Unfortunately , up to now , there is no an efficient algorithm to deal with the iterative reconstruction algorithm , especially from fan - scanned projections 對于迭代重建,目前尚無很好地解決該問題的算法,特別是對扇束投影重建問題。
Reconstruction via iteration is used for fault data recovery in this thesis . iterative reconstruction is a process of sliding the measure to pcs along the direction of fault 本文采用了迭代重構(gòu)法進行數(shù)據(jù)恢復,迭代重構(gòu)就是沿著故障方向,逐步逼近主成分子空間的過程。
We performed crosswell tomography on a real crosswell seismic line from shengli oilfield by using simultaneous iterative reconstruction technique ( sirt ) based on shortest path tree ( spt ) curved ray tracing 摘要利用基于最短路徑樹彎曲射線追蹤的聯(lián)合迭代重建層析成像( sirt )技術(shù)進行井間地震層析成像,對勝利油田的一對井間實際資料進行了處理。
For this method , the matrix inversion and iterative reconstruction are selected based on the quantity and quality of data , and then the physical model and the actually measured data are processed by using this method 層析成像算法根據(jù)數(shù)據(jù)量大小、品質(zhì)來選擇矩陣反演法與迭代重建法,然后對物理模型、實測資料進行層析成像處理,結(jié)果獲得滿意的重建異常體圖像。
The paper focuses on the art ' s capability when it comes to reconstruction with incomplete and noisy projection data . iterative reconstruction method is an important kind of reconstruction methods , which has superior advantages when reconstructing images with incomplete and noisy projection data 迭代法是圖像重建算法中的一大重要類別,尤其是在處理投影數(shù)據(jù)不完全及噪聲干擾較為嚴重的情況下具有不可代替的優(yōu)勢。
The authors established an initial velocity model based on the first break time of the actual data , then realized the forward calculation with the improved shortest path ray tracing algorithm , and applied the improved constrained damped simultaneous iterative reconstruction technique ( cdsirt ) to solve large - scale and sparse equations for inversing the near - surface velocity field 根據(jù)實際地震數(shù)據(jù)的初至波時間建立初始速度模型;采用改進的最短路徑射線追蹤算法進行正演;利用改進的約束帶阻尼聯(lián)合迭代重建技術(shù)( cdsirt )求解大型、稀疏的方程組來反演近地表的速度場。
百科解釋
Iterative reconstruction refers to iterative algorithms used to reconstruct 2D and 3D images in certain imaging techniques.