TY - GEN
T1 - An improved analytical reconstruction for gated cardiac SPECT based on intra-frame similarity
AU - Fan, Yi
AU - Lu, Hongbing
AU - Hao, Chongyang
AU - Liang, Zhengrong
PY - 2007
Y1 - 2007
N2 - In a method we proposed before, Karhune-Loève (KL) transform was used to de-correlate the inter-frame correlation before they are reconstructed. The drawback of this method is that the covariance matrix is estimated based on the assumption that all pixels along the time direction obey the similar time function, while it is not always comply with the situation. In this paper, we propose a potential refinement method for spatio-temporal reconstruction for gated cardiac SPECT. The gated cardiac SPECT frames are grouped into several groups according to their intra-frame similarity. Then the different KL transform strategies are applied to these groups. Experimental computer simulation results show that the approach may obtain better performance than the previous one.
AB - In a method we proposed before, Karhune-Loève (KL) transform was used to de-correlate the inter-frame correlation before they are reconstructed. The drawback of this method is that the covariance matrix is estimated based on the assumption that all pixels along the time direction obey the similar time function, while it is not always comply with the situation. In this paper, we propose a potential refinement method for spatio-temporal reconstruction for gated cardiac SPECT. The gated cardiac SPECT frames are grouped into several groups according to their intra-frame similarity. Then the different KL transform strategies are applied to these groups. Experimental computer simulation results show that the approach may obtain better performance than the previous one.
UR - https://www.scopus.com/pages/publications/35248853907
U2 - 10.1109/ICIEA.2007.4318416
DO - 10.1109/ICIEA.2007.4318416
M3 - Conference contribution
AN - SCOPUS:35248853907
SN - 1424407370
SN - 9781424407378
T3 - ICIEA 2007: 2007 Second IEEE Conference on Industrial Electronics and Applications
SP - 283
EP - 287
BT - ICIEA 2007
T2 - 2007 2nd IEEE Conference on Industrial Electronics and Applications, ICIEA 2007
Y2 - 23 May 2007 through 25 May 2007
ER -