多时相耕地覆盖提取和变化分析：一种结合遥感和空间统计的时空上下文方法

习文强, 杜世宏, 杜守基

Multi-temporal Cultivated Land Cover Extraction and Change Analysis: A Spatiotemporal Context Method Combining Remote Sensing and Spatial Statistics

XI Wenqiang, DU Shihong, DU Shouji

表6 2015—2019年5个时相上3种分类的整体精度和Kappa系数

Tab. 6 The overall accuracies and Kappa coefficients of five times for three classifications from 2015 to 2019

年份 分类方法 NOC PPC ST-PC OA K OA K OA K 2015 85.11 0.8462 87.37 0.8672 90.52 0.8993 2016 84.23 0.8359 88.28 0.8713 91.05 0.9113 2017 84.53 0.8427 87.54 0.8705 90.43 0.8947 2018 85.26 0.8471 88.32 0.8746 90.81 0.9016 2019 84.15 0.8303 87.27 0.8657 91.12 0.9092 平均值 84.66 0.8404 87.76 0.8699 90.79 0.9032