TY - GEN
T1 - Under-sampling trajectory design for compressed sensing MRI
AU - Liu, Duan-Duan
AU - Liang, Dong
AU - Liu, Xin
AU - Zhang, Yuan-Ting
PY - 2012/8
Y1 - 2012/8
N2 - The under-sampling trajectory design plays a key role in compressed sensing MRI. The traditional design scheme using probability density function (PDF) is based up observation on energy distribution in k-space rather than systematic optimization, which results in non-deterministic trajectory even with a fixed PDF. Guidance-based method like Bayesian inference scheme is always bothered with high computational complexity on entropy. In this paper, we study how to adaptively design an under-sampling trajectory in the context of CS with systematic optimization and small complexity. Simulation results conducted on images from different slices and dynamic sequence demonstrate the effectiveness of the proposed method by comparing the designed trajectory with those by traditional method. © 2012 IEEE.
AB - The under-sampling trajectory design plays a key role in compressed sensing MRI. The traditional design scheme using probability density function (PDF) is based up observation on energy distribution in k-space rather than systematic optimization, which results in non-deterministic trajectory even with a fixed PDF. Guidance-based method like Bayesian inference scheme is always bothered with high computational complexity on entropy. In this paper, we study how to adaptively design an under-sampling trajectory in the context of CS with systematic optimization and small complexity. Simulation results conducted on images from different slices and dynamic sequence demonstrate the effectiveness of the proposed method by comparing the designed trajectory with those by traditional method. © 2012 IEEE.
UR - http://www.scopus.com/inward/record.url?scp=84870802268&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-84870802268&origin=recordpage
U2 - 10.1109/EMBC.2012.6345874
DO - 10.1109/EMBC.2012.6345874
M3 - RGC 32 - Refereed conference paper (with host publication)
C2 - 23365835
SN - 9781424441198
T3 - IEEE Engineering in Medicine and Biology Society Conference Proceedings
SP - 73
EP - 76
BT - 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2012
T2 - 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2012)
Y2 - 28 August 2012 through 1 September 2012
ER -