Research

Research Interest: 

Image Processing, Pattern Recognition, Machine Learning, Deep Learning, Computer Vision, Artificial intelligence, Pattern Recognition, Video Processing. 

Brief Research Profile: 

Hiranmoy Roy, a lifetime member of IEI, has 19+ years of experience including teaching. His main focus areas are heterogeneous face recognition, face recognition in the wild, generation of image descriptors, women harassment detection, human emotion recognition, image retrieval, biometric cryptography, optimization in Deep Learning, etc. The technologies he is dealing with are Computer Vision, Deep Learning, and Image Processing. 

Publications:

Total Journal Publications (As of 2009)          :                   16

Total Cumulative Impact Factor                     :                   87.1725

Peer-Reviewed SCI Journals:

1. Soumyadip Dhar, Hiranmoy Roy, Arpan Deyasi, and Poly Saha. Uncertainty minimization in the Human Visual Response using an Interval Type-2 Fuzzy set and its Application to Rice Leaf Image enhancement. Springer Sensing and Imaging (SI). v. 25, pp. 2-28, 2024. (Impact Factor: 1.5 Journal Citation Reports)(https://doi.org./10.1007/s11220-024-00506-0) 

2. Subhadeep Koley, Hiranmoy Roy, Soumyadip Dhar, and Debotosh Bhattacherjee. Cross-modal face Recognition with Illumination-invariant Local Discrete Cosine Transform Binary Pattern (LDCTBP). Springer  Pattern Analysis and Applications (PAAA). v. 26, pp. 847-859, 2023. (Impact Factor: 3.9 Journal Citation Reports)(https://doi.org./10.1007/s10044-023-01139-x)

3. Hiranmoy Roy, Debotosh Bhattacharjee, and Ondrej Krejcar. Interpretable Local Frequency Binary Pattern (LFrBP) based Joint Continual Learning Network for Heterogeneous Face Recognition. IEEE Transactions on Information Forensics and Security (TIFS), v. 17, pp. 2125-2136, 2022. (Impact Factor: 7.231 Journal Citation Reports)(https://doi.org./10.1109/TIFS.2022.3179951)

4. Subhadeep Koley, Hiranmoy Roy, Soumyadip Dhar, and Debotosh Bhattacherjee. Illumination invariant face recognition using Fused Cross Lattice Pattern of Phase Congruency (FCLPPC). Elsevier Information Sciences (INS), v. 584, pp. 633-648, 2022. (Impact Factor: 8.2335 Journal Citation Reports)(https://doi.org./10.1016/j.ins.2021.10.059)

5. Subhadeep Koley, Hiranmoy Roy, and Debotosh Bhattacherjee. Gammadion Binary Pattern of Shearlet Coefficients (GBPSC): An illumination-invariant heterogeneous face Descriptor. Elsevier Pattern Recognition Letters (PRL), v. 145, pp. 30-36, 2021. (Impact Factor: 4.757 Journal Citation Reports)(https://doi.org./10.1016/j.patrec.2021.01.028)

6. Hiranmoy Roy, and Subhadeep Koley. Local-Friis-Radiation-Pattern (LFRP) for Face Recognition. Springer  Journal of Sensing and Imaging (SI), v. 22, pp. 1-35, 2021. (Accepted) (Impact Score: 1.5 Journal Citation Reports)(https://doi.org./10.1007/s11220-020-00325-z)

7. Debotosh Bhattacharjee, and Hiranmoy Roy. Pattern of Local Gravitational Force (PLGF): A novel Local Image Descriptor. IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI), v. 43, no. 2, pp. 595-607, 2021. (Impact Factor: 24.314 Journal Citation Reports)(https://doi.org./10.1109/TPAMI.2019.2930192)

8. Hiranmoy Roy, and Debotosh Bhattacherjee. A novel local wavelet energy mesh pattern (LWEMeP) for heterogeneous face recognition. Elsevier Image and Vision Computing (IMAVIS), v. 72, pp. 1-13, 2018. (Impact Factor: 4.2 Journal Citation Reports)(https://doi.org./10.1016/j.imavis.2018.01.004)

9. Hiranmoy Roy, and Debotosh Bhattacherjee. A novel quaternary pattern of local maximum quotient for heterogeneous face recognition. Elsevier Pattern Recognition Letters (PRL), v. 113, pp. 19-28, 2018. (Impact Factor: 4.757 Journal Citation Reports)(https://doi.org./10.1016/j.patrec.2017.09.029)

10. Hiranmoy Roy, and Debotosh Bhattacherjee. A ZigZag pattern of local extremum logarithm difference for illumination-invariant and heterogeneous face recognition. Springer Transactions on Computational Science: Special issue on Signal Processing and Security in Distributed System, v. XXXI, 2018.(https://doi.org./10.1007/978-3-662-56499-8_1)

11. Hiranmoy Roy, and Debotosh Bhattacharjee. Face sketch-photo recognition using local gradient checksum: LGCS. Springer International Journal of Machine Learning and Cybernetics (IJMLC), v. 8, Issue 5, pp. 1457-1469, 2017. (Impact Factor: 4.377 Journal Citation Reports)(https://doi.org./10.1007/s13042-016-0516-0)

12. Hiranmoy Roy, and Debotosh Bhattacharjee. Local-Gravity-Face (LG-face) for Illumination-Invariant and Heterogeneous Face Recognition. IEEE Transactions on Information Forensics and Security (TIFS), v. 11, Issue 7, pp. 1412-1424, 2016. (Impact Factor: 7.231 Journal Citation Reports)(https://doi.org./10.1109/TIFS.2016.2530043)

13. Hiranmoy Roy, and Debotosh Bhattacharjee. Face Sketch-Photo Matching Using the Local Gradient Fuzzy Pattern. IEEE Journal of Intelligent Systems (IS), v. 31, Issue 3, pp. 30-39, 2016. (Impact Factor: 6.744 Journal Citation Reports)(https://doi.org./10.1109/MIS.2016.44)

14. Hiranmoy Roy, and Debotosh Bhattacharjee. Heterogeneous Face Matching Using Geometric Edge-Texture Feature (GETF) and Multiple Fuzzy Classifier System. Elsevier Applied Soft Computing (ASOC), v. 46, pp. 967-979, 2016. (Impact Factor: 8.263 Journal Citation Reports)(https://doi.org./10.1016/j.asoc.2015.12.006)

15. Hiranmoy Roy, Debotosh Bhattacharjee, Mita Nasipuri, and Dipak Kumar Basu. Age Range Estimation from Human Face Images Using Face Triangle Formation. International Journal of Research and Reviews in Information Sciences (IJRRIS), v. 2, Issue 1, pp. 155-160, 2012.

16. Hiranmoy Roy, Debotosh Bhattacharjee, Mita Nasipuri, Dipak Kumar Basu, and Mohantapas Kundu. Construction of Frontal Face from Side-View Images Using Face Mosaicing. International Journal of Recent Trends in Engineering (IJRTE), v. 2, Issue 2, pp. 55-59, 2009.

Scopus Conferences:

1. Rakhi Tewari, Debotosh Bhattacharjee, Hiranmoy Roy, and Ondrej Krejcar. The Role of AI in Diagnosing Knee Osteoarthritis with X-Ray Imaging: Today’s Innovations and Tomorrow’s Potential. In: 3rd International Conference on Data, Electronics, and Computing (ICDEC), Sept-2024, Erciyes University, Turkey. (Accepted)

2. Nandan Ghosh, Priya Sen Purkait, Rakhi Tewari, Hiranmoy Roy, Soumyadip Dhar, Arpan Deyasi, and Poly Saha. AGROVISOR: Real-Time Leaf Disease Detection for Rice and Potato Crops. In: 3rd International Conference on Data, Electronics, and Computing (ICDEC), Sept-2024, Erciyes University, Turkey. (Accepted & presented)

3. Sudip Adhikary, Soumyadip Dhar, and Hiranmoy Roy. Real-Time Text Detection and Recognition in Low Light Video Using Fuzzy Set Based Approach. In: 2nd Doctoral Symposium on Human Centered Computing (Human), Mar-2024, CSI Kolkata Chapter and SNU, Kolkata, India. (Accepted)

