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Vol. 157, Issue 10, October 2013, pp. 198-205

 

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Online Multiscale Extraction of Signals by Using Wavelet Thresholding and Moving Window
 
Qibing Jin, * Sajid Khursheed

Beijing University of Chemical Technology No. 15, Bei San Huan East Road, Chaoyang Dist. Beijing, 100029, P. R. China
E-mail: sajid777@hotmail.com

 

Received: 11 July 2013   /Accepted: 25 September 2013   /Published: 31 October 2013

Digital Sensors and Sensor Sysstems

 

Abstract: By using the online multiscale extraction of signals and wavelet thresholding into a moving window of dyadic length, we can remove unpleasant or noise mistakes from the data. Genuine images are frequently corrupted by noise from various sources. It has been confirmed to have a better edge-preserving quality than linear filters in certain applications. Data extraction by univariate extraction is a well-known technique for processing in a correct simulation. Generally, linear filters are mainly smart in favor of on-line extraction of signals; however, those are single-scale in support of restoring information holding qualities in addition to noise with the reason of related choice in time and occurrence. Comparatively, nonlinear extraction methods, such as median-hybrid filters and wavelet segmentation are multiscale; however they may not be applied online, so in this paper, we have presented a new approach for online nonlinear extraction of signals by using moving window based on wavelet segmentation. Demonstrated figures show the results of online multiscale extraction of signals.

 

Keywords: Data extraction, Linear and non-linear extraction, Online multiscale extraction.

 

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