With a fixed camera parameters and through thermal diffusion theory this paper proposed a method that greatly facilitates the depth calculation process and simplifies the division of diffusion region.
文中提出的固定相机内参数并结合热扩散的方法大大方便了深度计算的过程，并且有效简化了扩散区域的划分。
According to the results, the region was classified into 12 site types at a fixed similarity level, which were named by three-section name method (heat, water and nutrient).
研究地区共划分为12个类型，编制了立地类型表，并采用热量、水分、养分三段式命名法为备立地类型命名。
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