x
uploads/cons.jpg

convolve vi.,vt.卷繞,纏繞。

convolvulus

Sequentially , the author discussed the technologies of medical image 3d visualization according to the clinical applications . with the development of computer , 3d visualization and computer graphics , the 3d visualization of medical images has progressed from fourier transform and convolve inverse projection to mpr ( multi - planar reformation , mpr ) and mtp ( maximum intensity projection , mtp ) , nowadays , the real 3d reconstruction method , surface and volume rendering has risen . the image registering , image segmentation , pixel data set construction and 3d special interpolation are the key technologies in medical images 3d reconstruction 隨著計算機技術、三維可視化理論和計算機圖形學的發展,醫學圖像的三維可視化技術也從傅立葉變換、卷積反投影等基本圖像處理算法,發展到真正的三維重建算法:面繪制和體繪制;醫學圖像的三維可視化技術的應用也從三維醫學成像發展到虛擬內窺鏡,以及今天的虛擬可視化人體研究;而圖像的配準、圖像分割、體數據集的構建、三維空間插值則是醫學圖像三維可視化實現過程中的關鍵技術環節。

On the basis of remote sensing technique ' s good characteristic with large - area , multi - time , multi - photograph variety , manifold abundant spectral information and high ground resolution , the fault tectonics frame , river geomorphy ( such as terrace , floodplain , shoal , etc ) and suspended load , etc . were explained after analyzed the fault tectonics , river geomorphy , characteristic in the tm image by gray bar statistics , primary component analyses , tm741 image integration , line convolve enhancement and model recognition etc . especially 9 piece of fault tectonics were explained in this thesis , in succession , the impacts of the factors severally were analyzed 遙感技術具有大范圍、多時相、多片種、多層次、含有豐富的光譜信息及具有較高的地面分辨率的特點。本文利用該技術,運用灰階統計特征分析和主成分分析、 tm741多波段融合、線性卷積增強、模型提取等一系列遙感解譯分析方法,分析了斷裂構造、河流地貌(階地、漫灘、沙洲)及懸浮物等在tm遙感圖象上的影像特征,解譯出了安徽南部斷裂構造格架、河流地貌和懸浮物的分布,并新解譯出了9條近東西向的斷裂。

On the basis of investigation and research about the technology of reconstruction for ict image up - to - date , this paper is devoted to develop an algorithm for image reconstruction based on wavelet theory . in this paper , time - frequency distribution for spatially varying filter was used to construct convolve - kernel by dwt , to modify convolve - back - projection algorithm 本文在國內外有關ct圖像重建的研究狀況基礎上,根據小波分析理論,利用小波變換在時頻空間的可變性,用dwt變換構造卷積核,對卷積反投影算法做了改進。

For the first time , on the view of algorithm and experimental system , the author analyze all the factors influcing the diagnose accuracy . on the basis of these analyses , “ window “ and convolving function with the best accuracy are selected , at the same time , the formulas of errors are deduced 在理論分析基礎上,選擇了具有最佳測量精度的窗函數和卷積函數,并對算法進行了改進,提高了計算精度;對實驗系統各部分對測量精度的影響也進行了定量分析。

That is , vibration caused by the first part of the command signal is canceled by vibration caused by the second part of the command . input shaping is implemented by convolving a sequence of impulses , an input shaper , with any desired command 輸入成型通過把參考輸入信號和一系列脈沖進行卷積,得到成型輸入信號,而成型輸入信號作用于控制對象,其中這脈沖序列就是輸入成型器。

It has important value in military and civil . conventional algorithms for synthetic aperture radar uses the matched filter and convolves the data with a reference phase signal which changes with range 合成孔徑雷達( sar )是二戰后發展起來的一種新的雷達技術,在軍事和民用方面都有重要的應用價值。

This lab consists of some tutorial files that will show you how to use matlab ? to view brain images and convolve with a hemodynamic response function ( hrf ) 這個實驗中包含一些使用指引,告訴你如何用matlab來觀看腦影像,并跟血液動態反應函數做疊積運算。