interferogram 中文意思是什麼
interferogram
解釋
反干擾的-
Interferogram region spreading technology based on exemplar matching
衍射效率延遲速率對脈沖特性的影響 -
Computer image - processing techniques used in automatic and real - time ana - lysis of interferogram
干涉圖自動實時分析中的計算機圖像處理技術 -
3 ) unwrapped interferogram after fringe edge detection using dyadic wavelet and edge linking by active contour model ( snake model ). 4 ) analyzed the effects of atmospheric factors to insar dem extraction and the turbulent character of atmospheric term
3 ）利用二進小波對干涉相位圖的條紋邊緣進行檢測，並用主動輪廓線模型（ snake模型）連接條紋邊緣，在此基礎上對干涉相位圖進行解纏。 -
3 ) for weak noise interferogram or filtered interferogram, dyadic wavelet can be used to detect fringe edges. a gvf snake model was used to link discrete edges, the linked edges were kept well accordance with fringes of phase map. 4 ) phase unwrapping algorithm based on edge detection is suitable to well separated fringes, the unwrapped phase can be rewrapped to the original phase map
4 ）對于低噪聲情況下或濾波后的干涉條紋圖，在基於邊緣檢測的相位解纏過程中，利用snake模型可以高效準確的實現邊緣點的連接，所連接的邊緣線與干涉條紋很好的吻合，可將連線的精度控制在三個像元。 -
The filtering research of simulative interferogram in insar
在模擬干涉相位圖中噪聲的濾波研究 -
The contoured window filter for interferogram and the application of video measurement in national defense examinations
干涉條紋圖處理的等值線窗口濾波和攝像測量在國防試驗的應用 -
We obtained holographic interferogram, from which we got the space distribution of plasma electron density by abel inversion
由全息干涉條紋圖樣求解等離子體電子密度空間分佈要用到abel變換。 -
2 ) set threshold in stationary wavelet domain to separate edge and noise, estimated wavelet coefficients in texture area to reconstruct the interferogram
3 ）在靜態小波域設置濾波閾值以區分邊緣和噪聲，根據map準則來確定信號的小波系數，然後重建干涉相位圖。 -
After that, algorithms about the analysis of interferogram were realized in matlab. the related program analyzes the interferogram, and gives the three dimension profile of sample surface
建立了干涉圖像的採集、位相計算、消跳變處理和波面擬合的相關演算法，並用軟體實現了這些演算法。 -
After investigating statistical property of the interferogram, the problem of interferogram phase denoising filtering is discussed. the filtering can be aimed at not only the complex image, but also the phase image
分析了干涉圖相位統計特性，討論干涉圖相位降噪濾波問題，濾波可以針對干涉復圖像進行，也可以直接對干涉相位圖進行。 -
A terrain adaptive interferogram filtering method is proposed based on the classical adaptive filtering algorithm. the new method can suppress noise and keep the useful information at dense fringe areas in the same time
在研究經典濾波方法的基礎上，提出了一種地形適應的自適應干涉sas濾波方法，在抑制噪聲的同時，新方法保持了干涉條紋密集區的信息特徵，具有很好的濾波效果。 -
Point diffraction interferometer - a physical idea, is invented by smartt and strong in 1972, advanced by smartt and steel, and used to test astronomical telescope, it has simple structure and has not special demand to source. recently. with the development of fiber ' s manufacture and coupling technology. the simple modern fiber ' s center is smaller than before, this make it possible to progress fiber point diffraction interferometer ( pdi ), in addition to test convergent wavefront, it can test the reflective concave. the excellence of pdi is that it does not need standard mirror. in intereference testing, the standard mirror is the main reason which limit the improvement of precision, pdi can avoid difficulty to provide the wide future for high precision testing. pdi, which produce the standard sphere wavefront, is an instrument which realize the phase shifting with piezoelectric transducer ( pzt ), and collect the interferogram with ccd, in this paper, a adjusting methord is described, then data processing is obtained
點衍射干涉儀這一物理思想，早在1972年smartt和strong就已發明，由smartt和steel做了進一步發展，並成功的用於檢測天文望遠鏡，它結構簡單，對光源沒有特殊要求，近年來，由於光纖製造工藝以及耦合技術的發展，單模光纖纖芯不斷縮小，為光纖點衍射干涉儀得以發展提供了前提條件，該干涉儀由激光照明，除了檢測會聚波前外，還可以用來檢測反射凹球面，進而應用到單個面形的檢測；另外，光纖點衍射干涉儀最大的優點是不需要標準鏡，在干涉檢測中，標準鏡是檢測精度受限的很大原因，光纖點衍射干涉儀能繞開這一難度，為進行高精度的光學檢測提供了廣闊的前景。 -
