Head, Aerial Image Exploitation Division, Aeronautical Development Establishment (DRDO), C V Raman Nagar, Bangalore – 560 093

Abstract:

The objective of this work is to study and develop a suitable algorithm for High Resolution (HR) reconstruction of images from a sequence of Low Resolution (LR) images obtained from an aerial reconnaissance platform. The transformation parameters between the sequence of images with only translation motion could be determined using frequency based methods. In the case of images having translation, rotation and scaling, a more accurate feature based approach using affine based registration is used to compute the transformation parameters. The different phases of the research work are initial estimation of the high resolution image using bi cubic interpolation, estimation of transformation parameters and a MAP estimation technique by minimizing a cost function.

Keywords: High resolution - reconstruction, Affine transformation

Biographies:

Jharna Majumdar received B.Tech (Hons.) in Electronics and Electrical Engineering and Post Graduate Diploma in Computer Technology from Indian Institute of Technology Kharagpur in 1969 and 1970 respectively. She received her PhD in Electrical Engineering in 1980. She has about 34 years of research experience in the country and abroad. She worked as Research Scientist in the area of ‘Robotics and Automation’ at the Institute of Real Time Computer Systems and Robotics, Karlsruhe, Germany during 1983 to 1989. Currently she is a scientist and Head of Aerial Image Exploitation Division, Aeronautical Development Establishment (DRDO), Bangalore. Her research areas are related to Computer Vision, AI and Aerial Image Exploitation.

B. Vanathy received B.E in Electronics and Communication Engineering and M.E in Computer science in 1997 and 1999 respectively Currently she is a scientist in Aerial Image Exploitation Division, Aeronautical Development Establishment (DRDO), Bangalore. Her interested research areas are registration, mosaicing and Aerial Image Exploitation.

Lekshmi. S. graduated in Mathematics and post-graduated in Computer Science in 1995 and 1997 respectively. She received her Ph.D in Computer Science from University of Kerala in 2003. She worked as a research fellow for ISRO project and STEC project and was research associate of ADE(DRDO). Currently she is a scientist in Aerial Image Exploitation Division, Aeronautical Development Establishment (DRDO), Bangalore. Her research areas are fractals, pattern recognition, Astronomical Image analysis and Aerial Image Exploitation.

BibTex:

@ARTICLE{P1150640001,

AUTHOR = {Jharna Majumdar and B. Vanathy and Lekshmi. S },

TITLE = {Constructing High Resolution Image from a Sequence of Low Resolution Images},

JOURNAL = {ICGST International Journal on Graphics, Vision and Image Processing, GVIP},

YEAR = {2006},

VOLUME={06},

ISSUE = {4},

PAGES={47--54}

}

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