Conference articles

2020

1. S. Asokan and C. S. Seelamantula, "Teaching a GAN what not to learn," Proceedings of Neural Information Processing Systems (NeurIPS), 2020.

2. P. K. Pokala, S. Chemudupati, and C. S. Seelamantula, "Generalized fast iteratively reweighted soft-thresholding algorithm for sparse coding under tight frames in the complex domain," Proceedings of IEEE International Conference on Image Processing (ICIP), 2020.

3. S. Srinath, S. Rudresh, C. S. Seelamantula, G. Hareesh, P. Murali Krishna, "Nyquist pulses for sub-Nyquist sampling --- Application to underwater imaging," Proceedings of IEEE International Conference on Image Processing (ICIP), 2020.

4. P. K. Pokala and C. S. Seelamantula, "Project improved FISTA and application to image deblurring," Proceedings of IEEE International Conference on Image Processing (ICIP), 2020.

5. D. Jawali, P. K. Pokala, and C. S. Seelamantula, "CORNET: Composite regularized neural network for convolutional sparse coding," Proceedings of IEEE International Conference on Image Processing (ICIP), 2020.

6. S. Chemudupati, P. K. Pokala, and C. S. Seelamantula, "Non-convex optimization for sparse interferometric phase estimation," Proceedings of IEEE International Conference on Image Processing (ICIP), 2020.

7. Vinith Kishore, Subhadip Mukherjee, and Chandra Sekhar Seelamantula, "PhaseSense—Signal Reconstruction from Phase-Only Measurements via Quadratic Programming," Proceedings of International Conference on Signal Processing and Communications (SPCOM), Bangalore, July 20-23, 2020.

8. Praveen Kumar Pokala and Chandra Sekhar Seelamantula, "Accelerated Weighted L1 Minimization for MRI Reconstruction Under Tight Frames in Complex-Domain," Proceedings of International Conference on Signal Processing and Communications (SPCOM), Bangalore, July 20-23, 2020.

9. Vinith Kishore and Chandra Sekhar Seelamantula, "Wirtinger flow algorithms for phase retrieval from binary measurements," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020.

10. Praveen Kumar Pokala, Prakash Kumar Uttam, and Chandra Sekhar Seelamantula, "ConFirmNet: Convolutional FirmNet and Application to Image Denoising and Inpainting," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020. (Invited paper to the session on Learning Based Inversion)

11. Pavan Kulkarni, Jishnu Sadasivan, Aniruddha Adiga, and Chandra Sekhar Seelamantula, "Epoch extraction from a speech signal using gammatone wavelets in a scattering network," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020.

12. Sunil Rudresh, Abijith Jagannath Kamath, and Chandra Sekhar Seelamantula, "A time-based sampling framework for finite-rate-of-innovation signals," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2020.

13. Praveen Kumar Pokala, Satvik Chemudupati, and Chandra Sekhar Seelamantula, "Adaptive weighted minimax-concave penalty based dictionary learning for brain magnetic resonance images," Proceedings of IEEE International Symposium on Biomedical Imaging (ISBI), 2020.

14. P. Kevin Raj, Aniketh Manjunath, J.R. Harish Kumar, and Chandra Sekhar Seelamantula, "Automatic classification of artery-vein from a single wavelength fundus image," Proceedings of IEEE International Symposium on Biomedical Imaging (ISBI), 2020.

15. Sukriti Paul, Hanitha Devi Gundabattula, Chandra Sekhar Seelamantula, V. R. Mujeeb, and Ajay S. Prasad, "Fully automated semantic segmentation of wireless capsule endoscopy abnormalities," Proceedings of IEEE International Symposium on Biomedical Imaging (ISBI), 2020.

2019

1. P. Kevin Raj, J. R. Harish Kumar, S. Jois, S. Harsha, and C. S. Seelamantula, "A structure tensor based Voronoi decomposition technique for optic cup segmentation," Proceedings of IEEE International Conference on Image Processing (ICIP), September 22-25, 2019, Taipei, Taiwan.

2. D. Mohan, J. R. Harish Kumar, and C. S. Seelamantula, "Optic disc segmentation using cascaded multiresolution convolutional neural networks," Proceedings of IEEE International Conference on Image Processing (ICIP), September 22-25, 2019, Taipei, Taiwan.

