... 散焦脉冲响应：defcused impulse response 散焦斑点照相术：defocused speckle photography 散焦，去焦：defocusing ...
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deflection defocusing [电子] 偏转散焦
self-defocusing 自散焦 ; 自散焦作用
defocusing coefficient [光] 散焦系数
defocusing lens 发散透镜
transient self-defocusing 瞬变自散焦
transient thermal defocusing 瞬变热散焦
defocusing effect 去焦效应 ; 散焦效应
It is based on frequency spectrum but the frequency spectrum of a defocusing image is not needed to calculate. The algorithm accuracy can be as high as 4% and its robustness is good.
算法适用于任意目标物体,尽管是基于频谱的,但是并不需要计算离焦图像的频谱,算法精度可达4%,鲁棒性良好。
参考来源 - 一种基于频谱分析的离焦深度自动对焦法·2,447,543篇论文数据，部分数据来源于NoteExpress
Experimental results showed that reasonable defocusing value should be adopted in order to get better weld seam shaping quality.
结果表明：只有采用合适的离焦量，才有可能获得较好的焊缝成形质量。
This approach can not only eliminate defocusing effect of optical system caused by temperature change, but also make the aerial digital camera be smaller and less weighty.
这种方法既能有效减小光学系统在不同温度下像面的热离焦，又有利于航空相机小型化、轻量化设计。
热散焦效应；
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