公开(公告)号：EP2609571B1

公开(公告)日：2013-12-04

申请号：EP11749523.4

申请日：2011-07-18

申请人： Koninklijke Philips N.V.

发明人： DWIVEDI, Shekhar ,  SONG, Steven Xiyun ,  BANDZAVA, Teimuraz ,  YE, Jinghan ,  MISRA, Satrajit Chandra

IPC分类号： G06T7/00

CPC分类号： A61B6/5288 ,  A61B5/0402 ,  A61B6/037 ,  A61B6/503 ,  A61B6/5264 ,  G06K9/46 ,  G06T7/254 ,  G06T11/005 ,  G06T2207/10108 ,  G06T2207/30048 ,  G06T2211/412

摘要： An apparatus comprises: an imaging system (10) configured to acquire emission data from a cyclically varying element; a monitoring instrument (20, 22) configured to measure the cyclical varying of the cyclically varying element; and an electronic device (40) configured to locate an image feature corresponding to the cyclically varying element in the acquired emission data based on correlation of time variation of the emission data with the cyclical varying of the cyclically varying element measured by the monitoring instrument. The located image feature may be verified by: thresholding a projection image generated from the emission data to generate a mask image; identifying in the mask image one of (i) a hollow circular feature, (ii) a hollow oval feature, (iii) a circular cavity feature, and (iv) an oval cavity feature; and verifying the located image feature based on whether the identifying operation is successful

摘要翻译： 一种设备包括：成像系统（10），被配置为从循环变化元素获取发射数据; 监测仪器（20,22），配置成测量所述循环变化元件的循环变化; 以及电子设备（40），其被配置为基于所述发射数据的时间变化与由所述监测仪器测量的所述周期性变化的元件的周期性变化的相关性来在所述获取的发射数据中定位与所述周期性变化的元件相对应的图像特征。 所定位的图像特征可以通过以下步骤来验证：对从发射数据生成的投影图像进行阈值化以生成掩模图像; （i）空心圆形特征，（ii）空心椭圆形特征，（iii）圆形空腔特征，和（iv）椭圆形空腔特征中的一个; 并且基于识别操作是否成功来验证所定位的图像特征