News Column

Findings from Indian Institute of Technology Broaden Understanding of Biomedicine and Biomedical Engineering

May 14, 2014



By a News Reporter-Staff News Editor at Biotech Week -- Current study results on Biotechnology have been published. According to news reporting from Uttar Pradesh, India, by NewsRx journalists, research stated, "Ultrasound imaging is one of the most important and cheapest instrument used for diagnostic purpose among the clinicians. Due to inherent limitations of acquisition methods and systems, ultrasound images are corrupted by the multiplicative speckle noise that degrades the quality and most importantly texture information present in the ultrasound image."

The news correspondents obtained a quote from the research from the Indian Institute of Technology, "In this paper, we proposed an algorithm based on a new multiscale geometric representation as discrete ripplet transform and non-linear bilateral filter in order to reduce the speckle noise in ultrasound images. Ripplet transform with their different features of anisotropy, localization, directionality and multiscale is employed to provide effective representation of the noisy coefficients of log transformed ultrasound images. Bilateral filter is applied to the approximation ripplet coefficients to improve the denoising efficiency and preserve the edge features effectively. The performance of the proposed method is evaluated by conductive extensive simulations using both synthetic speckled and real ultrasound images."

According to the news reporters, the research concluded: "Experiments show that the proposed method provides better results of removing the speckle and preserving the edges and image details as compared to several existing methods."

For more information on this research see: Ripplet domain non-linear filtering for speckle reduction in ultrasound medical images. Biomedical Signal Processing and Control, 2014;10():79-91. Biomedical Signal Processing and Control can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier - www.elsevier.com; Biomedical Signal Processing and Control - www.elsevier.com/wps/product/cws_home/706718)

Our news journalists report that additional information may be obtained by contacting D. Gupta, Indian Inst Technol Roorkee, Dept. of Elect Engn, Roorkee 247667, Uttar Pradesh, India. Additional authors for this research include R.S. Anand and B. Tyagi (see also Biotechnology).

Keywords for this news article include: Asia, Biotechnology, India, Uttar Pradesh

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Source: Biotech Week