Autofocusing (AF) criterion functions are critical to the performance of a passive
autofocusing system in automatic video microscopy. Most of the autofocusing criterion …

摘要针对光学透镜参数测量系统中的对焦问题, 设计了一种粗精结合的复合自动对焦方案.
在粗对焦过程中, 选用全局图像的方差函数作为清晰度评价函数, 用均值比较的爬山法实现焦面 …

Video-based autofocus has become a viable option for microscopes due to the availability of
fast microcomputers and cameras that provide high frame rates. The methods proposed plot …

Autofocusing is essential to high throughput microscopy and live cell imaging and requires
reliable focus measures. Phase objects such as separated single Chinese hamster ovary …

In order to develop an on-line optical lens measurement system, a dual autofocusing
algorithm consisting of coarse autofocusing and fine autofocusing is proposed to realize the …

Cell cultures are monitored to develop new drugs, to find efficient ways to produce vaccines
and to perform toxicity tests. The cells are cultivated in an incubator and the monitoring steps …