Niranjan Damera-Venkata (HP Labs Web page)
   Hewlett-Packard Laboratories
   1501 Page Mill road, MS 4U-6
   Palo Alto, CA 94304 USA
   Work Phone: (+1 650) 857-4788
   Home Phone: (+1 408) 720-8821
   E-mail: damera@exch.hpl.hp.com

• Wobulation: Theory and algorithms
• Signal processing for projector pipelines
• Projector-camera systems
• Digital Halftoning and inverse halftoning
• Digital camera image processing
• Multidimensional System theory
• Hilbert Transforms in communication and signal processing
• Symbolic design and analysis tools
• Image and video quality assessment
• Digital image watermarking and information embedding

• The University of Texas at Austin, Austin, Texas
  PhD in Electrical Engineering, Dec. 2000
  G.P.A.: 4.0/4.0
  Area: Telecommunications and Information Systems Engineering
  Supervisor: Dr. Brian L. Evans

• The University of Texas at Austin, Austin, Texas
  M.S in Electrical Engineering, May 1999
  G.P.A.: 4.0/4.0
  Area: Telecommunications and Information Systems Engineering
  Supervisor: Dr. Brian L. Evans

• The University of Madras, Madras, INDIA
  B.S in Electronics and Communication Engineering, May 1997
  Equivalent G.P.A.: 9.8/10.0
  Area: Multidimensional Digital Signal Processing
  Thesis title: "Stabilization and Stability Testing of Multidimensional recursive digital filters"
  Supervisor: Dr. P. S Reddy
  

Journal Articles

1. Vishal Monga, Niranjan Damera-Venkata, and Brian L. Evans, "Image Halftoning by Error Diffusion: A Survey of Methods for Artifact Reduction", SPIE Journal of Electronic Imaging, submitted.

2. Niranjan Damera-Venkata, Jonathan Yen, Vishal Monga, and Brian L. Evans, "Hardcopy Image Barcodes Via Block Error Diffusion", IEEE Transactions on Image Processing, submitted.

3. Niranjan Damera-Venkata, Brian L. Evans, and Vishal Monga, "Color Error Diffusion Halftoning", IEEE Signal Processing Magazine, vol. 20, no. 4, pp. 51-58, July 2003, invited paper.

4. Niranjan Damera-Venkata and Brian L. Evans, "Design and Analysis of Vector Color Error Diffusion Halftoning Systems", IEEE Transactions on Image Processing, vol. 10, no. 10, pp. 1552-1565, October 2001.

5. Niranjan Damera-Venkata and Brian L. Evans,"Adaptive Threshold Modulation for Error Diffusion Halftoning", IEEE Transactions on Image Processing, vol. 10, no. 1, pp. 104-116, January 2001.

6. Niranjan Damera-Venkata, Mahalakshmi Venkataraman, M. S. Hrishikesh, and P. S. Reddy, "A New Transform for the Stabilization and Stability Testing of Multidimensional Recursive digital Filters", IEEE Transactions on Circuits and Systems-II, vol. 47, no. 9, pp. 965-968, September 2000.

7. Thomas D. Kite, Niranjan Damera-Venkata, Brian L. Evans and Alan C. Bovik, "A Fast, High Quality Inverse Halftoning Algorithm for Error Diffused Halftoned images," IEEE Transactions on Image Processing,, vol. 9, no. 9, pp. 1583-1593, September 2000.

8. Niranjan Damera-Venkata, Brian L. Evans , and Shawn R. McCaslin, "Design of Optimal Minimum Phase Digital FIR Filters Using Discrete Hilbert Transforms", IEEE Transactions on Signal Processing, vol. 48, no. 5, pp. 1491-1495, May 2000.

9. Niranjan Damera-Venkata, Thomas D. Kite , Wilson S. Geisler, Brian L. Evans and Alan C. Bovik , "Image Quality Assessment Based on a Degradation Model", IEEE Transactions on Image Processing, vol. 9, no. 4, pp. 636-651, April 2000.

