Split-spectrum processing: analysis of polarity threshold algorithm for improvement of signal-to-noise ratio and detectability in ultrasonic signals
- 1 January 1989
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
- Vol. 36 (1) , 101-108
- https://doi.org/10.1109/58.16976
Abstract
A polarity thresholding algorithm that has recently been developed for split-spectrum processing for ultrasonic coherent noise reduction is theoretically analyzed to evaluate its performance. The probability density function (PDF) of the output of the algorithm is derived and used to calculate the theoretical signal-to-noise ratio (SNR) enhancement and the receiver operating characteristics. The performance limits of the algorithm are also established. Some experimental results of SNR enhancement obtained with the polarity thresholding algorithm are presented.<>Keywords
This publication has 20 references indexed in Scilit:
- Split spectrum processing: optimizing the processing parameters using minimizationUltrasonics, 1987
- Two signal processing techniques for the enhancement of the flaw-to-grain echo ratioUltrasonics, 1987
- Speckle Reduction in Ultrasound B-Scans Using Weighted Averaging in Spatial CompoundingIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1986
- Analysis and Comparison of Some Frequency Compounding Algorithms for the Reduction of Ultrasonic ClutterIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 1986
- Adaptive filtering for reduction of speckle in ultrasonic pulse-echo imagesUltrasonics, 1986
- Speckle Reduction in Pulse-Echo Images by Using Phase Insensitive Summation and Multiplicative TechniquesPublished by Springer Nature ,1985
- The improvement and quantitative assessment of B-mode images produced by an annular array/cone hybridUltrasonic Imaging, 1983
- Phase-insensitive pulse-echo imagingUltrasonic Imaging, 1982
- Flaw-to-grain echo enhancement by split-spectrum processingUltrasonics, 1982
- Processing of Ultrasound Images to Reduce SpecklePublished by Institute of Electrical and Electronics Engineers (IEEE) ,1982