Sky Image-Based Localized, Short-Term Solar Irradiance Forecasting for Multiple PV Sites via Cloud Motion Tracking

Figure 15

(a) Cloud boundary points extracted from “bwboundaries” function, (b) selected 10 points closer to the center, (c) selected boundary locations on the image captured from the camera placed at location 1, (d) a selected point , (e) mapped points for the selected point for different CBHs on the image taken from the camera placed at location 2, and (f) the maximum CC received for different CBHs (blue) and the pixel difference between the center point of the search window to the maximum CC point for CBHs (brown).

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