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Determining rapeseed lodging angles and types for lodging phenotyping using morphological traits derived from UAV images
rapeseed lodging angles lodging phenotyping UAV images
2024/4/1
Crop lodging detrimentally affects crop yield and mechanical harvest efficiency. Traditional remote sensing-based methods primarily focus on the identification and area extraction of lodging using ima...
基于双目立体视觉的苗期玉米株形测量（Measurement of Maize Seedling Morphological Traits Based on Binocular Stereovision）
玉米 株形特征 测量
2009/8/11
将田间正常生长的待测玉米植株带土移至测定台上，标定双目立体视觉系统，提取、分割叶片图像，以Douglas-Peucker多边形法逼近叶片边缘,去除两幅对应图像中没有匹配关系的多边形顶点，结合投影矩阵计算出叶片边缘点的三维坐标。分别投影叶片边缘点到植株平面和植株水平平面，对投影的离散点分段二次拟合、Cardinal样条插值，得到代表叶片形状的曲线，计算出叶长、叶片着生高度、茎叶夹角、叶片方位角等株形...