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. Author manuscript; available in PMC: 2015 Nov 7.
Published in final edited form as: Phys Med Biol. 2015 Oct 9;60(21):8275–8301. doi: 10.1088/0031-9155/60/21/8275

Fig. 8.

Fig. 8

A representative set of Gaussian basis functions used to reconstruct the gated cardiac-respiratory dynamic projection data. The beating of the heart was assumed to be a discrete process as was respiration. Note that the cardiac and respiratory motion are periodic, so all of the basis curves are symmetric.