线阵全景相机检校模型研究

The Calibration Model of Linear Array Panoramic Cameras

  • 摘要: 目的 线阵全景相机通过线阵旋转来获取水平角可达360°场景的影像,将其应用于近景摄影测量可减少摄站数,避免影像拼接问题。分析了线阵全景相机检校的几何成像模型,推导了平差函数模型,并分别用模拟和实际全景控制场数据验证了该平差函数模型,结果表明该模型参数选择合理,正确描述了线阵全景相机的内部结构关系,是线阵全景相机的一种实用检校模型。

     

    Abstract: Objective In order to accurately and quickly extract the information of rubber woods,a new informa-tion extraction method of rubber woods distribution was designed based on textural features and multi-spectrum features of remote sensing images with high resolution,and the detail process as follow:firstly,choose suitable vegetable index;secondly,acquire the best texture extraction window throughsemi-variance statistical analysis of the images of vegetable index and multi-spectrum and extract tex-ture information of remote sensing images;at last,build new classification rules based on texture in-formation and spectrum information of remote sensing image with high resolution and realize the newmethod by using the arithmetic of C5.0decision tree.The new method was putted in practiced in re-mote sensing images with high resolution of GuangBa farm DongFang city,HaiNan Province.The re-sults showed that the producer’s accuracy,user’s accuracy and total accuracy of rubber woods is are81.00%,82.65%,and 83.50%respectively,and the kappa coefficient is 0.78.The results that com-paring with other classification methods indicated the method is valid for rubber woods identification.

     

/

返回文章
返回