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最近我阅读了 NVidia 的Mipmapping-Normal-Maps

在“估计正态变化”部分，它假设角度偏差的高斯分布并给出一个数字（对不起，我不能以新用户的身份发布图像，请参阅该论文中的图 2）。

那么我的问题是，Na 是如何用标准差的函数来表示的？

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The links doesn't work for me but I assume Na is what was represented normal distributed. The function for Na would be:

Na normal distributedf

with:

  • Na as the normal distributed value (x-axis value)
  • sigma () as the standard variance
  • f(Na) as the probability density (y-axis value)
  • mu (µ) as the expected value (usually the average value)
于 2013-03-13T19:22:16.013 回答