|
|||||
|
|
| 作物面积获取的视觉测距建模 | |
| 引用本文： | 马蓉,毛恩荣,杨邦杰,宋正河,汪庆发.作物面积获取的视觉测距建模[J].江苏大学学报(自然科学版),2006,27(3):197-201. |
| 作者姓名： | 马蓉 毛恩荣 杨邦杰 宋正河 汪庆发 |
| 作者单位： | 1. 中国农业大学,工学院,北京,100083;石河子大学,机械电气工程学院,新疆,石河子,832003 2. 中国农业大学,工学院,北京,100083 3. 农业部,农业资源监测总站,北京,100026 |
| 摘 要： | 针对作物分类面积车载式地面调查系统测算模型确定问题，基于直接标定法设计了测距试验，提出用麦夸特法求解只包含光轴倾角的单因素模型，并用Matlab实现算法．方差分析结果表明所得模型预测精度优于理论模型．模拟实际工作情况，加入高差因素，进行了旋转正交试验，所得二次多项式回归模型预测精度比相应高差水平下该单因素模型略低，从而论证了该单因素模型不仅有效而且较优． |
| 关 键 词： | 作物面积 地面调查 视觉测距 直接标定 测算模型 正交旋转 非线性拟合 |
| 文章编号： | 1671-7775(2006)03-0197-05 |
| 修稿时间： | 2005年12月9日 |
Visual ranging experimental study on crop acreage estimation |
|
| MA Rong,MAO En-rong,YANG Bang-jie,SONG Zheng-he,WANG Qing-fa.Visual ranging experimental study on crop acreage estimation[J].Journal of Jiangsu University:Natural Science Edition,2006,27(3):197-201. | |
| Authors: | MA Rong MAO En-rong YANG Bang-jie SONG Zheng-he WANG Qing-fa |
| Abstract: | Aimed to determine the acreage-estimating model of on-board ground sampling system the range-measuring test is designed according to direct calibration method.A single factor model is given and its arithmetic is implemented with Matlab based on Marquardt.The variance analysis shows that it excels the theoretical model in prediction.The real working condition was simulated with height diffe-(rence) factor being added in,the orthogonal rotation test is performed and a quadratic polynomial regression model is derived.With better predicted values,the forementioned single factor model is demonstrated not only valid but also superior. |
| Keywords: | crop acreage ground survey range-measuring with computer vision direct calibration estimating model orthogonal rotation nonlinear fitting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |