video parts 中文意思是什麼
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However, video communication can tolerate some kind of data error or loss and different parts of video bitstream have unequal error sensitivities. so we need new error control methods designed especially for video communicaton
同時視頻數據能夠容忍一定的誤碼和丟失，並不需要絕對的無差錯傳輸，而且視頻數據流的不同部分對錯誤的敏感度也不同，因此有必要也有可能根據視頻通信的特點研究新的差錯控制方法。 -
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 。 -
The system mainly has three parts of compositions : video frequency gathering board, actuation board, display panel
系統主要有三部分組成:視頻採集板、驅動板、顯示板。 -
The technology of image information includes information encryption and information hiding two parts. the video information encryption is mainly researched in this paper
信息安全主要包括信息加密技術和信息隱藏兩部分，本文主要研究視頻信息加密技術。 -
In this paper, chroma dc coefficients are selected as the carrier data because chroma dc coefficients are robust. also, alterable steps are used to select one part of the coefficients, so the watermark is imperceptible ; before watermark embedding, the watermark is divided into many parts, every part is individually embedded into one gop of the video, even if a gop is destroyed, the watermark can be extracted correctly, this methods promotes the robustness of the watermark ; in addition, in order to promote the security of the watermark, the user ' s id and password are used to generate chaos sequence by the chaos system which is created in this paper, later, watermark is mixed by the chaos sequence. also, the embedding position of the watermark bit is modified by one chaos sequence, so, unauthorized person can not extract or remove the watermark, since the embedding position is unknown
本文認為，色度dc系數是魯棒性非常好的參數，因而選擇色度dc系數作為水印信息載體，同時，採用可變的步長選擇部分系數，保證了水印的隱形性；在嵌入水印時，本文採用水印信息「網格劃分」 、各子塊獨立嵌入視頻的方案，由於水印信息子塊是相對獨立的嵌入視頻中的每一相對獨立的圖組當中，即使某一圖組收到一定破壞，也能夠恢復水印信息，使水印的健壯性得到提高；此外，為了提高水印信息的安全性，在嵌入水印信息時，根據用戶輸入的id號和密碼，利用本文構造的混沌系統產生的混沌序列對水印信息進行變換，同時，對每一水印信息比特的嵌入位置也採用了偽隨機序列進行調整，這樣，未授權用戶不能提取水印信息，也難以擦除其中的水印信息，因為嵌入的位置是未知的。 -
The system consists of four parts, such as sub - system of computer monitoring and controlling, sub - system of toil collection and dispatching, sub - system of video - monitoring and sub - system of broadcasting
該系統由船閘計算機監控子系統、收費調度子系統、視頻監視子系統及廣播指揮子系統等部分組成。 -
However, there still exists correlation between coefficients of sub - matrices after 4d - mdct. this thesis proposes a four dimensional matrix video coding method based on context to get rid of the correlation between coefficient sub - matrices further. it includes three parts as follows : firstly, this thesis presents a four - dimensional matrix video encoder and decoder model, which contains components of prediction, transform and entropy coding
實驗結果表明，該方法與傳統的二維編碼方法相比，具有高壓縮比和高圖象質量的優點;與矢量量化編碼相比，具有碼表體積小，計算復雜度低的特點;與霍夫曼編碼方法相比，在相同信噪比的條件下，對運動相對劇烈的視頻序列壓縮效果要更好。 -
It has application in dvd and htdv and dvb - c and video transmission in network, etc. two parts the principle of video reduced on mpeg - 2 standard and the designing of encoder and debugging on encoder are primarily expatiated on in this dissertation
本文編碼器採用fujitsu公司的mpeg - 2編碼晶元mb86390用硬體來實現視頻信號的壓縮，編成mpeg - 2碼流，可應用於dvd 、數字電視、 dvb - c及視頻的網路傳輸等。 -
It satisfy the consumer ' s mutlimedia application based on web like : video order prog, long - distance education electroncial commence etc. the essay comprises six parts, the first section introduces the utilization and development of the multi - media, regarding the current situatuion of our country ' s on - line education, points out the definite trend of the multi - media data transmission, the second part describes the basic protocol, technology and theory of multi - media data transmission, the third part gives brief introduction to the principles and compression methods of the dealing with multi - media data, the fourth section devises and realizes a complete set of stremline media server, the fifth part discusses qos under the condition of internet, the sixth part looks forward to the development of the streamline media technology
本文介紹了多媒體數據傳輸的基礎知識，結合科通教學平臺的開發，實現了局域網環境下的多媒體課件的傳輸，並對該系統的進一步改進提出架構流媒體服務器的方案，將用於滿足用戶需要更多基於網路的多媒體應用，如視頻點播、遠程教育、電子商務等。本論文分為七個部分。第一部分介紹了多媒體技術的應用與發展，針對我國網路教學的現狀，指出多媒體數據傳輸的必然趨勢。 -
In order to simulate the return, a radar coherent video echo model is used to simulate target echo, clutter and noise separately. then the three parts which are in the same range cell are added together to form a matrix to represent return in one radar coherent processing interval ( cpi ). this matrix is called a frame of range doppler data
