detection filtering 中文意思是什麼
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Fast median filtering algorithm in target detection
目標檢測中的快速中值濾波法 -
This paper studies to get the image of thenar by using a video camera, and carries on the necessary image processing by software with the information captured, and gets the ideal image to provide the image data basis for follow - up cad after the processing such as median filtering, sobel or kirsch ' s operator edge detection, image reversal and image enhancement etc. in this paper, the pressed image information of thenar captured by camera have been carried on processing and analyzing, and the result has been compared with that of image acquired by the scanner
本文研究了利用攝像頭獲取腳底圖像，再通過軟體將所獲信息進行必要的圖像處理，經中值濾波、 sobel或kirsch運算元邊緣檢測、亮度調整及反置、圖像增強等處理后，得到滿意的圖像為后續的cad提供圖像數據依據。本文對攝像頭採集的足底受壓圖像信息進行了處理和分析並與掃描儀的圖像處理結果進行了比較，由結果得知攝像頭輸入方法是一種簡單實用的輸入方法，且能很好的滿足設計要求。 -
Study on second filtering algorithm based on tracing the interfering spectral peaks of radar non - contact life - parameter detection system
基於雷達式非接觸生命參數檢測中跟蹤干擾譜峰的二次濾波演算法研究 -
This new family of dsp enables cost - effective design of intelligent controllers for brushless motors which can fulfill more conditions, consisting of fewer system components, lower system cost and increased performances. in the aspect of vibration detection and analysis, the system gets two - way vibration signals. after magnifying and filtering, the signals are inputted to dsp, and are analysised by dsp based user ’ s demand
振動測試分析部分採集兩路振動信號，經過隔離放大、濾波等信號調理電路后輸入dsp的片上ad模塊，在dsp上構建相應的數據採集模塊，以及濾波、時域分析、幅域分析等多種數字信號處理模塊，根據用戶需求對旋轉機械作相應的檢測與診斷。 -
On the basis of study of fractional fourier transform and its digital computation, the main aim in this paper is to study the applications of fractional fourier transform in lfm signal detection and parameter estimation, to research filtering of lfm signal in the fractional fourier domain and the digital image watermarking in the fractional fourier domain
本文以研究分數階fourier變換的基本理論與應用為目標。在深入分析分數階fourier變換原理和數值實現的基礎上，對lfm信號的檢測與參數估計， lfm信號的分數階fourier域濾波，以及二維分數階fourier變換在數字圖像水印中的應用作了研究和模擬實現。 -
The paper overviews the history of moving targets detection and imaging based on sar, the methods based on doppler filtering, doppler rate filtering, parameter estimation and multichannel sar imaging are discussed in detail. the paper focuses on the two methods used in spaceborne sar which are displaced phase center antenna and along - track interferometric
論文回顧了合成孔徑雷達檢測與成像運動目標的發展歷史，詳細地論述了基於多普勒濾波、基於多普勒速率濾波、基於參數估計以及基於多通道sar的運動目標檢測與成像方法。 -
Abstract : applying the frequency - domain representation of the complex signals in a three - phase system, a harmonic detection method based on the in - phase correlation filtering was put forward in this paper, which can be used to detect effectively the generalized harmonics in the three - phase system except the fundamental of positive sequence
文摘:採用三相系統復信號的頻域表示並根據頻譜搬移原理，本文提出了一種基於同步相關濾波的諧波檢測方法，可用於三相電路中除正序基波以外廣義諧波的有效檢測。 -
Considering that the time of image preprocessing is the key fact affecting the performance of real time, it designs hardware circuits for median filtering and edge detection. the pipelined and parallel processing methods are used in circuit design to raise processing speed and save hardware resource
針對影響系統實時性最大的圖像預處理部分，在fpga設計中，實現了預處理的中值濾波和邊緣檢測硬體電路，將流水線處理技術和并行處理等技術應用到電路設計中，提高了處理速度，節省了硬體開銷。 -
