video stream 中文意思是什麼

video stream 解釋
視頻信息流
  • video : n. 電視；視頻；影像。adj. 電視（用）的，視頻的，錄像的。
  • stream : n 1 河流，小河；川，溪。2 流出，流注；一連串，（人物等的）輩出。3 （事件等的）連續；（財富等的）...
  1. This method is often used to change the aspect ratio of a video stream

    此方法通常用於更改視頻流的高寬比。
  2. 3. based on analyzing the affection on coding performance of two operating modes in h. 264 nal layer, such as data partition mode ( dpm ) and signal slice mode ( ssm ), an adaptive channel uep scheme ( acuep ) for h. 264 video stream was proposed

    在研究了h . 264編碼視頻流在nal層下的兩種工作模式對編碼性能影響的基礎上，提出了一種h . 264編碼視頻流通道自適應非平等誤碼保護方案（ acuep ） 。
  3. This scheme firstly determined the operating mode of coded video stream in nal layer according to the current channel state before they were packed. the coded video stream operated under ssm in error - free channel so as to reduce the packing tradeoff and increase the coding efficiency. while in error - prone channel, they operated under dpm combined with improved unequal error protection ( uep ) scheme based on human eyes characteristic in order to elevate their robustness to channel error

    該方案中編碼視頻信息在進行打包封裝前，首先根據當前通道狀態信息自適應地確定其在nal層中的工作模式，在無丟包通道中採用單數據片模式以降低編碼視頻流的打包開銷，提高編碼效率；而在丟包通道中採用數據分區模式以提高編碼視頻流對通道誤碼的魯棒性能，同時基於人眼視覺特性，提出了一種改進的uep策略。
  4. Users could incept real time video stream with pda through gprs anytime and anywhere, which validate the possibility of video transmission under the third mobile communication systems

    用戶可以利用手持式設備- - - pda在任何時間，任何地點通過無線gprs網路實時接收視頻流；從而驗證了第三代移動通信系統中進行視頻通信的可行性。
  5. The scheme adjusts the audio frame length without impairing audio quality according to the occupied level of audio playout buffer and changes the playout frame rate of video according to the occupied level of video playout buffer to achieve intra - media synchronization of audio stream and video stream

    演算法分別根據音頻和視頻播放緩沖區的佔用水平，在不影響音頻播放質量的情況下調整音頻幀的長度，實現音頻流媒體內同步；通過改變視頻流的播放幀率達到視頻流媒體內同步。
  6. A file format is proposed based on the generic model and iso base media file format. we first create a directed acyclic graph model to describe the substreams and relationships among those substreams in a scalable video stream

    本文首先建立了一個有向無環圖模型，該模型能夠描述可擴展視頻編碼碼流中各子碼流和子碼流間復雜的依賴關系。
  7. In improved uep scheme, the syntax elements belonged to luminance parts and chrominance parts was reassigned to different data partitions. those packets containing syntax elements belonged to luminance parts were got error protection at high level so as to guarantee their correctness during transmitting in error - prone network. simulation has shown that using proposed scheme, the packing tradeoff is decreased 8240 bytes in error - free channel and also the output bits and bit rate of coded video stream are decreased 2. 70kbits and 0. 33 kbps respectively

    模擬實驗表明，本方案能在無噪通道中有效降低編碼器端8240位元組的打包開銷和2 . 70kbit的輸出比特數以及0 . 33kbps的比特率，而在有噪通道中可使解碼輸出重構視頻圖像的視覺質量得到一定程度的提高，亮度分量峰值信噪比可增加近1db 。
  8. Have accepted our invitation as the head judge for photographic and short video stream respectively

    ，分別擔任圖像創作組和短片創作組的主席評判
  9. At the same time, the paper use java media framework and rtp technology to solve the problem of transmission and playback of the audio / video stream

    同時，採用jmf （ javamediaframework ）和rtp流技術，解決通過網路傳輸回放音頻視頻流這個首要問題。
  10. A real - time video stream transmission system based on tcp

    協議控制的實時視頻流傳輸系統
  11. These errors severely degrade the service quality of video communication due to the propagation and accumulation of errors throughout the transmitted video stream

