Presentations

Presentations at Conferences and Workshops

  1. Phase Retrieval from Local Measurements: Deterministic Measurement Constructions and Efficient Recovery Algorithms.

    • SIAM Conference on Imaging Science (SIAM IS18), Bologna, Italy, June 2018. [slides]

    • 7th International Conference on Computational Harmonic Analysis, Nashville, TN, May 2018 [slides]

    • 2018 Information Theory and Applications (ITA) Workshop, San Diego, CA, Feb. 2018 [slides]

    • 2017 SIAM Pacific Northwest Conference, Corvallis, OR, Oct. 2017 [slides]

  2. Fast Robust Phase Retrieval from Local Correlation Measurements.

    • AMS Special Session on Mathematics of Signal Processing and Information, Joint Mathematics Meeting (JMM 2017), Atlanta, GA, Jan 2017. [slides]

    • SIAM Conference on Imaging Science (SIAM IS16), Albuquerque, NM, May 2016. [slides]

    • SIAM Great Lakes Spring Meeting, University of Michigan – Dearborn, MI, April 2016. [slides]

  3. Fast Angular Synchronization for Phase Retrieval via Incomplete Information. SPIE Optics+Photonics, Wavelets and Sparsity XVI, San Diego, CA, August 2015. [slides]

  4. Fast Phase Retrieval for High Dimensions. AMS Central Spring Sectional Meeting, Michigan State University, East Lansing, MI, March 2015. [slides]

  5. Robust and Efficient Computational Methods for Phase Retrieval. Invited speaker, ICERM Research Cluster: Computational Challenges in Sparse and Redundant Representations, The Institute for Computational and Experimental Research in Mathematics, Brown University, Providence, Rhode Island, November 2014. [slides]

  6. Direct Methods for Reconstruction of Functions and their Edges from Non-Uniform Fourier Data. Invited speaker, ICERM Research Cluster: Computational Challenges in Sparse and Redundant Representations, The Institute for Computational and Experimental Research in Mathematics, Brown University, Providence, Rhode Island, November 2014. [slides]

  7. Fast and Robust Phase Retrieval. International Conference on Spectral and High Order Methods (ICOSAHOM 14), Salt Lake City, UT, June 2014. [slides]

  8. Numerical Approximation Methods for Non-Uniform Fourier Data. AMS Joint Mathematics Meetings, Baltimore, MD, Jan 2014. [slides]

  9. Constructing Approximation Kernels for Non-Harmonic Fourier Data. SIAM Annual Meeting, San Diego, CA, July 2013. [slides]

  10. Incorporating Edge Information in Image Reconstruction. Invited speaker, Mathematical Challenges in Biomolecular/Biomedical Imaging and Visualization, Mathematical Biosciences Institute, Ohio State University, Columbus, Ohio, February 2013. [slides]

  11. Reconstruction from Non-uniform Spectral Data. SIAM Conference on Imaging Science (IS10), Chicago, IL, April 2010. [slides]

  12. On Fourier Reconstruction from Non-uniform Spectral Data. International Conference on Spectral and High Order Methods (ICOSAHOM 09), Trondheim, Norway, June 2009. [slides]

Invited Colloquia and Seminar Talks

  1. Block-Circulant Constructions for Robust and Efficient Phase Retrieval.

    • Computational/Applied Mathematics Seminar, School of Mathematical and Statistical Sciences, Arizona State University, Tempe, AZ, May 2015. [slides]

    • Department of Mathematics and Statistics, University of Michigan, Dearborn, MI, April 2015. [slides]

  2. Fast and Robust Phase Retrieval. Center for Computational and Applied Mathematics (CCAM) Lunch Seminar, Department of Mathematics, Purdue University, West Lafeyette, IN, April 2014. [slides]

  3. Edge Detection from Spectral Data. Special Seminar, Department of Applied & Computational Mathematics, California Institute of Technology, Pasadena, CA, October 2009. [slides]

  4. Reconstruction from Non-uniform Spectral Data. Computational & Applied Mathematics Proseminar, School of Mathematical & Statistical Sciences, Arizona State University, Tempe, AZ, October 2009. [slides]

  5. Fourier Reconstruction. Department of Mathematics REU Summer Program, University of Wyoming, Laramie, WY, July 2009. [slides]

Posters at Conferences and Workshops

  1. A. Viswanathan and Mark Iwen. Fast Sparse Compressive Phase Retrieval. 49th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, November 2015. [poster]

  2. Yang Wang, Mark Iwen and A. Viswanathan. Fast and Robust Phase Retrieval. Fifth International Conference on Computational Harmonic Analysis (ICCHA V), Vanderbilt University, Nashville, TN, May 2014. [poster]

  3. A. Viswanathan, Anne Gelb, Douglas Cochran and Rosemary Renaut. Reconstruction from Non-uniform Spectral Data. February Fourier Talks, The Norbert Wiener Center for Harmonic Analysis and Applications, University of Maryland, College Park, College Park, MD, February 2010. [poster]

  4. A. Viswanathan, Anne Gelb, Douglas Cochran and Rosemary Renaut. Reconstruction from Non-uniform Spectral Data. Southwest Conference on Integrated Mathematical Methods in Medical Imaging, Arizona State University, Tempe, AZ, February 2010. [poster]

  5. A. Viswanathan, Wolfgang Stefan, Anne Gelb, Douglas Cochran and Rosemary Renaut. Edge Detection from Fourier Data and its Application to PSF Estimation in Blurring Problems. International Conference on Advances in Scientific Computing, Brown University, Providence, RI, December 2009. [poster]

  6. A. Viswanathan, Douglas Cochran, Anne Gelb and Dennis Cates. Detection of Signal Discontinuities from Noisy Fourier Data. Sensor, Signal and Information Processing (SenSIP) Consortium Poster Session, Goldwater Center, Arizona State University, Tempe, AZ, February 2008. [poster]

  7. A. Viswanathan, Douglas Cochran, Anne Gelb and Dennis Cates. Detection of Signal Discontinuities from Noisy Fourier Data. Sensor, Signal and Information Processing (SenSIP) Workshop, Sedona, AZ, May 2008. [poster]