月尺度农作物提取中GF-1 WFV纹理特征的应用及分析

月尺度农作物提取中GF-1 WFV纹理特征的应用及分析

王镕, 赵红莉, 蒋云钟, 何毅, 段浩

Application and analyses of texture features based on GF-1 WFV images in monthly information extraction of crops

WANG Rong, ZHAO Hongli, JIANG Yunzhong, HE Yi, DUAN Hao

表1 纹理特征量

Tab.1 Texture feature

统计量	计算公式
Mean(平均值)	- $\overset{L - 1}{\sum_{i = 0}} \overset{L - 1}{\sum_{i = 0}}$ i×p(i,j)
Var(方差)	$\overset{L - 1}{\sum_{i = 0}} \overset{L - 1}{\sum_{i = 0}}$ (i-μ)²×p(i,j)
Con(对比度)	$\overset{L - 1}{\sum_{i = 0}}$ n $\{\overset{L - 1}{\sum_{i = 0}} \overset{L - 1}{\sum_{i = 0}} i \times p (i, j)\}$
Hom(同质性)	$\overset{L - 1}{\sum_{i = 0}} \overset{L - 1}{\sum_{i = 0}} \frac{p (i, j)}{1 + {(i - j)}^{2}}$
Dis (非相似性)	$\overset{L - 1}{\sum_{i = 0}} \overset{L - 1}{\sum_{i = 0}} \|i - j\|$ ×p(i,j)
Ent(信息熵)	- $\overset{L}{\sum_{i = 0}} \overset{L}{\sum_{i = 0}}$ p(i,j)×lgp(i,j)
ASM(二阶矩)	$\overset{L}{\sum_{i = 0}} \overset{L}{\sum_{i = 0}} (p {(i, j))}^{2}$
Cor(相关性)	$\overset{L}{\sum_{i = 0}} \overset{L}{\sum_{i = 0}} \frac{(ij) p (i, j) - u_{i} u_{j}}{s_{i} s_{j}}$