Visual analysis of human motion has been receiving increasing attention from researchers in the fields of image processing and computer vision during the past few years. it has a lot of applications in virtual reality, smart surveillance system, advanced user interface, motion analysis and video compressing, etc. this paper focuses on the technology of human motion tracking based on video, first, we make a summarization of the domestic and overseas status of the research in this field. on the basis of this, we analyse the technical difficulties of human motion tracking. as most of the existing model - based methods of human motion tracking perform not so good in some situation as they need mannual intervention, and also the precision of tracking is not so satisfying during the research of tracking of walking people because of the self - occlusion of legs, this paper proposes an algorithm of automatic detection and tracking of legs of the walking people based on monocular image sequences, in which we analyse the features of walking people, track the five joints of lower limbs, get various parameters, and then re - construct the walking process. the main research achievement is as follows : 1 ) we propose an algorithm of markerless automatic extraction of leg skeleton. first we divide the video into continuous image sequences, after background subtraction, the satisfying human region could be extracted, then we get a single - connected region by converting the rgb image to binary image and median filtering. afterwards, the contour of lower limbs in the frame with a widest boundingbox is detected, using sobel operator, to find the ankle joint of leg behind according to the features and rules of walking, then, the joint of knee of leg behind, hip, ankle of leg in front, knee of leg in front could be got in turn. so, model of leg skeleton is constructed
首先將視頻分解成許多連續的靜態圖像幀，經過背景去除，把感興趣的人體區域提取出來，通過二值化，中值濾波等預處理方法得到只有人體的一個單連通區域，然後用sobel運算元檢測出boundingbox最寬幀中人體下半身的輪廓，根據運動規律及特徵找到後腿踝關節點，結合從boundingbox最窄幀中所獲取的腿長依次得到後腿膝關節，跨部關節，前腿踝關節，前腿膝關節四點，從而構建出腿部骨架模型。 2 ）實現了人體步行腿部骨架的跟蹤演算法。在完成對腿部骨架模型的自動初始化之後，本文對跨關節、膝關節及踝關節分別採用運動建模、圓周相交定點演算法、運動預測及預測點周圍搜索rgb相似矩形塊三種方法確定每一幀中其實際坐標，從而重構出腿部骨架的運動過程。 -
Although there are many literatures describing ultrasonic detector for traffic flows, none of the same category has referred the techniques applied in the design herein such as multi - sensor construction, automatically establishing datum line regardless of suspension height, digital filtering and multi - lane detection as well as measuring length of motorcade
目前有關超聲波車流檢測器的文獻較多，但本設計中採用的多探頭結構、自動標定超聲波探頭的架設高度、數據濾波以及多車道測量和檢測車隊長度等技術在同類設計中未見使用。 -
Especially, the necessary security assurance meseares are designed in detail, including e - mail check and filtering, virus detection and protection, firewall configuration, and etc. meanwhile, suggestions for effective security management are put forward according to is017799 standards
在方案中，特別對電子郵件過濾檢測，入侵檢測，病毒檢測，防火墻設置，應用vlan技術和vpn設備解決敏感資源保護和通訊保密問題等多方面提出了具體的解決方案。 -
From theoretical analysis, we know the existing demodulation methods have limitations as following : one is that the subtraction of the two signals frequencies will display as the result of demodulation when we demodulate two time - domain adding signals without modulating information ( fault information ) ; the other one is that aliasing phenomenon will occur as a result of getting absolute value, detection or square in the process of generalized demodulation analysis, such phenomenon will result in some superfluous frequency composition on the frequency spectrum, which will puzzle the detec tion of mechanical vibration. if the sampling frequency is selected from a suitable range, the aliasing phenomenon will be avoided ; the last one is that aliasing frequencies will be produced in zoom demodulation analysis because this algorithm cannot employ digital low - pass filtering to avert the folding frequencies of higher harmonics in the process of zoom sub - sampling
現有的解調分析方法存在以下三種局限性：將不包括調制信息（故障信息）的兩時域相加信號，也以其頻率之差作為解調信號而解出；廣義檢波濾波解調分析中，由於取絕對值、檢波或平方過程可能產生混頻效應，在解調譜中表現為無法分析的頻率成分，並由此推導出避免這種混頻現象的采樣頻率的選取范圍，從根本上避免此類誤診斷的產生；幾種細化解調分析新演算法中，因為無法在細化分析的選抽時進行數字低通濾波，有可能會出現調制頻率的高次諧波成分發生頻率混疊而反折到低頻部分的現象。 -
