Table 3 The relationship of two threshold classification methods.

From: Validation of leaf area index measurement system based on wireless sensor network

Method

Definition

Method 1

(t1 < H < t2 and S > t3) or (G > t4) or (R < t5and B < t5)

Method 2

(G > R + t1 and G > B + t2) or (G > t4) or (R < t5 & B < t5)