Non-rigid summing of gated PET via optical flow
- 24 December 2002
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 2 (10823654) , 1339-1342
- https://doi.org/10.1109/nssmic.1996.591692
Abstract
A method for summing together datasets from gated cardiac PET acquisitions is described. Optical flow techniques are used to accurately model non-rigid motion present during the cardiac cycle so that a one-to-one mapping is found between each voxel of two gated volumes. Using this mapping, image summing can take place, producing a composite dataset with improved statistics and reduced motion-induced blur. Results using a data from a gated cardiac study on a dog are presented.Keywords
This publication has 8 references indexed in Scilit:
- Acquisition and automated 3-D segmentation of respiratory/cardiac-gated PET transmission imagesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Calculation of 3D internal displacement fields from 3D X-ray computer tomographic imagesProceedings of the Royal Society of London. Series A: Mathematical and Physical Sciences, 1995
- Determining cardiac velocity fields and intraventricular pressure distribution from a sequence of ultrafast CT cardiac imagesIEEE Transactions on Medical Imaging, 1994
- Three-dimensional motion and deformation of the heart wall: estimation with spatial modulation of magnetization--a model-based approach.Radiology, 1992
- Computation of 3-D velocity fields from 3-D cine CT images of a human heartIEEE Transactions on Medical Imaging, 1991
- The existence of geometrical density-image transformations corresponding to object motionComputer Vision, Graphics, and Image Processing, 1988
- Determining optical flowArtificial Intelligence, 1981
- Kinematics of the Beating HeartIEEE Transactions on Biomedical Engineering, 1980