• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Transactions of the ASABE >Use of nontopographic stereophotogrammetry to measure morphological characteristics of soybean plants
【24h】

Use of nontopographic stereophotogrammetry to measure morphological characteristics of soybean plants

机译：使用非地形立体摄影测量法测量大豆植物的形态特征

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new method of measuring soybean geometry via stereophotogrammetry using a hand-held camera was developed and compared with existing approaches. Photographs were taken from both field and greenhouse-reared "Flyer" soybean plants. Leaf lengths were calculated from measurements of the three-dimensional coordinates of leaf tips and petioles. The accuracy of calculated coordinates was improved considerably by, the Direct Linear Transformation (DLT) method with corrections for lens distortion. Because lens distortion is considerable, corrections are required for tile proposed approach. The results also showed that strong linear relationships existed between leaf lengths and leaf areas and were statistically different for lateral and terminal leaves (leaves on the opposite sides and leaves on the current terminal of the trifiolate leaf stalk, respectively). Validation revealed high agreement between measured and predicted leaf areas. Good linear relationships exist between leaf lengths and leaf dry, weights. Further validations showed that the predicted leaf length/dry, weight relationship is consistent with observations. The method is also capable of calculating leaf angles, a key, measure for plant morphological reconstruction, and would be useful it? growth chamber studies.
机译：开发了一种使用手持相机通过立体摄影测量法测量大豆几何形状的新方法，并将其与现有方法进行了比较。照片来自田间和温室饲养的“ Flyer”大豆植物。通过测量叶尖和叶柄的三维坐标来计算叶长。通过校正透镜变形的直接线性变换（DLT）方法，大大提高了计算坐标的准确性。由于透镜畸变很大，因此需要对提出的方法进行校正。结果还表明，叶长与叶面积之间存在强线性关系，并且在侧叶和末端叶（分别为三叶叶茎的相对侧和当前末端的叶）上具有统计学差异。验证显示，测得的叶面积与预测的叶面积之间具有高度一致性。叶片长度与叶片干重之间存在良好的线性关系。进一步的验证表明，预测的叶长/干重关系与观察结果一致。该方法还能够计算叶片角，这是植物形态重建的关键，并且是否有用？生长室研究。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号