Title :
Extending MC-SURE to denoise sensor data streams
Author :
Ndoye, Mandoye ; Kamath, C.
Author_Institution :
Lawrence Livermore Nat. Lab., Livermore, CA, USA
Abstract :
We propose a method to adaptively denoise sensor data streams corrupted by noise that can be approximated as additive white Gaussian. This on-line filtering method is based on the Monte-Carlo Stein´s Unbiased Risk Estimate (MC-SURE) algorithm, which enables a blind optimization of the denoising parameters for a wide class of filters. We first identify the challenges that arise as the MC-SURE algorithm is adapted to on-line data processing. We then propose a framework to address these challenges and demonstrate the application of the algorithm using real-world datasets.
Keywords :
AWGN; Monte Carlo methods; optimisation; sensor fusion; signal denoising; MC-SURE; Monte-Carlo Stein unbiased risk estimate; additive white Gaussian noise; blind optimization; online filtering; sensor data stream denoising;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2012 Conference Record of the Forty Sixth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4673-5050-1
DOI :
10.1109/ACSSC.2012.6489120