3. S. K. Shastri, A. Ramkumar, S. Rudresh, S. Nagesh, A. K. Thittai, D. Mazumder, and C. S. Seelamantula, "Axial super-resolution in ultrasound imaging," Proceedings of IEEE International Ultrasonics Symposium, October 6-9, 2019, Glasgow, Scotland.

4. P. K. Pokala, A. G. Mahurkar, and C. S. Seelamantula, "FirmNet: A sparsity amplified deep network deep network for solving linear inverse problems," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

5. A. G. Mahurkar, P. K. Pokala, C. S. Thakur, and C. S. Seelamantula, "SAMIR: Sparsity amplified iteratively-reweighted beamforming for high-resolution ultrasound imaging," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

6. J. K. Dhiman and C. S. Seelamantula, "A spectro-temporal technique for estimating aperiodicity and voiced/unvoiced decision boundaries of speech signals," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

7. D. Jawali, A. Kumar, and C. S. Seelamantula, "A learning approach for wavelet design," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

   1. S. Dey, K. Tahiliani, J. R. Harish Kumar, A. K. Pediredla, and C. S. Seelamantula, "Automatic segmentation of optic disc using affine snakes in gradient vector field," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

   2. J. R. Harish Kumar, K. Teotia, P. K. Raj, J. Andrade, K. V. Rajagopal, and C. S. Seelamantula, "Automatic segmentation of common carotid in longitudinal mode ultrasound images using active oblongs," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

   3. A. Kamath, S. Rudresh, and C. S. Seelamantula, "FRI modeling of Fourier descriptors," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2019.

8. A. G. Mahurkar, P. Pokala, and C. S. Seelamantula, "Iteratively reweighted beamforming for high-resolution ultrasound imaging," Proceedings of IEEE International Symposium on Biomedical Imaging 2019, April 8-11, 2019, Venice, Italy.

9. V. Sadasivan and C. S. Seelamantula, "High-accuracy patch-level classification of wireless capsule endoscopy images using a convolutional neural network," Proceedings of IEEE International Symposium on Biomedical Imaging 2019, April 8-11, 2019, Venice, Italy.

2018

1. A. Sainathan and C. S. Seelamantula, "Phase retrieval -- A deconvolution perspective," Proceedings of Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA - ASC), November 12-15, 2018, Honolulu. (Invited paper)

2. H. Sridhar, J. R. Harish Kumar, S. Jois, and C. S. Seelamantula, “An unconstrained ellipse fitting technique and application to optic cup segmentation,” Proceedings of 2018 IEEE GlobalSIP Advanced Bio-Signal Processing and Machine Learning for Medical Cyber-Physical Systems.

3. J. Sadasivan, S. Mukherjee, and C. S. Seelamantula, "Speech enhancement using the minimum-probability-of-error criterion," Proceedings of Interspeech 2018, September 2-6, 2018.

   1. J. Dhiman, N. Sharma, and C. S. Seelamantula, "Multicomponent 2-D AM-FM modeling of speech spectrograms," Proceedings of Interspeech 2018, September 2-6, 2018.

4. A. Sainathan, S. Rudresh, and C. S. Seelamantula, "An optimization framework for reconstruction of speech from a phase-encoded speech spectrogram," Proceedings of Interspeech 2018, September 2-6, 2018.

• 1. S. Mukherjee and C. S. Seelamantula, "Phase retrieval from binary measurements," IEEE Signal Processing Letters publication selected for presentation at IEEE International Conference on Image Processing (ICIP) 2018, October 7-10, 2018.

  2. A. De and C. S. Seelamantula, "Design of sampling kernels and sampling rates for two-dimensional finite-rate-of-innovation signals," Proceedings of IEEE International Conference on Image Processing (ICIP) 2018, October 7-10, 2018.

  3. D. Mohan, J. R. Harish Kumar, and C. S. Seelamantula, "High-performance optic disc segmentation using convolutional neural networks," Proceedings of IEEE International Conference on Image Processing (ICIP) 2018, October 7-10, 2018.

5. J. R. Harish Kumar, C. S. Seelamantula, J. Andrade, and K. V. Rajagopal, "Automatic segmentation of lumen intima layer in transverse mode ultrasound images," Proceedings of IEEE International Conference on Image Processing (ICIP) 2018, October 7-10, 2018.

