Results 51 to 60 of about 4,498 (215)

Importance Sampling BRDF Derivatives

, 2023
We propose a set of techniques to efficiently importance sample the derivatives of several BRDF models. In differentiable rendering, BRDFs are replaced by their differential BRDF counterparts which are real-valued and can have negative values. This leads
Li, Tzu-Mao, Belhe, Yash, Ramamoorthi, Ravi, Xu, Bing, Bangaru, Sai Praveen   +4 more
core  

Multi‐Spectral Gaussian Splatting with Neural Color Representation

Computer Graphics Forum, EarlyView.
Abstract 3D Gaussian Splatting (3DGS) [KKLD23] has transformed novel‐view synthesis from RGB images, yet remains restricted to the visible spectrum. Many applications, including agricultural monitoring, rely on multi‐spectral imaging, where spectral camera alignment and scalability pose major challenges.
Lukas Meyer, Josef Grün, Maximilian Weiherer, Bernhard Egger, Marc Stamminger, Linus Franke   +5 more
wiley   +1 more source

Phong BRDF Modeli ile Gerçek Zamanlı Işıklandırma

, 2019
In this paper, we propose a novel real-time Bidirectional Reflectance Distribution Function (BRDF) shading interface for creating isotropic BRDFs in image-based lighting.
Kurt, Murat
core   +1 more source

Radiometric Cross-Calibration of Wide-Field-of-View Cameras Based on Gaofen-1/6 Satellite Synergistic Observations Using Landsat-8 Operational Land Imager Images: A Solution for Off-Nadir Wide-Field-of-View Associated Problems

Remote Sensing, 2023
The Gaofen-1 satellite is equipped with four wide-field-of-view (WFV) instruments, enabling an impressive spatial resolution of 16 m and a combined swath exceeding 800 km.
Jiadan Dong, Yepei Chen, Xiaoling Chen, Qiangqiang Xu   +3 more
doaj   +1 more source

Neural Local Inter‐reflection Modeling for Garment Fold Rendering

Computer Graphics Forum, EarlyView.
Abstract Realistic garment rendering requires simulating complex multi‐bounce light paths within intricate fold geometries. In these regions, conventional path tracing is computationally expensive as light becomes trapped, necessitating high bounce counts for convergence.
Jooeun Son, Nuri Ryu, Gyoonseo Kim, Joo Ho Lee, Seungyong Lee   +4 more
wiley   +1 more source

АНАЛІЗ МОДЕЛЕЙ ОСВІТЛЕННЯ ФОНГА ТА БЛІНА ДЛЯ ЗАДАЧ РЕНДЕРИНГУ

Автоматизация технологических и бизнес-процессов
Розглянуто особливості використання моделей Фонга та Бліна при формуванні тривимірних графічних сцен у сучасних системах комп’ютерної графіки. Встановлено, що одним із трудомістких етапів процесу рендерингу є зафарбовування поверхонь, яке базується на ...
О. Н. Романюк, С. В. Котлик   +1 more
doaj   +1 more source

High Accuracy Solar Diffuser BRDF Measurement for On-Board Calibration in the Solar Reflective Band

Remote Sensing, 2023
In the solar reflective band, an on-board calibration method based on a solar diffuser (SD) can realize full aperture, full field of view, and end-to-end absolute radiometric calibration of optical remote sensors.
Zhiyuan Zhang, Hongyao Chen, Wenxin Huang, Xiaobing Zheng, Liming Zhang   +4 more
doaj   +1 more source

High‐Gloss SVBRDF Capture Using Bounce Light

Computer Graphics Forum, EarlyView.
Abstract Reflectance capture aims at the visual reproduction of an object under varying illumination. Past works differ substantially in their experimental overhead, from single‐ or few‐image approaches, that employ significant (often learned) priors at the expense of biased reconstructions, to more accurate approaches that tend to be time‐consuming ...
Tomáš Iser, Andrei‐Timotei Ardelean, Tim Weyrich   +2 more
wiley   +1 more source

Estimating Surface BRDF/Albedo Over Rugged Terrain Using an Extended Multisensor Combined BRDF Inversion (EMCBI) Model

, 2022
Land surface albedo is a crucial variable of earth energy budget and global climate change. Rugged terrain significantly impacts surface bidirectional reflectance distribution function (BRDF) and the subsequent albedo retrieval using satellite remote ...
Lin, Xingwen, Xiao, Qing, Liu, Qinhuo, Han, Yuan, Tang, Yong, Wen, Jianguang, You, Dongqin, Wu, Shengbiao   +7 more
core   +1 more source

Evaluating the potential of multi-view data extraction from small Unmanned Aerial Systems (UASs) for object-based classification for Wetland land covers

GIScience & Remote Sensing, 2019
Unmanned Aerial Systems (UASs) have the potential to provide multi-view data, but the approaches used to extract the multi-view data from UAS and investigation of their use in image classification are currently unavailable in publications to our best ...
Tao Liu, Amr Abd-Elrahman, Bon Dewitt, Scot Smith, Jon Morton, Victor L. Wilhelm   +5 more
doaj   +1 more source