Title
Wahrsis: A Low-Cost, High-Resolution Whole Sky Imager With Near-Infrared Capabilities
Abstract
Cloud imaging using ground-based whole sky imagers is essential for a fine-grained understanding of cloud formations, which can be useful in many applications. Some such imagers are available commercially, but their cost is relatively high, and their flexibility is limited. Therefore, we built a new daytime Whole Sky Imager (WSI) called Wide Angle High-Resolution Sky Imaging System ( WAHRSIS). The strengths of our new design are its simplicity, low manufacturing cost, and high image resolution. Our imager captures the entire hemisphere in a single picture using a digital camera with a fish-eye lens. The camera was modified to capture light across the visible and near-infrared spectral ranges. This paper describes the design of the device as well as the geometric and radiometric calibration of the imaging system.
Year
DOI
Venue
2016
10.1117/12.2052982
INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXV
Keywords
Field
DocType
Whole sky imager, Cloud monitoring, Fish-eye lens, Camera calibration, Near-infrared imaging
Radiometric calibration,Manufacturing cost,Remote sensing,Camera resectioning,Lens (optics),Artificial intelligence,Computer vision,Optics,Sky,Digital camera,Image resolution,Calibration,Physics
Journal
Volume
ISSN
Citations 
9071
0277-786X
16
PageRank 
References 
Authors
1.91
3
4
Name
Order
Citations
PageRank
Soumyabrata Dev16213.94
Florian M. Savoy2161.91
Yee Hui Lee310724.09
Stefan Winkler421621.60