7. based on our crsi and algorithm and double lcslm, an adaptive optical hardware system which c & n be used to model arbitrary complicated wavefront and the compensation of the wavefront can be accomplished was built. and according to the characteristic of a crs interferogram of a step wavefront produced by an lctv, the pixel - level calibration of this system is implemented
七、採用已建立的空間相位調制環路徑向剪切干涉儀及其波前重建演算法，和位相調制持性已知的兩塊液晶空間光調制器，創建了一套用於模擬產生任意畸變波前並加以檢測和反饋控制的自適應光學硬體系統，並通過臺階波前對該系統實現了像素級校準。 -
2 ) tansformed the real part and imaginary part of interferogram to stationary wavelet domain, analyzed the pdf of signal and noise wavelet coefficients using pearson distribution system, then evaluated the wavelet coefficients of signal in stationary wavelet domain by maximum a posterior ( map ) criteria to reconstruct the interferogram
2 ）將干涉圖的實部和虛部分解到靜態小波域，用pearson分佈系作近似，分析了信號和噪聲小波系數的概率密度函數，在靜態小波域用map準則估計信號的小波系數用於干涉圖的重建。 -
Firstly the phase is extracted from interferogram by filtering and displacing frequency spectrum. then the wavefront and the line integral density are recovered by using fft or polynomial fitting method. lastly the radial local density distribution is calculated from the fitting curve of line integral density by the abel inversion
首先對干涉圖進行頻譜濾波，用頻譜移頻法從干涉圖中提取相位，然後用快速傅立葉變換或多項式擬合實現波面重建，計算線積分密度，再利用abel積分變換從線積分密度的擬合曲線中反演徑向體密度分佈。 -
First. adjust the fiber to get the interferogram, use the four - step phase shifting method control the change of phase, achieve phase shifting. in data processing, take the pzt ' linear influence into account, calibrae the pzt. unwrapping the phase, gain the continuity, get the actual phase. analyzing the data with zernike orthogonal methord, fit polynomials that are not orthogonal over the data points, through visual c + + program, obtain polynomial parameters. calculate the shape of the surface, compare the result with zygo, then achieve the better experimental result
首先，經光纖耦合輸出調整得到干涉圖，採用四步相移方法，控制干涉圖位相變化，實現相移；數據處理過程中，考慮壓電陶瓷的非線性影響，進行標定；對位相進行模式展開連續性處理，得到實際位相；用zernike多項式正交化方法分析，在離散點上處理數據，經visualc + +程序設計，得到多項式系數，計算出面形分佈，同zygo所得結果進行比較。 -
So the flow field visualization in intake duct was realized. according to the experimental requirements, tow different transparent intake duct model were designed. a real - time holographic interferometry measuring system was developed, in which he - ne laser was used as light source, and a ccd ( charge coupled device ) video camera was used to grab the interferogram. a intake simulation system was build - up
本文根據研究要求，用甲基丙烯酸甲酯製作了兩種不同類型的進氣道透明模型；設計並建立了利用he - ne激光器做光源的實時全息干涉測量光學系統；設計了一套能夠模擬進氣道在某一氣門升程時的進氣系統，用mtv - 1802cbccd攝像機對干涉條紋進行了實時採集。 -
The filtered results to a real interferogram showed the proposed method is powerful to interferogram speckle noise reduction, as well as it can preserve fine details in the interferogram that are directly related to the ground topography and maintain phase values distribution
對一幅干涉相位圖的濾波結果表明，該演算法很好的抑制了斑點噪聲，極大的降低了殘余點的數量，保持了條紋邊緣和相位細節信息，並使絕對相位保持在一定的動態范圍。 -
It is widely used to measure optical element, optical system, detection of optical surface and the physical quantities ( such as field of temperature, field of density ) related with optical path difference. the underlying measurement principle of psi is to determine the phase of the intensity signal in interferogram received at each pixel of an imaging device
移相干涉術（ psi ）作為快速、非接觸的精密測量手段，已經廣泛地應用於光學零件、光學系統、精密表面檢測和其它一些與光程差參數相關的物理量的測量（如溫度場、密度場等） 。 -
Phase - shifting errors have a great influence on the measuring - accuracy. a few of algorithms have been developed to solve linear phase - shifting errors, but ca n ' t solve the problem of random phase - shifting errors. an iterative least - squares fitting method has been proposed by in - bok kang to solve random phase shift errors in each interferogram
在這種方法中相移的誤差對測量結果的準確性有較大影響，雖然已經出現了不少演算法能解決線性相移誤差，但要解決相移過程中的隨機相移誤差問題，還存在一定的困難。
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