4. Arijit Paul, Hiranmoy Roy, and Soumyadip Dhar. Advanced Biometric User Authentication System: Where User Id Is Face and Password Is Facial Expression. In: 2nd Doctoral Symposium on Human Centered Computing (Human), Mar-2024, CSI Kolkata Chapter and SNU, Kolkata, India. (Accepted)

5. Jayanti Das, Hiranmoy Roy, Rakhi Tewari, and Soumyadip Dhar. Biometric Based Cryptography Key Generation Using Human Face Without Any Data Storage. In: 2nd International Conference on Data, Electronics, and Computing (ICDEC), Dec-2023, Mizoram University and NIT Mizoram, Aizawl, India. (Presented)

6. Priya Sen Purkait, Nandan Ghosh, Sayan Dey, Hiranmoy Roy, and Soumyadip Dhar. A Comprehensive Approach to Classify the Skin Cancer Disease Using Latest CNN Model (YOLOv8). In: 5th Doctoral Symposium on Intelligence Enabled Research (DoSIER), Dec-2023, Cooch Behar Government Engineering College, Cooch Behar, India, in collab-oration with the Algebra University, Croatia.

7. Kamalika Banerjee, Soumyadip Dhar, and Hiranmoy Roy. Uncertain Zone-Based Color Image Enhancement. In: 5th Doctoral Symposium on Intelligence Enabled Research (DoSIER), Dec-2023, Cooch Behar Government Engineering College, Cooch Behar, India, in collab-oration with the Algebra University, Croatia.

8. Rakhi Tewari, Debotosh Bhattacharjee, Hiranmoy Roy, and Ondrej Krejcar. SSANet: Side-by-side Additive Network for Knee Osteoarthritis Severity Detection from X-ray Images. In: 4th International Conference on Frontiers in Computing and Systems (COMSYS), Oct-2023, IIT Mandi, India.

9. Soumyadip Dhar, Hiranmoy Roy, Rajib Saha, Parama Bagchi, and Bishal Ghosh. Nuclei Image Boundary Detection Based on Interval Type-2 Fuzzy Set and Bat Algorithm. In: International Conference on Research and Applications in Artificial Intelligence (RAAI), 2021, Kolkata, India.

10. Hiranmoy Roy, Soumyadip Dhar, Reema Hazra, Rija Dey, Riya Kirtania, and Sumedha Sen. Artificial Face Sketch Drawing Categorization. In: International Conference on Advanced Computational and Communication Paradigms (ICACCP), 2021, Sikkim, India (Accepted).

11. Subhadeep Koley, Hiranmoy Roy, Soumyadip Dhar, and Debotosh Bhattacherjee. Edge Detection based on Local-Friis-Radiation-Magnitude-Ratio (LFRMR). In: 5th IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2020, Bangalore, India.

12. Soumyadip Dhar, Hiranmoy Roy, Arunarka Mukhopadhyay, Antu Kundu, Arunavo Ghosh, and Soham Roy. Interpretable Underwater Image Enhancement based on Convolutional Neural Network. In: 5th IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2020, Bangalore, India.

13. Soumyadip Dhar, Malay K. Kundu, and Hiranmoy Roy. Nondestructive Testing Image Segmentation based on Neutrosophic Set and Bat Algorithm. In: 5th IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2020, Bangalore, India.

14. Priya Sen Purkait, Hiranmoy Roy, and Debotosh Bhattacherjee. Local Shearlet Energy Gammodian Pattern (LSEGP): A Scale Space Binary Shape Descriptor for Texture Classification. In: Doctoral Symposium on Intelligence Enabled Research (DoSIER), 2019, Kolkata, India.

15. Hiranmoy Roy, and Debotosh Bhattacherjee. Heterogeneous Face Matching Using Robust Binary Pattern of Local Quotient: RBPLQ. In: International Doctoral Symposium on Applied Computation and Security Systems (ACSS), 2018, Kolkata, India.

16. Subhadeep Koley, Ahana Sadhu, Hiranmoy Roy, and Soumyadip Dhar. Single Image Visibility Restoration Using Dark Channel Prior and Fuzzy Logic. In: 2nd IEEE International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), 2018, Kolkata, India.

