查询词典 depth of focus

In its reflection over the reality, art comes as a mirror with a certain angle of reflection, and image and the depth of focus depending on the angle; the reflection is always accompanied with persistent blind spots which I would like to leave to my viewers.

艺术若反映现实，艺术便是一种镜效，它有呈现的角度，以及因角度而产生的观照和景深，它会有死角，有永远观照不到的空间，我把这个空间留给了观众。

The application of an appropriate apodization film to an ordinary lens makes the point amplitude response asymptotic to a Dirac-delta function, or causes an arbitrarily narrow depth of focus. This implicates that we may achieve lateral or axial superresolution through implementing an apodization film.

运用适当形式的光瞳滤波器可以改变成像系统点振幅响应的分布，使其具有类似于冲击函数(Dirac-delta函数)的形式，这样就有可能实现光学超分辨，但变迹术的运用往往会因其强烈的旁瓣效应而导致成像系统对比度的急剧下降。

Oscar-winning epic director William Wyler's cinematographer, Gregg Toland, known for his depth of focus camerawork in previous films such as Citizen Kane (1941 and The Little Foxes (1941) contributed his talent to the three-hour long black and white film masterpiece with richly-textured and crisp images, deep-focus shots, and framed scenes.

威廉 怀勒的摄影师格莱格陀兰德以其以前拍摄中的深焦摄影闻名，如1941年的《公民凯恩》Citizen Kane (1941)和小狐狸The Little Foxes (1941)，他的才华使这部黑白电影更加出色，其中他使用了大量模糊的转换很快的影象，深焦镜头和。

This system uses a cubic phase element and digital image processing to increase the depth of focus in keeping the same illumination and resolution.

设计了一个光学/数字成像系统，该成像系统利用三次位相元件辅以数字图像处理技术，在保持系统光通量及分辨率不变的前提下，提高了光学系统焦深。

The depth of focus and depth of field of KBA microscope are about 1 mm and 50 mm respectively.

并且由模拟可知，掠入射角对成像的影响很大。

The lens determines the field of view, the depth of focus, and other optical factors that directly affect the quality of the image detected by the camera.

该透镜确定视野，景深和其他直接影响图像质量的光学参量。

The lens determines the field of view, the depth of focus, and other optical factors the directly affect the quality of the image detected by the camera.

透镜确定视野，深度焦点，并且其它光学因素这个图像质量查出由这台照相机的直接地影响。

The main outcome measures were uncorrected distant visual acuity , best corrected distant visual acuity , uncorrected near visual acuity , distant-corrected near visual acuity , the best corrected near visual acuity , defocus curves and depth of focus, the rate of posterior capsule opacification of the study group, IOL decentration distance of the study group. A questionnaire was applied to evaluate the visual function and rate of spectacles usage.

术后检查内容包括：术后裸眼远视力、最佳矫正远视力、裸眼近视力、矫正远视力时的近视力、最佳矫正近视力；在两组患眼中选择最佳矫正远视力≥0.9的患眼进行焦点深度及离焦曲线测量；观察实验组后囊膜混浊情况；选取实验组的部分病例进行散瞳裂隙灯照相测量人工晶状体偏中心的距离。

A novel method for measuring dense-line depth of focus of a lithographic projection system is proposed.

提出了一种检测光刻机投影物镜密集线焦深的新技术。

When breaking imaging rules leads to out-of-focus, we need the machine vision system to adjust its optical parameters quickly and intelligently. So we can get clear and usable images. On the other aspect, out-of-focus only depends on the optical parameters which contain the depth information of objects. By using the information, we can recover the three-dimensional image of the objects.

当违背成像规律产生离焦时，一方面需要机器视觉系统能够智能、快速的调节光学参数以聚焦，从而得到清晰、可用的图像，保证机器视觉系统的正常运行；另一方面离焦程度与光学参数相关，其中隐含有景物的深度信息，利用此信息，可以恢复出景物的三维形貌。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。