Comparison of Five Slope Correction Methods for Leaf Area Index Estimation From Hemispherical Photography
文献类型：期刊论文
| 作者 | Cao, Biao1; Du, Yongming1; Li, Jing1; Li, Hua1; Li, Li1; Zhang, Yang1; Zou, Jie1; Liu, Qinhuo1 |
| 刊名 | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
 |
| 出版日期 | 2015 |
| 卷号 | 12期号:9页码:14-26 |
| 关键词 | Average leaf inclination angle (ALIA) digital hemispherical photography (DHP) leaf area index (LAI) slope correction topographic mask |
| 通讯作者 | Du, YM (reprint author), Chinese Acad Sci, State Key Lab Remote Sensing Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China. |
| 英文摘要 | We compare five slope correction methods developed by Walter et al., Montes et al., Schleppi et al., Espana et al., and Gonsamo et al. (referred to as WAL, MON, SCH, ESP, and GON, respectively) using artificial fisheye pictures simulated by graphics software and a lookup table (LUT) retrieval method. The LUT is built by simulating the directional gap fraction as a function of leaf area index (LAI) and average leaf inclination angle (ALIA) using the Poisson law. LAI and ALIA estimates correspond to the case of the LUT that provides the lowest root-mean-square error between the observed gap fractions after slope correction and the simulated ones. Three LAI values (1.5, 3.5, and 5.5), four ALIA values (26.8 degrees, 45 degrees, 57.5 degrees, and 63.2 degrees), and three slope angles (0 degrees, 20 degrees, and 50 degrees) constituted 36 samples of random scenes. ESP is recommended because its results are accurate and independent on the leaf angle distribution (LAD), while GON only performs well for spherical LAD. The three other methods present less good performances with underestimation or overestimation of LAI and/or ALIA depending on the LAD, and the recommended order for them is MON, SCH, and WAL. |
| 研究领域[WOS] | Geochemistry & Geophysics ; Engineering, Electrical & Electronic ; Remote Sensing ; Imaging Science & Photographic Technology |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000359579000032 |
| 源URL | [http://ir.ceode.ac.cn/handle/183411/38128]  |
| 专题 | 遥感与数字地球研究所_SCI/EI期刊论文_期刊论文 |
| 作者单位 | 1.[Cao, Biao 2.Du, Yongming 3.Li, Jing 4.Li, Hua 5.Li, Li 6.Zhang, Yang 7.Liu, Qinhuo] Chinese Acad Sci, State Key Lab Remote Sensing Sci, Inst Remote Sensing & Digital Earth, Beijing 100101, Peoples R China 8.[Cao, Biao 9.Du, Yongming 10.Li, Jing |
| 推荐引用方式 GB/T 7714 | Cao, Biao,Du, Yongming,Li, Jing,et al. Comparison of Five Slope Correction Methods for Leaf Area Index Estimation From Hemispherical Photography[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2015,12(9):14-26. |
| APA | Cao, Biao.,Du, Yongming.,Li, Jing.,Li, Hua.,Li, Li.,...&Liu, Qinhuo.(2015).Comparison of Five Slope Correction Methods for Leaf Area Index Estimation From Hemispherical Photography.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,12(9),14-26. |
| MLA | Cao, Biao,et al."Comparison of Five Slope Correction Methods for Leaf Area Index Estimation From Hemispherical Photography".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 12.9(2015):14-26. |
入库方式： OAI收割
来源：遥感与数字地球研究所
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