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We propose a novel inverse rendering method that enables the transformation of existing indoor panoramas with new indoor furniture layouts under natural illumination. To achieve this, we captured indoor HDR panoramas along with real-time…

计算机视觉与模式识别 · 计算机科学 2024-01-30 Guanzhou Ji , Azadeh O. Sawyer , Srinivasa G. Narasimhan

This paper presents the use of panoramic 3D estimation in lighting simulation. Conventional lighting simulation necessitates detailed modeling as input, resulting in significant labor effort and time cost. The 3D layout estimation method…

计算机视觉与模式识别 · 计算机科学 2024-05-21 Zining Cheng , Guanzhou Ji

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

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 CNN-based technique to estimate high-dynamic range outdoor illumination from a single low dynamic range image. To train the CNN, we leverage a large dataset of outdoor panoramas. We fit a low-dimensional physically-based…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Yannick Hold-Geoffroy , Kalyan Sunkavalli , Sunil Hadap , Emiliano Gambaretto , Jean-François Lalonde

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

Because of the diversity in lighting environments, existing illumination estimation techniques have been designed explicitly on indoor or outdoor environments. Methods have focused specifically on capturing accurate energy (e.g., through…

计算机视觉与模式识别 · 计算机科学 2023-08-23 Mohammad Reza Karimi Dastjerdi , Jonathan Eisenmann , Yannick Hold-Geoffroy , Jean-François Lalonde

In this work, we address the problem of jointly estimating albedo, normals, depth and 3D spatially-varying lighting from a single image. Most existing methods formulate the task as image-to-image translation, ignoring the 3D properties of…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Zian Wang , Jonah Philion , Sanja Fidler , Jan Kautz

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

The potential energy loss of aging buildings traps building owners in a cycle of underfunding operations and overpaying maintenance costs. Energy auditors intending to generate an energy model of a target building for performance assessment…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Zihao Wang , Yu Hou , Lucio Soibelman

We propose a real-time method to estimate spatiallyvarying indoor lighting from a single RGB image. Given an image and a 2D location in that image, our CNN estimates a 5th order spherical harmonic representation of the lighting at the given…

计算机视觉与模式识别 · 计算机科学 2019-06-11 Mathieu Garon , Kalyan Sunkavalli , Sunil Hadap , Nathan Carr , Jean-François Lalonde

Estimating a scene's lighting is a very important task when compositing synthetic content within real environments, with applications in mixed reality and post-production. In this work we present a data-driven model that estimates an HDR…

计算机视觉与模式识别 · 计算机科学 2020-05-19 Vasileios Gkitsas , Nikolaos Zioulis , Federico Alvarez , Dimitrios Zarpalas , Petros Daras

Indoor lighting estimation from a single image or video remains a challenge due to its highly ill-posed nature, especially when the lighting condition of the scene varies spatially and temporally. We propose a method that estimates from an…

图形学 · 计算机科学 2025-08-13 Mutian Tong , Rundi Wu , Changxi Zheng

We present a neural network that predicts HDR outdoor illumination from a single LDR image. At the heart of our work is a method to accurately learn HDR lighting from LDR panoramas under any weather condition. We achieve this by training…

计算机视觉与模式识别 · 计算机科学 2019-06-13 Jinsong Zhang , Kalyan Sunkavalli , Yannick Hold-Geoffroy , Sunil Hadap , Jonathan Eisenmann , Jean-François Lalonde

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

In this work, we propose a step towards a more accurate prediction of the environment light given a single picture of a known object. To achieve this, we developed a deep learning method that is able to encode the latent space of indoor…

计算机视觉与模式识别 · 计算机科学 2018-08-14 Henrique Weber , Donald Prévost , Jean-François Lalonde

We present a novel virtual staging application for kitchen remodeling from a single panorama. To ensure the realism of the virtual rendered scene, we capture real-world High Dynamic Range (HDR) panoramas and recover the absolute scene…

图形学 · 计算机科学 2025-04-24 Guanzhou Ji , Azadeh O. Sawyer , Srinivasa G. Narasimhan

We propose a data-driven learned sky model, which we use for outdoor lighting estimation from a single image. As no large-scale dataset of images and their corresponding ground truth illumination is readily available, we use complementary…

计算机视觉与模式识别 · 计算机科学 2019-05-13 Yannick Hold-Geoffroy , Akshaya Athawale , Jean-François Lalonde

Real-time rendering with global illumination is crucial to afford the user realistic experience in virtual environments. We present a learning-based estimator to predict diffuse indirect illumination in screen space, which then is combined…

图形学 · 计算机科学 2025-11-06 Meng Gai , Guoping Wang , Sheng Li

Thermal infrared imaging offers the advantage of all-weather capability, enabling non-intrusive measurement of an object's surface temperature. Consequently, thermal infrared images are employed to reconstruct 3D models that accurately…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Kun Yang , Yuxiang Liu , Zeyu Cui , Yu Liu , Maojun Zhang , Shen Yan , Qing Wang
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