Search Results for author: Thanh-Toan Do

Found 47 papers, 17 papers with code

Probabilistic task modelling for meta-learning

1 code implementation9 Jun 2021 Cuong C. Nguyen, Thanh-Toan Do, Gustavo Carneiro

We propose probabilistic task modelling -- a generative probabilistic model for collections of tasks used in meta-learning.

Meta-Learning Variational Inference

Camouflaged Instance Segmentation In-The-Wild: Dataset And Benchmark Suite

no code implementations31 Mar 2021 Trung-Nghia Le, Yubo Cao, Tan-Cong Nguyen, Minh-Quan Le, Khanh-Duy Nguyen, Thanh-Toan Do, Minh-Triet Tran, Tam V. Nguyen

To promote the new task of camouflaged instance segmentation in-the-wild, we introduce a new dataset, namely CAMO++, by extending our preliminary CAMO dataset (camouflaged object segmentation) in terms of quantity and diversity.

Camouflaged Object Segmentation Instance Segmentation +1

Similarity of Classification Tasks

1 code implementation27 Jan 2021 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

Recent advances in meta-learning has led to remarkable performances on several few-shot learning benchmarks.

Classification Few-Shot Learning +1

Direct Quantization for Training Highly Accurate Low Bit-width Deep Neural Networks

no code implementations26 Dec 2020 Tuan Hoang, Thanh-Toan Do, Tam V. Nguyen, Ngai-Man Cheung

With this approach, we can learn activation quantizers that minimize the quantization errors in the majority of channels.

Image Classification Quantization

Deep Metric Learning Meets Deep Clustering: An Novel Unsupervised Approach for Feature Embedding

1 code implementation9 Sep 2020 Binh X. Nguyen, Binh D. Nguyen, Gustavo Carneiro, Erman Tjiputra, Quang D. Tran, Thanh-Toan Do

Based on pseudo labels, we propose a novel unsupervised metric loss which enforces the positive concentration and negative separation of samples in the embedding space.

Deep Clustering Metric Learning

Unsupervised Deep Cross-modality Spectral Hashing

no code implementations1 Aug 2020 Tuan Hoang, Thanh-Toan Do, Tam V. Nguyen, Ngai-Man Cheung

This paper presents a novel framework, namely Deep Cross-modality Spectral Hashing (DCSH), to tackle the unsupervised learning problem of binary hash codes for efficient cross-modal retrieval.

Cross-Modal Retrieval Word Embeddings

MirrorNet: Bio-Inspired Camouflaged Object Segmentation

no code implementations Pattern Recognition Journal 2020 Jinnan Yan, Trung-Nghia Le, Khanh-Duy Nguyen, Minh-Triet Tran, Thanh-Toan Do, Tam V. Nguyen

Differently from existing networks for segmentation, our proposed network possesses two segmentation streams: the main stream and the mirror stream corresponding with the original image and its flipped image, respectively.

Camouflaged Object Segmentation Camouflage Segmentation +1

Sensor Data for Human Activity Recognition: Feature Representation and Benchmarking

no code implementations15 May 2020 Flávia Alves, Martin Gairing, Frans A. Oliehoek, Thanh-Toan Do

In HAR, the development of Activity Recognition models is dependent upon the data captured by these devices and the methods used to analyse them, which directly affect performance metrics.

Activity Recognition

PAC-Bayesian Meta-learning with Implicit Prior and Posterior

no code implementations5 Mar 2020 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

We introduce a new and rigorously-formulated PAC-Bayes few-shot meta-learning algorithm that implicitly learns a prior distribution of the model of interest.

Classification Few-Shot Image Classification +1

Scalable Place Recognition Under Appearance Change for Autonomous Driving

no code implementations ICCV 2019 Anh-Dzung Doan, Yasir Latif, Tat-Jun Chin, Yu Liu, Thanh-Toan Do, Ian Reid

Our experiments show that, compared to state-of-the-art techniques, our method has much greater potential for large-scale place recognition for autonomous driving.

