Journal
BREEDING SCIENCE
Volume 72, Issue 1, Pages 75-84Publisher
JAPANESE SOC BREEDING
DOI: 10.1270/jsbbs.21068
Keywords
3D modeling; measurement; multi-view; camera; image; photogrammetry
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Funding
- JST CREST [JPMJCR16O1]
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In this study, an all-around 3D plant modeling system was developed using images and is capable of measuring plants non-destructively without any contact. The system utilizes a method of 3D reconstruction from multiple images and enables 3D modeling by simply capturing images with a camera. The image-based method offers flexibility as it can use commercially available products and accommodate different plant shapes and sizes.
In this study, we developed an all-around 3D plant modeling system that operates using images and is capable of measuring plants non-destructively without any contact. During the fabrication of this device, we selected a method capable of performing 3D model reconstruction from multiple images. We then developed an improved SfM-MVS (Structure from Motion / Multi-View-Stereo) method that enables 3D reconstruction by simply capturing images with a camera. The resulting image-based method offers a high degree of freedom because the hardware and software can comprise commercially available products, and it permits the use of one or more cameras according to the shape and size of the plant. The advantages of the image-based method are that 3D reconstruction can be conducted at any time as long as the images are already taken, and that the desired locations can be observed, measured, and analyzed from 2D images and a 3D point cloud. The device we developed is capable of 3D measurements and modeling of plants from a few millimeters to 2.4 m of height using this method. This article explains this device, the principles of its composition, and the accuracy of the models obtained from it.
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