碼幀 的英文怎麼說
中文拼音 [mǎzhèng]
碼幀
英文
code frame-
This version is applicable to the engine systems for the vehicles with obd2 and eobd protocols, with available functions of read dtc, clear dtc, read dynamic data stream, read freeze frame, readiness test, read version information, read specified data and read oxygen sensor status data
此版本可測試符合obd2 eobd標準的汽車發動機系統,功能有讀故障碼清除故障碼讀動態數據流讀取凍結幀準備測試讀版本信息讀廠家自定義數據氧傳感器測試。Firstly, four alternative mode was introduces for h. 263 data compress arithmetic : the mode of nonrestrictive sportive vector, syntax - based arithmetic coding mode, the mode of supernal forecast, and the mode of pb frame
首先詳細介紹了數據壓縮演算法h . 263以及h . 263演算法的四個可選模式:非限制運動矢量模式;基於語法的算術編碼模式;高級預測模式; pb幀模式。2, under equally see the quantity, compress the calculate way s exportation code plain deal connect the good and bad that decide its function of the good and bad, or say, output the code the term of same alike rate the bottom, and the portrait quantity reflected the function of the compression calculate way. adopt with dv all because of the m - jpeg an inside compress the way, efficiency of their compression certainly want lower than mpeg2. certainly, this is an average circumstance, at the time that low code rate, the mpeg2 can compare the m - jpeg compression the ratio high and a lot of but keep the good diagram to resemble the quantity ; but at request the diagram to resemble the quantity the good time for example the sow the room program edit with empress period creation, their difference to is not very big. too is to say, just at the compression efficiency that not emphasize the portrait quantity that the circumstance, mpeg2 is high
2在同樣的視頻質量下,壓縮演算法的輸出碼率直接決定其性能的優劣,或者說,輸出碼率相同的條件下,圖象質量的優劣反映了壓縮演算法的性能。由於m - jpeg和dv都是採用幀內壓縮方式,它們的壓縮效率當然要比mpeg2低。當然,這是一個平均情況,在低碼率的時候, mpeg2可以比m - jpeg的壓縮比高很多而保持較好的圖像質量而在要求圖像質量很好的時候比如演播室節目編輯和後期製作,它們的差別不是很大。The focus is placed on the investigation of the standard of the encoding algorithm for mpeg audio layer iii, and the analysis of the major four modules in the compression algorithm, including encoding of subband filter bank, psychoacoustics model, quantification and huffman coding, frame packing
重點研究了mpeg音頻第層編碼的演算法標準。詳細分析了壓縮演算法中的四個主要功能模塊:子帶濾波器組編碼,心理聲學模型,比特流量化與霍夫曼編碼,幀數據流格式化。It makes use of resource of the chip, realizes the development of every module, achieves distilling of telegraphese, builds up new frame, calculates the position and provides external interface. in the section of calculating the position, the author combines the two measures of carrier phase position and code position. finally, in the platform of matlab, the author completes the function simulation of main modules
概述了接收機的設計原理;詳細描述了基於ti公司的tms320c6713dsp晶元的系統程序設計中各模塊的實現,利用該晶元的資源,實現各模塊的調度,完成對導航電文的提取,重新組幀,定位解算以及對外介面;在解算部分,把載波相位定位與碼測距定位相結合,利用載波相位對偽距的平滑來提高定位精度;在matlab平臺下進行了各模塊的功能模擬測試,以模擬結果的圖表來分析說明了載波相位平滑偽距的兩種演算法能使定位精度有一定的提高。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。After about two years " insisting and hard working, this goal set at the beginning has become true. the developed c54x general assembly program for g. 729 speech signal compressing algorithm has passed the tracking with more than 3, 000 unitary standard measuring vectors. g. 729 speech signal compressing compiler using c54x general assembly program has been accomplished real - timely, and undistorted rebuilt speech signals have been obtained
因此本課題選用c54x的通用匯編語言編程實現g . 729語音壓縮編碼演算法,調試並通過了統一標準測試矢量三千多幀,最終在5402開發實驗板上實時實現了g . 729語音壓縮編碼器,獲得未失真的重建語音信號。It has also been proved correct in practice by testing with cooperator. the paper analyzed the character of our radio and introduced the procedure of designed base band frame architecture. it showed the application of channel coding in our radio, and encode / decode method implemented in dsp
本文針對本電臺的特點介紹了基帶幀結構的設計,重點介紹了幾種常用通道編碼在本電臺的應用,以及編解碼方法在dsp中的實現,並從理論上分析了通道編碼給本電臺帶來的處理增益。The motion - based layered compression scheme in this dissertation is different from the traditional full picture - process method, using different encoding strategy by classify marcoblock in temporal motion, a high encoding efficiency is achieved in experiment
