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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

We present a scheme for fast environment light estimation from the RGBD appearance of individual objects and their local image areas. Conventional inverse rendering is too computationally demanding for real-time applications, and the…

计算机视觉与模式识别 · 计算机科学 2020-08-07 Xin Wei , Guojun Chen , Yue Dong , Stephen Lin , Xin Tong

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

Faithful manipulation of shape, material, and illumination in 2D Internet images would greatly benefit from a reliable factorization of appearance into material (i.e., diffuse and specular) and illumination (i.e., environment maps). On the…

图形学 · 计算机科学 2017-11-15 Tuanfeng Y. Wang , Tobias Ritschel , Niloy J. Mitra

This paper presents an algorithm for indoor layout estimation and reconstruction through the fusion of a sequence of captured images and LiDAR data sets. In the proposed system, a movable platform collects both intensity images and 2D LiDAR…

计算机视觉与模式识别 · 计算机科学 2020-01-16 Jieyu Li , Robert L Stevenson

We present a simple yet effective technique to estimate lighting in a single input image. Current techniques rely heavily on HDR panorama datasets to train neural networks to regress an input with limited field-of-view to a full environment…

This paper presents a novel indoor layout estimation system based on the fusion of 2D LiDAR and intensity camera data. A ground robot explores an indoor space with a single floor and vertical walls, and collects a sequence of intensity…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Jieyu Li , Robert Stevenson

The past decade has seen the advent of numerous building energy efficiency visualization and simulation systems; however, most of them rely on theoretical thermal models to suggest building structural design for new constructions and…

图形学 · 计算机科学 2018-11-14 Felix Hamza-Lup , Marcel Maghiar

We present the first end to end approach for real time material estimation for general object shapes with uniform material that only requires a single color image as input. In addition to Lambertian surface properties, our approach fully…

计算机视觉与模式识别 · 计算机科学 2018-05-07 Abhimitra Meka , Maxim Maximov , Michael Zollhoefer , Avishek Chatterjee , Hans-Peter Seidel , Christian Richardt , Christian Theobalt

This paper presents a method of estimating the geometry of a room and the 3D pose of objects from a single 360-degree panorama image. Assuming Manhattan World geometry, we formulate the task as a Bayesian inference problem in which we…

计算机视觉与模式识别 · 计算机科学 2016-10-03 Jiu Xu , Bjorn Stenger , Tommi Kerola , Tony Tung

We present SOLID-Net, a neural network for spatially-varying outdoor lighting estimation from a single outdoor image for any 2D pixel location. Previous work has used a unified sky environment map to represent outdoor lighting. Instead, we…

计算机视觉与模式识别 · 计算机科学 2021-04-29 Yongjie Zhu , Yinda Zhang , Si Li , Boxin Shi

Thermal infrared cameras are increasingly being used in various applications such as robot vision, industrial inspection and medical imaging, thanks to their improved resolution and portability. However, the performance of traditional…

图像与视频处理 · 电气工程与系统科学 2021-03-16 Manash Pratim Das , Larry Matthies , Shreyansh Daftry

We present a method to edit complex indoor lighting from a single image with its predicted depth and light source segmentation masks. This is an extremely challenging problem that requires modeling complex light transport, and disentangling…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Zhengqin Li , Jia Shi , Sai Bi , Rui Zhu , Kalyan Sunkavalli , Miloš Hašan , Zexiang Xu , Ravi Ramamoorthi , Manmohan Chandraker

Reliable estimation of illuminant chromaticity is crucial for simulating color constancy and for white balancing digital images. However, estimating illuminant chromaticity from a single image is an ill-posed task, in general, and existing…

计算机视觉与模式识别 · 计算机科学 2019-06-14 Eytan Lifshitz , Dani Lischinski

Recent research is trying to leverage occupants' demand in the building's control loop to consider individuals' well-being and the buildings' energy savings. To that end, a real-time feedback system is needed to provide data about…

计算机视觉与模式识别 · 计算机科学 2022-04-20 Roshanak Ashrafi , Mona Azarbayjani , Hamed Tabkhi

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

We introduce a technique based on infrared thermal emission, termed depth thermography, that can remotely measure the temperature distribution beneath the surface of certain objects. Depth thermography utilizes the thermal-emission spectrum…

光学 · 物理学 2019-08-22 Yuzhe Xiao , Chenghao Wan , Alireza Shahsafi , Jad Salman , Mikhail A. Kats

Low-cost thermal cameras are inaccurate (usually $\pm 3^\circ C$) and have space-variant nonuniformity across their detector. Both inaccuracy and nonuniformity are dependent on the ambient temperature of the camera. The goal of this work…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Navot Oz , Nir Sochen , David Mendelovich , Iftach Klapp

We present Lighting in Motion (LiMo), a diffusion-based approach to spatiotemporal lighting estimation. LiMo targets both realistic high-frequency detail prediction and accurate illuminance estimation. To account for both, we propose…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Christophe Bolduc , Julien Philip , Li Ma , Mingming He , Paul Debevec , Jean-François Lalonde

We propose a deep inverse rendering framework for indoor scenes. From a single RGB image of an arbitrary indoor scene, we create a complete scene reconstruction, estimating shape, spatially-varying lighting, and spatially-varying,…

计算机视觉与模式识别 · 计算机科学 2019-05-09 Zhengqin Li , Mohammad Shafiei , Ravi Ramamoorthi , Kalyan Sunkavalli , Manmohan Chandraker