6. S. Mukherjee, A. K. Sekuboyina, and C. S. Seelamantula, "Binary compressive sensing and super-resolution with an unknown threshold," Proceedings of International Conference on Signal Processing and Communications (SPCOM) 2018, July 16-19, 2018.

7. S. Mukherjee and C. S. Seelamantula, "A singular value relaxation technique for learning sparsifying transforms," Proceedings of International Conference on Signal Processing and Communications (SPCOM) 2018, July 16-19, 2018.

8. S. Mulleti, A. Singh, H. S. Atreya, and C. S. Seelamantula, "High-resolution nuclear magnetic resonance spectroscopy using the autocorrelation method," Focus on Microscopy 2018, March 25-28, 2018, Singapore.

9. B. A. Shenoy and C. S. Seelamantula, "Homomorphic deconvolution for quantitative phase microscopy," Focus on Microscopy 2018, March 25-28, 2018, Singapore.

10. A. Bhowmik, A. Adiga, C. S. Seelamantula, F. Hauser, J. Jacak, and B. Heise, "Localization microscopy using deep neural networks," Focus on Microscopy 2018, March 25-28, 2018, Singapore.

11. S. Mukherjee and C. S. Seelamantula, "Sparse phase retrieval algorithms for frequency-domain optical-coherence tomography," Focus on Microscopy 2018, March 25-28, 2018, Singapore.

12. S. Mulleti, B. Heise, G. Hannesschlaeger, and C. S. Seelamantula, "High-resolution frequency-domain optical-coherence tomography from low-resolution acquisition," Focus on Microscopy 2018, March 25-28, 2018, Singapore.

13. S. Rudresh, A. Adiga, B. A. Shenoy, and C. S. Seelamantula, "Wavelet based reconstruction for unlimited sampling," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2018, April 15-20, 2018, Calgary, Alberta, Canada.

14. S. Mukherjee, S. Shit, and C. S. Seelamantula, "PhaseSplit: A variable splitting framework for phase retrieval," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2018, April 15-20, 2018, Calgary, Alberta, Canada.

2017

1. A. Bhowmik, A. Adiga, C. S. Seelamantula, F. Hauser, J. Jacak and B. Heise, "Bayesian deep deconvolutional neural networks," NIPS 2017 Workshop on Bayesian Deep Learning, December 9, 2017, Long Beach Convention Center, Long Beach, US.

2. S. Mukherjee, D. Mahapatra, and C. S. Seelamantula, "Deep neural networks for sparse coding and dictionary learning," NIPS 2017 Workshop on Bayesian Deep Learning, December 9, 2017, Long Beach Convention Center, Long Beach, US.

3. J. R. Harish Kumar, S. Harsha, Y. Kamath, R. Jampala, and C. S. Seelamantula, "Automatic optic cup segmentation using Kasa's circle fitting technique," Proceedings of IEEE Region 10 Conference (TENCON), 2017.

4. J. K. Dhiman, N. Adiga, and C. S. Seelamantula, "A spectro-temporal demodulation technique for pitch estimation," Proceedings of Interspeech 2017, August 20-24, 2017, Stockholm, Sweden.

5. K. Vijayan, J. K. Dhiman, and C. S. Seelamantula, "Time-frequency coherence for periodic-aperiodic decomposition of speech signals," Proceedings of Interspeech 2017, August 20-24, 2017, Stockholm, Sweden.

6. J. R. Harish Kumar, R. Adhikari, Y. Kamath, R. Jampala, and C. S. Seelamantula, "Automatic delineation of macular regions based on a locally defined contrast function," Proceedings of IEEE International Conference on Image Processing (ICIP) 2017, Beijing, China, September 17-20, 2017. Demos and ImageJ plugin available for download by clicking on the link below.

   1. "AUTOMATIC DELINEATION OF MACULAR REGIONS BASED ON A LOCALLY DEFINED CONTRAST FUNCTION"

7. S. Mukherjee and C. S. Seelamantula, "Learning transforms with a specified condition number," Proceedings of Signal Processing with Adaptive Sparse Structured Representations (SPARS), 2017, June 5-8, 2017, Lisbon, Portugal. Link to paper: http://spars2017.lx.it.pt/index_files/papers/SPARS2017_Paper_98.pdf

8. S. T. Devarakota, A. K. Sekuboyina, and C. S. Seelamantula, "A convolutional neural network approach for abnormality detection in wireless capsule endoscopy," Proceedings of IEEE International Symposium on Biomedical Imaging (ISBI) 2017, Melbourne, Australia, April 18-21, 2017.