17. Hiranmoy Roy, Soumyadip Dhar, Pousali Choudhury, Abhirup Biswas, and Abhrak Chatterjee. Microscopic Image Thresholding using Restricted Equivalence Function based Fuzzy Entropy Minimization and Bat Algorithm. In: 2nd IEEE International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), 2018, Kolkata, India.

18. Soumyadip Dhar, Hiranmoy Roy, and Anindita Chatterjee. Nondestructive testing image enhancement based on a bag of enhancement functions and Bat algorithm. In: 2nd IEEE International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), 2018, Kolkata, India.

19. Arijit Ghosh, Hiranmoy Roy, and Soumyadip Dhar. Arduino Quadcopter. In: 4th IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2018, Kolkata, India.

20. Hiranmoy Roy, Soumyadip Dhar, Kaushik Dey, Swaroop Acharjee, and Debanjana Ghosh. An Automatic Face Attractiveness Improvement Using the Golden Ratio. In: International Conference on Advanced Computational and Communication Paradigms (ICACCP), 2017, Sikkim, India.

21. Hiranmoy Roy, and Debotosh Bhattacherjee. Heterogeneous Face Matching Using ZigZag Pattern of Local Extremum Logarithm Difference: ZZPLELD. In: International Doctoral Symposium on Applied Computation and Security Systems (ACSS), 2017, Patna, India. (Presented)

22. Soumyadip Dhar, Hiranmoy Roy, Madhurima Majumder, Chitrita Biswas, and Anindita Sarkar. A novel method for underwater image segmentation based on M-band wavelet transform and human psychovisual phenomenon (HVS). In: 3rd IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2017, Kolkata, India.

23. Rakhi Tewari, Soumyadip Dhar, and Hiranmoy Roy. Image Thresholding Using LBP and GA-based Optimal Parameter Selection for 2D Tsallis-Havrda-Charvat Entropy.  In: 2nd IEEE International Conference on Research in Computational Intelligence and Communication Networks (ICRCICN), 2016, Kolkata, India.

24. Jayanti Das, and Hiranmoy Roy. Human Face Detection in Color Images Using HSV Color Histogram and WLD. In: IEEE International Conference on Computational Intelligence and Communication Networks (CICN), 2014, Kolkata, India.

Patents:

1. Hiranmoy Roy, Atalanta Dey, Swagat Santra, Priya Sen Purkait, Soumyadip Dhar. Portable Real-Time Water Quality Assessment System Using Image Processing for Particulate Contaminant Detection, Patent Application No. 202531079640, 29/08/2025. (Published)

2. Hiranmoy Roy, Poly Saha, Soumyadip Dhar. Integrated Multimodal Deep Learning System for Disease Prediction in Rice and Potato Plants Utilizing Environmental and Soil Sensors, Patent Application No. 202531075637, 22/08/2025. (Published)

3. Hiranmoy Roy, Shahobir Alam, Saheb Pramanik, Md Tofiqul Islam Ansari, Debasish Mondal, Soumen Mukherjee, Soumyadip Dhar. IoT-Based Fault Detection and Mitigation System for Micro Grid, Patent Application No. 202531070451, 24/07/2025. (Published)

4. Soumyadip Dhar, Hiranmoy Roy, Sayantan Bhar, Sampurna Bhunia, Soumyajit Pal, Rajib Kumar Garai, Siddhartha Bhattacharyya, Jan Platos, Ivan Zelinka, and Vaclav Snasel. A Contactless Ticketing System Based on Iris Recognition, Patent Application No. 202531023145, 30/05/2025. (Published)

5. Hiranmoy Roy, Snehasis Bhowmick, Avijit Biswas, Debasish Mondal, Soumen Mukherjee, Soumyadip Dhar. An IoT-based Foot Ulceration Detection System and Predicting the Risk of Plantar Fasciitis, Patent Application No. 202431051740, 2024. (Published)

6. Hiranmoy Roy, Ranjan Jana, Imon Mukherjee, and Soumyadip Dhar. An Intelligent Device for Seizure Prediction Using Ensemble Learning for Smart Healthcare, Patent Application No. 202431039903, 2024. (Published)

