Research

Cultivation of mind should be the ultimate aim of human existance.                     

      B. R. Ambedkar

Presently associated with NIT Rourkela as a Research Scholoar in the Department of Computer Scinece and Engineering.
Laboratory of Identification and Forensic Technology (LIFT)

Area of Research includes Biometrics Security (Periocular), Image processing, Pattern Recognition and Soft Computing.

M-tech Thesis : " A Study of Satellite Image Using PSO and FCM techniques"

Abstract:

Recent advances in geo-science and remote sensing technology leads to a collection of huge

amount of satellite images without having ground truth information. Therefore in order to

extract meaningful information from satellite images there is a need of image clustering. Kmeans

is basic algorithm for clustering proposed by MacQueen in 1967, since last four decades

many clustering techniques were proposed. This research work presents a detailed survey of

clustering techniques and algorithms available in literature and some experiments are carried

out using standard and satellite image datasets.

Normally image datasets comes with noise and shadow which may results incorrect analysis

of data, to overcome this a novel approach of fuzzy image clustering are proposed where

satellite image is first segmented based on histogram threshold optimization using Particle

Swarm Optimization (PSO) and then segmented objects are clustered using Fuzzy C-means

(FCM). Experiments are repeated for three threshold levels and fitness value of PSO, CPU

execution time is calculated for each threshold level. Objective function value of datasets using

FCM and using proposed approach is measured and compared. Our analysis shows that

segmentation before clustering using proposed method minimize objective function compared to FCM.

Publications:
1) Gautam Kumar, Pradhan Parth Sarthi, Prabhat Ranjan, Sushant Kumar "Satellite Image clustering and Optimization using k-means and PSO" IEEE Conference, ICPEICES 2016 New Delhi.

2) Gautam Kumar, Pradhan P. Sarthi, Prabhat Ranjan,"Performance of K-means based Satellite Image Clustering in RGB and HSV Color Space" in the proceding of IEEE's Conference ICRTIT 2016, Chennai.