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Filters
Speckle Noise Reduction in Ultrasound Images for Improving the Metrological Evaluation of Biomedical Applications: An Overview
2020
IEEE Access
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In recent years, many studies have examined filters for eliminating or reducing speckle noise, which is inherent to ultrasound images, in order to improve the metrological evaluation of their biomedical ...
INDEX TERMS Diffusion filtering, image pre-processing, metrological evaluation, spatial filtering, speckle noise, ultrasound images, wavelet filtering. ...
CONCLUSION This paper presented an overview of speckle noise filtering methods implemented in US images for improving the accuracy of their results, which has an impact on legal metrology for healthcare ...
doi:10.1109/access.2020.2967178
fatcat:uw2oze6rkjg47gvr6ua6zlublq
An Overview of Advances in Signal Processing Techniques for Classical and Quantum Wideband Synthetic Apertures
[article]
2022
arXiv
pre-print
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The SAs may either use a mechanical positioner to move an antenna through space or deploy a distributed network of sensors. ...
Herein, we provide a brief overview of emerging signal processing trends in such spatially and spectrally wideband SA systems. ...
Official contribution of the U.S. government; not subject to copyright in the United States. ...
arXiv:2205.05602v1
fatcat:74vr5wq6zjcjdf7wtitpbbfquu
A Review on Development of a High Resolution Imaging System at 635 nm and 840 nm
2019
IJARCCE
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It provides the cross-sectional images of an sample in X & Y direction. It provides the depth as in millimeter range with the resolution in micrometer range. ...
This Optical Coherence Tomography (OCT) technique is a non-invasive technology used in medical as well as in non-medical applications. It is used to produce high resolution images. ...
Ultrahigh resolution of OCT system with image enhancement technique by speckle noise reduction W. ...
doi:10.17148/ijarcce.2019.8627
fatcat:rsvzapy5xrdd7breuz27hou2im
Supercontinuum radiation in fluorescence microscopy and biomedical imaging applications
2019
Journal of the Optical Society of America. B, Optical physics
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In this review, we provide a brief overview on the generation and properties of supercontinuum radiation for imaging applications. ...
to improve supercontinuum stability for certain applications. ...
The features offered by the compact pulsed SC laser make it an ideal source for a wide range of biophotonics applications in fluorescence microscopy and biomedical imaging. ...
doi:10.1364/josab.36.00a139
fatcat:vcwc4ovklzghxbtubvmkbspx5y
A transparency model and its applications for simulation of reflector arrays and sound transmission
2006
Journal of the Acoustical Society of America
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Speckle reduction of echographic image by transmitting ultrasonic waves of double peak spectrum. ...
The dynamic range of harmonic components higher than the third, however, is not enough for effective speckle reduction. ...
However, the glider provides a low-noise and low-speed platform, potentially improving the signal-to-noise ratio. ...
doi:10.1121/1.4786982
fatcat:uh2zucni3zaa5nnkivc5sh5tpq
Interferometry-Based Optoacoustic Tomography
[chapter]
2017
Photoacoustic Imaging and Spectroscopy
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stability for biomedical application. ...
The reduction of image acquisition time is thus an important hurdle that the optoacoustic-imaging community faces. ...
doi:10.1201/9781420059922-24
fatcat:ss7tbmq5yneivasoydboob7vdm
Optical coherence elastography – OCT at work in tissue biomechanics [Invited]
2017
Biomedical Optics Express
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Optical coherence elastography (OCE), as the use of OCT to perform elastography has come to be known, began in 1998, around ten years after the rest of the field of elastography - the use of imaging to ...
After a slow start, the maturation of OCT technology in the early to mid 2000s has underpinned a recent acceleration in the field. ...
Of course, interest in speckle metrology, and in efficient algorithms for speckle tracking outside of OCE, goes back a long way [20] , and was also an active field in the first half of the 2000s [19, ...
doi:10.1364/boe.8.001172
pmid:28271011
pmcid:PMC5330567
fatcat:m6ka7wrfobez7grwmuraid3nfi
A combined local and global motion estimation and compensation method for cardiac CT
2014
Medical Imaging 2014: Physics of Medical Imaging
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speckle in ultrasound images. ...
Thus, speckle reduction while preserving the tissue structure (e.g., edges and boundaries of lesions) is essential for ultrasound B-mode imaging. ...
