[1] 汪小钦, 王苗苗, 王绍强, 等.基于可见光波段无人机遥感的植被信息提取[J].农业工程学报, 2015, 31(5):152-159. doi:  10.3969/j.issn.1002-6819.2015.05.022

WANG X Q, WANG M M, WANG S Q, et al. Extraction of vegetation information from visible unmanned aerial vehicle images[J]. Transactions of the Chinese Society of Agricultural Engineering, 2015, 31(5): 152-159. doi:  10.3969/j.issn.1002-6819.2015.05.022
[2] SELKOWITZ D J, GREEN G, PETERSIN B, et al. A multi-sensor lidar, multi-spectral and multi-angular approach for mapping canopy height in boreal forest regions[J]. Remote Sensing of Environment, 2012, 121(2):458-471. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=db33fbff1b96c1197c85bc14ff04d38c
[3] 侯红亚, 王立海, 徐华东, 等.目测法估测树高的误差分析[J].森林工程, 2012, 28(2):6-8. doi:  10.3969/j.issn.1001-005X.2012.02.002

HOU H Y, WANG L H, XU H D, et al. Error analysis of tree height estimation based on eye measurement[J]. Forest Engineering, 2012, 28(2):6-8. doi:  10.3969/j.issn.1001-005X.2012.02.002
[4] 冯仲科, 隋宏大, 邓向瑞, 等.三角高程法树高测量与精度分析[J].北京林业大学学报, 2007, 29(增刊2):31-35. http://www.cnki.com.cn/Article/CJFDTOTAL-LDGH200906005.htm

FENG Z K, SUI H D, DENG X R, et al.Survey and precision analysis of tree height by trigonometric leveling[J]. Journal of Beijing Forestry University, 2007, 29(Suppl.2):31-35. http://www.cnki.com.cn/Article/CJFDTOTAL-LDGH200906005.htm
[5] 冯仲科, 赵英琨, 邓向瑞, 等.三维前方交会法测量树高及其精度分析[J].北京林业大学学报, 2007, 29 (增刊2):36-39. http://www.cnki.com.cn/Article/CJFDTEMP-BJLY2007S2009.htm

FENG Z K, ZHAO Y K, DENG X R, et al. Measurement and precision analysis of tree height by 3D forward intersection[J].Journal of Beijing Forestry University, 2007, 29 (Suppl.2):36-39. http://www.cnki.com.cn/Article/CJFDTEMP-BJLY2007S2009.htm
[6] 冯仲科, 韩熙春, 周科亮, 等.全站仪固定样地测树原理及精度分析[J].北京测绘, 2003(1):28-30. doi:  10.3969/j.issn.1007-3000.2003.01.008

FENG Z K, HAN X C, ZHOU K L, et al. The analysis of forestry measuration principle and precision in fixed samples by total station[J].Beijing Surveying and Mapping, 2003(1):28-30. doi:  10.3969/j.issn.1007-3000.2003.01.008
[7] 谢鸿宇, 温志庆, 钟世锦, 等.无棱镜全站仪测量树高及树冠的方法研究[J].中南林业科技大学学报, 2011, 31(11):53-58. doi:  10.3969/j.issn.1673-923X.2011.11.011

XIE H Y, WEN Z Q, ZHONG S J, et al. Measure method research of tree height and tree crown by non-prism total station[J]. Journal of Central South University of Forestry and Technology, 2011, 31(11):53-58. doi:  10.3969/j.issn.1673-923X.2011.11.011
[8] 王智超, 冯仲科, 闫飞, 等.全站仪测树的内外业一体化方法研究[J].西北林学院学报, 2013, 28(6):134-138. doi:  10.3969/j.issn.1001-7461.2013.06.27

WANG Z C, FENG Z K, YAN F, et al. Integrated indoor and field forest measurement by using total station[J].Journal of Northwest Forestry University, 2013, 28(6):134-138. doi:  10.3969/j.issn.1001-7461.2013.06.27
[9] DEMETRIOS G, JEREMYS F, VIEENTES M. Challenges to estimating tree height via LiDAR in closed-canopy forests: a parable from Western Oregon[J]. Forest Science, 2010, 56(2):139-155. http://cn.bing.com/academic/profile?id=4cafa9f5e90a42a92cfd9dcd94bd044c&encoded=0&v=paper_preview&mkt=zh-cn
[10] ANDERSEN H E, REUTEBUCH S E, MEGAUGHEY R J. A rigorous assessment of tree height measurements obtained using airborne lidar and conventional field methods[J]. Canadian Journal of Remote Sensing, 2006, 32(5):355-366. doi:  10.5589/m06-030
[11] 邓向瑞, 冯仲科, 马钦彦, 等.三维激光扫描系统在立木材积测定中的应用[J].北京林业大学学报, 2007, 29(增刊2):74-77. http://www.cqvip.com/QK/95250X/2007S2/3000298662.html

