| Title |
Sky Condition Analysis using the Processing of Digital Images |
| Authors |
Seong-Ye Park ; Yeon-Ji Sim ; Seong-Kwan Hong ; An-Seop Choi |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2016.30.1.014 |
| Keywords |
Blind Pv System ; Sky Image ; Fisheye Lens ; Distortion |
| Abstract |
The accurate analysis of the outside sky conditions is necessary to increase the efficiency of blind PV system. To conduct the accurate analysis, this paper suggested a method to analyze the sky condition using a specific image processing technique. While a fisheye lens has a wide field-of-views, it causes a large distortion to the sky images. Therefore, this paper calculated the exchange ratio of sky images to consider a lens distortion. As results of the study, there was a difference of 7% to cloud area ratio F4 and F11. Also, it had a different result depending on the position of the cloud. |