ANALYZING RULES WITH OBJECT-BASED ANALYSIS TO IRRIGATED RICE CLASSIFICATION: A CASE STUDY OF NONGYASAI DISTRICT SUPANBURI PROVINCE, THAILAND

摘要

The fertile central plain of Thailand is suitable for agriculture, particularty the imigated nice. The authors analyzed multi-temporal satellite images Landsat-5 on July 27,2011, October 15,2011, October 31,2011, to obtain the irrigated rice acreage of Nongyasai, Supanburi province. This was performecd with object-baned analysis, including Vegetation Indices - NDVI, NDWI and Band Ratio, by analyzing a given rule set equation And then classifying the outcomes in terms of segmentation and rice growth period, from seeding stage up to the harvesting period. The results showed that the rule set and analysis led to satisfactory answer and fulfilled the classification objecttive of irrigated rice growth period, including the application of satellite data analysis in the other field.