Artifact detection in encephalogram data using an event model
First Claim
1. A machine readable storage medium containing a program element for execution by a computing device for performing spike and artifact detection in encephalogram (EG) data, said program element, comprising:
- a) a spike detection module for processing EG data to detect spikes, each spike being a candidate having a likelihood of being related to a physiological event of interest;
b) an artifact detection module, said artifact detection module being operative for;
i) spikes detected by said spike detection module, computing respective models of events manifested by the respective spikes;
ii) use the computed models to determine which spikes among the spikes detected by said spike detection module are highly likely to be artifacts;
iii) filtering the spikes detected by said spike detection module on the basis of the computed models to produce filtered data; and
iv) outputting the filtered data.
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Abstract
A machine-readable storage medium containing a program element for execution by a computing device for performing spike and artifact detection in EG data. The program element comprises a spike detection module for processing EG data to detect spikes. Each spike is a candidate having a likelihood of being related to a physiological event of interest. The program element further comprises an artifact detection module. The artifact detection module is operative to compute respective models of events manifested by the respective spikes detected by the spike detection module, to use the computed models to determine which spikes among the spikes detected by the spike detection module have a high likelihood of being artifacts, to filter the spikes detected by the spike detection module on the basis of the computed models to produce filtered data and to output the filtered data.
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Citations
33 Claims
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1. A machine readable storage medium containing a program element for execution by a computing device for performing spike and artifact detection in encephalogram (EG) data, said program element, comprising:
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a) a spike detection module for processing EG data to detect spikes, each spike being a candidate having a likelihood of being related to a physiological event of interest;
b) an artifact detection module, said artifact detection module being operative for;
i) spikes detected by said spike detection module, computing respective models of events manifested by the respective spikes;
ii) use the computed models to determine which spikes among the spikes detected by said spike detection module are highly likely to be artifacts;
iii) filtering the spikes detected by said spike detection module on the basis of the computed models to produce filtered data; and
iv) outputting the filtered data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A machine readable storage medium containing a program element for execution by a computing device for performing artifact detection in EG data, said program element, comprising:
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a) an input for receiving data derided from an EG and representative of spikes, each spike being a candidate having a likelihood of being related to a physiological event of interest;
b) an artifact detection module, said artifact detection module receiving the data representative of spikes and being operative for;
i) computing respective models of events manifested by the respective spikes;
ii) use the computed models to determine which spikes among the spikes detected by said detection module are highly likely to be artifacts;
iii) outputting data allowing to distinguish in the data representative of spikes the spikes determined to highly likely be artifacts. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A method for performing artifact detection in EG data, comprising:
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a) receiving data derived from an EG and representative of spikes, each spike being a candidate having a likelihood of being related to a physiological event of interest;
i) computing, from the data derived from an EG, respective models of events manifested by the respective spikes;
ii) using the computed models to determine which spikes among the spikes detected by said detection module are likely to be artifacts;
iii) outputting data allowing to distinguish in the data representative of spikes the spikes determined to likely be artifacts.
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Specification