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Bashar I. Ahmad

8 accepted papers

2020

Inferring Dynamic Group Leadership Using Sequential Bayesian Methods

ICASSP 2020accepted

In group object tracking, the identification of the group leader can be highly beneficial for predicting the intention and future manoeuvres of objects as well as learning the underlying group behaviour traits. This paper presents an online approach for inferring dominant entities in tracked groups…

Cited by 0SourceScholar
2017

Efficient adaptive filtering in compressive domains for sparse systems and relation to transform-domain adaptive filtering

ICASSP 2017accepted

In this paper we introduce a novel class of efficient multichannel adaptive filtering algorithms for sparse FIR systems. By suitably integrating ideas from compressed sensing and adaptive filter theory, this class of algorithms allows to significantly reduce the actual number of adaptive coefficient…

Cited by 0SourceScholar
2017

Efficient bridging-based destination inference in object tracking

ICASSP 2017accepted

This paper proposes a probabilistic intent inference approach that is significantly more computationally efficient than other existing bridging-distributions-based predictors. It sequentially determines the probabilities of all possible destinations of a tracked object, whose motion is modelled by a…

Cited by 0SourceScholar
2016

A novel sub-Nyquist Fourier transform estimator based on alias-free hybrid stratified sampling

ICASSP 2016accepted

This paper introduces a novel method of estimating the Fourier transform of deterministic continuous-time signals from a finite number N of their nonuniformly spaced measurements. These samples, located at a mixture of deterministic and random time instants, are collected at sub-Nyquist rates since…

Cited by 0SourceScholar
2015

Destination inference using bridging distributions

ICASSP 2015accepted

We propose a novel probabilistic inference approach that permits predicting, well in advance, the intended destination of a pointing gesture aimed at selecting an icon on an in-vehicle interactive display. It models the partial 3D pointing track as a Markov bridge terminating at a nominal destinatio…

Cited by 15SourceScholar