liheng Bian , Jinli Suo , Guohai Situ , Guoan Zheng , Feng Chen , Qionghai Dai

Depth map estimation is a crucial task in computer vision, and new approaches have recently emerged taking advantage of light fields, as this new imaging modality captures much more information about the angular direction of light rays…

计算机视觉与模式识别 · 计算机科学 2020-08-12 Yang Chen , Martin Alain , Aljosa Smolic

We present an approach for interactively scanning highly reflective objects with a commodity RGBD sensor. In addition to shape, our approach models the surface light field, encoding scene appearance from all directions. By factoring the…

计算机视觉与模式识别 · 计算机科学 2018-09-07 Jeong Joon Park , Richard Newcombe , Steve Seitz

Implicit representations of 3D objects have recently achieved impressive results on learning-based 3D reconstruction tasks. While existing works use simple texture models to represent object appearance, photo-realistic image synthesis…

计算机视觉与模式识别 · 计算机科学 2020-03-30 Michael Oechsle , Michael Niemeyer , Lars Mescheder , Thilo Strauss , Andreas Geiger

Recently, Fourier frequency information has attracted much attention in Low-Light Image Enhancement (LLIE). Some researchers noticed that, in the Fourier space, the lightness degradation mainly exists in the amplitude component and the rest…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Chenxi Wang , Hongjun Wu , Zhi Jin