video processing 中文意思是什麼
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The dptv video processing subsystem hardware design based on ctv
視頻處理子系統硬體設計 -
The subject has mainly finished designing and debugging software and hardware of a / d decode module, fpga video processing module, video data frame deposit module, base clock produce module, d / a encode module, i2c bus control module, etc. a / d decode module gathers analog tv signals and realize video decode ; fpga video processing module deals with the data after decoding and produces systematic logic control signal ; video data frame deposit module offers the buffering area to a large n umber of high - speed video data ; base clock produce module through input basic video signal offers system accurate relevant synchronous signal ; under control of video processing module d / a decode module convert digital video data into compound tv signal which can be shown in tv directly ; i2c bus control module is used to initialize the chip of system by simulating i * c bus timing
本課題主要完成了a d解碼模塊、 fpga視頻處理模塊、視頻數據幀存模塊、基準時鐘產生模塊、 d a編碼模塊、 i ~ 2c總線控制模塊等部分軟、硬體設計及調試。其中a d解碼模塊採集模擬電視信號實現視頻解碼； fpga視頻處理模塊對解碼后的數據進行去噪處理的同時還負責系統的邏輯控制；視頻數據幀存模塊為大量高速的視頻數據提供緩沖區；基準時鐘產生模塊通過輸入基準視頻信號為系統提供精確的相關同步信號； d a編碼模塊在視頻處理模塊的控制下把數字視頻數據轉換成復合電視信號供顯示用： i ~ 2c總線控制模塊模擬i ~ 2c總線時序實現對系統中編、解碼晶元的初始化。 -
This shockwave flash real - time video processing
這個shockwave flash實時視頻處理 -
Intelligent - vehicle ( iv ) technology plays an crucial role in guaranteeing safely driving. intelligent - vehicle video processing technology is one of the most important technology, and this result in research of intelligent - vehicle video processing system
智能車載技術對于保證車輛安全駕駛起著關鍵作用，車載視頻技術是智能車關鍵技術之一，由此引發了對車載視頻系統的研究。 -
Video coding realization in narrow band channel is a hotspot in video processing field
甚低碼率視頻圖像編解碼技術是近年來視頻處理領域的一個研究熱點。 -
Very low bit rate video coding is a hotspot in video processing field in these years. it supplies a gap of application in narrowband channel
甚低碼率視頻圖像編碼技術是近年來視頻處理領域的一個研究熱點，它的出現填補了視頻通信在窄帶通道上應用的空白。 -
( design and realization of video processing system including noise reduction and time based corrector } is a project which is consigned to develop by the yincheng electronics co. ltd in changzhou
《時基校正與降噪一體化視頻處理系統的設計與實現》課題是受常州音成電子有限公司委託開發的在研項目。 -
Video coding realization in narrowband channel is a hotspot in video processing field
在低速通道上實現動態視頻編碼技術是目前視頻處理領域的一個研究熱點。 -
The fifth chapter expatiate the resolve method of false code during the video processing. the emphasis is put on the false code resolve method in video post - processing. these methods are adopted in many video processing chips include sti5518
闡述了對于視頻處理過程中誤碼的解決方法，著重對于視頻后處理過程的誤碼檢測和掩蓋方法進行了說明，這些方法也是現行解碼晶元普遍使用的誤碼解決方案。 -
Fast image scaling with high fidelity plays a key role in video processing and codec by providing various resolution, reducing bitrates to facilitate video transmission and achieving the best visual quality at the receiver
在視頻編碼轉化中，必須確保幀內編碼幀（幀）經過縮放后仍然具有很高的質量，才能使后繼運動預測幀的運動補償誤差達到最小化，從而到達較好的視頻編碼轉換效果。 -
Through using for reference and demonstrating the technology of video processing system of domestic and foreign, author has put forward a set of video processing system schemes suitable for the china " s actual conditions. by using the digital technology, such as digital encode - decode, digital phase - locked, digital filter, digital image storing, the system schemes realizes tv signal noise reduction and time error elimination in real time, and makes the system be a integrated noise reduction and time based corrector really
通過借鑒和論證國內外時基校正和視頻降噪的相關技術，作者提出了一套適合於中國國情的視頻處理系統軟、硬體方案實現模擬電視的信號數字轉換以及利用數字編解碼、數字鎖相、數字濾波、數字圖像存儲等數字技術來實現電視信號實時去噪和消除時基誤差，使系統真正做到集時基校正與降噪一體化。 -
