在目前大脑认知功能的研究中,人们常常采用功能性磁共振(fMRI)技术.相关分析是常见的用于检测fMRI数据的方法,而其检测的准确度有一定局限性.在典型相关分析(CCA)基础上将时域相关系数与空域相关系数有机结合,并得到新的相关系数进行闽值分割,进而对fMRI数据进行提取·经过仿真数据与实际fMRI数据的应用分析,证明了本算法的有效性.
In the analysis of cognition of human brain , the fMRI is often used. Corelation is a common method in fMRI data detecting, but its ability should be improved. Based on the Canonical Correlation Analysis ( CCA), the temporal correlation and spatial correlation are used together to detect the activated area in the fMRI data. By the application of the method in simulation data and fMRI data, it shows that this method is effective in the detecting.