    前向糾錯的方法可以提高壓縮后的視頻碼流在傳輸中抵抗誤碼的能力，但要以降低壓縮效率為代價。
  12. This paper focuses on the research and implementation of these six key techniques. firstly, this paper researches the international standards for compression of digital video data, analyses how to compress analog video stream to mpeg - 4 with hardware. it is also involved in the techniques of net transmit of digital video data, such as net protocol, ip multicast, rtp / rtcp and so on

    本文主要是對智能視頻監控系統關鍵技術的研究與實現，主要體現在以下幾個方面: 1 、在視頻數據的壓縮方面，研究與分析了視頻壓縮的標準以及對mpeg - 4壓縮標準做了簡單的介紹，並分析了mpeg - 4的硬體實現方式，即使用硬體編碼晶元vw2010將視頻信號轉換為mpeg - 4格式的視頻流。
  13. During the practice of gradutate student, i participated in the development of witnet - video ? in the jiaoda withub information co., ltd. i am responsible for secure transmission of mpeg - ii video stream in the network

    在研究生實習期間，本人參與了上海交大慧谷信息股份有限公司的witnet - video ~ （ tm ）網智通視產品的研發，負責mpeg -視頻流在網上的安全傳輸。
  14. With the rapid development of video stream processing technologies, our life has been much improved

    視頻流處理技術的迅猛發展，改善了人們的生活。
  15. Simulation has shown that the proposed scheme can achieve more accurately in similarity examination than scheme which proposed by [ 102 ]. so the bit number of coded video stream was decreased about 22. 95 percent and thus the compression ratio was improved. although the coding cost was increased about 8. 25 percent by using proposed scheme

    模擬實驗表明，與文獻[ 102 ]方案相比，提出的方案雖然增加了約8 . 25的編碼器編碼耗時，卻有效提高了對視頻序列突變幀的檢測精度，從而進一步降低編碼器端輸出編碼視頻流的比特數達22 . 95左右，在基本不影響重構視頻信息視覺質量的同時提高了編碼器的壓縮效率。
  16. Pickup cameras take in the video and get the data and translate to the computer. computer operates the avi video stream manipulation and the image processing

    攝像頭拍攝被檢驗的儀表獲得視頻數據，計算機通過對avi文件視頻流的實時操作，對儀表進行實時的自動監控，實現監測儀表指針運動異常的功能。
  17. This paper demonstrate a media - player based on the mpeg - 1, it can receive and playback the mpeg - 1 video stream encapsulated by rtp / rtcp protocol

    本文論述了一種基於mpfg - 1格式的流媒體播放器，它能夠接收和回放以標準rtp rtcp協議封裝的mpeg - 1的視頻流。
  18. After the comprehensive consideration of different architecture, the dct domain partial encoder transcoding scheme, which eliminated the drift error by motion compensation, was chosen as the system architecture. this architecture not only kept the video quality well, but also intelligently utilized the coding information of the input compressed video stream

    在綜合考慮各種結構性能的基礎上，確定了基於dct域的部分編碼轉碼架構為轉碼器結構，從而在保證視頻質量的同時最大限度地利用壓縮碼流中的信息，提高轉碼效率。
  19. A fast non - iterative global motion estimation ( gme ) algorithm is disclosed for estimating the perspective transform global motion parameters from the motion vectors ( mv ) obtained from the block matching process that includes grouping a plurality of motion vectors in the input video stream into a predetermined number of groups of motion vectors, calculating a set of global motion parameters from each of the predetermined groups of the motion vector, and processing the set of global motion parameters generated from the calculation to obtain a final estimation

    本發明系關於一種快速非反覆式全域移動估測方法，以由區塊匹配程序中所獲得的移動向量去估測一透視轉換全域移動參數，其包含一分組步驟，將該輸入影像資料流中的多個移動向量區分成具有預定數目的移動向量之群組?一計算步驟，系依據每一群組中之移動向量，求取該等群組之全域移動向量參數值?一處理步驟，系處理計算步驟中所計算出的每一群組之群組全域移動向量參數值，以獲得一最後之全域移動向量。
  20. Based upon the conditions described above, we have designed a video codec system using dsp which can encode and decode h. 263 or mpeg - 2 video stream

    基於以上情況，我們開發了一套基於dsp實現的視頻編解碼器，它能按照h 263協議或mpeg - 2協議進行編解碼。
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