We revised frequency spectrum functions by using weighting factor - the distance between direct component and alternating component, and improved the acuity of focus measure curve.
提出用交流分量到直流分量的距离作为加权因子对频谱评价函数进行改进，有效地提高了对焦评价曲线的灵敏度。
参考来源 - 数字自动对焦技术的理论及实现方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The drive tool component (100) includes alternating flutes (104) and lobes (106) and has a conical section (108).
驱动工具部件(100)包括交替的凹槽(104)和凸齿(106)，并且具有锥形部分(108)。
We revised frequency spectrum functions by using weighting factor - the distance between direct component and alternating component, and improved the acuity of focus measure curve.
提出用交流分量到直流分量的距离作为加权因子对频谱评价函数进行改进，有效地提高了对焦评价曲线的灵敏度。
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