Video Technology in Radio and TV-essay代写

留学生essay代写精选范文：“Video Technology in Radio and TV”，这篇论文讨论了广播电视中的视频技术。在广播电视节目中，视频技术往往决定着该节目的制造水平。所以要想让广播电视行业得到发展，就必须得提高如今的视频技术，根据不同的需求，选择不同的视频技术，确保广播电视播出的质量。

The development of TV broadcasting technologies is very fast, and gradually improve the quality of television programs. With the development of television technology, video technology has been greatly improved, regardless of the video format or interfaces, can meet the needs of radio and television, reach normative standard. According to the development of radio and television background, analysis commonly used in video technology.

Broadcast television video technology, will determine the level of manufacturing radio and television programs, the planned common video technology, in order to improve the development of radio and television industry, reflecting the role of video technology. Application of video technology in the manufacture of radio and television, play a fundamental role, must be based on the needs of radio and television, select the available video technology to ensure the quality of radio and television broadcast.

Classification common video art broadcast television analysis, such as: 1. Analog video using analog wave means to the video signal stored to the hard disk, the analog signal is converted into a digital signal, this class methods are deeply flawed, and gradually withdraw from radio and television industry; 2 digital video, video on the web, are a class performance digital video, which can be divided into a compressed format, uncompressed format, in order to increase the numbers video quality, guarantee the effectiveness of digital video in broadcast television, and actively develop digital video mode, to ensure the reliability of digital video, promote the development of radio and television.

Of digital video technology in the television broadcast, the core is a non-compressed format, technology is applied in the source code of a class, a data base, recording output lossless information signal can effectively retain the original digital video data. Uncompressed format of digital video technology, which can be divided into different types of digital components while composite digital video resources. Digital Video Broadcasting technology is the most basic part, retains the most essential data, no data errors during operation, unstable phenomena, which can be a digital video data, and provide reliable parameters of the standard, digital video technology during signal transmission, because the conversion rate is relatively high, the output of video, audio effects are better, to improve the effect of the video shooting. The amount of information in a relatively large radio and television, in which the hard drive designed to meet the needs of users, taking into account the higher cost price, so broadcasters to modest selection of digital video technology to reduce the amount of participation in radio and television companies.

Compression format technology in radio and television, and its second performance method of data transmission, as well as broadcasters method most commonly used technique. The core technology of compression format video data is processed in accordance with the program, local video data compression, pay attention to clean up the garbage and optimize video for original useful data parameters. Many aspects of large-scale broadcasters, technology uses compression format DV, M-JPEG, MPEG and other methods, the use of hard disk storage as digital security, digital video recorder capable of separating the broadcast television signal is recorded to the hard disk, ensure data accuracy and integrity, to a large extent reduce the image signal, audio data space occupancy, freeing more storage space and improve the efficiency of application of video equipment. In broadcast television, the video file is compressed essentially complete, either in theory or in practice, we are able to reduce the cost of loss of signal, to achieve the effect of non-compressed format, in order to improve the video effect, and improve radio and television video efficiency technology.

JPEG compression method Static FIG specifically for processing still image, cause the image to achieve the best results. Broadcasting video technology, the need to implement JPEG images in color, gray scale handling, compression field is the use of DCT, predictive compression, DV compression method is completed. DCT compression method is simple, convenient, to control the nuclear XI is the phenomenon of Minamata caries avoid compression of instability, to prevent invalid in part player in memory, while the prevention of data damaged during. Prediction compression method, which broadcast television video art, showed rapid compression method, by measuring professionals, by intra-frame compression method, compression to complete the full range of frame images, the frame is separated with FIG signal, the TV editor when the video, we can show the characteristics of flexibility, it will not mistake the intervention of local compression effect, prompting independent compressed video resources, compatible hardware and software at the same time compression feature. DV compression method, commonly used in home television aspect, especially SD, HD signal, the code number is 4: 1: 1, the frequency is 13.5MHz, the spatial compression ratio 5: 1, to facilitate the completion of the scene change.

Compound used belongs to a class of video signals, because the use of the color of a cable transmission signal, luminance information, so reducing the quality of the video signal. Wherein a composite video output apparatus using BNC, RCA connector, a composite video signal in the video monitor, is prone to cross-talk problems, field sequence, reducing the frequency of the composite signal.

S-Connections Video broadcast television video input and output, the use of two video transmission cable, improved video chroma, brightness quality, four-pin DIN connector, a socket connector video, such methods the image in the video signal, it is possible to improve the quality of the composite color video ensure clarity of the video image.

IEEE1394 conventional television broadcast video technology, a professional standard for digital video, may be expressed as iLINK, through the interface of IEEE1394, the television broadcasting type, the acquisition of high-quality digital video and outputs information.

The SDI in the video serial digital interface, without the use of a video transmission component digital video signal processing and compression, to maintain the quality of digital video, but also provides multi-generation copy route while transmitting the video information.

SDTL using a video cable, as the compressed video data transmission interface, data after the compression, the transmission efficiency of real-time standard, an interface card model, improve the transmission efficiency of video doubled.

Component YUV is a professional video input and output interfaces, analog video device configuration, providing three different colors of interfaces, the difference between the input and output, radio and television, a home television, will use the YUV Interface component.

Radio and television commonly used video technology to improve the quality of broadcast television programs in order to improve the level of development of radio and television industry. In the development of radio and television, and gradually optimize the video structure, deepen the application of video technology, video technology show in broadcast television role, reflecting the effect of commonly used video technology, to avoid affecting the quality and performance of radio and television programs.

51due留学教育原创版权郑重声明：原创留学生作业代写范文源自编辑创作，未经官方许可，网站谢绝转载。对于侵权行为，未经同意的情况下，51Due有权追究法律责任。主要业务assignment代写、essay代写、paper代写服务。

51due为留学生提供最好的论文代写服务，亲们可以进入主页了解和获取更多essay代写范文 提供美国作业代写服务，详情可以咨询我们的客服QQ:800020041。-ZR