MAPPING MAJOR CROPPING PATTERNS IN SOUTHEAST ASIA FROM MODIS DATA USING WAVELET TRANSFORM AND ARTIFICIAL NEURAL NETWORKS

被引：0

作者：

Son, N. T. ^{[1
]}

Chen, C. F. ^{[1
]}

Cru, C. R. ^{[2
]}

机构：

[1] Natl Cent Univ, Ctr Space & Remote Sensing Res, Jhongli, Taiwan

[2] Natl Cent Univ, Dept Civil Engn, Jhongli, Taiwan

来源：

XXII ISPRS CONGRESS, TECHNICAL COMMISSION III | 2012年 / 39-B3卷

关键词：

MODIS data; Croplands; Wavelet transform; Artificial neural networks (ANNs); Southeast Asia; CLASSIFICATION; SUPPORT;

D O I：

暂无

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Agriculture is one of the most important sectors in the economy of Southeast Asia countries, especially Thailand and Vietnam. These two countries have been the largest rice suppliers in the world and played a critical role in global food security. Yearly rice crop monitoring to provide policymakers with information on rice growing areas is thus important to timely devise plans to ensure food security. This study aimed to develop an approach for regional mapping of cropping patterns from time-series MODIS data. Data were processed through three steps: (1) noise filtering of time-series MODIS NDVI data with wavelet transform, (2) image classification of cropping patterns using artificial neural networks (ANNs), and (3) classification accuracy assessment using ground reference data. The results by a comparison between classification map and ground reference data indicated the overall accuracy of 80.3% and Kappa coefficient of 0.76.

引用

页码：421 / 425

页数：5

共 44 条

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