3D Point Clouds of Wheat from RGB-images using Structure from Motion and Low-Cost Photogrammetry

This dataset contains the raw-data (RGB-images) and reconstructed point clouds of 6 different wheat (Triticum aestivum) genotypes. The plants were imaged at two time instances, 14 days and 35 days after planting, and from each genotype 10 instances were imaged, for a total of 120 imaging sessions (6 genotypes x 2 imaging days x 10 pots) resulting in the same number of point clouds. Data from the first imaging day (14 days after planting) shows 5 individual plants per pot, each pot containing plants from a single genotype. These multiple plants per pot had been thinned to a single plant per pot for the second imaging day (35 days after planting). The raw data of each imaging session consists of 140 RGB-images, each with a resolution of 4056x3040 pixels. Further, for each imaging session a three-dimensional point cloud of the plant(s) was reconstructed using the method described in https://doi.org/10.48550/arXiv.2504.16840. In addition to the above data the dataset contains three more csv-files. The first file is an assessment by a plant expert of the genotypes canopy architecture rating that ranges on a scale from 1 (extreme erectophile) to 10 (extreme planophile). The other two csv-files report measurements performed from the point-clouds for each plant, these measurements are defined in https://doi.org/10.48550/arXiv.2504.16840.

本数据集涵盖6个不同普通小麦（Triticum aestivum）基因型的原始RGB图像数据与重建三维点云数据。供试植株于播种后14天、35天两个时间节点完成成像；每个基因型设置10个重复样本，总成像单元数为120次（6个基因型 × 2个成像日期 × 10个盆钵），对应生成等量的三维点云数据。首次成像（播种后14天）时，每个盆钵内种植5株幼苗，且所有植株均来自同一基因型；第二次成像（播种后35天）前，已对每盆多余植株进行疏除，仅保留单株植株。每次成像的原始数据包含140张RGB图像，单张图像分辨率为4056×3040像素。此外，针对每次成像的植株，采用https://doi.org/10.48550/arXiv.2504.16840中所述方法重建得到其三维点云数据。本数据集还包含3个额外的CSV文件：第一个文件为植物专家对各基因型冠层结构的评分数据，评分区间为1（极端直立型）至10（极端平展型）；另外两个CSV文件记录了从各植株点云中提取的测量参数，相关参数定义详见https://doi.org/10.48550/arXiv.2504.16840。