為了較為全面地對雷達回波進行模擬，採用相干視頻回波模型分別模擬雷達目標回波、雜波和噪聲，通過在距離單元內疊加的方法，將一個雷達相干處理周期內的回波數據用一幀距離多普勒平面數據表示。 -
This paper research the mpeg - 4 standard first and realize the encoder and decoder of video of mpeg - 4. then the paper emphasize two key techniques in mpeg - 4 encoder : motion estimation and sprite encode. motion estimation takes the largest time in all parts of mpeg - 4 encoder. the paper concluded some typical me techniques, research and realize the mvfast arithmetic whice is recommend by iso, then improved mvfast by considering the temporal candidate motion vector and adjustal thresholds
然後，本論文重點研究了mpeg - 4編碼過程中兩項關鍵技術：運動估計和背景圖像編碼。運動估計是編碼過程中最重要，耗時最長的部分。本論文總結了常見的運動估計演算法，深入研究並實現了iso推薦的運動估計優化演算法mvfast ，在此基礎上，引入了時間參考運動向量和可調的門限參考值，對mvfast演算法進行了改進。 -
Rainfall information in various parts of hong kong is shown on a video terminal and a graphic display unit at the central forecasting office of the observatory
此外，天文臺天氣預測總部內的視頻終端機及圖形顯示器亦可顯示土力工程處遙感雨量器網路所提供的香港各區雨量資料。 -
In addition, the geotechnical engineering office also operates a network of remote rain - gauges. rainfall information in various parts of hong kong is shown on a video terminal and a graphic display unit at the central forecasting office of the observatory
此外，天文臺天氣預測總部內的視頻終端機及圖形顯示器亦可顯示土力工程處遙感雨量器網路所提供的香港各區雨量資料。 -
Secondly, this paper has expounded two key parts through which this system can be implemented ? ? the filter which can separate data signal from video signal and the circuit which can realize data signal which is in the same channel transferred bidirectional through coaxial - cable. the design and the test result of these two key parts are analyzed
其次，論文還對系統得以實現的兩個關鍵部件? ?讓catv信號和以太網信號得以分離的高低通濾波器，讓同軸電纜實現雙向數據通信的混合線圈的設計過程做了詳細闡述，給出了高低通濾波器及混合線圈的設計結果。 -
This research is make up of two parts, whiteboard supported tablet and video & audio modules
該研究項目主要由面向多功能手寫筆的白板系統和視頻音頻系統組成。 -
Its main content can be divided into three parts. the first one is the introduction of the european audio - video industry model and its development, including the explicit explanation of the public funding in europe involving the description of public funding, the public funding support of the film industry, the support to the television industry, the technology departments, multi - media, the video and the support from cnc to the film and television groups, then it introduces the development of the european audio - video industry involving the status of the public broadcasting in europe, the strength of the european audio - video industry in the whole world and the analysis of the advertising industry
大體內容可以分為三部分:第一部分是歐洲視聽產業模式及其發展狀況，首先是對歐洲視聽產業公共資助進行了詳細的介紹，包括對資助基金的描述、對電影產業的公共資助、對電視產業的資助、對技術部門、多媒體和視頻的資助以及cnc對致力於影視業團體的資助;然後介紹了歐洲視聽產業發展情況，包括公營視聽在歐洲的地位，歐洲視聽產業在全世界的實力及其廣告業態分析。 -
With the strict requirement analysis, the inspecting system of atm video frequency machine includes there parts : the flat roof application, database, communication application
系統達到了及時反映各atm視頻監控機的modem 、硬盤、視頻卡、視頻鏡頭的實時狀態。 -
Since 1996, six international global telemedicine conferences have been held by the university, the largest of all being the " moving with the sun 97 " conference which was the first 24 - hour telemedicine conference linking up 19 medical centres across the world. telemedicine links medical experts in different parts of the world together by using high speed multimedia network such as asynchronous transfer mode ( atm ), very small aperture terminal ( vsat ) and virtual private network ( vpn ) as communication media in conjunction with compressed video conference technology
遠程醫療是醫療技術與高科技相結合的典範，以高速多媒體電信網如異步傳輸模式（ atm ） 、高速衛星專線（ vsat ）及組建虛擬專用網（ vpn ）作為通訊渠道，並配合先進視像壓縮技術與世界聯網，使身處不同地方的醫學專家可以面對面進行各種醫療活動，打破時間和空間的限制，為救死扶傷開創了另一新途徑。 -
These resulted in the detection of three smuggling cases last week with the seizure of hk $ 1. 7 million worth of goods including digital cameras, fax machines, audio and video equipment, vehicle parts and dried seafood
執法人員過去一星期的行動已成功偵破三宗走私案，檢獲總值一百七十萬元的貨物，包括有數碼相機、傳真機、影音器材、汽車零件及海味。 -
Image processing circuit made up of several following parts : the pretreatment of the video, a / d change, the frame memory, the track window and the digital signal proc
圖像處理電路由以下幾部分組成:視頻預處理、模數轉換、幀存儲器、跟蹤窗口、數字信號處理器。
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