Chandra Sekhar Seelamantula

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Welcome to my webpage!

I am Assistant Professor at the Department of Electrical Engineering, Indian Institute of Science, Bangalore. I joined the department on July 20, 2009. During May - June 2012, I am currently Visiting Professor at the Department of Electronic Engineering, Chinese University of Hong Kong. My host is Professor Thierry Blu (http://www.ee.cuhk.edu.hk/~tblu/monsite/phps/). I will be back in IISc on July 1, 2012.


Latest news
  1. May 20, 2012: A new journal paper accepted to the IEEE Transactions on Audio, Speech, and Language Processing.
  2. May 15, 2012: Our US patent on digital holographic microscopy is now published online: http://www.freepatentsonline.com/20120116703.pdf 
  3. May 10, 2012: We have openings for four research students (MSc/PhD) in our lab. Those who have applied for the August 2012 admissions at IISc (for which research interviews will be held in June) and desirous of joining our team may send me an email together with a two-page CV highlighting technical strengths.
  4. April 18, 2012: Three papers accepted to SPCOM 2012, and two papers to ICIP 2012. Congratulations Nag, Adi, Ravi, Harini, and Ravindra!
  5. April 16, 2012: I will be offering the Digital Image Processing course during August - December 2012 semester.
  6. March 9, 2012: Some new videos of biomedical and biological image segmentation added in the Projects page (cf. menu on the left-hand side).
  7. February 29, 2012: We have a new accepted project on "Robust parameter estimation techniques for multicomponent FM signals," funded by the Indian Space Research Organization - IISc Space Technology Cell.
  8. February 14, 2012: Adithya Kumar Pediredla is awarded the N. R. Khambhati Memorial Medal (for System Science and Automation) for the academic year 2010-2011. The special medal distribution function is scheduled for March 3, 2012 (Founder's Day at IISc), 10.15 AM; venue: Choksi Hall. Adithya Kumar Pediredla is the first student to graduate from our lab. Congratulations Adithya!
  9. February 4, 2012: Harini Kishan and Subhadip Mukherjee won the IEEE SPS Travel Grants to travel to ICASSP 2012.
  10. December 22, 2012: We have three accepted papers at ICASSP 2012. Congratulations to Subhadip, Harini, and Aditya.
  11. December 10, 2011: A paper on "Snakes with ellipse-reproducing property" accepted to the IEEE Transactions on Image Processing.
  12. I will be offering the course E9-213: Time-Frequency Analysis during January-April 2012. The venue for the course: MMCR (EE Department); Time: 9.30 AM to 11 AM. This course does not have any postgraduate-level pre-requisites, but only undergraduate-level courses such as Fourier transforms, Signal Processing (particularly Analog signal processing), and Basic Engineering Mathematics.
Job openings
  1. February 29, 2012: New project assistant position available starting April 1, 2012. Expertise in signal processing and MATLAB programming are required. The project is on "Robust parameter estimation techniques for multicomponent FM signals." Salary of about Rs. 14,000 per month.
  2. January 30, 2012: There are no more internship opportunities for the summer of 2012 at our lab. 
  3. December 28, 2011: Position of secretary starting April 1, 2012 (either part-time or full-time) - Position filled.
  4. October 7, 2011: Upcoming project/research assistant positions (four positions) for a DIT sponsored project on Text-to-speech synthesis. The emphasis is on Signal Processing issues to ensure naturalness of synthesized speech. A good knowledge of Signal processing and programming in MATLAB and C is required. Interested candidates may send their CV to me. Background eligibility: Bachelors degree, Masters degree, PhD. There is no specific deadline. Two positions have been filled. Two more are open.
  5. September 30, 2011: Project Assistant Position to work on Microphone arrays in a collaborative project with Centre for Ecological Sciences, IISc. CSIR JRF/SRF/NET/GATE qualified candidates with some expertise in Digital Signal Processing and MATLAB or C programming may apply - Position filled.
News archive
  1. January 5, 2012: I am offering four new Masters projects for first-year ME (SSA) students: (i) Tracking Moving Cells in Biomedical Images; (ii) Regularized Image Denoising; (iii) Algorithms for Compressed Sensing; and (iv) Sparse Signal Sampling and Reconstruction Algorithms. I'm interested in taking two/three ME(SSA) students this time. ME(SSA) students desirous of working for their projects in my lab are advised to meet with me to know more about the projects.
  2. January 5, 2012: I am offering four new Masters projects for first-year ME (SP) students: (i) Compressed Sensing for speech applications; (ii) Compressed Sensing and Magnetic Resonance Imaging; (iii) Bayesian Approach to Speech Enhancement; and (iv) Microphone-Array-Based Source Localization Using Sparsity Constraints. I'm interested in taking two ME(SP) students this time. ME (SP) students desirous of working for their projects in my lab are advised to meet with me to know more about the projects.
  3. December 5, 2011: Aditya Kumar Pediredla (ME SSA student) from our lab received the Indian National Academy of Engineering (INAE) Innovative Students Project Award for his Masters thesis. He graduated from our lab in July 2011. Congratulations Aditya!
