您要查找的是不是:
- At last, this dissertation discusses how OSEM (Ordered Subsets Expectation Maximization) can be applied in 3D reconstruction suitably. 6.;讨论了利用OSEM(Ordered Subsets Expectation Maximization)算法进行物体的三维重建。
- The other is to substitute Lucy iteration on the ordered subsets of observed data for Lucy iteration on all data in the direct demodulation imaging method. 二是将直接解调成像方法中lucy迭代改为观测数据按一定方式分组排序的lucy迭代。
- In order to solve this problem,for three dimensional cone-beam CT,a penalty SART is researched,at the same time,this means combined with ordered subsets is also researched. 为了解决这一问题,针对三维锥束CT情况,研究了一种增加惩罚项的联合代数迭代算法,同时研究了该算法与有序子集结合的方法。
- In order to fill the missing cone caused by the limited-angle chromotomographicimages, we designed the ordered subset expectation maximization algorithm(OSEM). 论文深入分析了有限投影角所带来的信息丢失锥体问题,并为了更好地克服有限投影角问题,提出了空域内的序列子集期望最大算法,并通过大量的计算机仿真实验,验证了序列于集期望最大算法具有鲁棒、快速收敛的特点,并能够很好地克服有限投影角存在的病态问题。
- On the imaging reconstruction of DHC, new algorithms using iterative reconstruction that based on the ordered subsets estimation maximization(COSEM) has been developed for coincidence imaging that improved the effect of imaging. 由于双探头符合线路在图像处理方面采用了符合探测的预先分组最大期望值图像重建(COSEM)方法(迭代重建法)代替了常用的滤波反投影法(FBP),使图像效果有了明显改善。
- Because of the introduction of the Ordered Subsets,our proposed method enhances the speed effectively,and keeps the high quality image and perfect spatial resolution in the low-dose CT reconstructi... 同时有序子集的引入,使得新算法较经典的惩罚加权最小二乘算法在速度上得到很大提高,低剂量CT的重建图像仍可保持较佳的图像质量和较高的空间分辨率。
- priori distributiom ordered subset 有序子集
- In order not to be late, she cut across the fields. 为了不迟到,她抄近路穿过田野。
- We started early in order to arrive before dark. 为了在天黑前到达,我们很早就动身了。
- Keywords OSEM;PET;image;variance;order subset;iterative; 图像;影响;有序子集;迭代;
- He ordered the troops to limber up and move out. 他命令部队把炮装上前车开出去。
- The courts ordered the seizure of all her property. 法院下令查封她所有的财产。
- The captain ordered two flags to be placed fore and aft. 船长吩咐在船头和船尾各挂一面旗子。
- The soldiers were ordered to present arms. 士兵们奉命举枪致敬。
- The petition was ordered to lie on the table. 该请愿书奉命暂搁一边,以后讨论。
- She ordered a hamburger and French fries. 她叫了一客汉堡包和炸薯条。
- The sentry was ordered to shoot on sight. 哨兵奉命一发现目标就射击。
- I ordered a wreath from the florist. 我从花店定购了一个花冠。
- Can you cash this postal order for me now? 你现在能帮我兑现这张邮政汇票吗?
- Give me an order of chicken curry. 给我来一份咖喱鸡。