实验对比表明，这种改进的灰度对比度函数，计算时间复杂度较简单，对焦灵敏度高。

The comparison shows that the improved gray scale contrast function has simpler time computational complexity and higher focusing sensitivity.

youdao

实验表明，经过预处理后明显改善了对焦评价函数曲线的形状：曲线更加平滑，局部峰值得以去除，同时曲线灵敏度提高78%。

The experiments show that the shape of focusing measure curve is obviously improved after pre-processing, the curve is smoother, local peak is eliminated and curve sensitivity is improved by 78%.

youdao

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。

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.

youdao

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。

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.

youdao