Usually in the atmospheric context, the top of the atmosphere is fully transparent and the bottom of the atmosphere (i.e., the planetary surface) is fully opaque. In Raysca, the currently implemented surface reflection models are a Lambertian reflector and the BRDF model presented in Section 3...
The illumination鈥搊bservation dependence of surface reflection is described by the bidirectional reflectance distribution function (BRDF). To account for the BRDF effect, we use the concept of geometry-dependent surface Lambertian-equivalent reflectivity (GLER), which is derived from the top-...
This factor is a function of the surface normal, light direction, and the facet normal (a), given by the formula GAF=min[1,max[0,2(N.a)(N.V)(V.a),2(N.a)(N.L)(V.a)]] In addition, the model includes an interreflection factor (IF), modeling up to two bounces of light ...
2 - 大小:118m 目录:Lesson 1 Properties of light and Lambertian reflection 资源数量:165,其他_其他,Lesson 1 Properties of light and Lambertian reflection/1,Lesson 1 Properties of light and Lambertian reflection/2,Lesson 1 Properties of light and Lamberti
1) Lambertian reflection of the surface 朗伯假设 1. In the field of thermal infrared remote sensing the computation of the effect is often simplified under two assumptions: one is theLambertian reflection of the surface;another is the isotropic downward thermal radiance of atmosphere. ...
Lambertian surface reflection model is replaced by Oren-Nayar reflection model. 文中提出了一种针对粗糙物体的表面反射模型,即用Oren-Nayar模型代替通用的朗伯体表面反射模型(Lamber-tian surface reflection model),并基于透视投影从明暗恢复形状(shape from shading),对图像进行三维重建,此三维重建具有很高的现实意...
In this paper, the deterministic channel model of terahertz inter satellite communication link is studied by using ray tracing theory. Due to the high frequency of terahertz , the influence of surface roughness was considered in the reflection and...
Atmospheric correction was firstly performed by assuming that the groud is aLambertiansurface. 本文介绍了一种大气订正的新方法:BRDF──大气订正环,这种方法首先在假设地面是朗伯体的条件下进行大气订正,通过一系列在不同成象几何条件下观测值的订正结果,在BRDF模型库中寻找一种最能描述这些数据的模型,最后根据反...
For each candidate material, as indicated by step 212, a candidate spectral signature is estimated at step 214 by the specially programmed computing system for each image based on acquisition geometry, the imaging modality, surface reflection parameters from a bi-directional reflectance distribution ...
The Ozone Monitoring Instrument (OMI) cloud and NO2 algorithms use a monthly gridded surface reflectivity climatology that does not depend upon the observation geometry. In reality, reflection of incoming direct and diffuse solar light from land or ocean surfaces is sensitive to the sun–sensor geo...