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《2017全国植物表型组学研讨会摘要集》2017年
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Active camera placement for 3D reconstruction of plant shoots

Tony Pridmore  
【摘要】:Three-dimensional(3 D) models of plants are urgently needed to support both phenotyping and simulation-based studies such as photosynthesis modelling.However,the construction of accurate 3 D plant models is a challenging problem as plants are complex objects with an intricate leaf structure,often consisting of thin and highly reflective surfaces that vary in shape and size and form incredibly dense,crowded scenes.We address these issues by taking an active vision approach to image acquisition:rather than use the same camera positions for all plants our technique seeks to acquire the images needed to reconstruct the plant at hand,tuning camera placement to match its individual structure.Our method is also novel in that it combines volumetric and surface based reconstruction methods and determines the necessary images based on analyses of small voxel clusters.We describe a fully automatic plant modelling/phenotyping cell comprising of a UR5 robot and an LT360 EX high precision turntable.By using a standard off-the-shelf 2 D camera we overcome difficulties associated with laser-based plant reconstruction methods.The 3 D models produced are compared with those obtained from fixed cameras and evaluated by comparison with data obtained by X-ray u.-computed tomography.
【作者单位】:University of Nottingham
【分类号】:Q94;TP391.41

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