Individual Urban Tree Species Classification Using Very High Spatial Resolution Airborne Multi-Spectral Imagery Using Longitudinal Profiles

Remote Sensing

Kongwen Zhang¹ 

关键词: classification;    urban;    high spatial resolution;    multi-spectral;    longitudinal profiles;    trees species;    decision trees;   

DOI  :  10.3390/rs4061741

来源: mdpi

【 摘 要 】

Individual tree species identification is important for urban forest inventory and ecology management. Recent advances in remote sensing technologies facilitate more detailed estimation of individual urban tree characteristics. This study presents an approach to improve the classification of individual tree species via longitudinal profiles from very high spatial resolution airborne imagery. The longitudinal profiles represent the side view tree shape, which play a very important role in individual tree species on-site identification. Decision tree classification was employed to conduct the final classification result. Using this profile approach, six major species (Maple, Ash, Birch, Oak, Spruce, Pine) of trees on the York University (Ontario, Canada) campus were successfully identified. Two decision trees were constructed, one knowledge-based and one derived from gain ratio criteria. The classification accuracy achieved were 84% and 86%, respectively.

【 授权许可】

CC BY   
© 2012 by the authors; licensee MDPI, Basel, Switzerland.