目的：研究立体定向放射治疗肺癌中呼吸运动频率与图像扫描时间对靶体积定位成像结果的影响。
Objective: to study the effects of respiratory movement frequency and scanning time on the image results in the treatment of lung cancer by stereotactic radiotherapy.
系统中融合了基于区域的立体匹配原理，检出的特征定位准确。
The principles of area based matching, epipolar constraint, edge strength and orientation constraints were introduced into the corresponding process.
目的：本文主要介绍SPECT脑显像的一种立体定位方法。
Purpose:This paper mainly introduced a stereotactic localization method for brain SPECT imaging.
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