離焦像 的英文怎麼說
中文拼音 [líjiāoxiàng]
離焦像
英文
defocused image-
Two detectors are used both in conventional differential astigmatic device and the device given in this paper
與差動像散離焦檢測原理相同的是，二者都是採用雙探測器進行測量。The size of images formed by concave mirrors depends on how far the objects are located from the mirror foci
利用凹鏡所看到的鏡像，則會隨物體與鏡面焦點的距離而變化。If the objective lens is closer to the compact disk than the focal length of the object lens, then the cylindrical lens creates an elliptical image on the photodetector array
如果物鏡與光盤之間的距離短於物鏡的焦距，柱面透鏡就會使在光電探測器陣列上的成像變成橢圓影像。If the objective lens is further away from the compact disk than the focal length of the object lens, then the cylindrical lens again creates an elliptical image on the photodetector array
如果物鏡與光盤之間的距離長於物鏡的焦距，柱面透鏡也會使在光電探測器陣列上的成像變成橢圓影像。This paper analyses emphatically the position error and manufacture error of critical - angle prism the position error and aberration of object lens the position error and manufacture error of the polarization beam splitter the position error of the detector, and come out their relations
著重分析了臨界角棱鏡位置誤差與製造誤差；物鏡的位置誤差與像差；偏振分束棱鏡的位置誤差與製造誤差；探測器的位置誤差等對離焦誤差信號的影響，並給出了理論曲線。Electronographic star images appear soft and out of focus.
電子照相得到的星象看起來模糊，似乎是離焦的像。In the method dfd ( depth from defocus ), feasibilities of restoring images from defocus images and estimating the focused position are discussed and confirmed
離焦深度法估計離焦距離或者進行圖像恢復的依據是成像系統的點擴散函數及它所產生的模糊圓。Firstly, basic theories and methods of autofocus based on image processing are studied in detail
首先，本文研究了基於數字圖像處理自動對焦的基本理論與方法? ?對焦深度法和離焦深度法。In this paper the positions of images reconstructed by illuminated plane waves of fraunhofer defocused holographic memory system are theoretically described and discussed
摘要對用平面波讀出夫瑯和費離焦全息存儲系統再現像的位置進行理論分析與討論。Abstract : in this paper the positions of images reconstructed by illuminated plane waves of fraunhofer defocused holographic memory system are theoretically described and discussed
文摘:對用平面波讀出夫瑯和費離焦全息存儲系統再現像的位置進行理論分析與討論The experiment results show that there are optimal defocus distance and exposure for the given system and recording material, and to obtain the best snr different reference - to - object beam ratios are also needed for black - white digital images of different space frequencies
實驗結果表明，對于給定的系統及記錄介質存在一定的最佳離焦量和曝光量，而對于不同空間頻率的黑白二值條紋圖像還需要採用不同參?物光比以最終獲得最佳的信噪比。Our method has some advantages of rapid reaction, high accuracy and good performance for the objects with edge features. secondly, focus measures and focus algorithms are studied
本方法具有離焦深度法的速度優勢，同時保持對焦深度法的高精度優點，對于具有直邊特徵的成像目標具有很好的性能。Furthermore, a new dfd method was put forward. the method estimated the focused field through analyzing three images at different lens positions and then found best imaging position within the field in small steps
同時，本文提出一種逐漸逼近的離焦深度法，先通過少量對焦位置不同的圖像計算出近似準焦位置，再用小步長在其附近搜索最佳位置。2. not only made a details description of distort - image recovery methods including out - of - focus, motion - image and geometrical - transformation, but also realize the recovery function under the environment of visual c + + and matalb. this application is also an innovation in the image processing technology
由於失真的原因多種多樣，本論文將詳細地介紹離焦、運動這兩種主要失真圖像的復原方法，並且將利用vc + +語言和matlab語言結合起來實現這一功能。Single mode optical fiber laser confocal scanning microscopy is a new technology in microstructure studying. the speciality of the system is limiting the out - of - focus light reflected from out - of - focus plane in object to restrict the blur of image. therefore, the plane resolution and axial resolution of the system could be improved to sub - micron grade
單模光纖激光共焦掃描顯微成像系統是研究微觀結構的一種新技術，其本質是抑制目標物體離焦面所反射的光線進入系統，從而抑制這些離焦光線造成像點彌散斑增大的影響，使系統的橫向與軸向解析度得到大幅度的提高，能實現亞微米級的層析。Because of the changes of the surroundings, the camera ' s focusing plane will offset in different degree. in order to ensure the imaging quality of the space camera in complicated environment, the camera ' s focusing plane needs be modulated. so it is necessary to devise a system to adjust the place of the space camera ' s focusing plane. in this paper, auto - focusing mechanism the space camera been reach on
由於環境條件的變化，相機的焦面將產生不同程度的偏移，即離焦，為保證相機在比較復雜的環境條件下的成像質量，需對相機變化的像面加以校正，因此設計一套調整空間相機像面位置的系統，即調焦系統是十分必要的。The thesis is divide ^ into several chapters. ( 1 ) : firstly, the paper briefs the principles and research status quo of auto - focus in digital imaging systems, introduces a dfd ( depth form defocus ) auto - focus method based on frequency analysis
本文包含了以下一些內容： （ 1 ） ：首先對成像原理進行了簡要的介紹和說明，接著分析了自動對焦技術的原理和作用背景，引入一種基於頻域分析的離焦深度自動對焦方法。In this paper, the differential astigmatic detection method for defocus measurement with one - way defocused detector is developed from the conventional differential astigmatic detection
本文在傳統差動像散檢測方法基礎上，給出一種基於單向離焦的差動像散檢測方法。Finally, the automatic opto - electronical hybrid joint transform correlator was set up, which produced a quite good recognition result for both binarized image and complicated grayscale - level images. this paper also discussed the effects of lctv on jps
分析了液晶電視對聯合功率譜的影響，提出了低通濾波和適量離焦的解決方案，分別對二值圖像和復雜的灰度圖像進行實驗，得到了很好的識別結果。Finally a novel algorithm flow is made to achieve 3d focusing with zoom microscope. for low enlargement images, global - coarse orientation is realized with auto - thresholding, corrosion - inflation operation and connected components labeling. and for large enlargement images, local - precise orientation is achieved by multiresolution wavelets segmentation on focus measure technique, which use the phenomena that images blur when out - of - focus
對于低放大倍數下的全局圖像，主要利用形態學中的腐蝕膨脹操作、自動閾值分割、區域標記等技術完成了鍵合目標中心位置的粗定位;而對于高放大倍數下的局部圖像，根據其半離焦的特徵利用基於小波高頻能量的多尺度顯微圖像分割方法實現了精定位。分享友人