基于单目视觉和激光扫描技术的油菜植株模型重建及株型参数测量

分别采用单目视觉和激光扫描技术对2个油菜品种中双6号和华油杂62号的植株进行三维重建,并在重建模型上完成了对株高、叶柄长、叶片长度和叶片面积等4个株型参数的测量。结果表明:使用单目视觉和激光扫描技术的重建结果均能真实地表现油菜植株的整体形态,叶片间无遮挡的中双6号油菜植株效果更好,测量误差在2.00%以内;形态复杂叶片间部分遮挡的华油杂62号油菜植株测量误差在3.00%以内。模型重建试验表明,利用单目视觉和激光扫描技术能够完成复杂植株的模型重建,并实现部分株型参数的测量,可以为作物的遗传育种提供数据支持。

3D model generation and phenotypic measurement of rapeseed plant based on monocular visio and laser scanning technology

The traditional phenotypic parameter measurement of rapeseed plant is often completed in manual way,which is time-consuming and destructive.Two rapeseed cultivars with different growth form including Zhongshuang 6 and Huayouza 62 were used to be measured with the monocular vision and laser scanning technology.3D models of the rapeseed plants were generated.Four phenotypic parameters were measured based on the 3D models generated.The results showed that it was actually demonstrated the holistic morphological characteristics of plant from the reconstructed results with different methods.The cultivar Zhongshuang 6 is relatively simple and much better.Compared with the reference value,the average errors of phenotypic parameter measure in the reconstruction model were within 2.00％.The cultivar Huayouza 62 is more intricate with the average errors of within 3.00％.It was concluded that the results of the phenotypic parameter measurements under the two reconstruction methods errors were minor compared with the reference value,which can meet the practical requirements of agri cultural production.It will provide data support for practical production.