基于不规则三棱柱分割法实时测算果树冠层体积
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李鹏,张明,戴祥生,王腾,郑永强,易时来,吕强
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Real-Time Estimation of Citrus Canopy Volume Based on Laser Scanner and Irregular Triangular Prism Module Method
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Peng LI,Ming ZHANG,XiangSheng DAI,Teng WANG,YongQiang ZHENG,ShiLai YI,Qiang LÜ
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表1 2种方法测量球形景观树体积
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Table 1 Estimation results of canopy volume of landscape trees using two methods
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植株序号
No. | 速度
Speed (m·s-1) | 测量体积
Measured volume (m3) | 长方体分割法
Cuboid module method | 不规则三棱柱分割法
Irregular triangular prism module method | 相对误差差值
The distance range of the relative errors | 计算体积
Estimated volume (m3) | 相对误差
Relative error | 计算体积
Estimated volume (m3) | 相对误差
Relative error | | 1 | 0.50 | 3.052 | 2.897 | 5.08% | 2.971 | 2.65% | 2.42% | | 1.00 | 2.878 | 5.70% | 2.955 | 3.18% | 2.52% | | 1.50 | 2.873 | 5.87% | 2.927 | 4.10% | 1.77% | | 2 | 0.50 | 3.247 | 3.033 | 6.59% | 3.170 | 2.37% | 4.22% | | 1.00 | 3.006 | 7.42% | 3.113 | 4.13% | 3.30% | | 1.50 | 2.927 | 9.86% | 3.061 | 5.73% | 4.13% | | 3 | 0.50 | 5.075 | 4.837 | 4.69% | 4.917 | 3.11% | 1.58% | | 1.00 | 4.777 | 5.87% | 4.906 | 3.33% | 2.54% | | 1.50 | 4.813 | 5.16% | 4.839 | 4.65% | 0.51% | | 4 | 0.50 | 3.740 | 3.533 | 5.53% | 3.567 | 4.63% | 0.91% | | 1.00 | 3.531 | 5.59% | 3.553 | 5.00% | 0.59% | | 1.50 | 3.529 | 5.64% | 3.574 | 4.44% | 1.20% | | 5 | 0.50 | 2.852 | 2.733 | 4.17% | 2.755 | 3.40% | 0.77% | | 1.00 | 2.722 | 4.56% | 2.737 | 4.03% | 0.53% | | 1.50 | 2.733 | 4.17% | 2.725 | 4.45% | -0.28% |
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