<April 29, 2009

School of Engineering, Coimbatore

Kishore KopparapuKishore Kopparapu is a second-year M Tech student at the Amrita School of Engineering, Coimbatore. His main research focus is Computer Vision and Image Processing. Recently a paper written by him and his faculty guide, A. Baskar, was awarded the top prize in a national conference.

Titled, Fusing SAR Images using “A Trous” Algorithm Based Wavelet Decomposition, the paper described a new method for processing multispectral images. Multispectral images, in this case, images obtained from a synthetic-aperture radar (SAR) are widely used in space-based and remote sensing and mapping applications. Conventional methods of data fusion are often not satisfactory for these images; they distort the spectral characteristics of the multi-spectral data.

The winning paper described a technique based on multi-resolution wavelet decomposition, for the merging and data fusion of such images. “Standard integration procedure is based on the intensity-hue-saturation (IHS) fusion method,” stated Kishore. “We have developed a new method for integrating the Synthetic Aperture Radar (SAR) features into multispectral images using the standard integration procedure and the à trous wavelet decomposition (ATWD).”

ATWD allows extracting features from the SAR image to integrate through an additive process into the initial intensity component. Several possibilities were studied, and the best results were obtained by adding the high order coefficients of the wavelet transform of the panchromatic image to the intensity component of the multispectral image. The paper was presented at the National Conference on Information Sciences (NCIS 2009) organized by the Manipal Centre for Information Science, Manipal University on April 24, 2009.



A. BaskarA. Baskar, who obtained his M Tech in Computer Vision and Image Processing from Amrita in 2007, also has guided several other student papers for presentation in conferences around the country. Given below are three such recent papers.

Priyanka (paper listed second from top) is a second year student of M Tech; others are all final-year B Tech students of Computer Science and Engineering.

M. Mythili, G. Pradeep Kannan, R. Shivshankar, N. Venkatesh, The News Video Summarization Based on Support Vector Machines(SVMs), National Conference on Computational Intelligence (NCCI 2009), Vinayaka Mission University, April 27, 2009.

Priyanka Udayabhanu, Object Tracking from Video Sequence Using Mean Shift Algorithm, National Conference on Microwave and Optical Communication (NCMOC 2009), Alagappa Chettiar College of Engineering and Technology, April 16, 2009.

Ranjith M, Dhyaneshwaran J, Balaji R.M., Surjith Kumar M., Content Based Image Retrieval for Medical Images (Cerebrum Inferact) Using PCA, National Conference on Recent Trends in Communication and Signal Processing (RTCSP 2009), Amrita Vishwa Vidyapeetham, April 7, 2009.

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