数字视频

This text for the test of the numerical video frequency system, the diagraph principle and method of the logarithms word video frequency signal carry on a study.

本文就数字视频系统的测试，对数字视频信号的测量原理和方法进行探讨。

ABSTRACT With the development of digital video compressing technology, digital video has been widely used in several areas.

随着数字视频压缩技术的发展，数字视频在各种场合得到了广泛的应用。

ABSTRACT It is the development of the digital video and all digital high definition television technology gives new energy and activity.

数字视频及全数字高清晰度电视技术的发展，给视频广播业带来新的活力和勃勃生机，加之计算机通信网络的普及，使得数字视频通信不仅在视频广播领域，同时，也在计算机互联网通信，包括在全球互联网Internet上也具有广泛的用途。

With rapid advancements of digital video, however, there is lots of digital video systems having different spatio-temporal sampling ratio, having different standards and different formats, having different display equipment, in order to carry out different formats conversion.

随着数字视频技术迅速发展，产生了各种数字视频系统，具有不同的时空分辨率要求，导致了不同的格式的存贮，传输和显示数字视频的标准出现。

With the development of digital technique and network, the new digital video surveillant system shows its special advantage.

随着数字技术的迅猛发展，网络技术的不断发展和进步，图象信息的数字编码处理模式的不断增加，使新一代数字视频监控系统日益显示出其独特的魅力。H.264是ITU-T VCEG和ISO/IEC MPEG最新的视频标准。

Companies specializing in digital network monitoring, digital video and data communications product research and development and production, successful research and development Tigereye series, Cerberus series of MPEG-1, MPEG-4, H.264 network monitoring systems and digital audio and video acquisition card, SupeScan power, the environment and image monitoring system, JS series Guangduan Ji, data multiplexer, data-machine, E1/10Base-T/V3.5 converters, optical transceiver, communications transmission Access and interface protocol converter products.

公司专业从事数字网络监控、数字视频和通信数据产品的研发与生产，成功地研发Tigereye系列、Cerberus系列MPEG-1、MPEG-4，H.264数字网络监控系统及音视频采集卡，SupeScan动力、环境及图像监控系统，JS系列光端机、数据复用器、数据交叉机、E1/10Base-T/V3.5转换器、光纤收发器等，通信传输接入、接口协议转换器产品。

This article introduces the hardware structure and the software design of a digital video mixer ,which controls the digital video mix processing chip by the PIC single chip microcomputer intermitting technique.

介绍了一种利用P IC单片机中断技术来控制数字视频混合处理芯片，实现将2路或多路数字视频信号混合成1路或多路输出的数字视频混合器的硬件构成和软件设计。

And we also succeed in inosculating the technic of multithreading、 multiple buffers、 windows socket、 IP multicast and RTP real time transmission by using Visual C++6.0 and MS Directshow SDK, and obtained a good result. At the same time, we carried on researching the robustness of this software. We made the research findings of digital video transmission based on network used in applications of banks, and got very good social effects and economic benefit.

本文主要在以下方面做了深入的工作： 1、结合数字视频监控应用的需求分析，对研究网络视频传输技术的意义做了阐述和分析，并就如何充分利用现有网络资源和成熟的多媒体计算机技术进行视频监控等领域的具体应用做了有益的探索； 2、对&数字视频的网络传输&应用中所涉及到的关键技术进行了深入的分析、比较，并进行了有机的融合。

This thesis presents the design and implementation of a web digital vidicon. The web digital vidicon is an important part of the digital video surveillance system, which is based on the technology of embedded system, and it implements video capture, compression and network transmission.

本论文设计并实现了一种网络数字摄像机方案，网络数字摄像机是数字视频监控系统的主要部分，它结合了嵌入式系统技术，完成前端的视频采集和压缩功能，并能利用网络的优势进行视频网络传输。

Firstly, the characteristics of the digital monitoring system and the application in the security monitoring system of ROCKWELL laboratory are narrated.

本文首先介绍了楼宇安保系统中的视频监控系统的特点及其在ROCKWELL实验室安全监控系统中的应用，然后介绍了数字视频监控系统的硬件构成，最后介绍了数字视频监控系统中监控软件的设计过程。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。