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Application of digital photogrammetry to measure distribution of tree postions |
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| Authors: | Zhang?Chao Zhang?Qing |
| Institution: | 1. National Engineering Research Center for Information Technology in Agriculture,Beijing 100089,P. R. China;Institute of Agriculture Remote Sensing and Information Application,Zhejiang University,Hangzhou 310027,P. R. China 2. College of Basic Sciences and Technology,Beijing Forestry University,Beijing 100083,P. R. China 3. Research Institute of Forest Resource Information Techniques,Chinese Academy of Forestry,Beijing 100091,P. R. China |
| Abstract: | The application of digital photogrammetry to measure distribution of tree positions with stereo image couple is introduced in detail, and the procedure of stereo vision applied in forestry environment is explored. Nonlinear error in measure model is adopted in the camera calibration; the interactive correlation matching is used under constraint of epipolar line and edge of tree detected by Canny operator. Results prove that application of digital photogrammetry technology to measure distribution of tree positions can meet demand of precision in experimental conditions. |
| Keywords: | spatial structure distribution of trees digital photogrammetry image matching |
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