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1. Modeling of rapeseed at maturity stage using 3D unorganized point clouds and digital images | |||
CHANG Tingting,WANG Xingyu,ZHAI Ruifang | |||
Agronomy 15 September 2014 | |||
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Abstract:The 3D morphological expressin of a plant is important because this is the basis for building a functinonal-structural plant model to study the relationships between the structure, its environment, and its internal biology. Creating 3D plant models is often a difficult and laborious task especially to rapeseed because of its complexity and it has not been accomplished in the traditional ways. To make it easier and more natural, the integration of digital images and 3D unorganized point clouds from a digitizer provides a promising approach for rapeseed model generation. In the present study, 3D unorganized point clouds and digital images were incorporated in the generation of complex models of rapeseeds at maturity stage. Unorganized point clouds and image sequences were taken from different viewpoints using a 3D digitizer. The 3D unorganized points and image sequences were used for the automated registration of all data sets from all the viewpoints, which is pair-wise registration. Later, all the pair-wise registration parameters were used as initial transformation parameters for multiple registrations. The next procedure generated a surface model by triangulated irregular network using all the point clouds. The capabilities of our system were demonstrated through real data sets. Meanwhile, mesurements on some parameters such as branch locations, angles, lengths were implemented and compared to the parameters obtained by manual measurements. Experimental results showed that the average normal distances between the two scans were less than 0.3 mm after simultaneous registration, which indicated that the proposed methodology is effective and efficient. | |||
TO cite this article:CHANG Tingting,WANG Xingyu,ZHAI Ruifang. Modeling of rapeseed at maturity stage using 3D unorganized point clouds and digital images[OL].[15 September 2014] http://en.paper.edu.cn/en_releasepaper/content/4610117 |
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