  4. August 3, 2011: Teaching assistant for my course E9 201: Digital Signal Processing. Masters or Doctoral students from IISc with a good academic record may contact me. -- Position filled.
  5. August 3, 2011: Position of Secretarial Assistant for the lab. Interested candidates may send their CV to me. -- Position filled.
  6. August 3, 2011: Three new research students joined our group: Ajay Shenoy (Ph.D.), M Satish (Ph.D.), and Sreeram Menon (M.Sc.).
  7. August 1, 2011: I received the DST Young Scientist International Travel Fellowship award for attending Interspeech 2011 (Italy) and ISPA 2011 (Croatia).
  8. July 25, 2011: I will be offering the course E9-201: Digital Signal Processing during August - December 2011. The course will be held in L8 CL, 12 PM to 1 PM; every Monday, Wednesday, and Friday. Only those students who have not taken the course in the undergraduate education are encouraged to register. The first meeting of the course will be held on Wednesday August 3, 2011; Venue: L8 CL (Central lecture hall complex); Time: 12 PM - 1 PM.
  9. June 27, 2011: Aditya Kumar Pediredla (M. E. (S. S. A.) student) has two accepted papers at the Seventh IEEE International Symposium on Image and Signal Processing and Analysis, to be held in Croatia, September 4-6, 2011. 
  10. June 13, 2011: Arun Venkitaraman, M.Sc. (Engg.) student in my lab, has recently performed on Chandana Television. He plays the violin. Congratulations Arun! The videos of his show are available here:
  11. Commercial break! :) Good old days at EPFL, when I was taking French classes at the Centre de langues of the University of Lausanne: http://www.unil.ch/cdl
  12. May 28, 2011: We have an accepted paper to Interspeech 2011: Nagarjuna Reddy Muraka and Chandra Sekhar Seelamantula, "A risk-estimation-based comparison of mean-square error and Itakura-Saito distortion measures for speech enhancement." The conference will be held during August 28-31, 2011, in Florence, Italy. Nagarjuna Reddy Muraka is a Master of Engineering (Signal Processing) student. Link to Interspeech URL: http://www.interspeech2011.org/conference/programme/session.php?id=1720
  13. May 10, 2011: Aniruddha Adiga from my lab has an accepted proposal under the Indo-Swiss Joint Research Programme (ISJRP) for Ph.D. students. His host in Switzerland is Dr. Mathew Magimai Doss from the Idiap Research Institute (http://www.idiap.ch/the-institute/contact).
  14. April 28, 2011: During August-December 2011, I will be offering the course E9-201: Digital Signal Processing.
  15. April 20, 2011: New job opening: Secretary. Requirements: Good English, computer proficiency, good interpersonal communication skills. Interested candidates may send a two-page CV (in PDF, MS Word) to Dr. Chandra Sekhar by email (chandra.sekhar@ieee.org,chandra.sekhar@ee.iisc.ernet.in).
  16. April 15, 2011: New research project on "Modulations in time-varying signals," funded by the Joint Advanced Technology Programme (JATP), IISc.
  17. April 9, 2011: New research positions in our lab at all levels -- Ph.D., M.Sc., Research Associate, Project Assistant level. Core expertise requirement is in Signal Processing. More details to come up soon. Interested candidates may send their CV to me.
  18. April 1, 2011: Summer internship positions in our lab have been filled.
  19. March 6, 2011: Haricharan Aragonda received the ICASSP 2011 Student Travel Grant.
  20. February 18, 2011: A new journal paper accepted to the Journal of Optical Society of America (for details, see Journal articles link of the left-hand side of this page).
  21. January 18, 2011: Two ICASSP papers and one SampTA paper accepted (for details, see Conference articles link on the left-hand side of this page).
  22. January 16, 2011: A new invention award from Intellectual Ventures for the invention, "A sub-Nyquist sampling method for detecting level-crossing times of analog signals." 
  23. January 15, 2011: Two invention awards from Intellectual Ventures for the inventions: (i) "Level-crossing computation technique for analog signals," (sole inventor); and (ii) "Multimodal density estimation approach to formant tracking," (jointly with Harshavardhan Sundar and T. V. Sreenivas).
  24. December 16, 2010: I am offering the course (E9 213) "Time-frequency Analysis" during January - April 2011. About 40% of the course this time will be dedicated to wavelets.
  25. December 15, 2010: Haricharan Aragonda from our lab received the first prize in the All India IEEE M.V. Chauhan Student Paper Contest 2010 for his paper titled, "Quadrature approximations in R2."
  26. Job opening: Immediately available. Research assistant position for a project on "EEG Source localization". The position is initially for one year; renewable subject to satisfactory performance, up to a maximum of five years. The ideal candidate (preferably M.E./M.Tech. but exceptional B.Tech./B.E. may also apply) should have strong mathematical & analytical skills (in particular differential equations, signal processing), and programming skills in MATLAB (Java would be a plus). Salary as per IISc regulations (approximately 1.5 lakhs per annum). The interested candidate may send in a crisp two-page CV highlighting aspects relevant to the nature of work mentioned above.
  27. Our work referred to in business magazines: http://goliath.ecnext.com/coms2/gi_0199-12358229/Studies-from-C-S-Seelamantula.html