點擴展函數 的英文怎麼說

中文拼音 [diǎnkuòzhǎnhánshǔ]
點擴展函數 英文
point spread function
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 擴 : 動詞（擴大） expand; enlarge; extend
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. Generally, an aperture radius of two to three times the fwhm of the psf is a good value

    一般的，孔半徑設置為點擴展函數的半寬值的兩到三倍比較好。
  2. The software will display the snr, fwhm and rms values found

    軟體將顯示它們的信噪比，點擴展函數和均方差值。
  3. Restoring turbulence - degraded images based on estimation of turbulence point spread function values

    基於估計點擴展函數值的湍流退化圖像復原
  4. In order to improve the reasoning algorithm in multiple value causality diagram, which could not deal with the fuzzy case, a fuzzy reasoning algorithm was presented. it extended the definition of the multiple value causality diagram with fuzzy. the fuzzy mapping relation between every event variable and every reader variable was made

    該演算法對多值因果圖進行了模糊擴展定義，使每個基本事件或節點事件變量對應一個能夠連續取值的讀數變量，在讀數變量和事件變量之間建立模糊對應關系，用讀數變量的取值相對於事件變量各狀態的隸屬度函數來表達模糊知識。
  5. First of all, the data system in the article is discussed and the goal function used to optimize the agricultural structure and the inhabitable condition are offered. then according to the characteristic of agricultural data system the logical structure of data bazaar in the data warehouse in the system is designed and the program for drawing out the data for data warehouse are offered. and we use the analysis services in sql server 2000 to design the multi - dimension data volume, which laid the groundwork for the later olap and data mining, we make use of the technique of mining the association rules to discover the rules in the data which are processed in a certain extent

    本文首先探討了該系統中的數據指標體系，給出了相應的優化農業結構使用的目標函數和約束條件；然後根據農業數據的特點，設計了該系統中的數據倉庫中的數據集市的邏輯結構，給出了相應的數據倉庫數據的抽取程序；利用sqlserver2000中的analysisservices設計了數據倉庫的多維數據集，為後面的聯機分析處理和數據挖掘打好了基礎，並利用關聯規則挖掘技術，對經過一定處理之後的數據進行挖掘；最後選擇windows2000作為網路服務器、 sqlserver2000數據倉庫的服務器、利用microsoftvisualinterdev 、結合asp 、 frontpage 、 photoshop等作為系統開發平臺，設計開發基於intranet的農業結構優化決策支持系統，使得決策支持系統在intranet進一步擴展。
  6. On the basis of increasing the flaw resolution of the x - ray radiographic system, the study is firstly concerned with the analysis made on the influence of such factors as redial sources energy, system noise, optics radiography and scattering on the radiographic system in theory, and the present dissertation looks at the methods for acquiring the radiographic system point sp read function, line spread function and module transfer function ( mtf ). on the basis of these studies, research the spread properties of the tiny flaw making use of mtf, acquiring the properties of system inspecting sensitivity and resolution, based on the system optimization designing

    本文以提高射線成像系統的疵病解析度為前提，首先在理論上對射線源能量、系統噪聲、光學成像、散射等各環節對成像系統的影響進行分析，探討成像系統的點擴展函數、線擴展函數及其調制傳遞函數（ moduletransferfunction ，簡稱mtf ）獲取方法，在此基礎上，利用mtf研究微小疵病的擴展特點，從而得到系統的檢測靈敏度和解析度給出關系特性，為系統優化設計提供依據。
  7. It has been deduced that the search direction remains the same but that the step length decreases in optimizing the improved cost function with the conjugate gradient algorithm from the gradient of the cost function that the fir filter apporaches the contrary point spread function ( psf ) more, and that the estimated image is closer to the original one

    從代價函數的梯度入手推導出共軛梯度演算法，其搜索方向保持不變而搜索步長變小，使濾波系數更加退近於點擴展函數逆運算元，從而使估計圖像與原始圖像更加接近。
  8. In other words, this value sets a limit on how much a real detection may differ from the assumed psf

    意思是，對于不同的模擬點擴展函數究竟什麼的目標才能被判斷為真實目標，本值提供了一個限制值。
  9. Psf - fit rms : the maximum rms for the difference between the model psf and the actually fitted profile

    點擴展函數的適合均方根：對于模擬點擴展函數與真實的適合的剖面圖之間的不同，軟體所使用的均方根的最大值。
  10. Choose a size large enough that the peak of the psf of the stars will be within the aperture, but small enough to resolve close pairs of stars