2016

1. A. Gupta, S. V. Gubbi, C. S. Seelamantula, "How much can a Gaussian smoother denoise?," accepted to the Tenth Indian Conference on Computer Vision, Graphics, and Image Processing 2016, to be held in IIT Guwahati, December 18-22, 2016.

2. A. Gupta, K. Subramanian, C. S. Seelamantula, "A distribution-independent risk estimator for image denoising," accepted to the Tenth Indian Conference on Computer Vision, Graphics, and Image Processing 2016, to be held in IIT Guwahati, December 18-22, 2016.

3. K. S. Chandran, C. S. Seelamantula, S. Ray, "Duration Analysis of the Gamma Rhythm -- Too Short to be a Reference!," Bernstein Conference, Berlin, September 21-23, 2016.

4. C. S. Seelamantula, "Phase-encoded speech spectrograms," Proceedings of Interspeech 2016.

5. J. Sadasivan and C. S. Seelamantula, "A Novel Risk-Estimation-Theoretic Framework for Speech Enhancement in Nonstationary and Non-Gaussian Noise Conditions," Proceedings of Interspeech 2016.

6. H. Sundar, G. D. Manavalan, T. V. Sreenivas and C. S. Seelamantula, "Reverberation-Robust One-Bit TDOA Based Moving Source Localization for Automatic Camera Steering," Proceedings of Interspeech 2016.

7. B. C. Aravind, S. K. Nagaraj, C. S. Seelamantula, S. S. Gorthi, "Active-disc-based Kalman filter technique for tracking of blood cells in microfluidic channels," Proceedings of IEEE International Conference on Image Processing (ICIP) 2016.

8. J. R. Harish Kumar, C. S. Seelamantula, N. S. Narayan, and P. Marziliano, "Automatic segmentation of common carotid artery in transverse mode," Proceedings of IEEE International Conference on Image Processing (ICIP) 2016.

9. S. Mukherjee and C. S. Seelamantula, "Convergence analysis of smoothed LASSO," Proceedings of National Conference on Communications (NCC) 2016, to be held in IIT Guwahati, March 4-6, 2016.

10. A. K. Sekuboyina and C. S. Seelamantula, "An efficient formulation and parameter selection for multiple image super-resolution," Proceedings of National Conference on Communications (NCC) 2016, to be held in IIT Guwahati, March 4-6, 2016.

11. S. Mulleti and C. S. Seelamantula, "Sampling and reconstruction of time-limited signals using sum-of-sincs kernel," Proceedings of National Conference on Communications (NCC) 2016, to be held in IIT Guwahati, March 4-6, 2016.

12. P. Narayanamurthy, G. Sreedevi, and C. S. Seelamantula, "Efficient resampling of speech/audio signals," Proceedings of National Conference on Communications (NCC) 2016, to be held in IIT Guwahati, March 4-6, 2016.

13. J. Sadasivan, S. Mukherjee, and C. S. Seelamantula, "Joint dictionary training for bandwidth extension of speech signals," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2016.

14. J. Sadasivan and C. S. Seelamantula, "An unbiased risk estimator for Gaussian mixture noise distributions -- Application to speech denoising," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2016.

15. S. Mukherjee and C. S. Seelamantula, "A divide-and-conquer dictionary learning algorithm and its performance analysis," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2016.

2015

1. J. R. Harish Kumar, A. K. Pediredla, and C. S. Seelamantula, "Active discs for automated optic disc segmentation," Proceedings of IEEE GlobalSIP 2015.

2. P. Kurpad and C. S. Seelamantula, "Dictionary-learning-based postfilter for HMM-based speech synthesis," Accepted to IEEE Region 10 Conference (TENCON), 2015.

3. C. S. Seelamantula and T. Blu, "Image denoising in multiplicative noise," Proceedings of IEEE International Conference on Image Processing (ICIP) 2015.

4. S. Mukherjee and C. S. Seelamantula, "Smoothing does not improve the convergence rate of LASSO," Accepted to SPARS 2015.

5. A. Adiga, S. Mulleti, S. Prasad, and C. S. Seelamantula, "Two-dimensional FRI signal reconstruction using blind deconvolution," Proceedings of 11th International Conference on Sampling Theory and Applications (SampTA) 2015, May 25-29, 2015.

6. S. Nagesh and C. S. Seelamantula, "An FRI model for asymmetric pulse trains and characterization of ventricular hypertrophy condition," (Invited paper) Special session on Sampling signals with finite rate of innovation in biomedical applications, 11th International Conference on Sampling Theory and Applications (SampTA) 2015, May 25-29, 2015.

7. S. Nagesh and C. S. Seelamantula, "FRI sampling and reconstruction of asymmetric pulses," Proceedings of the 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) to be held in Brisbane during April 19-24, 2015.

8. M. Venkatesh and C. S. Seelamantula, "Directional bilateral filters," Proceedings of the 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) to be held in Brisbane during April 19-24, 2015.

9. S. Mulleti and C. S. Seelamantula, "Periodic nonuniform sampling for FRI signals," Proceedings of the 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) to be held in Brisbane during April 19-24, 2015.

2014

1. C. S. Seelamantula, B. A. Shenoy, S. Coquoz, and T. Lasser, "Exact reconstruction in quantitative phase microscopy," Proceedings of the 21st IEEE International Conference on Image Processing (ICIP) to be held in Paris during October 27-30, 2014.

2. S. Srinivas, A. Adiga, and C. S. Seelamantula, "Controlled blurring for improving image reconstruction quality in flutter-shutter acquisition," Proceedings of the 21st IEEE International Conference on Image Processing (ICIP) to be held in Paris during October 27-30, 2014.

3. S. Mulleti, S. Nagesh, R. Langoju, A. Patil, and C. S. Seelamantula, "Ultrasound image reconstruction using the finite-rate-of-innovation principle," Proceedings of the 21st IEEE International Conference on Image Processing (ICIP) to be held in Paris during October 27-30, 2014.

4. S. Menon and C. S. Seelamantula, "Robust Savitzky-Golay filters," Proceedings of the 19th International Workshop on Digital Signal Processing, to be held in Hong Kong, during August 20-23, 2014.

5. B. Panisetti, T. Blu, and C. S. Seelamantula, "An unbiased risk estimator for multiplicative noise -- Application to 1-D signal denoising," Proceedings of the 19th International Workshop on Digital Signal Processing, to be held in Hong Kong, during August 20-23, 2014.

6. S. Mukherjee and C. S. Seelamantula, "A split-and-merge dictionary learning algorithm for sparse representation - Application to image denoising," Proceedings of the 19th International Workshop on Digital Signal Processing, to be held in Hong Kong, during August 20-23, 2014.

7. A. Adiga and C. S. Seelamantula, "An alternating lp-l2 projections algorithm (ALPA) for speech modeling using sparsity constraints," Proceedings of the 19th International Workshop on Digital Signal Processing, to be held in Hong Kong, during August 20-23, 2014.

8. S. R. Krishnan and C. S. Seelamantula, "Optimum parameter selection in sparse reconstruction of frequency-domain optical-coherence tomography signals," Proceedings of the 19th International Workshop on Digital Signal Processing, to be held in Hong Kong, during August 20-23, 2014.

9. S. Mulleti and C. S. Seelamantula, "Ellipse fitting using finite-rate-of-innovation principles," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, to be held in Florence, Italy, May 4-9, 2014.

10. J. Sadasivan, S. Mukherjee, and C. S. Seelamantula, "An optimum shrinkage estimator based on minimum probability of error criterion and application to signal denoising," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, to be held in Florence, Italy, May 4-9, 2014.

11. S. Nagesh, S. Mulleti, and C. S. Seelamantula, "On the role of the Hilbert transform in boosting the performance of the annihilating filter," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, to be held in Florence, Italy, May 4-9, 2014.

12. R. R. Shenoy and C. S. Seelamantula, "Frequency-domain linear prediction using temporal analysis," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, to be held in Florence, Italy, May 4-9, 2014.

13. S. Gurugopinath, C. R. Murthy, and C. S. Seelamantula, "Zero-crossings based spectrum sensing under noise uncertainties," Proceedings of National Conference on Communications 2014, to be held IIT Kanpur, February 28 - March 2, 2014.

2013

1. B. Vishwanath and C. S. Seelamantula, "Cell tracking using particle filters and level sets," Proceedings of IEEE Region 10 Conference (TENCON) 2013, October 22-25, 2013, Xi'an, China.

2. A. Adiga, M.M.-Doss, C. S. Seelamantula, "Gammatone wavelet cepstral coefficients for robust speech recognition," Proceedings of IEEE Region 10 Conference (TENCON) 2013, October 22-25, 2013, Xi'an, China.

3. J. K. Mogali, N. Nallapreddy, C. S. Seelamantula, and M. Unser, "A shape-templated based two-stage corpus callosum segmentation technqiue for sagittal plane T1-weighted brain magnetic resonance images," Proceedings of IEEE International Conference on Image Processing (ICIP) 2013.

4. A. Jose, S. R. Krishnan, and C. S. Seelamantula, "Ridge detection using Savitzky-Golay filtering and steerable second-order Gaussian derivatives," Proceedings of IEEE International Conference on Image Processing (ICIP) 2013.

5. B. A. Shenoy, S. Mukherjee, and C. S. Seelamantula, "Phase retrieval for a class of 2-D signals characterized by first-order difference equations," Proceedings of IEEE International Conference on Image Processing (ICIP) 2013.

6. S. V. Menon and C. S. Seelamantula, "SURE-optimal two-dimensional Savitzky-Golay filters for image denoising," Proceedings of IEEE International Conference on Image Processing (ICIP) 2013.

7. S. Mulleti, B. A. Shenoy, and C. S. Seelamantula, "Sparse signal reconstruction in shift-invariant spaces," Proceedings of Signal Processing with Adaptive Sparse Structured Representations (SPARS) 2013.

8. S. Mukherjee and C. S. Seelamantula, "Fixed-point algorithms for sparse signal phase retrieval," Proceedings of Signal Processing with Adaptive Sparse Structured Representations (SPARS) 2013.

9. A. Jose and C. S. Seelamantula, "Bilateral edge detectors," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, Vancouver, Canada, May 26-31, 2013.

10. H. Aragonda and C. S. Seelamantula, "Riesz-transform-based demodulation of narrowband speech spectrograms," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing Vancouver, Canada, May 26-31, 2013.

2012

1. S. Ghose, S. Hampali, and C. S. Seelamantula, "Estimation of linearly frequency modulated chirp signal parameters using instantaneous autocorrelation," Proceedings of IET Radar Conference 2013, to be held in Xi'an, China, during April 14-16, 2013.

2. S. Mulleti and C. S. Seelamantula, "A multichannel sampling method for 2-D finite-rate-of-innovation signals," Proceedings of IEEE CONECCT 2013, to be held in Bangalore.

3. S. R. Krishnan and C. S. Seelamantula, "A Generalized Stein's Estimation Approach for Speech Enhancement Based on Perceptual Criteria," Proceedings of Workshop on Statistical and Perceptual Audition (SAPA) - Speech Communication with Adaptive Learning (SCALE), 2012, to be held in Portland, September 7-8, 2012.

4. R. S. Hegadi, A. K. Pediredla, and C. S. Seelamantula, "Bilateral smoothing of gradient vector flow field and application to image segmentation," Proceedings of IEEE International Conference on Image Processing (ICIP) 2012, to be held in Orlando, September 30 - October 3, 2012.

5. H. Kishan and C. S. Seelamantula, "Optimal parameter selection for bilateral filter using Poisson unbiased risk estimate," Proceedings of IEEE International Conference on Image Processing (ICIP) 2012, to be held in Orlando, September 30 - October 3, 2012.

6. C. S. Seelamantula, "Some new results on signal reconstruction from Fourier transform magnitude spectrum," Proceedings of International Conference on Signal Processing and Communications (SPCOM) 2012, July 22-25, 2012.

7. N. R. Muraka and C. S. Seelamantula, "A risk-estimation-based formulation for speech enhancement and its relation to Wiener filtering," Proceedings of International Conference on Signal Processing and Communications (SPCOM) 2012, July 22-25, 2012.

8. R. R. Shenoy and C. S. Seelamantula, "Spectral zero-crossings: Localization properties and application to epoch extraction in speech signals," Proceedings of International Conference on Signal Processing and Communications (SPCOM) 2012, July 22-25, 2012.

9. H. Kishan and C. S. Seelamantula, "SURE-Fast bilateral filters," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2012, March 25-30, Kyoto, Japan.