In fact, scaling technology is an essential component in many image / video processing such as to magnify / minify still image, to achieve special effect like picture - in - picture, to compress or transform digital video with spatial scalability etc. in this thesis we mainly employ this technology in video transcoding, which is a powerful but computationally intensive tools to convert one kind of video format into another, meeting different demand such as lower bitrates or various display terminals. in sum, there are two kinds of scaling schemes : one is in spatial domain and the other in transform domain. the scheme in transform domain can provide very good performance, that is, efficient computation and desirable image quality, whereas it has some disadvantage which is impossible or hardly to o vercome, especially some scenarios require arbitrary ratio zoom in horizontal and vertical, and excellent visual effect
兩種方法都各有其利弊：變換域的方法是利用現有常用的視頻壓縮方案都是基於dct這個特點，所以可以直接在變換域做處理，這樣可以節省大量的計算，但其缺點是由於dct是基於塊的變換，如8 8 ，所以很難找到一種方案可以進行任意比例的縮放，尤其是在縱橫縮放比例不一致的情形，但這對諸如hd縮放到sd和空域分級的壓縮方案來說尤為重要，基於空域濾波的方法卻沒有這樣的限制，同時可以保證縮放后的圖像的質量遠高於基於變換域的方法，為了達到高的縮放質量，就不可避免導致計算量過大。 -
Computer architecture, video processing, image compression
視訊處理，影像壓縮 -
It is well known that video processing is the most computationally intensive part in multimedia computation. real - time video coding previously resorted to dedicated hardware or professional equipments
眾所周知，視頻處理是多媒體計算中運算開銷最大的部分，它的計算復雜度遠大於其它媒體（文本、語音、音頻、圖形和靜態圖象） 。 -
Depending on the performance characteristics of the dc restoration circuitry within the video processing channel, some or all of the sync pulse may not be removed from the green channel
根據視頻處理通道中的直流電平恢復電路的性能，部分或全部的同步脈沖不會從綠色通道中移除。 -
The video capture card is the second vital piece needed for real - time video processing
對于實時視頻處理來說，另一個重要的硬體是視頻捕捉卡。 -
Subsequently, the development of video capture, video compression, video transmission network, video storage and video processing technology are introduced in chapter two. video compression especially wavelet compression technology, the core technology in the later design is discussed in details
第二章主要介紹了在視頻監控系統設計中涉及的視頻採集技術，視頻壓縮編碼技術，視頻傳輸網路技術，視頻存儲技術和視頻處理技術的現狀和發展方向。 -
Moreover, video control program to implement internal function of fpga is designed including video capture time sequence control, ping - pang frame buffer read and write time sequence control and lcd display time sequence control, and program ' s simulation and analysis is also provided. at last, this paper presents a portable iv ' s video processing system, and proposes three buffer strategy to control capture buffer. and a moving object detection algorithm of combing an adaptive background subtraction technique with a three - frame differencing is adopted
設計了基於fpga系統結構的車載視頻顯示電路板；利用單片機io口模擬i2c時序，實現了視頻解碼晶元控制；利用fpga實現視頻控制，研究了採集通道時序控制、雙幀存ram讀寫時序控制及lcd顯示時序控制的方法，並進行了軟體模擬和分析；設計了車載視頻檢測系統方案，給出了管理採集緩沖區的三幀緩沖策略，採用綜合三幀差分和自適應背景相減的演算法實現運動檢測，連通體檢測去除虛目標，模擬實驗證明其有效性，同時分析了該演算法在dsp視頻檢測系統中的簡單實現方法。 -
Since the mpeg - 2 decoding chip is a soc, 32 - bits embedded risc cpu core is used to decode the ac3 and ts bit stream. the risc core is also used to manage the different task in the chip and the video processing unit is realized in asic modules
論文設計的mpeg - 2系統集成解碼晶元是一個soc ，該soc採用32位嵌入式risccpu核virgo進行音頻ac3和ts流解碼的計算任務，並承擔soc的管理；視頻解碼採用asic實現。 -
This process, including analogue video conversion from difference signal to single signal and digital video processing which is the real time transformation of electronic canceling image - rotation is realized by designing a video - signal - board
設計電路板video - signal - board （ vsb ）完成預處理包括:模擬視頻信號的差分轉單端和放大;數字視頻濾波以及實時電子消像旋、圖像疊加、實時放大等操作。
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