Based on the brief analysis of the principles, applications and key technologies of distributed event notification services, this dissertation focuses study on the content - based event filtering, composite event detection, and configurable architecture of distributed event notification services. firstly, the filtering mechanism of content - based pub / sub system is studied
論文在分析和總結分散式事件系統的原理、應用和關鍵技術的基礎上，對基於內容的事件過濾技術、復合事件檢測技術和動態可重配的分佈事件通知服務的體系結構等方面進行了重點研究。 -
The following important work has been done : ( 1 ) some special problems of rate - bias laser gyro were analysed. the problems include modulation and demodulation of the output and algorithm of the attitude updates ; ( 2 ) the integrated navigation system with the fault tolerance property which equipped with many navigation equipments as sins, gps, dvs, ads, mg, vg is designed, and compared with that of ckf via simulations ; ( 3 ) the theories and methods of system level fault detection apply to federated filtering is investigated ; ( 4 ) the problem about using the fused information of sins based on rate - bias laser gyroscope / dynamical tune gyroscope to realize the component level hard fault interactions detection through a back - propagation neural network is discussed
主要研究工作有：研究了速率偏頻激光捷聯慣導的陀螺測量信號的解調演算法；設計了在速率偏頻激光捷聯慣導、 gps 、多普勒雷達、大氣數據系統、磁航向儀及垂直陀螺配備條件下聯邦濾波組合導航系統，對聯邦濾波器和集中濾波器的性能做了模擬對比分析；研究了適用於聯邦濾波器的系統級故障理論和方法；探討了利用速率偏頻激光捷聯慣導撓性捷聯慣導陀螺的混合測量信息，通過神經網路實現硬故障交互檢測的方法。 -
Each demodulation analysis technique has its merits and limitations. in this paper, the principal and limitations of the hilbert transform and generalized detection - filtering demodulation analysis are systematically studied
通過系統分析和對比現有幾種解調分析方法各自的優缺點，本文深入研究了希爾伯特變換和廣義檢波濾波解調分析技術的原理、局限性及其工程中的應用。 -
The main content of this paper is about sensors " type - selection in testing system, the sensors " fault - detection and fault - tolerance, and the correlative signal processing algorithms, providing the control system with accurate and reliable uncompensated signal and filtering - delay - compensation signal
本文的主要內容是研究檢測系統中傳感器的選型、故障檢測與容錯及相關的信號處理演算法，為控制系統提供準確可靠的未平衡離心加速度信號和濾波延時補償信號。 -
Due to the two different tasks of obstacle detection : recognition of obstacles from roadsides and accurate positioning the obstacles, the dempster - shafer evidence theory based identification and extend kalman filtering based target tracking technique were adopted respectively
具體地說，是採用了基於d - s證據理論的身份識別技術和基於擴展卡爾曼濾波的目標跟蹤技術，來分別完成障礙檢測中障礙和路邊的識別以及障礙準確位置的確定兩大主要任務。 -
The polarimetric information in the target scattering signal has great potential on target detection, enhancement, filtering and recognition. some novel techniques can be proffered for detecting concealed targets, weakening the influences of adverse em environments, confronting active jamming and recognizing targets. basic theory of radar polarization is studied firstly
雷達目標散射信號中的極化信息在目標檢測、增強、濾波及識別中有著巨大的應用潛力，為雷達系統在反隱身、削弱惡劣電磁環境的影響、對抗有源干擾和識別目標等方面提供了新的技術途徑。 -
It gives assistance to improve efficiency of the multiple frames accumulation. by analyzing the merits and demerits of several kinds of preprocessing, such as highpass filtering, median filtering, tophat transformation in mathematical morphology and wiener filtering, the local singularity filtering based on improved susan principle has been given, and it has a high power to raise the probability of target detection in single frame
良好的預處理將提高后續的多幀積累的效率，對比常用的幾種預處理演算法，如高通濾波、中值濾波、數學形態學的tophat濾波、維納濾波等方法的優點和不足，提出了一種改進的susan濾波器? ?區域奇異性濾波，該濾波方法對于提高單幀檢測概率有很好的功效。 -
Two new kinds of detection - filtering mechanism are proposed in this paper. they are distributed attack detection - filtering mechanism ( dadf ) and local attack detection - filtering mechanism ( ladf )
在此基礎上，本文提出了兩種新的攻擊檢測?過濾機制，即：分散式攻擊檢測?過濾（ dadf ）機制和針對tcp洪流攻擊的本地檢測?過濾（ ladf ）機制。
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