Many auto focus algorithms base on focus value curves, and they do not consider the correlation between sampling and image characteristic. 許多的自動對焦演演算法基於清晰度值的曲線,但是他們並沒有考慮到取樣位置與影像的特性。
A interpolation formula for densing finite sampling points is given. 給出了用於有限樣點加密的內插公式。