speckle field 中文意思是什麼

speckle field 解釋
散斑場
  • speckle : n. 斑點；斑紋〈常用 p. p. 〉。vt. 1. 加斑點。2. 玷污。3. 點綴。
  • field : n 菲爾德〈姓氏〉。n 1 原野，曠野；（海、空、冰雪等的）茫茫一片。2 田地，牧場；割草場；〈pl 〉〈集...
  1. When the speckle interferometry or the electronic speckle pattern interferometry ( espi ) is applied to measure the continuous movement or deformation of an object, a temporal speckle interference field will occur

    散斑干涉或電子散斑干涉（ espi ）計量應用於連續運動或變形物體時，就會產生一個時變的散斑干涉場。
  2. We can obtain the sequence of speckle interferograms by continuously recording the temporal speckle interference field caused by the object temporal deforming using the imaging system

    通過攝像系統連續地採集這一時變散斑場，可獲得一系列時間序列散斑干涉圖。
  3. Though there are many methods in the field of speckle filtering, it lacks deep study of methods selection with different images and in different atr missions

    本文對採用空間域常用的濾波演算法、時間頻率域相結合的濾波演算法濾除sar圖像噪聲的結果進行了比較。
  4. So knowing the distributing law of the strain field and how the strain field changes with the actuator ' s size is necessary in this text, electronic speckle pattern interferometry is used to test different strain fields produced by bonded actuators with different size. after the fringe is thined, its spine is got. based on the theory of speckle metrology, the displacement from the fringe is got, at last the strain field and how the strain field changes with the actuator ' s size is got

    本文用電子散斑干涉法對不同尺寸的粘貼型壓電驅動器的誘發應變場進行了實驗研究，將所得的干涉條紋進行細化處理，得到干涉條紋的骨脊圖，根據散斑干涉計量術的原理對干涉條紋骨脊圖進行數值計算，得到誘發應變場的位移圖以及粘貼型壓電驅動器的尺寸變化對誘發應變場的影響。
  5. Speckle is caused by object ' s micro - structure, with more less - correlated random structure co - interference in the imaging field, the speckle can be depressed greatly

    採用面內多幀平均和動態採集方式可以有效的抑制散斑噪聲，綜合利用這兩種方式可以更好的提高測量精度。
  6. Math. and physics department, yanshan university, qinhuangdao 066004 ) [ / align ] [ align = left ] [ b ] abstract [ / b ] : through the pictures taken by means of laser speckle on the metal material weldment, we can obtain double - exposed displacement patterns at a temperature range. by point - to - point analysis heat displacement field at the welding points can be measured, and the distribution of thermal strain and thermal stress can be obtained. as a result, the flaws at welding points can be measured through experiments

    本文應用激光散斑法，其測量靈敏度介於全息干涉法和雲紋法之間，象所有其它散斑法一樣，它是一種非接觸式的測量技術，對環境及設備條件要求不高，對被測件表面不需進行特殊處理，可在生產現場對實際物體進行測試。
  7. In this paper, we analyzed the modulation of the interference intensity of each pixel on the time sequence speckle patterns in the time domain and proposed a new phase retrieve method, time sequence phase method ( tspm ), in which the time sequence speckle interferograms are used to obtain the whole field deformation of the object

    本論文通過對序列散斑圖上各點在時間軸上散斑強度調制函數的變化進行分析，提出了一種基於時間序列的散斑干涉場的相位解調方法，進而獲得物體全場變形信息。
  8. Chaper 4, we put forward the concept of the near - field speckles and study their properties by the numerical solution of the integral equation based on the green ' s theorem. we study the near - field speckles produced the by random self - affine fractal surfaces of dielectric medium. the speckle intensities evolve considerably in the near - field region and the local fluctuations in them disappear in the distance of a wavelength

    在第四章中，我們提出了近場散斑的概念，並依據介質界面電磁波的格林積分摘要方程對自仿射分形隨機表面產生的散斑光場進行了數值計算模擬研究，發現近場散斑分形特徵與自仿射分形隨機表面的特性有關，且這種分形特徵在非近場區域消失。
  9. The digital speckle pattern interferometer was studied in detail. in this dissertation, as a new micro - imaging and precision metering technology, dspi has not been applied into all kinds of instruments in our country until now, on the other hand, there is n ' t replacement for it in some special applied field

    本論文主要研究了數字散斑干涉技術（ digitalspecklepatterninterferometer ，後文簡稱dspi ） ，數字散斑干涉技術的應用在國內尚屬空白，該技術在理論和實用領域均有新穎和獨到之處。
  10. Up to now, the speckle problem is still a pinch point in sar images processing field. the classic spatial filtering algorithms and the refined algorithms can restrain speckle to a certain extent, but they do not make full use of polarimetric information when applied to speckle reduction for polarimetric sar images

    現有的各種空域濾波演算法及在此基礎上改進的各種演算法到引入小波變換進行濾波，均能在一定程度上抑制相干斑，但是應用到極化sar圖像相干斑抑制中，都存在未能充分利用極化信息的缺陷。
  11. This paper introduces main fields in sar image processing and the introduction emphasizes on speckle suppression which is the main field our task researches on ; this paper also introduces mga and the introduction emphasizes on curvelet transform and contourlet transform

    本文介紹了sar圖像處理的主要分支，重點討論了本課題的主要研究領域? ?相干斑抑制;介紹了多尺度幾何分析技術，重點研究了curvelet變換和con - tourlet變換。
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