Patent ID: 8126902
Filing Date: 2012-02-28
Classification: G06T,G16H,Y10S

Abstract:
1. A method for registering sequences of data sets in a computer of an object having a rate of change represented by a period N of frequency f represented by N=1/f of the rate of change of the object wherein the frequency f corresponds to pulse rate, comprising: specifying a first sequence of data sets and a second sequence of data sets to the computer wherein the data sets in each sequence are recorded sequences of images or volume data sets of an object, where the object itself changes periodically over time at a frequency f corresponding to pulse rate such that the object itself moves according to a first period N determining the first period of frequency N assigning a measure of time to each data set in each sequence that is used to determine a temporal relationship of the data set to the other data sets in the respective sequence; comparing the first data set in the first sequence with the data sets in the second sequence and automatically determining a first data set from the second sequence corresponding to a first data set from the first sequence using registration parameters based on the status of the object that are independent of the measure of time to register the first mutually corresponding pair of data sets in the sequences; and determining for each of the other data sets in the first sequence the mutually corresponding data set from the second sequence based on the first mutually corresponding pair of data sets and the measures of time assigned to the data sets, wherein the temporal relationships of each sequence and periods of frequency N wherein the object changes with a first period according to the data sets in the first sequence and with a second period according to the data sets in the second sequence and the computer takes the periods in the sequences into account when determining which of the data sets in the second sequence correspond to the various data sets in the first sequence, and wherein the computer determines a first phase position for each data set in the first sequence relative to the first period in each case and that in each case and for each data set in the first sequence the computer either preferably determines from the second sequence a data set having a second phase position relative to the second period that corresponds at least in some respects, and defines said data set as the corresponding data set or determines two data sets from the second sequence that are immediately consecutive in time and have second phase positions which bisect the first phase position and by interpolation from the two data sets from the second sequence that are immediately consecutive in time determines an interpolated data set which it defines as the corresponding data set.