- 向后投射算法
- algorithm: n. 【數(shù)學(xué)】算法；規(guī)則系統(tǒng)；演段。
- backprojection: 反向投射
- backprojection operator: 后投影算子
- simultaneous backprojection: 聯(lián)立反向投影
- the algorithm: 算法
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backprojection algorithm中文什么意思
- 向后投射算法
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例句與用法
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- The method uses the properties of wavelet to reconstruct a local region of the cross section of a body , using almost completely local data , therefore reduces the amount of exposure and computations in reconstruction , while has the same quality as filtered backprojection algorithm
利用小波的特性，該算法僅使用幾乎是完全局部的投影數(shù)據(jù)去重建身體剖面上的某個局部區(qū)域，從而大大降低了x射線的輻射劑量和算法的運(yùn)行時間，同時還具有和傳統(tǒng)的濾波反投影法基本相同的圖像重建質(zhì)量。 - This thesis developed an algorithm to reconstruct the wavelet coefficients of an image from the radon transform data . this algorithm is similar to the conventional filtered backprojection algorithm , except that the filters are now angle dependent , and the backprojection gives us the wavelet coefficients of the reconstruction , which are then used to synthesize the reconstruction
該算法與傳統(tǒng)的濾波反投影法相似，不同的地方在于，算法中用到的濾波器是與x射線的照射角度相關(guān)聯(lián)的，而且反投影后得到的是待建圖像的小波分解系數(shù)，這些系數(shù)再經(jīng)過逆小波變換就得到了最終的重建圖像。 - The concept , advantages and history of bistatic isar are introduced first in this paper , then 2 - d turntable imaging of monostatic isar the special example of bistatic isar is studied . on the basis of monostatic isar four imaging algorithms are analyzed , including fft algorithm , filtered backprojection algorithm , spectrum extrapolation algorithm and esprit algorithm , and compared in the small and big angel of imaging . on the basis of monostatic imaging the 2 - d turntable imaging principle of bistatic isar is studied ,
本文首先闡述了雙站逆合成孔徑雷達(dá)的概念、優(yōu)點和發(fā)展歷程,然后研究了雙站逆合成孔徑雷達(dá)的特例? ?單站逆合成孔徑雷達(dá)對轉(zhuǎn)臺目標(biāo)的二維成像算法,并在此基礎(chǔ)上分析了四種主要的轉(zhuǎn)臺成像算法, fft算法、濾波逆投影算法、譜外推算法和esprit算法,并對以上各種算法分別在小角度和大角度下的成像性能進(jìn)行了比較。 - In this paper , firstly , we studied the newly working in the field of the application of wavelets transform used - in the computer tomography in two - dimesion , and mainly focused in the field of filter - backprojection algorithm . we analized the application of one - demision wavelets transform and two - demision wavlets transform
本文首先對小波理論在二維圖像重建應(yīng)用的最新研究進(jìn)行分析，著重研究了了小波理論在濾波反投影算法中的具體算法，分別從一維小波變換和二維小波變換進(jìn)行了探討。