10. Niranjan Damera-Venkata and Brian L. Evans, "An Automated Framework for Multi-criteria Optimization of Analog Filter Designs", IEEE Transactions on Circuits and Systems-II, vol. 46, no. 8, pp 981-990, August 1999.

11. Niranjan Damera-Venkata, Mahalakshmi Venkataraman, M. S. Hrishikesh and P. S. Reddy, "Stabilization of 2-D Recursive Digital Filters by the DHT method", IEEE Transactions on Circuits and Systems-II, vol. 46, no. 1, pp 85-89, January 1999.

12. Niranjan Damera-Venkata, Srikanth Gummadi, and Brian L. Evans , "Comments on `Description of FIR Digital Filters in the form of Parallel Connection of Linear Phase FIRs' ", Electronics Letters, vol. 34, no. 9, pp. 866-867, April 30, 1998.

Conference Papers

1. Niranjan Damera-Venkata and Brian L. Evans , "Color Error Diffusion with Generalized Optimum Noise Shaping", Proc. IEEE International Conference on Image Processing,Oct. 7-10, 2001, Thessaloniki, Greece, to appear.

2. Niranjan Damera-Venkata and Brian L. Evans , "FM Halftoning Via Block Error Diffusion", Proc. IEEE International Conference on Image Processing,Oct. 7-10, 2001, Thessaloniki, Greece, to appear.

3. Niranjan Damera-Venkata and Brian L. Evans , "Matrix Gain Model for Vector Color Error Diffusion", Proc. IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing,June 3-5, 2001, Baltimore, MD, invited paper.

4. Niranjan Damera-Venkata and Brian L. Evans , "Parallel Implementation of Multifilters", Proc. IEEE Conf. on Acoustics, Speech, and Signal Processing, vol. 6, pp. 3335-3338, June 2000, Istanbul, Turkey.

5. Niranjan Damera-Venkata and Brian L. Evans , "Optimal Design of Real and Complex Minimum Phase Digital FIR Filters", Proc. IEEE Conf. on Acoustics, Speech, and Signal Processing, vol. 3, pp. 1145-1148, March 15-19, 1999, Phoenix, AZ.

6. Niranjan Damera-Venkata, Brian L. Evans, Miroslav D. Lutovac and Dejan V. Tosic, "Joint Optimization of Multiple Behavioral and Implementation Properties of Analog Filter Designs", Proceedings,IEEE International Symposium on Circuits and Systems, vol. 6, pp. 286-289, Jun. 1998, Monterey, CA

7. Niranjan Damera-Venkata, Thomas D. Kite, Mahalakshmi Venkataraman and Brian L. Evans, "Fast Blind Inverse Halftoning", Proceedings,IEEE International Conference on Image Processing,, vol. 2, pp. 64-68, Oct. 4-7, 1998, Chicago, IL.

8. Thomas D. Kite, Niranjan Damera-Venkata, Brian L. Evans and Alan C. Bovik, "A High Quality, Fast Inverse Halftoning Algorithm for Error Diffused Halftoned images," Proceedings,IEEE International Conference on Image Processing,, vol. 2, pp. 59-63, Oct. 4-7, 1998, Chicago, IL.

1. Thomas D. Kite, Niranjan Damera-Venkata and Brian L. Evans, "Fast Inverse Halftoning Package", copyright © 1998- The University of Texas. C packages to implement fast inverse halftoning. Unix and PC versions, PGM and raw greylevel supported. Blind inverse halftoning from error-diffused halftones. Inverse halftoning from fixed cluster and dispersed dot dither screens. Version 1.0 (Oct. 1998) will be available on the Web at http://www.ece.utexas.edu/~bevans/projects/inverseHalftoning.html

2. Niranjan Damera-Venkata and Brian L. Evans, "Filter Optimization Packages for Mathematica 1.1", copyright © 1993-1998, The Regents of the University of California. Mathematica packages to generate Matlab software to perform a joint optimization of several characteristics of pole-zero analog infinite impulse response filters. Supported characteristics are magnitude response, phase response, step response, and quality factors. New characteristics can be easily added. Version 1.1 (June 22, 1998) is available on the Web at http://www.ece.utexas.edu/~bevans /projects/syn_filter_software.html