Fig.5. The result of hydrometeor detection method for ground-based cloud radar from 15:00 to 22:00 on 18 August 2013 In Fig. (c), red indicates the cloud mask detected by the bilateral filter algorithm but not by the traditional algorithm, yellow indicates the cloud mask detected by both methods simultaneously, blue indicates the cloud mask missed by the bilateral filter algorithm compared to the traditional algorithm,and black dots indicate the cloud boundaries identified by the lidar feature detection algorithm
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