Despeckling of ultrasound images using non-linear conductance function

Author

Bhateja, Vikrant ; Singh, Gagan ; Srivastava, Anurag ; Singh, Jaskirat

Author_Institution

Deptt. of Electron. & Comm. Eng., SRMGPC, Lucknow, India

fYear

2014

fDate

20-21 Feb. 2014

Firstpage

722

Lastpage

726

Abstract

This paper presents a novel anisotropic diffusion (AD) filter for despeckling of ultrasound images using a non-linear conductance function. Proper choice of the conductance function while applying AD filters is extremely critical. This work proposes an improved conductance function that tends to suppress speckle with due preservation of diagnostic features. The diffusion coefficient of the AD filter thus decreases monotonically and acts as an edge seeking as well as preserving function. Peak Signal to Noise Ratio (PSNR), Coefficient of Correlation (CoC) and Speckle Suppression Index (SSI) are the quality metrics used for performance evaluation of the proposed despeckling filter.

Keywords

biomedical ultrasonics; diffusion; filtering theory; medical image processing; ultrasonic imaging; AD filters; CoC; PSNR; SSI; anisotropic diffusion filter; coefficient-of-correlation; diagnostic feature preservation; edge seeking diffusion coefficient; nonlinear conductance function; peak signal-to-noise ratio; performance evaluation; preserving function; quality metrics; speckle suppression index; ultrasound image despeckling filter; Anisotropic magnetoresistance; Conferences; Filtering; Image edge detection; Noise; Speckle; Ultrasonic imaging; AD filter; conductance function; despeckling; diffusion coefficient;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing and Integrated Networks (SPIN), 2014 International Conference on

Conference_Location

Noida

Print_ISBN

978-1-4799-2865-1

Type

conf

DOI

10.1109/SPIN.2014.6777049

Filename

6777049