A COMPUTATIONALLY CHEAP TRICK TO DETERMINE SHADOW IN A VOXEL MODEL

Author:

Gorte B. G. H.,Zhou K.,van der Sande C. J.,Valk C.

Abstract

Abstract. Representation of scenes on the Earth surface by using voxels is gaining attention because of its suitability for integrating heterogeneous data sources in simulations and quantitative models. Computation of shadows in such models is needed, for example, to obtain crop suitability of agricultural fields in the presence of trees and buildings, or to analyze urban heat island causes and effects. We present an efficient algorithm to compute which of the voxels in a dataset receive direct sunlight, given the solar azimuth and elevation angles. The algorithm can work with multiple (sparse and dense) voxel storage strategies.

Publisher

Copernicus GmbH

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Prediction of optimal 3D printing orientation using vertically sparse voxelization and modified support structure tomography;International Journal of Clothing Science and Technology;2023-08-04

2. VOXELISATION AND VOXEL MANAGEMENT OPTIONS IN UNITY3D;ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences;2022-10-14

3. Voxelisation Algorithms and Data Structures: A Review;Sensors;2021-12-09

4. Integration of Voxel Models with GeoSOT-3D Grids based on Coordinate Matching;IOP Conference Series: Earth and Environmental Science;2021-02-01

5. Detecting ineligible features in agricultural fields on multitemporal high resolution satellite images using a two-stage DNN architecture;Image and Signal Processing for Remote Sensing XXV;2019-10-07

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