Publications by Hanjie Pan | EPFL Graph Search

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Sparse recovery is a powerful tool that plays a central role in many applications, including source estimation in radio astronomy, direction of arrival estimation in acoustics or radar, super-resolution microscopy, and X-ray crystallography. Conventional a ...

Estimating Diracs in continuous two or higher dimensions is a fundamental problem in imaging. Previous approaches extended one dimensional methods, like the ones based on finite rate of innovation (FRI) sampling, in a separable manner, e.g., along the hori ...

It is a classic problem to estimate continuous-time sparse signals, like point sources in a direction-of-arrival problem, or pulses in a time-of-flight measurement. The earliest occurrence is the estimation of sinusoids in time series using Prony's method. ...

In this paper we present FRIDA—an algorithm for estimating directions of arrival of multiple wideband sound sources. FRIDA combines multi-band information coherently and achieves state- of-the-art resolution at extremely low signal-to-noise ratios. It work ...

Context. Two main classes of imaging algorithms have emerged in radio interferometry: the CLEAN algorithm and its multiple variants, and compressed-sensing inspired methods. They are both discrete in nature, and estimate source locations and intensities on ...

We propose a novel edge detection algorithm with sub-pixel accuracy based on annihilation of signals with finite rate of innovation. We show that the Fourier domain annihilation equations can be interpreted as spatial domain multiplications. From this new ...

In this paper we show that it is sufficient to recover the locations of K strong reflectors within an insonified medium from three receive elements and 2K+1 samples per element. The proposed approach leverages advances in sampling signals with a finite rat ...

Hanjie Pan

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Looking beyond Pixels : Theory, Algorithms and Applications of Continuous Sparse Recovery

Efficient Multi-dimensional Diracs Estimation with Linear Sample Complexity

Towards Generalized FRI Sampling with an Application to Source Resolution in Radioastronomy

FRIDA: FRI-Based DOA Estimation For Arbitrary Array Layouts

LEAP: Looking beyond pixels with continuous-space EstimAtion of Point sources

Annihilation-driven Localised Image Edge Models

Sparse Recovery of Strong Reflectors With an Application to Non-Destructive Evaluation