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2 2种方法测算柑橘树冠层体积结果
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Table 2 Estimation results of citrus canopy volumes 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 | 3.082 | 2.569 | 16.65% | 2.918 | 5.32% | 11.32% | | 1.00 | 2.513 | 18.46% | 2.826 | 8.31% | 10.16% | | 1.50 | 2.466 | 19.99% | 2.771 | 10.09% | 9.90% | | 2 | 0.50 | 7.351 | 5.071 | 31.02% | 6.997 | 4.82% | 26.20% | | 1.00 | 4.908 | 33.23% | 6.797 | 7.54% | 25.70% | | 1.50 | 4.903 | 33.30% | 6.502 | 11.55% | 21.75% | | 3 | 0.50 | 2.490 | 2.172 | 12.77% | 2.409 | 3.25% | 9.52% | | 1.00 | 2.168 | 12.93% | 2.378 | 4.50% | 8.43% | | 1.50 | 2.141 | 14.02% | 2.349 | 5.66% | 8.35% | | 4 | 0.50 | 2.425 | 2.143 | 11.63% | 2.313 | 4.62% | 7.01% | | 1.00 | 2.137 | 11.88% | 2.293 | 5.44% | 6.43% | | 1.50 | 2.103 | 13.28% | 2.269 | 6.43% | 6.85% | | 5 | 0.50 | 4.148 | 3.212 | 22.57% | 3.922 | 5.45% | 17.12% | | 1.00 | 3.029 | 26.98% | 3.823 | 7.84% | 19.14% | | 1.50 | 3.085 | 25.63% | 3.795 | 8.51% | 17.12% | | 6 | 0.50 | 2.483 | 2.035 | 18.04% | 2.317 | 6.69% | 11.36% | | 1.00 | 2.035 | 18.04% | 2.310 | 6.97% | 11.08% | | 1.50 | 2.025 | 18.45% | 2.240 | 9.79% | 8.66% | | 7 | 0.50 | 3.776 | 3.113 | 17.56% | 3.552 | 5.93% | 11.63% | | 1.00 | 3.069 | 18.72% | 3.475 | 7.97% | 10.75% | | 1.50 | 2.988 | 20.87% | 3.357 | 11.10% | 9.77% | | 8 | 0.50 | 5.321 | 3.836 | 27.91% | 4.994 | 6.15% | 21.76% | | 1.00 | 3.771 | 29.13% | 4.931 | 7.33% | 21.80% | | 1.50 | 3.750 | 29.52% | 4.919 | 7.55% | 21.97% | | 9 | 0.50 | 4.252 | 3.572 | 15.99% | 4.007 | 5.76% | 10.23% | | 1.00 | 3.577 | 15.87% | 3.967 | 6.70% | 9.17% | | 1.50 | 3.446 | 18.96% | 3.846 | 9.55% | 9.41% | | 10 | 0.50 | 3.647 | 3.115 | 14.59% | 3.497 | 4.11% | 10.47% | | 1.00 | 3.045 | 16.51% | 3.379 | 7.35% | 9.16% | | 1.50 | 2.993 | 17.93% | 3.319 | 8.99% | 8.94% |
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