Studies have shown that there is variation in the agreement between operators viewing the same tissue [1] suggesting that a complimentary technique for verification could improve the robustness of the ...
doi:10.1117/12.2043492
fatcat:fyzpc5m6jbh7fjohqpdmtzkhte
A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted-ray TFM
2013
2013 IEEE International Ultrasonics Symposium (IUS)
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Recent advances in the field of tissue engineering include the engineering of skin, cartilage, and bladder, all of which are relatively thin tissues that can rely on diffusion for the delivery of oxygen ...
These changes in collagen microstructure were produced using both ultrasound standing wave fields and traveling wave fields. ...
The authors acknowledge the ANR and DGA for their support under the project Metactif, grant ANR-11-ASTR-015. ...
doi:10.1109/ultsym.2013.0035
fatcat:th5znfh7y5bklfdbmhb4u6iq2i
Review of in-situ process monitoring and in-situ metrology for metal additive manufacturing
2016
Materials & design
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Developments in process control have allowed significant enhancement of AM techniques and marked improvements in surface roughness and material properties, along with a reduction in inter-build variation ...
Lack of assurance of quality with additively manufactured (AM) parts is a key technological barrier that prevents manufacturers from adopting AM technologies, especially for high-value applications where ...
The authors would also like to acknowledge the UK Research Centre in Non-Destructive Evaluation (RCNDE) (EPSRC grant EP/L022125/1), 'Insitu monitoring of component integrity during additive manufacturing ...
doi:10.1016/j.matdes.2016.01.099
fatcat:hm55gd3ssnccjdms5qmpnfvaoe
Chronicle. 59th Open Seminar on Acoustics Boszkowo, Poland, September 10–14, 2012
2012
Archives of Acoustics
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The Open Seminar on Acoustics (OSA) is an annual conference, the largest in the country which has been bringing Polish acousticians together for nearly sixty years. ...
The Scientific and Organizing Committees of 59th Open Seminar on Acoustics would like to present the abstracts of papers submitted for this conference. ...
biomedical applications. ...
doi:10.2478/v10168-012-0047-y
fatcat:5wzt63vlwjegvpz4ghskcfa27y
A unique way of sound production in the snapping shrimp (Alpheus heterochaelis)
2000
Journal of the Acoustical Society of America
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Understanding the destruction process of ultrasound contrast agents is important in therapeutic ultrasound applications ͑such as ultrasoundenhanced drug delivery͒, as well as in certain imaging applications ...
agents for imaging and therapy applications. ͓ ...
It is important to design an appropriate cost function to improve the quality of speech produced by a corpus-based text-to-speech ͑TTS͒ synthesis. ...
doi:10.1121/1.4743419
fatcat:g5t436uevvdzfdqfenskbzrgla
Roadmap on optical sensors
2017
Journal of Optics
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An application that will probably develop strongly in the coming years is the use of terahertz frequencies for high speed telecommunications. ...
Two sections of this paper provide an overview of laser-based and frequency combbased sensors. ...
Acknowledgments: We thank Steve Maddern, Andre Luiten, Heike Ebendorff-Heidepriem and Ori Henderson-Sapir for useful discussions. ...
doi:10.1088/2040-8986/aa7419
pmid:29375751
pmcid:PMC5781231
fatcat:a52iumt3uvfrfaqquzfwxwofhe
Trends in preference, programming and design of concert halls for symphonic music
2008
Journal of the Acoustical Society of America
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in real-time using an integrated ultrasound imaging probe. ...
from speckle serves as an index of diagnosis. ...
The results show that, despite a dramatic reduction of speech information, a pattern of binary gains provides an adequate basis for speech perception in noise. ...
doi:10.1121/1.2932471
fatcat:hhka5ml2fvcszklkzau2lw3gka
Cross‐spectral synergy and consonant identification
2008
Journal of the Acoustical Society of America
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This paper provides an overview of a unique monitoring system used in England and Wales for tracking the sound insulation performance for 110 000 new build homes per annum. ...
There are no specific regulations in several European countries for assessing such kind of noise, neither reference indexes for its evaluation. ...
This talk presents an overview of physical basis for the action of acoustic radiation force on particles in standing waves in relation to biomedical applications. ...
doi:10.1121/1.2935680
fatcat:znwocm35unasharfwbcap5omim
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