Ph.D. Student
swalpa [at] ieee [dot] org 

Swalpa Kumar Roy

I am an Assistant Professor in the Department of Computer Science and Engineering, Jalpaiguri Government Engineering College, Jalpaiguri, the 5th oldest technical institution and one of the most prestigious academic institution in West Bengal.

I am also a Ph.D. student at the Computer Vision and Pattern Recognition (CVPR) Unit at Indian Statistical Institute, Kolkata working with Prof. Bhabatosh Chanda, Fellow, IAPR, and Prof. Bidyut Baran Chaudhuri, Fellow, IEEE. I am also working under Prof. Soumitro Banerjee, Fellow, IEEE, of Indian Institute of Science Education and Research Kolkata.

Before joining CVPR, ISI Kolkata, I received my B.Tech (Computer Science & Engineering) degree from West Bengal University of Technology, India, and M.E (Computer Science & Engineering) degree from the Indian Institute of Engineering Science and Technology, Shibpur. I also worked as a Project-Linked-Person (PLP) at the OCR Lab, CVPR Unit, Indian Statistical Institute, Kolkata.

More information about me can be found in my curriculum vitae. Thank you for visiting my web page.

Research Interest

  • Computer Vision: Visual recognition (Texture/Object/Scene/Face), semi-supervised/active learning, binary descriptor, deep convolutional neural network, optical character recognition.


Research Internship


  • The Institute of Electrical and Electronics Engineers (IEEE), Student Member ID- 93837691 .
  • The International Association for Pattern Recognition (IAPR), Life Member.
  • Computer Society of India (CSI), Student Member.

Journal Publications

Fractal image compression using upper bound on scaling parameter.

Swalpa Kumar Roy, Siddharth Kumar, Bhabatosh Chanda, Bidyut B. Chaudhuri and Soumitro Banerjee.

In Journal of Chaos, Solitons & Fractals, Elsevier.

Volume: 106 • Pages: 16-22 • PDF • Publisher •Year: 2018

Local Directional ZigZag Pattern: A Rotation Invariant Descriptor for Texture Classification.

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Soumitro Banerjee, Dipak Kumar Ghosh and Shiv Ram Dubey.

In Journal of Pattern Recognition Letters, Elsevier.

Volume: 108 • Pages: 23-30 • PDF • Publisher •Year: 2018

International Conference

Fractal Image Compression using Hierarchical Classification of Sub-images.

Nilavra Bhattacharya, Swalpa Kumar Roy, Utpal Nandi and Soumitro Banerjee

In Proceedings of the 10th International Conference on Computer Vision Theory and Applications, Berlin (VISAPP-2015).

ISBN: 978-989-758-089-5 • Pages: 46-53 • PDF • Publisher •Year: 2015

A Complete Dual-Cross Pattern for Unconstrained Texture Classification.

Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri, Dipak Kumar Ghosh and Shiv Ram Dubey.

In Proceedings of the 4th IAPR Asian Conference on Pattern Recognition, China (ACPR - 2017).

ISBN:2327-0985/17 • Pages: 741-746 • PDF • Publisher •Year: 2017

Binarization of Ancient Stone Images Using Iterative Partitioning Threshold.

Siddharth Kumar, Swalpa Kumar Roy, Bhabatosh Chanda, Bidyut B. Chaudhuri and Samir Kumar Bandyopadhyay.

In Proceedings of Sixth National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics, India (NCVPRIPG - 2017).

ISBN: • Pages: • PDF • Publisher •Year: 2017

Image De-noising using Fractal Hierarchical Classification.

Swalpa Kumar Roy, Nilavra Bhattacharya, Bhabatosh Chanda, Bidyut B. Chaudhuri and Soumitro Banerjee.

In Proceedings of the 52nd Annual Convention of Computer Society of India Springer Nature Singapore.

ISBN: • Pages: • PDF •Publisher •Year: 2018