Autonomous Driving Visual Place Recognition

Uncertainty in Model-Agnostic Meta-Learning using Variational Inference

1 code implementation27 Jul 2019 Cuong Nguyen, Thanh-Toan Do, Gustavo Carneiro

We introduce a new, rigorously-formulated Bayesian meta-learning algorithm that learns a probability distribution of model parameter prior for few-shot learning.

Classification Few-Shot Image Classification +2

Bayesian Generative Active Deep Learning

no code implementations26 Apr 2019 Toan Tran, Thanh-Toan Do, Ian Reid, Gustavo Carneiro

Deep learning models have demonstrated outstanding performance in several problems, but their training process tends to require immense amounts of computational and human resources for training and labeling, constraining the types of problems that can be tackled.

Active Learning Data Augmentation

A Theoretically Sound Upper Bound on the Triplet Loss for Improving the Efficiency of Deep Distance Metric Learning

no code implementations CVPR 2019 Thanh-Toan Do, Toan Tran, Ian Reid, Vijay Kumar, Tuan Hoang, Gustavo Carneiro

Another approach explored in the field relies on an ad-hoc linearization (in terms of N) of the triplet loss that introduces class centroids, which must be optimized using the whole training set for each mini-batch - this means that a naive implementation of this approach has run-time complexity O(N^2).

Metric Learning

SDRSAC: Semidefinite-Based Randomized Approach for Robust Point Cloud Registration without Correspondences

1 code implementation6 Apr 2019 Huu Le, Thanh-Toan Do, Tuan Hoang, Ngai-Man Cheung

In particular, our work enables the use of randomized methods for point cloud registration without the need of putative correspondences.

Graph Matching Point Cloud Registration

V2CNet: A Deep Learning Framework to Translate Videos to Commands for Robotic Manipulation

no code implementations23 Mar 2019 Anh Nguyen, Thanh-Toan Do, Ian Reid, Darwin G. Caldwell, Nikos G. Tsagarakis

We propose V2CNet, a new deep learning framework to automatically translate the demonstration videos to commands that can be directly used in robotic applications.

SASSE: Scalable and Adaptable 6-DOF Pose Estimation

no code implementations5 Feb 2019 Huu Le, Tuan Hoang, Qianggong Zhang, Thanh-Toan Do, Anders Eriksson, Michael Milford

In this paper, we present a novel 6-DOF localization system that for the first time simultaneously achieves all the three characteristics: significantly sub-linear storage growth, agnosticism to image descriptors, and customizability to available storage and computational resources.

Pose Estimation Visual Localization

Learning Pairwise Relationship for Multi-object Detection in Crowded Scenes

no code implementations12 Jan 2019 Yu Liu, Lingqiao Liu, Hamid Rezatofighi, Thanh-Toan Do, Qinfeng Shi, Ian Reid

As the post-processing step for object detection, non-maximum suppression (GreedyNMS) is widely used in most of the detectors for many years.

Object Detection

A Binary Optimization Approach for Constrained K-Means Clustering

1 code implementation24 Oct 2018 Huu Le, Anders Eriksson, Thanh-Toan Do, Michael Milford

This approach allows us to solve constrained K-Means where multiple types of constraints can be simultaneously enforced.

MediaEval 2018: Predicting Media Memorability Task

no code implementations3 Jul 2018 Romain Cohendet, Claire-Hélène Demarty, Ngoc Duong, Mats Sjöberg, Bogdan Ionescu, Thanh-Toan Do, France Rennes

In this paper, we present the Predicting Media Memorability task, which is proposed as part of the MediaEval 2018 Benchmarking Initiative for Multimedia Evaluation.

G2D: from GTA to Data

2 code implementations16 Jun 2018 Anh-Dzung Doan, Abdul Mohsi Jawaid, Thanh-Toan Do, Tat-Jun Chin

This document describes G2D, a software that enables capturing videos from Grand Theft Auto V (GTA V), a popular role playing game set in an expansive virtual city.

