Search Results for author: Mehrtash T. Harandi

Found 14 papers, 1 papers with code

EINS: Long Short-Term Memory with Extrapolated Input Network Simplification

no code implementations25 Sep 2019 Nicholas I-Hsien Kuo, Mehrtash T. Harandi, Nicolas Fourrier, Gabriela Ferraro, Christian Walder, Hanna Suominen

This paper contrasts the two canonical recurrent neural networks (RNNs) of long short-term memory (LSTM) and gated recurrent unit (GRU) to propose our novel light-weight RNN of Extrapolated Input for Network Simplification (EINS).

Image Generation Imputation +2

DecayNet: A Study on the Cell States of Long Short Term Memories

no code implementations27 Sep 2018 Nicholas I.H. Kuo, Mehrtash T. Harandi, Hanna Suominen, Nicolas Fourrier, Christian Walder, Gabriela Ferraro

It is unclear whether the extensively applied long-short term memory (LSTM) is an optimised architecture for recurrent neural networks.

More About VLAD: A Leap From Euclidean to Riemannian Manifolds

no code implementations CVPR 2015 Masoud Faraki, Mehrtash T. Harandi, Fatih Porikli

This paper takes a step forward in image and video coding by extending the well-known Vector of Locally Aggregated Descriptors (VLAD) onto an extensive space of curved Riemannian manifolds.

Classification Face Recognition +2

Bags of Affine Subspaces for Robust Object Tracking

no code implementations11 Aug 2014 Sareh Shirazi, Conrad Sanderson, Chris McCool, Mehrtash T. Harandi

We propose an adaptive tracking algorithm where the object is modelled as a continuously updated bag of affine subspaces, with each subspace constructed from the object's appearance over several consecutive frames.

Object Object Tracking

Expanding the Family of Grassmannian Kernels: An Embedding Perspective

no code implementations4 Jul 2014 Mehrtash T. Harandi, Mathieu Salzmann, Sadeep Jayasumana, Richard Hartley, Hongdong Li

Modeling videos and image-sets as linear subspaces has proven beneficial for many visual recognition tasks.

Clustering

From Manifold to Manifold: Geometry-Aware Dimensionality Reduction for SPD Matrices

no code implementations4 Jul 2014 Mehrtash T. Harandi, Mathieu Salzmann, Richard Hartley

In particular, we search for a projection that yields a low-dimensional manifold with maximum discriminative power encoded via an affinity-weighted similarity measure based on metrics on the manifold.

Dimensionality Reduction

Domain Adaptation on the Statistical Manifold

no code implementations CVPR 2014 Mahsa Baktashmotlagh, Mehrtash T. Harandi, Brian C. Lovell, Mathieu Salzmann

Here, we propose to make better use of the structure of this manifold and rely on the distance on the manifold to compare the source and target distributions.

Object Recognition Unsupervised Domain Adaptation

K-Tangent Spaces on Riemannian Manifolds for Improved Pedestrian Detection

no code implementations5 Mar 2014 Andres Sanin, Conrad Sanderson, Mehrtash T. Harandi, Brian C. Lovell

For covariance-based image descriptors, taking into account the curvature of the corresponding feature space has been shown to improve discrimination performance.

Pedestrian Detection

Object Tracking via Non-Euclidean Geometry: A Grassmann Approach

no code implementations3 Mar 2014 Sareh Shirazi, Mehrtash T. Harandi, Brian C. Lovell, Conrad Sanderson

A robust visual tracking system requires an object appearance model that is able to handle occlusion, pose, and illumination variations in the video stream.

Object Object Tracking +1

Sparse Coding and Dictionary Learning for Symmetric Positive Definite Matrices: A Kernel Approach

1 code implementation16 Apr 2013 Mehrtash T. Harandi, Conrad Sanderson, Richard Hartley, Brian C. Lovell

Recent advances suggest that a wide range of computer vision problems can be addressed more appropriately by considering non-Euclidean geometry.

Dictionary Learning Face Recognition +3

Spatio-Temporal Covariance Descriptors for Action and Gesture Recognition

no code implementations25 Mar 2013 Andres Sanin, Conrad Sanderson, Mehrtash T. Harandi, Brian C. Lovell

We propose a new action and gesture recognition method based on spatio-temporal covariance descriptors and a weighted Riemannian locality preserving projection approach that takes into account the curved space formed by the descriptors.

General Classification Gesture Recognition +1

On Robust Face Recognition via Sparse Encoding: the Good, the Bad, and the Ugly

no code implementations7 Mar 2013 Yongkang Wong, Mehrtash T. Harandi, Conrad Sanderson

Thorough experiments on AR, FERET, exYaleB, BANCA and ChokePoint datasets show that the proposed local SR approach obtains considerably better and more robust performance than several previous state-of-the-art holistic SR methods, in both verification and closed-set identification problems.

Face Recognition Face Verification +1

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