    設置足夠大的值，從而可以使恆星的點擴展函數范圍在此半徑之內，單也要小到足以區分密近雙星。
  11. Because of the equivalence of spotlight sar and rotating target imaging, the impsar pro jection reconstruction theory can be successfully used in spotlight impsar

    本文利用點擴展函數推導了旋轉目標成像在360和小角度時的解析度解析表示。
  12. Different from the other kinds of uwb signal, the radiation and picking up of the impulse signal has a very special property, time and space coupling

    結果表明impsarwb - p演算法方位解析度與利用點擴展函數（ psf ）的分析結果基本一致，這也從另一方面證明了wb - p演算法的有效性。
  13. Some different specific arithmetic were presented in recent 20 yrs. but all these arithmetic are applicable to point spread function which the parameters are known

    目前，對于不同原因造成的圖像變質的復原有了深入的研究，到現在已經提出了不同的具體演算法，但這些方法適用於點擴展函數並已知其參數的情況。
  14. When the bar code is of higher density, adjacent edges interact each other due to the influence of the point spread function of image collection system, therefore, this kind of method becomes invalid

    當條碼密度較大時，受光學系統點擴展函數的影響，邊緣相互干擾，這種技術不再適用。本文研究了高密度二維條碼的識別技術。
  15. This paper analyses deterioration model of bar code signals after the point spread function convolution, and presents two kinds of recognition algorithm in correspondence to different bluring degrees of bar code signal : one based on midpoints detection and the other based on waveform analysis

    分析了條碼信號經過點擴展函數卷積后的降質模型。針對條碼信號模糊程度的不同，提出兩種識別方法：基於中點檢測的條碼識別方法和基於波形分析的條碼識別方法。
  16. The theoretical results showed that point spread function ’ s distribution and the stray light mainly influenced the space resolving power and the measurement precision of the temperature measurement system, so we supposed some methods, which can improve the space resolving power, and the results proved the space resolution improved from 37 m to 16 m. 2. having made the space resolution come to 16 m, in order to improve the space resolving power more, we used image reconstruction method to reconstruct the

    利用這兩種方法，可以將測得的溫度場分佈中被點擴展函數卷積鈍化掉的部分復原回來，實驗測得微小面元溫度分佈在復原后溫度最高值高於復原前最高值，且分佈曲線變窄，較好地提高了系統的空間分辨能力，最終得到真實溫度分佈的最佳估計。
  17. The purpose of this work is to improve the space resolving power of the temperature measurement system for small laser - processed region. the main conclusions and contributions are as follows : 1. after expatiating upon the principle of radiation thermometry, we mainly discuss the effects on the space resolving power and the measurement precision of the real - time temperature measurement system by some factors

    本文的工作就是圍繞輻射測溫系統空間分辨能力的提高技術展開的，主要的研究結果和創新之處如下: 1 .在闡述不接觸測溫原理的基礎上，討論了影響空間分辨能力及測溫準確性的兩種因素? ?強度點擴展函數有效分佈、進入系統中的雜散光。
  18. When awg regarded as space unchanged linear system, an analytical solution of out - waveguide field is obtained by using the impulse response function. the crosstalk transformation on account of apertometer and waveguide spacing is also obtained by numerical calculation

    本文還將awg視為空間不變線性系統，使用點擴展函數的方法，求出awg系統輸出分佈的解析式，通過數值計算得到串擾與數值孔徑及其波導間距的關系。
  19. Based on maximum entropy algorithm, analyzing the blurring mechanism with the aberration of point spread function of imaging system, an effective restoration algorithm for blurred image with mist is proposed in this paper

    文章基於最大熵演算法，分析了成像系統點擴展函數畸變導致圖像模糊的機理，提出了一種有效的薄霧模糊圖像的恢復演算法。
  20. Bonavito ' s algorithm is verified to be specially suitable to restore complicated images in a normal pc because of its good performance and short processing time, and so is zhuang ' s algorithm which is extended here for coping with the cases of low noise level and sparse data

    本文對微分方程演算法進行了推廣，使之可以處理低噪聲及殘損圖像，還研究了恢復實際圖像時點擴展函數和噪聲參數的估計問題並提出了解決辦法，並對由於邊界截斷而導致的gibbs效應的常規處理方法做了改進。
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