7. Soumyadip Dhar, Hiranmoy Roy, Arunarka Mukhopadhyay, Antu Kundu, Arunavo Ghosh, Soham Roy, Siddhartha Bhattacharyya, Jan Platos, Sergey Gorbachev, and Victor Kuzin. Underwater Image Enhancement Device Using Interval Type-2 Fuzzy Based CNN, Patent Application No. 202131036933, 2021. (Published)

8. Siddhartha Bhattacharyya, Rajarshi Mahapatra, Aditya Das Sharma, Soham Bhandary, Deepraj Chowdhary, Abhishek Basu, Hiranmoy Roy, Soumyadip Dhar, and Jan Platos. Cloud-Based Distributed Internet of Things Enabled Intelligent Colorimeter Using Color LEDs, Patent Application No. 202131047448, 2021. (Published) 

9. Leo Mrsic, Debasis De, Kousik Dasgupta, Boris Gusev, Dong Yue, Siddhartha Bhattacharyya, Soumyadip Dhar, Hiranmoy Roy, Arunarka Mukhopadhyay, Antu Kundu, Arunavo Ghosh, Soham Roy, Jan Platos, Sergey Gorbachev, Victor Kuzin. Underwater Image Enhancement and Method to Capture and Process Underwater Images. Patent Application No: 202110564, 2021(South Africa). (Granted)

10. Aditya Das Sharma, Jyoti Sekhar Banerjee, Abhishek Banerjee, Soham Bhandary, Deepaj Chowdhury, Sourav De, Mohammad Tabuk Hijji, Hiranmoy Roy, Mario Koppen, Rajarshi Mahapatra, Leo Mrsic, Ivanic Grad Leo, Khan Muhammad, Jan Platos, Svinov Ostrava, Siddhartha Bhattacharyya, Loucancy Vaclav Snasel, Soumyadip Dhar. Ein cloudbasiertes verteiltes intelligents Farbmesssystem zur Vorhersage der Farbreinheit eines beliebigen Objekts. Patent Application No: 202022103464, 2021(Germany). (Granted)

Book Chapters:

1. Subhadeep Koley, Hiranmoy Roy, and Soumyadip Dhar. A wavelet-based low frequency prior for single-image dehazing. Editors: Siddhartha Bhattacharyya, Paramartha Dutta, Anirban Mukherjee, Indrajit Pan, and Debabrata Samanta, Recent Trends in Computational Intelligence Enabled Research, Elsevier, 2021.

2. Hiranmoy Roy, and Soumyadip Dhar. Edge Detection in Underwater Image Based on Human Psycho Visual Phenomenon and Mean Particle Swarm Optimization (MPSO). Editor: Siddhartha Bhattacharyya, Hybrid Metaheuristics Research and Applications, World Scientific Publishers, Singapore.

3. Soumyadip Dhar, and Hiranmoy Roy. Underwater Image Segmentation using Human Psycho Visual Phenomenon. Editors: Sourav De, Siddhartha Bhattacharyya, and Paramartha Dutta, Intelligent Multidimensional Data and Image Processing, IGI Global Publishers, USA.  

Copyrights:

1. Priya Sen Purkait, Rishideep Chatterjee, Sulogna Roy, Sanando Chada, Debasmita Dey, and Hiranmoy Roy. MEDNRLBP: A Noise Resistance LBP Descriptor for Medical Image Texture Classification. Registration No. SW-19801/2024 (Copyright office Government of India), 2024.

2. Hiranmoy Roy, Jayanti Das, Soumyadip Dhar, and Siddhartha Bhattacharyya. Cryptographic Key Generation from Biometric Human Facial. Registration No. SW-19759/2024 (Copyright office Government of India), 2024.

3. Hiranmoy Roy, Md Hasanuj Jaman Hossain, Md Saood Khan, Ayana Dasgupta, Arnab Sen, Rajarshi Sengupta, Swetangshu Saha, Soumyadip Dhar, and Siddhartha Bhattacharyya. Live Saver Connect: An Automated Ambulance And Hospital Booking System. Registration No. SW-19645/2024 (Copyright office Government of India), 2024.

4. Hiranmoy Roy, Jayanti Das, Soumyadip Dhar, Poly Saha, and Siddhartha Bhattacharyya. Detection of Dust Present on Green Leaves Using Image Processing. Registration No. SW-19612/2024 (Copyright office Government of India), 2024.

