視頻噪聲 的英文怎麼說

中文拼音 [shìbīnzàoshēng]
視頻噪聲 英文
video noise
  • 視 : Ⅰ動詞1. （看） look at 2. （看待） regard; look upon 3. （考察） inspect; watch Ⅱ名詞（姓氏） a surname
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 噪 : 動詞1. （蟲或鳥叫） chirp 2. （大聲叫嚷） make noise; make an uproar; clamour
  • 視頻 : [物理學] video frequency （v f ）; vision frequency; visual frequency; video視頻變頻器[變換器] vi...
  1. The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble

    系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。
  2. That noise fm signal emalates tv sound fm signal researchs above two question about correlative detection and restrainning sidelobe. the research ' s result is compared with linear fm emulational research ' s

    用噪聲調頻信號對電視伴音調頻信號進行模擬研究上述提到的相關檢測和旁瓣抑制問題，並與線性調頻信號模擬研究相比較。
  3. The research results are controlled source which has linear or nonlinear variabe frequency scan function and the seismic instruments which match with it, and the method of small group intervals, small offset, much more channels, short array length, high - frequency receivers are applied during the link of data acquisition, and that the techniques of the refraction static correction, the noise suppressing, the high - resolution velocity analysis, the wavelet length compression, the wavelet zero - phase, and the prestack migration should be applied emphasizedly during the link of data processing and interpretation

    研究表明，對于城市活斷層的抗干擾高解析度淺層地震勘探，在數據採集環節應採用具有線性或非線性變頻掃描功能的可控震源和與其相匹配的地震儀器，以及小道間距、小偏移距、多接收道、短排列和高頻檢波器接收的工作方法；在數據處理與解釋環節，要重視折射靜校正技術、噪聲壓制技術、高精度速度分析技術、子波壓縮技術、子波零相位化技術和疊前偏移技術等的應用。
  4. Research of error resilience technology for video communication based on h. 263 codec major : signal and information processing data : author : meng yan signature : tutor : zhang erhu liu shichang signature : abstract the reconstructed image quality can be degraded substantially by errors during the transmitting over the communication channel, especially when the video is compressed by temporal and spatial coding ways, which leads to error propagation in frame sequence, so the error resilience procedure should be performed to improve the reconstruction quality

    由於通信系統的通道不可避免的存在噪聲，傳輸數據流必然存在誤碼。對于h . 26x的視頻編碼流，由於空域和時域的壓縮方法以及熵編碼方法的應用，即使是一個比特的錯誤，常會影響一個區域的圖像不能正確解碼，同時錯誤的圖像還會擴散影響后續數幀圖像。因此有必要在標準解碼程序的基礎上，添加容錯功能。
  5. Implementations of video integrators, which are based on two - pole filter, are discussed in the last. the initialization, tail and noise integrating problems are analyzed and improvements are given

    最後，本文對非相參視頻積累器的實現進行了討論，分析了雙極點濾波器存在的初始化、拖尾和噪聲電平問題，並提出了改進的方法。
  6. 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。
  7. For recent years, adsl has world widely employed and widely used in many aspects such as vod, remote medical treatment and e - shopping etc. but we noticed that the traditional telephone networks are designed for the transmission of low frequency signals, and the adsl ' s frequency rang is from 0 to 1. 104mhz, so we must confront the signal attenuation, the loop line noise impairments, the crosstalk interferences, the bridge tap reflections and the rf disturbances problems and many other problems when transmitting the adsl signals one the telephone networks

    近幾年來， adsl在世界范圍內得到充分的使用，廣泛應用於視頻點播、遠程醫療、網上購物等各個方面。但是由於電話線網路是專門為傳輸低頻信號而設計，而adsl的頻譜范圍在0 1 . 104mhz內，因此在傳輸adsl信號時，面臨著信號衰減、線路噪聲、串音干擾、橋接抽頭反射和射頻干擾等等多方面的問題，這就要求在adsl開通之前對線路進行一系列的測試。
  8. The method is better than others. firstly, the system sets up several models to assist detection work, such as road model, illumination model, shadow model and relationship model among them ; secondly, it introduces hue. saturation degree information to distinguish vehicles from shadow ; thirdly, it makes use of binary decision tree to analyze pressing line of vehicles to improve the reliability of the system ; fourthly, it puts forward a way of one dimension video tracing to resolve the problem of vehicle velocity detection

    該方法通過設置在每條車道中的兩條相互垂直的虛擬檢測線來檢測交通流信息（如車流量、車速等） ；設計一種彩色分段檢測技術來提取運動車輛的尺寸信息和色彩信息，再利用分類決策樹和濾波演算法確定運動車輛存在與否，增強了車輛、陰影、噪聲和背景之間的區分能力；設計了一種車速視頻檢測方法。
  9. The dm642 uses a two - level cache - based architecture, level 1 cache is composed of a 16 - kbit l1p ( level 1 program cache ) and a 16 - kbit l1d ( level 1 data cache ), level 2 cache consists of 256 - kbit memory space that is shared between program and data space

    同時，研究了消除欠采樣噪聲演算法，並實現其處理功能。本文提出的系統設計方案，實現了高速、穩定、靈活的視頻採集處理播放平臺，可以高速而穩定的持久運行，達到了設計的要求。
  10. In general, a watermark system must satisfy the two basic requirements : imperceptibility and robustness. in this thesis, we proposed a frequency - based watermarking algorithm using toral automorphisms, in which a kind of toral automorphism is employed to mix a recognizable binary image ( bw ), which contains the copyright information, into a noise - like signal

