Several methods of image post - processing are studied in the fifth chapter 第五章就圖象后處理的有關(guān)問題進行了研究。
Image post - processing 圖象后處理
Because speckle in the sar or polarimetric sar images badly affects the post - processing of sar images , speckle reduction become to the first step of sar images post - processing 由于在sar及極化sar圖像中存在著顯著的相干斑,這影響了sar圖像的后處理,因此相干斑的抑制成為sar圖像后處理的第一步。
After the experimental certification , the application of mathematical morphology for image post - processing enhanced the visibility and the accuracy of the segmentation results of wood surface defect images 經(jīng)實驗驗證,應(yīng)用數(shù)學形態(tài)學進行圖像后處理,增強了木材缺陷圖像分割結(jié)果的可視性和準確性。
The content mainly involved in the image pre - processing , which includes de - noise and registration on the live image sequence and the mask image , the digital subtraction arithmetic and the image post - processing , which includes the image quantization and enhancement 內(nèi)容主要涉及數(shù)字剪影中造影片序列和蒙片的預處理,包括降噪和配準,數(shù)字剪影算法研究以及數(shù)字剪影圖象序列的后處理,包括量化和增強共五個部分。
In view of the imperfection of the segmentation results of wood surface defect images , the methods of image post - processing based on mathematical morphology were proposed , including the use of mathematical morphology filling operation , morphology filter as well as morphology gradient edge detection and so on 針對木材表面缺陷圖像分割效果不完善的問題,提出基于數(shù)學形態(tài)學的圖像后處理方法,包括應(yīng)用數(shù)學形態(tài)學的填充操作、形態(tài)濾波以及形態(tài)梯度邊緣檢測等。
At the same time the author makes a deep research into the serial communication of the controlling signals of the sonar , the dynamic displaying of the image as well as the image post - processing and classification for the sake of sonar intelligentizing and the computer aided classification 本文以投入正樣機研制的獵雷聲吶為背景,在著力解決工程實際問題的同時,對聲吶設(shè)備中控制信號的串行通信、聲納圖像的動態(tài)顯示以及后置圖像處理與識別做了較為深入的研究。
It is widely used in both civil and military areas now . since sar and polarimetric sar is a coherent imaging system , its inherent speckle noise will produce important influence on the post - processing of sar images , such as target detection , classification and recognition , etc . so , speckle reduction becomes to the first step of sar images post - processing 由于sar和極化sar的相干成像特性,其固有的相干斑噪聲嚴重影響了后續(xù)目標檢測、分類和識別等應(yīng)用,因此相干斑的抑制成為sar和極化sar圖像后處理的第一步,這種噪聲的抑制方法一直是極化sar信號處理領(lǐng)域一個很值得探討的問題。
It is a advanced medical image post - processing system emerging only several years ago . since it is a non - invaded , non - touched means and non - hurt examination method , virtual endoscopy is widely used in diagnostic and teaching in anatomy recently . some key techniques and realizations of virtual endoscopy are systematically investigated in this thesis 虛擬內(nèi)窺鏡是近幾年出現(xiàn)的醫(yī)學圖像高級后處理系統(tǒng),由于它是一種非侵入型、無接觸式的零創(chuàng)傷醫(yī)療檢查手段,使得它在診斷醫(yī)學和解剖教學領(lǐng)域中的應(yīng)用越來越廣泛。
Because coherent speckle in the sar images badly affects the post - processin - g of sar images , which makes segmentation , classification and acquisition of an - other information in sar images complicated , speckle reduction become to the first step of sar images post - processing . the research content of this dissertation is reduction of specie noise 由于sar圖像中存在著顯著的相干斑噪聲,使sar圖像的分割,分類和其它信息的提取過程變得復雜,因此相干斑的抑制成為sar圖像后處理的第一步。本文的研究內(nèi)容就是sar圖像相干斑的抑制。