Title
Analyzing growing plants from 4D point cloud data
Abstract
Studying growth and development of plants is of central importance in botany. Current quantitative are either limited to tedious and sparse manual measurements, or coarse image-based 2D measurements. Availability of cheap and portable 3D acquisition devices has the potential to automate this process and easily provide scientists with volumes of accurate data, at a scale much beyond the realms of existing methods. However, during their development, plants grow new parts (e.g., vegetative buds) and bifurcate to different components --- violating the central incompressibility assumption made by existing acquisition algorithms, which makes these algorithms unsuited for analyzing growth. We introduce a framework to study plant growth, particularly focusing on accurate localization and tracking topological events like budding and bifurcation. This is achieved by a novel forward-backward analysis, wherein we track robustly detected plant components back in time to ensure correct spatio-temporal event detection using a locally adapting threshold. We evaluate our approach on several groups of time lapse scans, often ranging from days to weeks, on a diverse set of plant species and use the results to animate static virtual plants or directly attach them to physical simulators.
Year
DOI
Venue
2013
10.1145/2508363.2508368
ACM Trans. Graph.
Keywords
Field
DocType
central importance,plant species,static virtual plant,acquisition device,plant growth,plant component,acquisition algorithm,accurate localization,point cloud data,accurate data,Studying growth
Computer vision,Data mining,Artificial intelligence,Point cloud,Mathematics
Journal
Volume
Issue
ISSN
32
6
0730-0301
Citations 
PageRank 
References 
29
1.19
42
Authors
6
Name
Order
Citations
PageRank
Yangyan Li148917.04
Xiaochen Fan2403.74
Niloy J. Mitra33813176.15
Daniel Chamovitz4291.19
Daniel Cohen-Or510588533.55
Baoquan Chen62095111.30