Results 71 to 80 of about 1,253 (181)

Evaluation of Medium Spatial Resolution BRDF-Adjustment Techniques Using Multi-Angular SPOT4 (Take5) Acquisitions

Remote Sensing, 2015
High-resolution sensor Surface Reflectance (SR) data are affected by surface anisotropy but are difficult to adjust because of the low temporal frequency of the acquisitions and the low angular sampling.
Martin Claverie, Eric Vermote, Belen Franch, Tao He, Olivier Hagolle, Mohamed Kadiri, Jeff Masek   +6 more
doaj   +1 more source

Hypernetworks for Generalizable BRDF Representation

In this paper, we introduce a technique to estimate measured BRDFs from a sparse set of samples. Our approach offers accurate BRDF reconstructions that are generalizable to new materials. This opens the door to BDRF reconstructions from a variety of data sources.
Fazilet Gokbudak, Alejandro Sztrajman, Chenliang Zhou, Fangcheng Zhong, Rafal Mantiuk, Cengiz Öztireli   +5 more
openaire   +2 more sources

FROST-BRDF: A Fast and Robust Optimal Sampling Technique for BRDF Acquisition

IEEE Transactions on Visualization and Computer Graphics
Submitted to IEEE Transactions on Visualization and Computer Graphics (IEEE TVCG)
Miandji, Ehsan, Tongbuasirilai, Tanaboon, Hajisharif, Saghi, Kavoosighafi, Behnaz, Unger, Jonas, Miandji, Ehsan   +5 more
openaire   +4 more sources

Characterization of Scale Effects and Determination of Optimal Observation Scales for Bidirectional Reflectance in High-Resolution Remote Sensing of Land Surfaces

Remote Sensing
Land surface bidirectional reflectance distribution functions (BRDF) are critical for quantitative remote sensing but are significantly constrained by scale effects, limiting the interoperability of multi-resolution data and the accuracy of quantitative ...
Weikang Zhang, Hongtao Cao, Jianjun Wu, Xingfa Gu, Chang Wang, Menghao Zhang, Yanmei Wang, Chengcheng Zhang   +7 more
doaj   +1 more source

Synergizing BRDF correction and deep learning for enhanced crop classification in GF-1 WFV imagery

Frontiers in Remote Sensing
Accurate crop classification is essential for agricultural management, resource allocation, and food security monitoring. GF-1 Wide Field View (WFV) imagery suffers from Bidirectional Reflectance Distribution Function (BRDF) effects due to large viewing ...
Yuanwei Chen, Yang Li, Runze Li, Chongzheng Guo, Jilin Li   +4 more
doaj   +1 more source

Bidirectional Reflectance Sensitivity to Hemispherical Samplings: Implications for Snow Surface BRDF and Albedo Retrieval

Remote Sensing
Multi-angular remote sensing plays a critical role in the study domains of ecological monitoring, climate change, and energy balance. The successful retrieval of the surface Bidirectional Reflectance Distribution Function (BRDF) and albedo from multi ...
Jing Guo, Ziti Jiao, Anxin Ding, Zhilong Li, Chenxia Wang, Fangwen Yang, Ge Gao, Zheyou Tan, Sizhe Chen, Xin Dong   +9 more
doaj   +1 more source

Importance Sampling BRDF Derivatives

ACM Transactions on Graphics
We propose a set of techniques to efficiently importance sample the derivatives of a wide range of Bidirectional Reflectance Distribution Function (BRDF) models. In differentiable rendering, BRDFs are replaced by their differential BRDF counterparts, which are real-valued and can have negative values. This leads to a new source of variance arising from
Yash Belhe, Bing Xu, Sai Praveen Bangaru, Ravi Ramamoorthi, Tzu-Mao Li   +4 more
openaire   +3 more sources

Multi-Level Spectral Attention Network for Hyperspectral BRDF Reconstruction from Multi-Angle Multi-Spectral Images

Remote Sensing
With the rapid development of hyperspectral applications using unmanned aerial vehicles (UAVs), the traditional assumption that ground objects exhibit Lambertian reflectance is no longer sufficient to meet the high-precision requirements for quantitative
Liyao Song, Haiwei Li
doaj   +1 more source

Correction to: Techniques for BRDF evaluation [PDF]

The Visual Computer, 2021
Mislene Da Silva Nunes, Fernando Melo Nascimento, Gastão Florêncio Miranda Jr., Beatriz Trinchão Andrade   +3 more
openaire   +1 more source

Evaluation of MODIS and VIIRS BRDF Parameter Differences and Their Impacts on the Derived Indices

Remote Sensing
Multi-angle remote sensing observations play an important role in the remote sensing of solar radiation absorbed by land surfaces. Currently, the Moderate Resolution Imaging Spectroradiometer (MODIS) and Visible Infrared Imaging Radiometer Suite (VIIRS ...
Chenxia Wang, Ziti Jiao, Yaowei Feng, Jing Guo, Zhilong Li, Ge Gao, Zheyou Tan, Fangwen Yang, Sizhe Chen, Xin Dong   +9 more
doaj   +1 more source