本文提出的基於運動的分級壓縮演算法,打破了以往時空伸縮全幀處理的概念,實驗中以塊為單位按時間頻率分等級,分別採用不同的編碼策略,達到較好的編碼效率。If this frame field adaptation is extended to macro block level, the coding efficiency will be further increased
在h . 264 avc中,圖像級的幀場自適應paff編碼和宏塊級的幀場自適應mbaff編碼都被采納。Based on the dsp development board, the author finishes the hardware debug about the multi - channel buffered serial port ( mcbsp ) receiving the output signal from the gps if collector and resolves the software program of the receiving buffer of the multi - channel synchronous serial data, data integration, udp datagram encapsulation and network interface driver, etc. the real - time udp datagram receiving, data frame de - encapsulation and high speed data memory are implemented, and a friend application interface with windows message is developed on the pc
基於dsp開發板,作者完成了dsp的多通道緩沖串口( mcbsp )接收gps中頻接收機輸出信號的硬體調試,並解決了多通道同步串口數據的接收緩沖、數據合併、 udp數據報裝幀及網路介面驅動等軟體編程。在pc端,通過mfc的網路應用開發類casyncsocket實現udp報的實時接收、數據解幀譯碼、高速存貯,利用windows消息機制開發了應用程序友好界面。In the beginning, the dissertation gives an overview of digital video system and an introduction of the format of mpeg - 2 transport stream, mpeg - 2 physical interface and frame structure of ds3 stream
文章首先介紹了關于數字電視系統的一些基本概念, mpeg - 2傳送流格式和mpeg - 2的物理介面,以及ds3碼流的幀結構。1, the mjpeg, dv can provide the precision to the compression data code for of with machine visitting, but, mpeg2 the is according to i, p of or i, p, b of, can t attain this point. this at not the line edit can cause the material the dilatoriness that search for the etc.
1 mjpeg dv都能提供精確到幀的隨機訪問,但是, mpeg2的壓縮數據碼流是基於i p幀的或i p b幀的,就不能做到這一點。這在非線性編輯時會引起素材搜索的遲緩等。For video codec, after analyzing and researching the newest standard h. 264, an efficiency algorithm was proposed in this paper using self - feature, spatial correlation and temporal correlation to judge the encoding mode of one macro - block. through this method, the best prediction mode can be obtain before encoding, then, the coding time can be reduced dramatically with a little expense of bit - rate. for video transmission, in this paper, a transmit method was proposed using tcp / ip protocol under the environment of local networks
首先,在分析及研究最新的視頻編碼標準h . 264的基礎上,利用宏塊自身的特點和其時間、空間的相關性來判斷宏塊應該採用的編碼模式,從而提前得到該宏塊的最佳編碼模式,新方法有效地克服了原標準演算法中窮舉式的復雜演算法,在壓縮碼流只有少許增加的情況下,大幅度地提高了幀內及幀間編碼的速度。A new bit rate control strategy with both global pre - allocation and local segmentation ( glas ) for low bit rate application is proposed. first, it allots bit date to every frame in advance according to possessive rate of buffer, and then distribute different quantization parameters according conctete detail. by means of this method, buffer is controlled more particularly. and the quality of decoded image is improved, the traditional video image coding method, that is to say, the intraframe coding based on dct and the interframe prediction coding based on motion compensation, is not suitable for low bit rate compression and aside from this, the encoder is too complicated
它首先在總體上根據緩存器的佔有率給每幀預分配比特數,然後再根據具體細節給予不同的量化參數。使緩存器得到了更細致的控制,解碼圖像的質量有所改善。針對傳統的視頻圖像編碼方法,即幀內基於dct的編碼加幀間基於運動補償的預測編碼存在不適于低比特率壓縮,編碼器復雜等不足,討論了基於3 - ddct的xyz視頻圖像壓縮編碼方法,提出了3 - ddct系數的三維「 z 」形掃描方案,大大提高了編碼效率。2 ) appling the theory of information and code. this paper gives the code rule, detail code methods and decode principle of bit code and frame data code. also this paper researches and designs the lower power consumption and anti - jamming code at the signal source point
2 )將信息論和編碼理論應用於無線家庭安防系統中,給出了位碼編碼、幀數據編碼的編碼準則、具體編碼方法及解碼原理。研究並設計了信源端具有低功耗和抗干擾性能的最佳編碼方法。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。On the shortcut menu. to display non - user code frames in the call stack window
在「調用堆棧」窗口中顯示非用戶代碼幀A fpga is used as the controller, performing the necessary processing such as eliminating the head of the encoded data frame, storing the speech data into fifo and transmitting it
控制晶元採用fpga ,完成復位、分頻及對已編碼幀數據進行去幀頭、在fifo中暫存等處理並以低速率發送。Based on this model, an application level layer - based congestion avoiding mechanism using by multicast is given. it takes advantage of layered video coding, sets down a set of video transfer scheme with different bandwidth
利用視頻編碼的特點,將視頻數據編碼幀按不同的壓縮比劃分為多個層次,並制定出相應的佔用不同帶寬的多層視頻編碼傳輸方案。分享友人