Informatics Publishing Limited

S. Sridevi ¹, S. Nirmala ², S. Nirmaladevi ¹

Affiliations
1 Department of Electronics and Communication Engineering, Dhirajlal Gandhi College of Technology, Salem, Tamilnadu, 636001, IN
2 Muthayammal Engineering College, Rasipuram, Namakkal – DT, Tamilnadu, 637408, IN

Abstract

Congenital Heart Defects (CHD) are widely responsible for more than 10% of neonatal mortality in India. The objective of this work describes the sequential application of several techniques such as motion estimation, speckle suppression, image enhancement, image alignment and edge detection to delineate the edge structures of the fetal heart from clinical ultrasound images. The prominent image processing techniques used to localize the edge structures of fetal heart are Probabilistic Patch Based Weighted Maximum Likelihood Estimation (PPBMLE) based speckle noise suppression technique, Shock filter image enhancement technique and proposed modified edge detection with Binary connectedness based ANT algorithm. The main contribution of the proposed ANT algorithm for edge detection uses binary connectedness property among pixel intensities to efficiently update the heuristic information of ANT algorithm. The quantitative performance merit prove that the sequential application of the above mentioned image processing techniques was predominantly useful in delineating the ultrasound fetal heart structures and interpret pathophysiologic biomarkers from images.

Keywords

Ant Colony Optimization, Binary Connectedness, Congenital Heart Disease, Detection Morphology, Edge

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G. V. Madhunisha ¹, S. Gayathri ¹, S. Nirmaladevi ¹, K. Janardhanan ¹

Affiliations
1 Department of Biotechnology, Prathyusha Institute of Technology and Management, Aranvoyal Kuppam, Thiruvallur, IN

Abstract

Badagas are the original settlers of the Nilgiris district,Tamil Nadu in Nilgiri Biosphere Reserve falling in Western Ghats. Eight selected medicinal plants alleged to cure liver disorders are subjected to phytochemical screening and two plants assayed for antioxidant activity in the present study. The medicinal plants. Embelia basaal contains the maximum number of bioactive compounds like alkaloids, flavanoids, saponins and tannins, followed by Heracleum sprengelianum which shows alkaloids, glycosides, flavanoids and saponins. Givotia rottlariformis possesses saponnins, tannins and triterpenes only. The antioxidant activity of methanolextract of Givotia rottlariformis shows the highest activity about 5-6times more than that of ascorbic acid (the standard); whereas the methanol extract of Embelia basaal exhibits only about 3 times more than that of ascorbic acid. Therefore, crude drug preparations for jaundice therapy may be attempted utilizing these two folklore medicinal plants.

Keywords

Jaundice, Phytochemical Screening, Antioxidant Activity, Badagas, Nilgiri Biosphere Reserve.

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