I am a post-doctoral research fellow at Harvard School of Engineering and Applied Science, under the support of the Croucher Foundation Post-Doctoral Research Fellowship.

My current research focuses on large-scale statistical signal processing. I am interested in designing and analyzing tools for signal reconstruction, inference and detection. In particular, I work on:

  1. random sampling algorithms for large-scale image denoising problems;
  2. sampling and inference for spatial-temporal single photon imaging;
  3. nonparametric estimation and analysis of graph limits.

My advisors at Harvard are Yue M. Lu and Todd Zickler. I also work with Edo Airoldi at the Department of Statistics.

You are welcome to visit my old website at UC San Diego: http://videoprocessing.ucsd.edu/~stanleychan

News

"Adaptive Non-local Means for Multiview Image Denoising" accepted to ICIP 2013

June 3, 2013

A new paper "Adaptive Non-local Means for Multiview Image Denoising - Searching for the Right Patches via a Statistical Approach" is accepted to IEEE International Conference on Image Processing (ICIP 2013). In this paper, me and my colleagues at UC San Diego propose an adaptive denoising scheme for multiview imaging systems. Different from the classical non-local means where the number of patches is fixed, we propose to adaptively choose the best patches for denoising. For more details of this project, please visit http://videoprocessing.ucsd.edu/~eluo/projects/multiview_denoising/

luo_chan_pan_nguyen_2013.pdf1.39 MB

"Fast Non-local Filtering by Random Sampling" accepted to ICASSP 2013

March 20, 2013

A new paper "Fast non-local filtering by random sampling" is accepted to IEEE International Conference on Acoustics Speech and Signal Processing (ICASSP 2013). In this paper, Yue and I applied large deviation principles (LDP) to study a very popular class of image denoising algorithms known as the non-local filtering. We showed that with extremely high probability, the computationally intensive non-local filtering operations can be approximated using a Monte Carlo random sampling scheme. In addition, we found that with one additional cost-less step by normalizing the columns of the graph adjacency matrix, the asymmetric non-local filter becomes symmetrized according to Sinkhorn-Knopp. This symmetrized filter further boosts up denoising quality by a big margin.

chan_zickler_lu_2013.pdf257.64 KB