Research Interests

I do research in the areas of mathematical signal processing and statistical inference, with broad applications in sensing, communications, imaging and image processing. More information can be found in my publications. Current projects in my group include:

  1. Signal processing and representations on large meshes and graphs;
  2. Computational imaging;
  3. Sparse signal processing.

News

Imaging by One-Bit Pixels

June 5, 2011

Before the advent of digital image sensors, photography, for the most part of its history, used film to record light information. In the paper Bits from Photons: Oversampled Image Acquisition Using Binary Poisson Statistics, we study a new digital image sensor that is reminiscent of photographic film. Each pixel in the sensor has a binary response, giving only a one-bit quantized measurement of the local light intensity.

ICASSP Best Student Paper Award

March 21, 2011

The paper Can One Hear the Shape of a Room: The 2-D Polygonal Case was awarded the Best Student Paper Award at the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) in 2011. In a famous work, M. Kac asks the catchy question “Can you hear the shape of a drum?”. This problem is related to a question in astrophysics, and the answer is negative, meaning, different drum shapes can have the same resonant frequencies.