    演算法簡單描述如下：首先用一個環形自同構映射把要嵌入的數字水印映射成偽隨機噪聲，然後把該偽隨機噪聲嵌入到宿主數據頻域的低頻段中，接著把得到的頻域系數進行相應的逆變換得到嵌入水印的圖象，最後對該嵌入水印的圖象進行視覺掩蔽處理。
  11. In the motion detection a method which is based on time and space is used for it can detect harmful invade object in spite of surroundings inteferre. in addition, after got the image of objects, the rectangle frame technique is used to fill the hole. in my design another part is multi - objects image tracking which is a new technique and it integrates image processing, automatic control and computer science. this technique can automatically acquire objects from image signal, get objects " position information then track them with the aid of dome

    本文中提出了若干有價值的新思想、新方法，完成了以下內容：首先，提出了數字視頻監控的功能結構，描述了數字監控系統的組成、特點和發展現狀；然後研究了適合於跟蹤監控的攝像機坐標系，提出了一種雙角度攝像機坐標以適合本系統的實際應用；討論現場圖像的預處理，其中包括灰度級變換、噪聲濾波和圖像恢復；在運動監測中，比較了幾種常用的運動檢測方法的優缺點，提出了一種基於時域和空間域的圖像檢測方法；另外，在得到運動物體的圖像時，採用矩形框技術填充由於差分圖像造成的孔洞，此方法簡單可靠，有較大的實用性。
  12. First, we analysis the general theoretical model of video segmentation. secondly, based on the model, an automatic detection algorithm of motion - changed regions is proposed from the point of fuzzy entropy clustering. motion - changed regions are detected, using a fuzzy clustering rule to distinguish between the relative noisy and motion - changed regions in time - differenced image

    論文首先討論了時差分視頻分割的一般理論模型，然後在建立的視頻分割模型的基礎上，從模糊熵聚類的角度出發提出了一種視頻運動變化區域自動檢測的方法，通過建立的模糊分類準則在差分圖像中對運動變化區域和相對噪聲區域進行劃分，從而得到運動變化區域。
  13. But the capture processes of digital video introduce noises unavoidably

    在視頻採集過程中，噪聲信號的引入是不可避免的。
  14. For the application of direct broadcast satellite ( dbs ), a ku - band high image rejection broadband mixer is designed using ads. it appears predominant performances when compared with common single balanced mixer

    針對衛星電視直播接收系統，用ads設計了一個寬頻帶、高鏡像抑制度、低噪聲的ku波段鏡像抑制混頻器，並同普通平衡混頻器進行了對比分析，顯示了其優越的性能。
  15. Future wireless applications, such as video cellular telephony, wireless internet access and wireless lans, have open a new field for wireless multimedia communication - image communication, which push a growing demand for fast, economic, low - energy mobile multimedia communication. however, there are still several bottlenecks - bandwidth, low - delay, power and noise etc, need to be solved

    然而由於無線視頻通信存在許多瓶頸與協議問題：包括帶寬要求、實時性要求、功率限制和通道噪聲等，面向無線的視頻編碼與傳輸技術已成為當今信息科學與技術的前沿課題。
  16. We tackle the problems with improved algorithms. firstly, we propose a new algorithm which compares the change of video fingerprints instead of comparing video fingerprints directly and interlace scanning is taken considered to make the algorithm more efficient

    在相似性匹配方面，採用比對視頻指紋變化量的方法，取代比較視頻指紋本身，來消除由於視頻處理及傳輸通道噪聲引起的亮度漂移的影響。
  17. This becomes increasingly critical as systems are being designed to combine circuits operating at lower power ( implying higher impedance levels ), higher speed ( implying lower nodal stray capacitance, faster edges, and higher frequencies ), and higher resolution ( much less output noise permitted )

    當今的電子系統常常包含著低功耗（意味著阻抗更高） 、高速度（節點寄生電容更小、信號邊沿更陡峭、信號頻率更高）和高分辨力（噪聲容限更小）等電路，因此這個問題尤其應該引起重視。
  18. Upon the background of detecting and tracking moving vehicles in an intelligent video - based road traffic surveillance system, in this thesis, we focus our research on some hard issues in detecting moving objects, such as updating background image, eliminate the disturbances of moving cast shadow and vehicle headlight, and propose a robust algorithm of detecting and tracking moving vehicles on road. we also apply our algorithm to an applicable road traffic monitoring system

    本文以智能化視頻道路交通監測系統中運動車輛的檢測與跟蹤為應用背景，對運動目標檢測中背景更新、陰影和車燈投影噪聲的消除等一些難點問題進行了深入的分析研究，提出了一個穩定的運動車輛檢測和跟蹤的演算法，並在此基礎上完成了實用的視頻道路交通監測系統的設計與開發。
  19. Noises will degrade the visual quality of captured video and affect efficiency of other video - processing device, e. g. the noises will degrade the quality of video compression

    這會嚴重地影響採集視頻的視覺質量，並降低了其他后繼處理模塊的性能，比如噪聲信號會降低視頻壓縮演算法的質量。
  20. Regarding the suspension system as a substructure ( subsystem ) appended on the car body, and considering the vibration transfer effect of the suspension system for the displacement excitation induced by unevenness of road surface, an explicit formula about the quantitative relationship between the sound pressure of low frequency interior noise and some of the suspension characteristic parameters of a vehicle, i. e., the stiffness, the damping, the under suspension mass of suspension system, and the radial stiffness, the radial damping of tire, is deduced based on the dynamic substructure modification method for structure - acoustic coupling analysis of an automobile ' s passenger compartment

    摘要基於車身乘坐室聲振耦合的動態子結構修改方法，將汽車懸架系統視為附加於車身上的子結構（子系統） ，並結合懸架系統對路面不平度位移激勵的振動傳遞效應，揭示出車內低頻噪聲的聲壓值與懸架系統剛度、阻尼、非懸掛質量以及輪胎徑向剛度、徑向阻尼間的直接定量關系。
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