DENG X R, FENG Z K, MA Q Y, et al. Application of 3D laser scanning system in measuring standing volume[J].Journal of Beijing Forestry University, 2007, 29(Suppl.2):74-77. http://www.cqvip.com/QK/95250X/2007S2/3000298662.html
[12] 吴宾, 余柏蒗, 岳文辉, 等.一种基于车载激光扫描点云数据的单株行道树信息提取方法[J].华东师范大学学报(自然科学版), 2013(2):38-49. doi:  10.3969/j.issn.1000-5641.2013.02.005

WU B, YU B L, YUE W H, et al. Method for identifying individual street trees from the cloud data of the vehicle-borne laser scanning points[J].Journal of East China Normal University(Natural Science), 2013(2):38-49. doi:  10.3969/j.issn.1000-5641.2013.02.005
[13] 金伟, 葛宏立, 杜华强, 等.无人机遥感发展与应用概况[J].遥感信息, 2009(1):88-92. doi:  10.3969/j.issn.1000-3177.2009.01.017

JIN W, GE H L, DU H Q, et al. A review on unmanned aerial vehicle remote sensing and its application[J].Remote Sensing Information, 2009(1):88-92. doi:  10.3969/j.issn.1000-3177.2009.01.017
[14] 张园, 陶萍, 梁世祥, 等.无人机遥感在森林资源调查中的应用[J].西南林业大学学报, 2011, 31(3):49-53. doi:  10.3969/j.issn.2095-1914.2011.03.011

ZHANG Y, TAO P, LIANG S X, et al. Research on application of UAV RS techniques in forest inventories[J].Journal of Southwest Forestry University, 2011, 31(3):49-53. doi:  10.3969/j.issn.2095-1914.2011.03.011
[15] ZARCO-TEJADA P J, DIAZ-VARELA R, ANGILERI V, et al. Tree height quantification using very high resolution imagery acquired from an unmanned aerial vehicle (UAV) and automatic 3D photo-reconstruction methods[J]. European Journal of Agronomy, 2014, 55(2):89-99. http://d.old.wanfangdata.com.cn/NSTLQK/NSTL_QKJJ0232587279/
[16] 李明泽, 范文义, 张元元.基于全数字摄影测量的林分立木高度量测[J].北京林业大学学报, 2009, 31(2):74-79. doi:  10.3321/j.issn:1000-1522.2009.02.011

LI M Z, FAN W Y, ZHANG Y Y. Measuring heights of standing trees based on digital photogrammetry[J].Journal of Beijing Forestry University, 2009, 31(2):74-79. doi:  10.3321/j.issn:1000-1522.2009.02.011
[17] 樊江川.无人机航空摄影测树技术研究[D].北京: 北京林业大学, 2014. http: //cdmd.cnki.com.cn/Article/CDMD-10022-1014327664.htm

FAN J C. Study of the tree measurement technology by UAV aerial photography[D]. Beijing: Beijing Forestry University, 2014. http: //cdmd.cnki.com.cn/Article/CDMD-10022-1014327664.htm
[18] 曹明兰, 张力小, 王强.无人机遥感影像中行道树信息快速提取[J].中南林业科技大学学报, 2016, 36(10): 89-93. http://d.old.wanfangdata.com.cn/Periodical/znlxyxb201610016

CAO M L, ZHANG L X, WANG Q.Rapid extraction of rural house information from UAV remote-sensing images[J]. Journal of Central South University of Forestry and Technology, 2016, 36(10): 89-93. http://d.old.wanfangdata.com.cn/Periodical/znlxyxb201610016
[19] 阳树洪.灰度图像阈值分割的自适应和快速算法研究[D].重庆: 重庆大学, 2014. http: //cdmd.cnki.com.cn/Article/CDMD-10611-1014042922.htm

YANG S H. Study on the adaptive and fast algorithm of gray scale image thresholding[D]. Chongqing: Chongqing University, 2014. http: //cdmd.cnki.com.cn/Article/CDMD-10611-1014042922.htm