5. Hiranmoy Roy, Kamalika Banerjee, Soumyadip Dhar, and Siddhartha Bhattacharyya. Fuzzy Type-2 Set Based Color Image Enhancement Using Region of Uncertainty. Registration No. SW-19399/2024 (Copyright office Government of India), 2024.

6. Hiranmoy Roy, Md Hasanuj Jaman Hossain, Ayana Dasgupta, Soumyadip Dhar, and Siddhartha Bhattacharyya. TRANSITMATE: A Smart Transportation and Parking System. Registration No. SW-19263/2024 (Copyright office Government of India), 2024.

7. Hiranmoy Roy, Sudip Adhikary, Soumyadip Dhar, and Siddhartha Bhattacharyya. Fuzzy Logic-based Text Recognition from Realtime Lowlight Videos. Registration No. SW-19204/2024 (Copyright office Government of India), 2024.

8. Rakhi Tewari, Debotosh Bhattacharjee, Hiranmoy Roy, and Ondrej Crejkar. A Novel Parallel Additive CNN Architecture for Knee Osteoartritis (KOA) Severity Detection from X-Ray Images. Registration No. SW-19006/2024 (Copyright office Government of India), 2024.

9. Hiranmoy Roy, Md Hasanuj Jaman Hossain, Md Saood Khan, Ayana Dasgupta, Arnab Sen, Rajarshi Sengupta, Swetangshu Saha, and Soumyadip Dhar. Healthlink Architects: Connecting Patients with Ambulance and Hospital. Registration No. L-148294/2024 (Copyright office Government of India), 2024.

10. Hiranmoy Roy, Nandan Ghosh, Sayan Dey, Priya Sen Purkait, Soumyadip Dhar, and Siddhartha Bhattacharyya. Latest CNN Model Based Accurate Skin Cancer Classification. Registration No. SW-18704/2024 (Copyright office Government of India), 2024.

11. Hiranmoy Roy, Sayantan Bhar, Sampurna Bhunia, Soumyadip Dhar, Soumen Mukherjee, and Siddhartha Bhattacharyya. Registering Cyber Crimes Using Ai Driven Chatbot with Identity Verification. Registration No. SW-18630/2024 (Copyright office Government of India), 2024.

12. Hiranmoy Roy, Md Hasanuj Jaman Hossain, Ayana Dasgupta, Soumyadip Dhar, and Siddhartha Bhattacharyya. Smart city life using automated streetlight, railway crossing, parking, and traffic management systems. Registration No. SW-18364/2024 (Copyright office Government of India), 2024.

13. Priya Sen Purkait, Nandan Ghosh, Jayanta Roy, Hiranmoy Roy, Soumyadip Dhar. AGROVISOR: A Web-Based System for Real-Time Surveillance and Diagnosis of Rice and Potato Leaf Disease Using Image Processing. Registration No. SW-18316/2024 (Copyright office Government of India), 2024.

14. Soumyadip Dhar, Hiranmoy Roy, Arunarka Mukhopadhyay, Antu Kundu, Arunavo Ghosh, Soham Roy, and Siddhartha Bhattacharyya. Fuzzy based Real Time Underwater Image Enhancement Device. Registration No. L-99566/2021 (Copyright office Government of India), 2021.

Projects

• Co-PI in the ongoing project titled ‘Hotspot Detection System in Molten Steel Torpedo Container Using Thermal Camera’ sponsored by Hi-Tech Systems & Services Ltd, for the period of 6 months (May-October, 2024).

• Co-PI in the ongoing project titled ‘AI-based Electrical Sub-Station Monitoring’ sponsored by Hi-Tech Systems & Services Ltd, for the period of 6 months (May-October, 2024).

• Co-PI in the ongoing project titled ‘Smart Agro-Robot Design for improving Production of Rice Potato based Cropping System through Autonomous Detection of Agricultural Situation’ sponsored by WB-DST, Govt. of West Bengal, for the period of 3 years (2021-2024).

• Had been Co-Investigator in the project titled ‘Distribution and Processing of Biomedical Data and Images Using HealthGrid’ sponsored by Board of Research in Nuclear Sciences (BRNS), Govt. of India for the period 2009-2011.