测绘通报 ›› 2018, Vol. 0 ›› Issue (9): 82-86.doi: 10.13474/j.cnki.11-2246.2018.0285

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Inversion of Leaf Area Index Based on Extreme Learning Machine Regression in Road Vegetation

LEI Yubin1, ZHU Shankuan2,3, GUO Yunkai3, LI Danna3, LIU Lei3, LIU Ning3   

  1. 1. The Second Surveying and Mapping Institute of Hunan Province, Changsha 410000, China;
    2. Shanghai Waterway Engineering Design and Consulting Company Limited, Shanghai 200000, China;
    3. Institute of Surveying and Mapping and Remote Sensing Applied Technology, Changsha University of Science & Technology, Changsha 410076, China
  • Received:2018-05-22 Revised:2018-07-20 Online:2018-09-25 Published:2018-09-29
  • Contact: 朱善宽。E-mail:2506272955@qq.com E-mail:2506272955@qq.com

Abstract:

The acquisition of LAI of road vegetation has an important implication for the monitoring of road vegetation growth and health status.Based on the GF-1 image data and the ground synchronous measured LAI data,the technology of extreme learning machine (ELM) was introduced to inversion modeling in the high-speed road area of Hunan Province.Compared with the traditional empirical regression and support vector machine (SVM) methods,the extreme learning machine is higher,RMSE is 0.501,and the prediction accuracy is 86.26%.The study can provide a reference for road vegetation health assessment.

Key words: remote sensing, leaf area index, inversion, GF-1 imaging, extreme learning machine

CLC Number: