1) standoff imaging
远距离成像
1.
This thesis mainly focuses on the continues wave(CW) THz standoff imaging technology, analyzes a few critical questions from theoretical and experiment aspects, more concerned with the applications of CW THz standoff imaging technology, which are very essential to further research and exploration.
本论文主要是围绕连续THz波远距离成像技术展开,从理论和实验的角度分析此技术的一些关键问题,论证了连续THz波远距离成像技术的可应用性,对今后深入的研究和探索有一定的借鉴意义。
2) the farest imaging range
最远成像距离
1.
According to the formula expressing the relation between the contrast for polarization image and the attenuation of water, the farest imaging range with polarization was calculated as 1.
报道了用圆偏振技术进行水下目标成像结果并分析了用圆偏振技术提高图像清晰度的原因:推导了水下目标最远成像距离的计算公式,在衰减常数α为0。
3) long-distance holographic imgery
远距离全息照相成像
4) range imaging
距离成像
1.
This paper introduces firstly the algorithm for Synthetic Aperture Radar (SAR) range imaging in time-domain compression.
首先介绍了SAR时域压缩距离成像算法,同时研究了匹配滤波成像算法。
5) imaging distance
成像距离
1.
The quantity relationships of imaging distance and quality of the system with the main system parameters such as the scattering angle of light beam, the visual angle and open time of gate of receiver are calculated.
提出了一种新型水下激光成像系统的模型 ,计算了该系统的成像距离和成像质量与光束发散角、接收视场角、快门开启时间等主要参数的关系 ,降低背景光的影响与提高光脉冲质量能有效地提高成像距离和成像质量。
2.
Based on the beam spread and the point spread functions, the quantitative relationships of imaging distance and imaging quality with target distance,receiver field angle, facula size and light power in ordinary sea water medium for synchronous scanning underwater laser imaging system are calculated.
利用光束扩展函数和点扩展函数，计算了在一般海水介质中，同步扫描水下激光成像系统，成像距离和成像质量与目标距离、接收视场角、光斑的大小和光功率等参数之间的数量关系。
3.
This paper calculates the irradiance of signal light reflecting from the object and backscatter light at the place of receiver by two flux irradiant transmiting theory and scattering theory of collimated light beam,and obtains the theoretical value of underwater laser imaging distance.
利用双流辐射传输理论和准直光束的散射理论分别计算出接收端目标反射光信号和背向散射光的辐照度，从而得出水下激光成像距离的理论值。
6) far-distance IR Image
远距离红外图像
补充资料：成像距离
要了解摄像头的成像距离需要引进一个超焦距的概念。超焦距是指对焦点以后的能清晰成像的距离。摄像头一般都是利用了超焦距的原理，即短焦镜头在一定距离之后的景物都能比较清晰成像的特点，省去对焦功能。当然这个“清晰”不是一个绝对的概念，超焦距范围内的景物并非真正的清晰成像。由于景物不在对焦点上，因此模糊是肯定的，只是模糊的程度一般人能够接受而已。
摄像头成像距离就是指摄像头可以相对清晰成像的最近距离到无限远这一范围。例如有的摄像头其成像距离是5cm到无限远，即表示5cm是最近的成像距离，此距离以后的景物都会是相对清晰的。对于一般用户来说，如果只是安装在电脑上进行视频聊天的话，那么一般5cm到无限远的“超焦距”模式对焦已经可以满足要求了。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条