Search Results for author: Michele Sasdelli

Found 15 papers, 3 papers with code

Training Multilayer Perceptrons by Sampling with Quantum Annealers

no code implementations22 Mar 2023 Frances Fengyi Yang, Michele Sasdelli, Tat-Jun Chin

This leads to a strategy to train MLPs with quantum annealers as a sampling engine.

A Hybrid Quantum-Classical Algorithm for Robust Fitting

1 code implementation CVPR 2022 Anh-Dzung Doan, Michele Sasdelli, David Suter, Tat-Jun Chin

While our usage of quantum computing does not surmount the fundamental intractability of robust fitting, by providing error bounds our algorithm is a practical improvement over randomised heuristics.

Mutual information neural estimation for unsupervised multi-modal registration of brain images

no code implementations25 Jan 2022 Gerard Snaauw, Michele Sasdelli, Gabriel Maicas, Stephan Lau, Johan Verjans, Mark Jenkinson, Gustavo Carneiro

We propose guiding the training of a deep learning-based registration method with MI estimation between an image-pair in an end-to-end trainable network.

Image Registration

Adversarial Attacks against a Satellite-borne Multispectral Cloud Detector

no code implementations3 Dec 2021 Andrew Du, Yee Wei Law, Michele Sasdelli, Bo Chen, Ken Clarke, Michael Brown, Tat-Jun Chin

In fact, advanced EO satellites perform deep learning-based cloud detection on board the satellites and downlink only clear-sky data to save precious bandwidth.

Cloud Detection

Physical Adversarial Attacks on an Aerial Imagery Object Detector

1 code implementation26 Aug 2021 Andrew Du, Bo Chen, Tat-Jun Chin, Yee Wei Law, Michele Sasdelli, Ramesh Rajasegaran, Dillon Campbell

In this work, we demonstrate one of the first efforts on physical adversarial attacks on aerial imagery, whereby adversarial patches were optimised, fabricated and installed on or near target objects (cars) to significantly reduce the efficacy of an object detector applied on overhead images.

Object

Quantum Annealing Formulation for Binary Neural Networks

no code implementations5 Jul 2021 Michele Sasdelli, Tat-Jun Chin

Quantum annealing is a promising paradigm for building practical quantum computers.

A Chaos Theory Approach to Understand Neural Network Optimization

no code implementations1 Jan 2021 Michele Sasdelli, Thalaiyasingam Ajanthan, Tat-Jun Chin, Gustavo Carneiro

Then, we empirically show that for a large range of learning rates, SGD traverses the loss landscape across regions with largest eigenvalue of the Hessian similar to the inverse of the learning rate.

Second-order methods

Generalised Zero-Shot Learning with Domain Classification in a Joint Semantic and Visual Space

no code implementations14 Aug 2019 Rafael Felix, Ben Harwood, Michele Sasdelli, Gustavo Carneiro

Most state-of-the-art GZSL approaches rely on a mapping between latent visual and semantic spaces without considering if a particular sample belongs to the set of seen or unseen classes.

domain classification General Classification +1

Real-time tracker with fast recovery from target loss

no code implementations12 Feb 2019 Alessandro Bay, Panagiotis Sidiropoulos, Eduard Vazquez, Michele Sasdelli

When the confidence is low, we avoid updating the object's position through the feature map; instead, the tracker passes to a single-frame failure mode, during which the patch's low-level visual content is used to swiftly update the object's position, before recovering from the target loss in the next frame.

Position

Multi-modal Ensemble Classification for Generalized Zero Shot Learning

no code implementations15 Jan 2019 Rafael Felix, Michele Sasdelli, Ian Reid, Gustavo Carneiro

In this paper, we mitigate these issues by proposing a new GZSL method based on multi-modal training and testing processes, where the optimization explicitly promotes a balanced classification accuracy between seen and unseen classes.

Bayesian Inference Classification +2

Instance Retrieval at Fine-grained Level Using Multi-Attribute Recognition

no code implementations7 Nov 2018 Roshanak Zakizadeh, Yu Qian, Michele Sasdelli, Eduard Vazquez

In this paper, we present a method for instance ranking and retrieval at fine-grained level based on the global features extracted from a multi-attribute recognition model which is not dependent on landmarks information or part-based annotations.

Attribute Retrieval

Improving the Annotation of DeepFashion Images for Fine-grained Attribute Recognition

1 code implementation31 Jul 2018 Roshanak Zakizadeh, Michele Sasdelli, Yu Qian, Eduard Vazquez

After selecting categories with sufficient number of images for training, we remove very scarce attributes and merge the duplicate ones in each category, then we clean the dataset based on the new list of attributes.

Attribute

Hide and Seek tracker: Real-time recovery from target loss

no code implementations20 Jun 2018 Alessandro Bay, Panagiotis Sidiropoulos, Eduard Vazquez, Michele Sasdelli

In the case of a low confidence, the position update is rejected and the tracker passes to a single-frame failure mode, during which the patch low-level visual content is used to swiftly update the object position, before recovering from the target loss in the next frame.

Position

FineTag: Multi-attribute Classification at Fine-grained Level in Images

no code implementations19 Jun 2018 Roshanak Zakizadeh, Michele Sasdelli, Yu Qian, Eduard Vazquez

In this paper, we address the extraction of the fine-grained attributes of an instance as a `multi-attribute classification' problem.

Attribute Classification +1

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