What's the difference between optical and digital zoom?
有什么区别光学和数码变焦？
Pixels, memory, optical and digital zoom, camera size and cost are all factors to compare.
像素、存储、光学及数码变焦相机体积和成本等因素比较。
Its optical and digital zoom works together to give you 42x extended zoom to get you closer to your focal point.
其光学和数码变焦一起工作，让您42x扩展变焦，你更接近你的焦点。
The purple emission is multi-million degree gas detected in X-rays by NASA's Chandra X-ray Observatory and the other colors show galaxies in an optical image from the Sloan Digital Sky Survey.
其中紫色喷发状物质是几百万度高温的气体，由ChandraX射线天文中心探测；其他颜色展示了斯隆数字星空调查的光学图片中的一些星系。
All of the children's footprints, along with scores more human tracks in the Khuiseb Delta, are being recorded in detail with an optical laser scanner and are to be placed in a digital archive.
所有这些儿童足迹以及在奎塞三角洲(khuiseb delta)发现的好几十个人类足迹都使用光学激光扫描仪详细记录下来存放在数字档案中。
This paper takes modulation technique as main hint, summarizes the essential principle of analogue modulation technology, optical modulation and digital modulation technology.
以调制技术为主线，介绍有线电视系统中模拟调制技术、光调制技术和数字调制技术的基本原理。
The camera still shoots at 720p with a fixed optical zoom (but 2X digital) lens and attaches directly through its own USB connector.
VadoHD的视频规格依然只有720p，并且没有光学变焦功能，只支持两倍数字变焦，设备通过USB接口与外界连接。
Digital (and optical) engineers must be aware of RF parameters in product development and production testing.
数字(或光)工程师必须清楚开发和制造测试时的RF参数。
The total lance of long distance optical cable increases by 27000 sheet km, that of digital microwave links by 14,400 km and the number of telephone lines by 19.61 million.
新增长途光缆27000皮长/公里，数字微波干线14400公里，电话交换机容量1961万门。
The total lance of long distance optical cable increases by 27000 sheet km, that of digital microwave links by 14, 400 km and the number of telephone lines by 19.61 million.
新增长途光缆27000皮长/公里，数字微波干线14400公里，电话交换机容量1961万门。
Optical glass with high refractive index and high dispersion are used more and more as optical design trend to miniaturization and digital.
高折射率高色散光学玻璃在目前小型化和数字化的光学设计中的用途越来越广。
According to the current situation and prospect of applying OET in substation automation, the opinion of digital electro-optical secondary circuit is given out.
结合光电传感器在变电站自动化系统中的应用现状和前景，提出了二次回路光电数字化的设想。
The technology of digital shearing wavefront interference is widely used in measurements for wavefront and parameters of optical components.
数字剪切波面干涉技术广泛用于波面测量和光学零件参数的检测中。
This measuring system is composed of worktable, clamping and adjusting structure, optical system, digital camera, image card and computer. Picture 1 is system structure diagram.
本测量系统硬件主要由工作台、数码像机夹持及调整机构、光学系统、数码像机、图像采集卡和计算机组成，系统结构简图如图1所示。
Products have been developed: a digital camera, cell phone camera lens and optical components.
现已开发产品有：数位相机镜头，手机相机镜头及光学元件。
The characteristics and the R&D trend of a optical partial response digital transmission technology, namely optical duobinary transmission, are thoroughly introduced and discussed.
对一种新型光部分响应数字传输技术即光双二进制技术的特点与发展趋势进行了深入研究和介绍。
Digital speckle measurement is a kind of non-contact and full-field optical measurement method.
数字散斑测量是一种非接触、全场测量的高精度光测方法。
As a highlight in the optical research today, digital holography is a mix of optical holography, computer technology and electronic imaging technology.
作为当今信息光学研究领域中的一个热点，数字全息技术是光学全息术、计算机技术及电子成像技术相结合的产物。
A programmable real-time optoelectronic hybrid threshold logic processor is presented and the applications to digital optical computing and optical signal processing are discussed.
提出一种可编程实时光电混合阈值逻辑处理器，讨论了该处理器在数字光计算及光信息处理中的应用。
In this article, we review the novel technologies in ultra-high density digital optical storage and introduce the recent development in this field.
简要综述了超高密度数字光存储新技术，介绍了近年来该领域研究的新进展。
The common correction methods are optical correction and digital correction.
常用的校正方法为光学校正和数字校正两种方法。
The macrostructure and microstructure of the solidified samples was observed by digital camera and optical microscopy, respectively.
利用光学显微镜和数码相机对凝固试样的宏观及微观组织进行观察。
Otherwise, the intracavity modulating laser with feedback device can be used in digital optical communication because of its bistable and multistable out-put.
带有反馈的腔内调制激光器，其输出将出现双稳、多稳特性，因而可用作数字光通信的调制源。
Compared with half peak voltage level trigger manner, the measurement accuracy is improved significantly and the application field of digital optical screen is expanded.
与传统的峰值一半电平触发方式相比，能够显著提高测试精度，从而扩大了光幕靶的使用范围。
Discussed the optical imaging principle of the digital microscope system and the laser scanning confocal microscope system.
讨论了数码显微镜系统及激光扫描共聚焦显微镜系统的光学原理。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
应用推荐