求翻译：本文设计了一个自动调焦系统，综合灰度差分函数与Roberts梯度和函数的特点，提出了改进的调焦评价函数，四领域灰度差绝对值之和函数作为调焦评价函数，系统可在1.5秒左右的时间完成自动调焦功能，实践证明了调焦系统和采用的评价函数能满足实际应用的要求。是什么意思？

This design of an automatic focusing system, integrated grayscale gradient differential functions and functions with the characteristics of Roberts, An improved focus evaluation function, the absolute difference of gray four areas and functions as a focus evaluation function, the system can 1.5 seco

This article has designed an automatic adjustment system, the grayscale differential function and Roberts gradient and characterized by function, proposed to improve the evaluation function, adjusting the focus area 4 grayscale rates absolute value and function as adjusting the focus of evaluation f

This article has designed an automatic focussing action system, the comprehensive gradation difference function and the Roberts gradient and the function characteristic, proposed the improvement focusing appraisal function, sum of function four domain gradation difference absolute value took the foc

This article has designed an automatic focusing system, integrated characteristics of gray and Roberts gradient difference functions and function, introduced improved focusing evaluation function, four areas of gray-scale and function as focusing evaluation function of the difference in absolute ter

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