Project Computer Science

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Subhajit Sanyal

Current Address:

Department of Computer Science and Engineering,

Indian Institute of Technology Delhi,

Hauz Khas,

New Delhi - 110016,

India

********@***.****.*****.**

http://www.cse.iitd.ernet.in/~subhajit/

Research Interests

Computer Vision and Computer Graphics with focus on Image Based Modeling and Rendering,

Walkthroughs, Geometric Vision, Active Vision, Image Processing

Education

Indian Institute of Technology Delhi, New Delhi, India.

Ph.D. (Near Completion)

Dissertation Area: Image Based Modeling and Rendering

Advisors: Subhashis Banerjee and Prem Kalra

Indian Institute of Technology Kanpur, Kanpur, India.

M.Sc. Physics, May 2000

Scottish Church College, University of Calcutta, Kolkata, India.

B.Sc. Physics, May 1998

Academic Achievements

Secured 98.32 percentile, in GATE 2000

Qualified for the UGC-CSIR National Eligibility Test (NET) for Junior Research Fellowship (JRF) 2000

Selected for National Scholarship for B.Sc. Results.

Publications

On Learning Shapes from Shades

Subhajit Sanyal, Mayank Bansal, Subhashis Banerjee, and Prem K Kalra.

Indian Conference on Computer Vision, Graphics and Image Processing, 2004.

Modeling of Free-Form Surfaces and Shape from Shading.

Subhajit Sanyal, Mayank Bansal, Subhashis Banerjee, and Prem K Kalra.

2nd International Symposium on 3D Data Processing, Visualization, and Transmission 3DPVT'04

To access a detailed report and see some demos, please visit.

http://www.cse.iitd.ernet.in/vglab/

Multilevel modelling and rendering of architectural scenes.

Akash M Kushal,Gaurav Chanda,Kanishka Srivastava,Mohit Gupta,Subhajit Sanyal,T. V. N. Sriram,Prem Kalra,Subhashis Banerjee. EUROGRAPHICS 2003.

To access a detailed report and see some demos, please visit.

http://www.cse.iitd.ernet.in/vglab/

Current Research Activity

Gaze control and automated navigation of avtars in guided tours of virtual worlds.

To be communicated shortly.

Work Experience

Currently employed as a Project Associate in the project ``Design and Development of Image Based Rendering System'', in the Department of Computer Science and Engineering, Indian Institute of Technology Delhi.

Projects

A selected list of projects with which I was associated.

Virtual Advertisements:

The project was to artificially render dynamic advertisements on some static billboards in a real scene as it is

being captured in a video-footage. The issues involved were real-time segmentation of occluders

and simple geometric etchniques to enable the transfer of the required texture on the billboard. For a detailed

report and some demos visit

http://www.cse.iitd.ernet.in/vglab/

Augmented Reality:

The project involved developing a novel technique for simple and fast augmentation of a static scene

with artificial moving objects or objects extracted from a motion clip. The technique essentially deals

with the recovery of camera parameters of the static image followed by a sparse modeling of the potential

occluders. A detailed report and some demos can be accessed at

http://www.cse.iitd.ernet.in/vglab/

Robot Navigation:

The project involved developing a robot navigation system, in which a robot, with mounted cameras,

can detect obstructions, and traverse a path avoiding them, from its starting position to the designated destination.

Some reports can be accessed at

http://www.cse.iitd.ernet.in/vglab/

Image based Rendering of Walk-through:

Recently, the problem of image based rendering has attracted considerable attention wherein the environmental

map for rendering of novel views are maintained in terms of a set of images instead of explicit geometric

and photommetric models of a scene. The project addressed the problem of generation of a sequence of novel views

of a scene from a set of reference views. To access a detailed report and some demos visit

http://www.cse.iitd.ernet.in/vglab/

Volume Rendering on GPU:

Volume Rendering has long been used for medical imaging, fluid dynamics and other such applications where information from 3D data is to be extracted. Due to large data sizes and intensive computations it has long been a classical problem in graphics. The recent emergence of hardware accelerated algorithms have furthered these applications and allows real time rendering. The project was to implement and analyse different techniques for rendering volumetric data and utilisation of GPU for achieving real-time interactive visualization.

Computer Skills Platforms:

Linux, Windows

Languages:

C,C++,Java, x86 Assembly

Computer Vision and Graphics specific skills:

Cameras, frame-grabbers, OpenGL

References

Available on request.

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This page was last updated on 17 October, 2005.

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