旋轉掃描 的英文怎麼說
中文拼音 [xuánzhuǎnsǎomiáo]
旋轉掃描
英文
spin scan-
First, resistance to geometrical distortion was obtained by using moment normalization ; second, we focus on the phase of fourier - mellin transform. before detecting watermark, synchronization could be retrieved by using the phase information. to eliminate the influence of pixel value distortion generated during print / scan process, a dft - based robust watermark algorithm was designed, which could successfully detect watermark from a severe distorted image
另一種思路是根據圖像經過旋轉、縮放、平移后，其傅立葉?梅林變換域只有相位受到影響的特點，從其相位中提取幾何失真信息，然後再進行相應的失真補償，從而消除幾何失真的影響；對于列印掃描過程產生的像素值失真，本文也提出了一種基於dft的魯棒性演算法，能在較嚴重的圖像失真情況下，成功檢測水印。Study on the laser scanner is very important since fluctuate of rotating speed of the motor, wobble of the shaft of the laser scanner, tremble introduced by motor changing phase, shake generated out of dynamic balance, turbulence introduced by the deflector rotating at high speed have an influence on rotating shaft and light beam so as to decrease quality of the laser imagesetter
轉速的波動、掃描器主軸的晃動、電機換相過程中的抖動、動不平衡產生的震動、轉鏡高速旋轉產生的湍流對轉軸和光束的影響等諸多因素，直接影響激光照排的質量。所以，對轉鏡式激光掃描器的研究有十分重要的意義。The arc has a sweep angle of 180 degrees, which is counterclockwise in the default coordinate system
該弧的掃描角為- 180度，此角度在默認的坐標系中是按逆時針方向旋轉的。Introduced the coefficient of sweep zone, the condition of complete coverage of circumference for the pipeline has been extensive studied for a few types of sensor carriers, such as multi sensor array, multi rotating sensor array and single sensor rotating reflector
首次引入掃描帶重疊系數的概念，建立了多探頭陣列式、多探頭旋轉式和單探頭旋轉反射鏡式檢測頭的不漏檢條件。Based on the relationship between the change of the cornea thickness and optical path length, the ablation profile for the correction of wavefront aberration is presented and simulated on computer. the process of scanning - spot excimer laser is studied and simulated on computer. models for calculation of residual wavefront aberration on situations of lateral decentration and torsional misalignment are brought up
使用改變光程的方法建立起波前像差與角膜切削量之間的關系，並對像差矯正模型進行計算模擬;深入研究了小光斑準分子激光飛點掃描模型，對飛點掃描過程進行計算模擬;提出了中心偏移和旋轉情況下剩餘像差計算模型，為定量研究切削中心定位精度對像差矯正的影響提供了依據。A quick spectroscopic diagnostic system for the flame temperature is set up in this paper. it consists of an optic imaging system, a scanning system, a dispersive system, a photoelectricity conversion cell, operational amplifiers, a computer - based data collection system and a data processing. the temperature profile varying with the time can be quickly measured by this system
目前光學診斷由於其相應快、精度高，屬于非接觸式測量手段，在研究中得到越來越多的應用，這里要介紹的就是本文中建立的一套光學診斷系統，它由高壓燃燒室、旋鏡掃描儀、旋鏡控制器、小型光柵攝譜儀、光電轉換裝置，微弱信號放大器以及數據採集系統組成。The letter in these factors is not ignorable in rotating shafting at high speed because of effect of it on power of the laser scanner
對于高速旋轉的軸系，後者不可忽視，其主要影響掃描器的功率。With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas
相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。The method for medical model reading, and simulation of the swept - volume display process has been carried out. the dissertation solves the key problems of rotational motion swept - volume technique in true 3d volumetric display. the method of modular design, the theory and the simulation of display unit and graphics engine have made good preparation for engineering implementation in the future
本論文研究的目的是為了解決真三維立體顯示中旋轉體掃描顯示技術的關鍵問題，文中所提出的模塊化的設計、對顯示單元和圖像引擎的研究以及模擬，為真三維立體顯示系統的工程實現做好了非常必要的前期研究工作。This dissertation first discusses the two - dimension interpolation algorithm and coordinate rotation digital computer algorithm involved in the process of designing system. then the paper particularly probes into the research and development of b - mode digital scan converter, m - mode digital scan converter and graphic circuitry in the digital scan conversion system
本文首先對系統設計過程中引入的二維線性插值演算法和坐標旋轉數字計算演算法進行了討論，然後著重論述了數字掃描變換系統中的b型數字掃描變換器、 m型數字掃描變換器和圖形界面電路的原理、設計與實現。Then, the display unit and graphics engine of rotational motion swept - volume technique are particularly studied, and the modular method is presented
接著，分別對旋轉體掃描顯示系統的顯示單元和圖像引擎進行了詳細的研究，提出了模塊化的設計方法。A variety of methods are used, including static - volume technique and swept - volume technique. the rotational motion swept - volume technique is mainly discussed in this dissertation
真三維立體顯示主要使用的方法有靜態體成像技術和體掃描技術，本文主要研究旋轉體掃描顯示技術。Aiming at the laser non - cntact measuring system for 3 - coordinate of inner and exterior surface of shell provided in ref. the process of scanning and the coordinate conversion of measuring data are discussed, the method of geometrical parameters calibration is emphatically discussed in this paper
摘要針對文獻介紹的迴旋殼體內外曲面三坐標激光非接觸測量系統，敘述了其掃描工作過程，討論了測量數據的坐標轉換，重點討論了幾個幾何參數的標定方法。To show a rotating object, we can scan - convert into the pixmap successive views from slightly different locations, one after another
比如要顯示一個旋轉的物體，我們需要在前後連貫，變化不大的視點上一次接一次地進行掃描轉換。One has to set up a point source in the far field and rotate the system in the fan beam direction. the difficulty is mainly due to the incomplete test environment
但是，測量g矩陣不是一件很容易的工作，必須旋轉儀器掃描遠場的點源得到，測試條件要求比較苛刻。Improved algorithm for generated radar image are presented in chaper 4 : 1 ) acipss is improved in radar echo generation. new method is to combine acipss with single back buffer display. the combination realize high level simulation of true antenna sweep effect
1 ）採用掃描線求交回波生成演算法和單后備緩存顯示相結合的方法比較好地實現了雷達回波旋轉掃描顯示的高質量模擬，這將在第四章第一節中詳細闡述。Methods : spiral ct ( sct ) scanning technology, digital image transfer and transcription were used to obtain the initial 3 - d data of the upper central incisor
方法：採用螺旋ct掃描、數字影像傳輸與轉錄方法，獲得中切牙三維形態的原始數據。The dissertation focuses on analysing and studying the development of rotational motion swept - volume technique, imaging principle, key technologies of display unit and graphics engine, and simulation of the work principles
論文分析和研究了旋轉體掃描顯示技術的發展，成像原理，顯示單元和圖像引擎的各個關鍵技術，並對其中的工作原理進行了模擬工作，驗證了理論的正確性。分享友人