Abstract：The difference analysis of spectrum among tree species and the improvement of classification algorithm are the difficult points of extracting tree species information using remote sensing images, and are also the keys to improving the accuracy in the tree species information extraction in farmland returned to forests area. TM images were selected in this study, and the spectral indexes that could distinguish tree species information were filtered by analyzing tree species spectrum. Afterwards, the information of tree species was extracted using improved support vector machine algorithm. Although errors and confusion exist, this method shows satisfying results with an overall accuracy of 81.7%. The corresponding result of the traditional method is 72.5%. The method in this paper can achieve a more precise information extraction of tree species and the results can meet the demand of accurate monitoring and decision-making. This method is significant to the rapid assessment of project quality.
Key words：Remote sensing;Spectrum;Support vector machine;Tree species
吴 见, 彭道黎*. 基于改进支持向量机算法的退耕地树种信息提取 [J]. 光谱学与光谱分析, 2011, 31(04): 1038-1041.
WU Jian, PENG Dao-li*. Tree Species Information Extraction of Farmland Returned to Forests Based on Improved Support Vector Machine Algorithm . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(04): 1038-1041.
[1] HUANG Jian-wen, JU Hong-bo, ZHAO Feng, et al(黄建文，鞠洪波，赵 峰，等). Journal of Remote Sensing(遥感学报), 2007, 11(6): 899. [2] YANG Xiao-hui, CI Long-jun(杨晓晖，慈龙骏). World Forestry Research(世界林业研究), 2006, 19(6): 11. [3] YANG Cun-jian, LIU Ji-yuan, ZHANG Zeng-xiang, et al(杨存建，刘纪远，张增祥，等). Journal of Remote Sensing(遥感学报), 2002, 6(3): 205. [4] MA Chao-fei, MA Jian-wen, HASI Ba-gan, et al(马超飞，马建文，哈斯巴干，等). Journal of Soil and Water Conservation(水土保持学报), 2001, 15(4): 20. [5] TONG Hui-jie, FENG Zhong-ke, ZHANG Yan-lin(仝慧杰，冯仲科，张彦林). Journal of Beijing Forestry University(北京林业大学学报), 2007, 29(Supp. 2): 160. [6] SUN Hua, LIN Hui, XIONG Yu-jiu, et al(孙 华，林 辉，熊育久，等). Remote Sensing Information(遥感信息), 2006，(4): 57. [7] Buddenbaum H, Schlerf M, Hill J. International Journal of Remote Sensing, 2005, 26(24): 5453. [8] XIE Min, LI Shu, JIANG Fei, et al. Chinese Science Bulletin, 2009, 54(2): 304. [9] WANG Li-wen, NIU Zheng, WEI Ya-xing(王莉雯，牛 铮，卫亚星). J. Infrared Millim. Waves(红外与毫米波学报), 2007, 26(6): 456. [10] PENG Guang-xiong, HE Yu-hua, LI Jing, et al(彭光雄，何宇华，李 京，等). J. Infrared Millim. Waves(红外与毫米波学报), 2007, 26(1): 22. [11] ZHANG Zhao, ZHANG Su, ZHANG Chen-xi, et al(张 炤，张 素，章琛曦，等). Journal of System Simulation(系统仿真学报), 2005, 17(10): 2355. [12] TANG Hao, LIAO Yu-he, SUN Feng, et al(唐 浩，廖与禾，孙 峰，等). Journal of Xi’an Jiaotong University(西安交通大学学报), 2009, 43(7): 40. [13] LIN Chun-fu, WANG Sheng-de. IEEE Transactions on Neural Networks, 2002, 13(2): 464. [14] BAO Xin, DAI Lian-kui(包 鑫，戴连奎). Journal of Chemical Industry Engineering(化工学报), 2009, 60(7): 1739.
