Reliable and Efficient Approach of BOLD Signal with Dual Kalman Filtering
Joint Authors
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
By introducing the conflicting effects of dynamic changes in blood flow, volume, and blood oxygenation, Balloon model provides a biomechanical compelling interpretation of the BOLD signal.
In order to obtain optimal estimates for both the states and parameters involved in this model, a joint filtering (estimate) method has been widely used.
However, it is flawed in several aspects (i) Correlation or interaction between the states and parameters is incorporated despite its nonexistence in biophysical reality.
(ii) A joint representation for states and parameters necessarily means the large dimension of state space and will in turn lead to huge numerical cost in implementation.
Given this knowledge, a dual filtering approach is proposed and demonstrated in this paper as a highly competent alternative, which can not only provide more reliable estimates, but also in a more efficient way.
The two approaches in our discussion will be based on unscented Kalman filter, which has become the algorithm of choice in numerous nonlinear estimation and machine learning applications.
American Psychological Association (APA)
Liu, Cong& Hu, Zhenghui. 2012. Reliable and Efficient Approach of BOLD Signal with Dual Kalman Filtering. Computational and Mathematical Methods in Medicine،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-511733
Modern Language Association (MLA)
Liu, Cong& Hu, Zhenghui. Reliable and Efficient Approach of BOLD Signal with Dual Kalman Filtering. Computational and Mathematical Methods in Medicine No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-511733
American Medical Association (AMA)
Liu, Cong& Hu, Zhenghui. Reliable and Efficient Approach of BOLD Signal with Dual Kalman Filtering. Computational and Mathematical Methods in Medicine. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-511733
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511733