摘要
介绍由摄像机图像抽取林木直径的方法、步骤 ,将度量误差模型算法应用到参数的求解当中 ,提出适合于林业野外作业的内、外参数分离策略 ,最后对文中算法、策略进行实际验证。结果表明 :1)从图像中重构林木直径是可行的 ;2 )由度量误差模型算法求解参数是一种很好的算法 ;3)将摄像机、内外参数分离 ,不仅减轻了繁重的林业野外作业 ,同时保证了三维重建精度 ;4 )单独考虑摄像机焦距 。
The approach that gathers forestry diameter by camera image is introduced in detail and the error-in-measure models algorithm is successfully applied to the parameters resolving. While the inner parameters and outer parameters decomposing maneuver that is fit to forestry fieldwork is provided. The algorithm and maneuver in this paper are illustrated finally. Results prove:1) The way that reconstructing forestry diameter from camera images is available; 2) It's a good algorithm that parameters are resolved by error-in-measure models algorithm; 3) Decomposing camera inner parameters and outer parameters not only decreases the heavy forestry field work but also ensures the 3D reconstructing precision; 4) Considering the camera focus length independently, the flexibility of practical operation is improved.
出处
《林业科学》
EI
CAS
CSCD
北大核心
2005年第2期16-20,共5页
Scientia Silvae Sinicae
基金
中国林业科学研究院基金 ( 2 0 0 1-3 0 )
自然科学基金 ( 3 0 2 710 79)资助项目
