发明名称 |
System and method for iterative fourier side lobe reduction |
摘要 |
A method and system for generating images from projection data comprising: at least one processor for processing input data, the input data comprising positional data and image data, the image data comprising frequency data for a pre-determined number k frequencies the at least one processor operating to: a) set the frequency data to zero for a predetermined percentage of the k frequencies to form modified frequency data; b) form a preliminary image comprising an array of retained pixel values based upon first positional data and the modified frequency data; c) set the frequency data to zero for a predetermined percentage of the k frequencies to form modified frequency data; d) form a modified image comprising an array of pixels based upon the positional data and the modified frequency data; e) compare the retained array of pixel values to the pixel values of the modified image formed at step (d); f) retain the minimum pixel value at each pixel location to form an image comprising minimum pixel values; g) repeat steps (c) through (f) for L iterations each time retaining an array of pixel values; h) output the image of retained pixel values. |
申请公布号 |
US8665132(B2) |
申请公布日期 |
2014.03.04 |
申请号 |
US201113046250 |
申请日期 |
2011.03.11 |
申请人 |
RANNEY KENNETH I.;NGUYEN LAM HUY;SICHINA JEFFREY P.;THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
RANNEY KENNETH I.;NGUYEN LAM HUY;SICHINA JEFFREY P. |
分类号 |
G01S13/00 |
主分类号 |
G01S13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|