查询词典 depth of field

It always gives very smooth backgrounds; it allows to make amazing effects of selective depth of field.

它总是给背景非常顺利，它允许利用领域的深度惊人的选择性影响。

Extension ratio of the depth of field for wavefront coding imaging system.

扩大景深的波前编码成像系统特性分析。

This allows you to create depth of field with the illusion of a three dimensional interface.

这允许你利用三维空间的错觉创建景深。

This is true for every super bright lens: in the viewfinder you see the depth of field of the lens at about f/4 or so.

这适用于每一个超明亮镜头：在取景器中看到的镜头深入实地的约2 / 4左右。

The thesis adopted depth of field technique, lens filter technique, and proper project technique to eliminate image noise in the process of precise curve grinding from origin, and obtain the good image quality accordingly.

通过将景深技术、光源和滤镜技术相结合，辅以正确的投射方式，从源头上消除了精密曲线磨削过程中的噪声影响，保证了图像采集的质量。

The depth of field of a lens is its ability to keep in focus objects of varying heights or objects located at various distances from the camera.

一个镜头之景深使其能够于不同高度目标物或目标物处于由摄像机不同距离时保持在焦。

For example,when the camera moves from a sunlit to a shaded area within a shot ,it is often necessary to change exposure. The iris diaphragm of the lens can be changed,but this would change the depth of field and may be more noticeable than shutting down the variable shutter .

例如，一次摄像中当相机把镜头从阳光充足的地方移动到阴暗的地方时，必然需要改变曝光大小，镜头的可变光圈可以改变，但可能会影响景深，回比你关闭可变快门影响效果更大。

Finally, a large depth-of-field portable three-dimensional laser scanner with measurement precision of 0.06 mm is developed successfully.

在以上研究工作的基础上，成功开发出了一种景深范围大、测量精度高的便携式三维激光扫描系统。

The underwater photomicrography optical system against little bubbles is analysed. The main technical indexes of optical system and the signify parameters of image gathering system are ascertained. Some key techniques such as depth of field, lighting, etc.

分析了针对水下小气泡的水下显微摄影光学系统，确定了其主要技术指标和图像采集系统的重要参数，讨论了水下高速显微摄影的景深、照明方式等几个关键技术问题。

A scheme of microscope polarization interference imaging spectrometer based on a Savart polariscope and its basic principles are introduced,and the relative expression of depth of field of MPIIS is derived with the geometrical-optics method.

提出了一种基于萨伐尔偏光镜双折射晶体进行光谱分光的显微偏振干涉成像光谱仪的创新性原理和方案；从几何光学的角度推导了显微偏振干涉成像光谱仪景深的理论计算公式；给出了景深与光谱分辨力的变化关系，证明了景深的存在使系统光谱分辨力不再唯一确定，而是在一定范围内连续变化；通过计算机模拟分析了景深对系统分辨力的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。