clc;
clear?all;
close?all;
N?=?256;
SOD?=?44;%源到旋轉(zhuǎn)中心的距離
SDD?=?2?*?SOD;%源到探測器中心的距離
vitual_detector_length?=?2;%虛擬探測器長度
detector_length?=?vitual_detector_length?*?SDD?/?SOD;
theta_num?=?360;%旋轉(zhuǎn)角度數(shù)
detector_channel_size?=?detector_length?/?N;%探測器的單位長度
P?=?zeros（N?N?theta_num）;%存放投影數(shù)據(jù)
%%===================定義頭模型參數(shù)=====================%%
%?xe?????ye?????ze?????ae?????be?????ce?????phi????gamma????theta?????rho
shep?=?[
??0??????0??????0??0.6900??0.9200?0.8100????0???????0????????0?????1.0000
??0??-0.0184????0??0.6624??0.8740?0.7800????0???????0????????0????-0.8000
??0.2200?0??????0??0.1100??0.3100?0.2200??-18.0000??0?????10.0000?-0.2000
?-0.2200?0??????0??0.1600??0.4100?0.2800???18.0000??0?????10.0000?-0.2000
??0??0.3500?-0.1500?0.2100?0.2500?0.4100????0???????0????????0?????0.1000
??0??0.1000?0.2500?0.0460??0.0460?0.0500????0???????0????????0?????0.1000
??0?-0.1000?0.2500?0.0460??0.0460?0.0500????0???????0????????0?????0.1000
-0.0800?-0.6050?0??0.0460??0.0230?0.0500??

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2019??2018-05-13?21:45??head_phantom.m

?????文件???????3123??2018-05-13?21:31??medfunc3DProjectHeadModel.m

-----------?---------??----------?-----??----

?????????????????5142????????????????????2