EMPLOYMENT DETAILS

FlightSafety International /Visual Simulation Systems - St. Louis, MO

June 1998 -- Present

As an R&D Consultant, I have played a key role in development and implementation of algorithms for real-time sensor simulation and generic terrain modeling. Specific work includes:

• Design and implementation of algorithms for an Infra-Red Post Processor system for a V-22 Osprey flight simulator, using COTS components (Matrox Genesis on Windows NT using Visual C++). The system also involves receiving pilot control inputs over the ethernet from the host simulator.
• The above system is described in a paper presented at IITSEC '99 Conference.
• Designed algorithms to map generic texture patterns on digital maps for next generation flight simulators. Successfully assembled terrain models based on digital maps.
• Designed and implemented algorithms to create isotropic texture patterns from aerial photography. Also created anisotropic patterns from given isotropic patterns to ensure seamless fit in terrain models.
• Designed and implemented a data structure to provide clustering of textures at different resolution levels for fast retrieval. Developed a complete system in C++ as a multilevel hierarchy of clusters. The system uses Haar wavelet analysis to traverse the data structure and to store, organize, and retrieve textures.
• Designed and implemented a system to determine the position of an object being pointed to by a pilot in infra-red images. The system is usable to point camera to follow an object in real-time IR video stream.
• Currently working on texture compression using wavelet transform.

Environment: Windows NT, Microsoft Visual C++, Matrox Genesis Native Library to program the Texas Instruments C-80 DSPs, Sun Media Library for prototype development, Silicon Graphics IRIX, Solaris, ddd (debugger), Gnu C++, Korn shell for some scripts, RCS, Purify.

US Army/Aviation and Troop Command (ATCOM)

April 1997 -- September 1997.

Led a team of four developers to create an Internet web site to post advisory messages for different army aircraft for the Safety Office.

• Developed CGI scripts to automatically format messages and to attach a table of contents to each message.
• Implemented methods to perform search based on a specified criterion, such as advisory messages for a certain period for a given aircraft.
• Developed a set of administrative tools in PERL and Bourne shell to modify the displays as new advisory messages are added to the system.

Environment: PERL and Bourne Shell under Unix

Engineers India Limited

August 1983 -- August 1986.

Developed and implemented software for real-time distributed process control in a large petroleum refinery (Madras Refineries Limited)

• Designed graphics to show the status of the plant at the control room, as well as to perform operations such as control valve manipulation in the field.
• Developed real-time optimization software to be run on the supervisory computer.
• Performed acceptance tests for the overall hardware for the refinery.
• Performed factory and site acceptance tests for various computers to be used for different divisions of Engineers India Limited.

Environment: Fortran 77, Yokogawa Hokushin process control hardware and software (including Image database), Hewlett Packard supervisory computer for optimization.

Tata Institute of Fundamental Research / Speech & Digital Systems Group.

June 1982 -- October 1982.

Worked on two independent projects with full responsibility.

• Designed and implemented a disk-based operating system using a Motorolla 6800 development system. Designed software interrupt based reentrant code for system calls. Created command language interpreter and a file system on top of the OS.
• Developed software for an electronic telephone exchange for the Indian Army using Motorolla 6809 microprocessor.

Environment: M6800 Assembly, M6809 Assembly, PDP 11/45 for cross compilation.

University of Missouri -- St. Louis / Department of Math & Computer Science

August 1991 -- Present.

Joined as an Assistant Professor in 1991. Promoted as Associated Professor with tenure in March 1998. Member of doctoral faculty.

Research

In addition to teaching various courses in Computer Science at undergraduate and graduate levels, I have been involved in several projects for my research and consulting. The projects described below were implemented by me, or by students under my supervision.

• Image database research project. Developed a system to index a database of JPEG images for retrieval using query-by-example. Implementation in C.
• Minimal perfect hash function for image database indexing and spatial reasoning. Prototype implemented in Prolog.
• Web-based utilities for different projects. Developed utilities to create Unix-like man pages over the web. The utilities help create the man pages as well as to display them. Another utility was developed to be used as a bulletin board system by students.
• Software for human face recognition using wavelets. Developed programs for image degradation and analysis of psychophysical experiment data in C and Unix shellscripts. An example of the different image processing operations in the system is available over the web.
• A package for knowledge acquisition and analysis -- based on personal construct psychology -- in C and X-windows toolkit.

Teaching

Developed complete undergraduate and graduate curriculum in Computer Science.

Developed a curriculum for Software Engineering program.

Developed a new program for Graduate Certificate in Telecommunications.

Taught the following classes in the university:

• CS 476 Advanced Operating Systems
• CS 464 Multimedia Information Systems
• CS 413 Advanced Data Structures and Algorithms
• CS 379 Computer Vision
• CS 379 System Administration and Computer Security
• CS 379 C++ and X-window programming (for Boeing employees)
• CS 376 Operating Systems
• CS 373 Computer Networks and Communications
• CS 371 Database Design and Implementation
• CS 368 Computer Graphics
• CS 278 Analysis of Algorithms
• CS 275 Advanced Programming Techniques (Unix and C++)
• CS 273 The C Programming Language
• CS 225 Data Structures and Problem Solving
• CS 125 Introduction to Computer Science

Developed course material for a five-day class on Unix for local industry; taught the class almost every month since January 1999.

Service

• Served on a number of committees in the department as well as the university.
• Reviewed a number of grant proposals.
• Reviewed papers for many journals and conferences.

PROFESSIONAL AFFILIATIONS

• Association for Computing Machinery
• American Association for Artificial Intelligence
• St. Louis Unix Users' Group