A comparative study on mother wavelet selection in ultrasound image denoising

Adamo, Francesco; Andria, G.; Attivissimo, Filippo; Lanzolla, Anna Maria Lucia; Spadavecchia, Maurizio

doi:10.1016/j.measurement.2013.04.064

Cited by 46 publications

(26 citation statements)

References 26 publications

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“…Second type of image we used in our study was the kidney image. We obtained the kidney image from the AnatQuest library (http://anatquest.nlm.nih.gov), as also seen in [17], [18]. This kidney image was used as the input image for Field II software [19], [20] to produce the noisy kidney image.…”

Section: Resultsmentioning

confidence: 99%

Comparing Non-homomorphic and Homomorphic Wavelet Filtering Techniques for Speckled Images

Gungor¹,

Karagoz²

2016

IJCTE

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Abstract-Speckle is a multiplicative noise which decreases the quality of an ultrasound image. Thus speckle reduction has become a very essential exercise for diagnoses. A wavelet-based image denoising technique is an effective filter to reduce speckle. Homomorphic processing is an approach for wavelet filtering. In this approach, to convert multiplicative noise into additive noise, first logarithmic transform is performed, and then wavelet filtering and exponential operation are performed. In the non-homomorphic approach, wavelet filtering is applied directly to the speckled image without any log or exponential operation. The present study compares the non-homomorphic and the homomorphic wavelet filtering techniques for the speckled images. Quantitative and qualitative results demonstrate that the non-homomorphic technique has higher performance than the homomorphic technique.Index Terms-Image denoising, speckle noise, ultrasonic imaging, wavelet filtering.

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Section: Resultsmentioning

confidence: 99%

Comparing Non-homomorphic and Homomorphic Wavelet Filtering Techniques for Speckled Images

Gungor¹,

Karagoz²

2016

IJCTE

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“…We obtained the kidney image from the AnatQuest library (http://anatquest.nlm. nih.gov), as also seen in [5,29]. The MATLAB Image Processing Toolbox (IPT) function, imnoise, was used to add speckle noise to the noise-free kidney image.…”

Section: Speckled Image Generation and Performance Evaluation Criteriamentioning

confidence: 99%

The homogeneity map method for speckle reduction in diagnostic ultrasound images

Güngör

Karagöz

2015

Measurement

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“…Surgery navigation system are based on the joint use of tacking system to provide the sensor localization and with respect to the patient and diagnostic imaging techniques (such as Magnetic Resonance Imaging, Computed Tomography, ultrasound imaging) to obtain a real-time imaging of the region of patient body that must be operated. Moreover, imaging techniques often require suitable procedure to improve quality images without increase the radiation dose or the acquisition time [12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A novel electromagnetic tracking system for surgery navigation

Attivissimo

Lanzolla

Carlone

et al. 2018

Computer Assisted Surgery

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Objective: This paper proposes the development of a novel electromagnetic tracking system for navigation surgery. Main objective is to provide a system able to operate in a wide tracking volume to make easier and efficient the surgical procedures by assuring high measurement accuracy. Methods: A new field generator consisting in five transmitting coils excited with Frequency Division Multiplexing technique has been developed. Attention is devoted to designing and arrangement of the coils to assure high sensitivity, system scalability and a homogeneous magnetic field inside working volume. A suitable technique based on Look-Up-Table is applied for sensor position calculation and an anthropomorphic robot is used for table calibration. Results: Experimental tests highlight a good repeatability of the measurement data and a negligible noise influence for the proposed system. The obtained tracking volume is wider with respect to the commercial tracking device used in surgical applications and seem promising. Conclusion: The main characteristic of the developed system consists of: scalable and modular configuration of Field Generator, high measured sensitivity due to the increased number of transmitting coils with respect to the classical configuration and large tracking volume. The development of the proposed magnetic tracking systems with high accuracy and wide working volume allows to promote broader utilization of advantaged techniques in surgery procedures for both improving the effectiveness and decreasing the invasiveness of medical interventions.

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A comparative study on mother wavelet selection in ultrasound image denoising

Cited by 46 publications

References 26 publications

Comparing Non-homomorphic and Homomorphic Wavelet Filtering Techniques for Speckled Images

Comparing Non-homomorphic and Homomorphic Wavelet Filtering Techniques for Speckled Images

The homogeneity map method for speckle reduction in diagnostic ultrasound images

A novel electromagnetic tracking system for surgery navigation

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