10. A. K. Pediredla and C. S. Seelamantula, "A unified approach for optimization of snakuscules and ovuscules," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2012, March 25-30, Kyoto, Japan.

11. S. Mukherjee and C. S. Seelamantula, "An iterative algorithm for phase retrieval with sparsity constaints: Application to frequency-domain optical-coherence tomography," Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2012, March 25-30, Kyoto, Japan.

2011

1. R. R. Shenoy and C. S. Seelamantula, "Spectral zero-crossing for estimating interaural time delay," Proceedings of 45th Audio Engineering Society conference (Theme: Applications of time-frequency processing in audio), to be held in Helsinki, Finland, 2012.

2. A. K. Pediredla and C. S. Seelamantula, "Active-contour-based automatic image quantitation techniques for Western Blot Analysis," Proceedings of the Seventh IEEE International Symposium on Image and Signal Processing and Analysis.

3. A. K. Pediredla and C. S. Seelamantula, "A Huber-loss-driven clustering technique and its application to robust cell detection," Proceedings of the Seventh IEEE International Symposium on Image and Signal Processing and Analysis.

4. N. R. Muraka and C. S. Seelamantula, "A risk-estimation-based comparison of mean-square error and Itakura-Saito distortion measures for speech enhancement," Proceedings of Interspeech 2011.

5. H. Aragonda and C. S. Seelamantula, "Quadrature approximation properties of the spiral-phase quadrature transform," Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2011, May 22-27, Prague, Czech Republic.

6. R. R. Shenoy and C. S. Seelamantula, "Spectral-envelope group-delay models for transient signals," Proceedings of the IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2011, May 22-27, Prague, Czech Republic.

7. C. S. Seelamantula, "A finite-rate-of-innovation signal sampling perspective of the source-filter model of speech production," Proceedings of the Eighth International Workshop on Sampling Theory and Applications (SampTA) 2011, May 2-6, 2011, Singapore.

8. V. Ramakrishnan, K. Shetty, Pawan Kumar G, and C. S. Seelamantula, "Efficient post-processing techniques for speech enhancement," Proceedings of the National Conference on Communications, Bangalore, India, January 28-30, 2011.

2010

1. S. Harshavardhan, C. S. Seelamantula, and T. V. Sreenivas, “A multimodal density function estimation approach to formant tracking,” pp. 2410-2413, Proceedings of Interspeech 2010, to be held in Makuhari, Japan.

2. C. S. Seelamantula, “A sub-Nyquist sampling method for computing the levelcrossings of an analog signal: Theory and applications,” pp. 1-5, Proceedings of The Eighth International Conference on Signal Processing and Communications (SPCOM), 2010.

3. N. Pavillon, C. S. Seelamantula, M. Unser, C.D. Depeursinge, "Artifact-Free Reconstruction from Off-Axis Digital Holograms Through Nonlinear Filtering," Proceedings of SPIE Photonics Europe 2010 (SPIE-PE'10), Brussels, Belgium, April 12-16, 2010.

4. A. K. Pediredla and C. S. Seelamantula, "A novel clustering technique robust to outliers," IBM-ICARE 2010 Workshop, IBM, Bangalore.

2009

• 1. N. Pavillon, C. S. Seelamantula, M. Unser, and C. Depeursinge, “A Nonlinear Technique for Automatic Twin-Image and Zero-Order Term Suppression in Digital Holographic Microscopy,” Proceedings of the 6th International Workshop on Advanced Optical Metrology, pp. 160-163, Springer, (2009).

  2. Invited paper: C.S. Seelamantula and M. Unser, “A generalized sampling method for finite-rate-of-innovation signals,” Sampling Theory and Applications (SampTA) Conference, Special session on Sampling using finite-rate-of-innovation ideas, Marseille, 18-22 May, 2009.

  3. C. S. Seelamantula, N. Pavillon, C. Depeursinge, and M. Unser, “Zero-order-free image reconstruction in digital holographic microscopy,” Proceedings of IEEE International Symposium on Biomedical Imaging, 2009, pp.201-204.

  4. N. Ducros, A. Da Silva, J-M. Dinten, C. S. Seelamantula, M. Unser, and F. Peyrin, “Exponential-spline-based reconstruction in time-resolved fluorescence molecular tomography,” Proceedings of IEEE International Symposium on Biomedical Imaging, 2009, pp. 157-160.

