Person
Mitra Fatemi
This person is no longer with EPFL
Related publications (9)
Shapes from Pixels
In today's digital world, sampling is at the heart of any signal acquisition device. Imaging devices are ubiquitous examples that capture two-dimensional visual signals and store them as the pixels of discrete images. The main concern is whether and how th ...
EPFL2016Shapes from pixels
Martin Vetterli, Arash Amini, Loïc Arnaud Baboulaz, Mitra Fatemi
Continuous-domain visual signals are usually captured as discrete (digital) images. This operation is not invertible in general, in the sense that the continuous-domain signal cannot be exactly reconstructed based on the discrete image, unless it satisfies ...
Institute of Electrical and Electronics Engineers2016Sampling and Reconstruction of Shapes with Algebraic Boundaries
Martin Vetterli, Arash Amini, Mitra Fatemi
We present a sampling theory for a class of binary images with finite rate of innovation (FRI). Every image in our model is the restriction of to the image plane, where denotes the indicator function and is some r ...
2016Efficient multistage secret sharing scheme using bilinear map
In a multistage secret sharing (MSSS) scheme, the authorised subsets of participants could recover a number of secrets in different stages. A one-stage multisecret sharing (OSMSS) scheme is a special case of MSSS schemes in which all the secrets are recove ...
Inst Engineering Technology-Iet2014Randomized recovery for boolean compressed sensing
We consider the problem of boolean compressed sensing, which is alternatively known as group testing. The goal is to recover a small number of defective items in a large set from a few collective binary tests. This problem can be formulated as a binary lin ...
2013Optimal Sampling Rates in Infinite-Dimensional Compressed Sensing
Martin Vetterli, Loïc Arnaud Baboulaz, Mitra Fatemi
The theory of compressed sensing studies the problem of recovering a high dimensional sparse vector from its projections onto lower dimensional subspaces. The recently introduced framework of infinite-dimensional compressed sensing [1], to some extent gene ...
2013Equivalence of synthesis and atomic formulations of sparse recovery
Volkan Cevher, Mitra Fatemi, Shayan Dashmiz
Recovery of sparse signals from linear, dimensionality reducing measurements broadly fall under two well-known formulations, named the synthesis and the analysis a ́ la Elad et al. Recently, Chandrasekaran et al. introduced a new algorithmic sparse recover ...
Ieee2012Anonymous roaming in universal mobile telecommunication system mobile networks
A secure roaming protocol for mobile networks is proposed. Roaming has been analysed in some schemes from the security point of view; however, there are vulnerabilities in most of them and so the claimed security level is not achieved. The scheme offered b ...
2010A Multi-stage Secret Sharing Scheme Using All-or-Nothing Transform Approach
A multi-stage secret sharing (MSS) scheme is a method of sharing a number of secrets among a set of participants, such that any authorized subset of participants could recover one secret in every stage. The first MSS scheme was proposed by He and Dawson in ...
Springer Verlag2009