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Position: Home > Articles > Measurement and calculation methods of stem image information. Journal of Beijing Forestry University 2005,27 (1) 51-54

单株立木图像信息的提取与解算

作  者:
杨华;孟宪宇;刘燕;程俊
单  位:
北京林业大学省部共建森林培育与保护教育部重点实验室
关键词:
近景摄影测量;计算机视觉;树干直径
摘  要:
该文采用数码相机获取立木的图像信息 ,对单株立木图像信息的提取分别运用近景摄影测量DLT模型和双目立体视觉技术进行解算 ,解决了立木图像信息与立木二维坐标之间的解算问题 .基于近景摄影测量技术树木图像信息的二维处理方法 ,简化了解算方程 ,提高了求解的运算速度 .在提取单株立木形状参数时 ,采用计算机双目立体视觉技术存在着操作复杂、成本高的缺点 .实验结果表明 ,应用近景摄影测量技术提取单株立木图像信息的方法有效、可行 .
译  名:
Measurement and calculation methods of stem image information.
作  者:
YANG Hua1;MENG Xian-yu1; LIU Yan1; CHENG Jun2.1 The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, 100083, P. R. China; 2 Forestry Centre Management Bureau of Longhua County, Chengde 068150, P. R. China.
关键词:
close-range photogrammetry, computer vision, stem diameter
摘  要:
In the study, the authors investigated 2-D stem image formation collected by digital camera. The measurement of 2-D coordinate for stem information is based on close-range photogrammetry. The stem information is calculated in a simple manner, through the use of 2-D image manipulation methods. The study shows that the method is efficient and feasible. The application of computer vision technique and the difficulties in collecting stem image information are also discussed.

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