  5. N. Pavillon, C. S. Seelamantula, C. Depeursinge, M. Unser, “A new nonlinear technique for automatic elimination of twin image and zero-order image in digital holography,” FRINGE 2009.

2008

• 1. C.S. Seelamantula, F. Aguet, S. Romain, P. Thévenaz, and M. Unser, “Parametric B-spline snakes on distance maps: Application to segmentation of histology images,” Proceedings of European Signal Processing Conference, August 25-29, 2008.

  2. S. Chandra Sekhar, R. Michaely, R.A. Leitgeb, and M. Unser, “Theoretical analysis of complex-conjugate-ambiguity suppression in frequency-domain optical-coherence tomography,” Proceedings of IEEE International Symposium on Biomedical Imaging, May 14-17, 2008, pp. 396-399.

  3. J.-C. Baritaux, S. Chandra Sekhar, and M. Unser, “A spline-based forward model for optical diffuse tomography,” Proceedings of IEEE International Symposium on Biomedical Imaging, May 14-17, 2008, pp. 384-387.

  4. S. Chandra Sekhar and M. Unser, “Performance analysis of the cepstral technique for frequency-domain optical-coherence tomography,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2008, March 31 - April 4, pp. 557-560.

2007

• 1. A.S. Murthy, S. Chandra Sekhar, and T.V. Sreenivas, “Robust and highresolution voiced/unvoiced classification in noisy speech using a signal smoothness criterion,” Proceedings of Interspeech, 2007.

  2. S. Chandra Sekhar, R.A. Leitgeb, A.H. Bachmann, and M. Unser, “Logarithmic transformation technique for exact signal recovery in frequency-domain optical coherence tomography,” Proceedings of SPIE European Conference on Biomedical Optics, 2007.

  3. S. Chandra Sekhar, H. Nazkani, T. Blu and M. Unser, “A new technique for high-resolution frequency domain optical coherence tomography,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2007, April 15-20, vol. I, pp. 425-428.

  4. S. Chandra Sekhar, R.A. Leitgeb, M.L. Villiger, A.H. Bachmann, T. Blu and M. Unser, “Non-iterative exact signal recovery in frequency-domain optical-coherence tomography,” Proceedings of IEEE International Symposium on Biomedical Imaging, 2007, April 12-15, pp. 808-811.

  5. T.G. Thomas and S. Chandra Sekhar, “Perception studies on the attributes of synthetic clear speech for the hard of hearing,” Proceedings of IEEE International Symposium on Signal Processing and Applications, February 12-15, 2007, pp. 1-4.

2006

• • 1. S. Chandra Sekhar, S. Pilli, C. Lakshmikanth, and T.V. Sreenivas, “Novel auditory motivated subband temporal envelope based fundamental frequency estimation algorithm,” Proceedings of European Signal Processing Conference, September 4-8, 2006.

2004

• 1. S. Chandra Sekhar and T.V. Sreenivas, “Novel approach to AM-FM decomposition with applications to speech and music analysis,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004, vol. II, pp. 753-756.

  2. S. Chandra Sekhar, “A contraction mapping technique for instantaneous frequency estimation,” IEEE India Conference, 2004.

2003

• 1. S. Chandra Sekhar and T.V. Sreenivas, “Instantaneous frequency estimation using level-crossing information,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003, vol. VI, pp. 141-144.

  2. S. Chandra Sekhar and T.V. Sreenivas, “Polynomial instantaneous frequency estimation using level-crossing information,” Proceedings of IEEE-EURASIP NSIP Workshop, 2003.

  3. J.K. Gupta, S. Chandra Sekhar, and T.V. Sreenivas, “Performance analysis of AM-FM estimators,” Proceedings of IEEE Region 10 Conference, October 2003, pp. 954-958.

  4. S. Chandra Sekhar and T.V. Sreenivas, “Polynomial instantaneous frequency estimation using zero-crossing information," National Conference on Communications, IIT Madras, 2003.

2001

• 1. S. Chandra Sekhar and T.V. Sreenivas, “Zero-crossing approach to tracking instantaneous frequency,” Proceedings of IEEE-EURASIP Workshop on Nonlinear Signal and Image Processing, 2001.

  2. S. Chandra Sekhar, “Improved robustness of zero-crossing-based frequency estimation," IEEE Bangalore Chapter Conference, 2001.