3D Reconstruction Autonomous Driving +3

Bayesian Semantic Instance Segmentation in Open Set World

no code implementations ECCV 2018 Trung Pham, Vijay Kumar B G, Thanh-Toan Do, Gustavo Carneiro, Ian Reid

In this paper, we present a novel open-set semantic instance segmentation approach capable of segmenting all known and unknown object classes in images, based on the output of an object detector trained on known object classes.

Instance Segmentation Semantic Segmentation

Object Captioning and Retrieval with Natural Language

1 code implementation16 Mar 2018 Anh Nguyen, Thanh-Toan Do, Ian Reid, Darwin G. Caldwell, Nikos G. Tsagarakis

The key idea of our approach is the use of object descriptions to provide the detailed understanding of an object.

Deep-6DPose: Recovering 6D Object Pose from a Single RGB Image

no code implementations28 Feb 2018 Thanh-Toan Do, Ming Cai, Trung Pham, Ian Reid

Detecting objects and their 6D poses from only RGB images is an important task for many robotic applications.

Instance Segmentation Object Detection +2

Binary Constrained Deep Hashing Network for Image Retrieval without Manual Annotation

no code implementations21 Feb 2018 Thanh-Toan Do, Tuan Hoang, Dang-Khoa Le Tan, Trung Pham, Huu Le, Ngai-Man Cheung, Ian Reid

However, training deep hashing networks for the task is challenging due to the binary constraints on the hash codes, the similarity preserving property, and the requirement for a vast amount of labelled images.

Image Retrieval Quantization

Simultaneous Compression and Quantization: A Joint Approach for Efficient Unsupervised Hashing

no code implementations19 Feb 2018 Tuan Hoang, Thanh-Toan Do, Huu Le, Dang-Khoa Le-Tan, Ngai-Man Cheung

For unsupervised data-dependent hashing, the two most important requirements are to preserve similarity in the low-dimensional feature space and to minimize the binary quantization loss.

Image Retrieval Quantization

On-device Scalable Image-based Localization via Prioritized Cascade Search and Fast One-Many RANSAC

no code implementations10 Feb 2018 Ngoc-Trung Tran, Dang-Khoa Le Tan, Anh-Dzung Doan, Thanh-Toan Do, Tuan-Anh Bui, Mengxuan Tan, Ngai-Man Cheung

In order to overcome the resource constraints of mobile devices, we propose a system design that leverages the scalability advantage of image retrieval and accuracy of 3D model-based localization.

Image-Based Localization Image Retrieval +1

From Selective Deep Convolutional Features to Compact Binary Representations for Image Retrieval

1 code implementation7 Feb 2018 Thanh-Toan Do, Tuan Hoang, Dang-Khoa Le Tan, Huu Le, Tam V. Nguyen, Ngai-Man Cheung

In the large-scale image retrieval task, the two most important requirements are the discriminability of image representations and the efficiency in computation and storage of representations.

Image Retrieval

Compact Hash Code Learning with Binary Deep Neural Network

no code implementations8 Dec 2017 Thanh-Toan Do, Tuan Hoang, Dang-Khoa Le Tan, Anh-Dzung Doan, Ngai-Man Cheung

This design has overcome a challenging problem in some previous works: optimizing non-smooth objective functions because of binarization.

Binarization Image Retrieval

Supervised Hashing with End-to-End Binary Deep Neural Network

no code implementations24 Nov 2017 Dang-Khoa Le Tan, Thanh-Toan Do, Ngai-Man Cheung

Image hashing is a popular technique applied to large scale content-based visual retrieval due to its compact and efficient binary codes.

Image Retrieval

Deterministic Approximate Methods for Maximum Consensus Robust Fitting

1 code implementation27 Oct 2017 Huu Le, Tat-Jun Chin, Anders Eriksson, Thanh-Toan Do, David Suter

Further, our approach is naturally applicable to estimation problems with geometric residuals

SceneCut: Joint Geometric and Object Segmentation for Indoor Scenes

no code implementations21 Sep 2017 Trung Pham, Thanh-Toan Do, Niko Sünderhauf, Ian Reid

This paper presents SceneCut, a novel approach to jointly discover previously unseen objects and non-object surfaces using a single RGB-D image.

Semantic Segmentation

AffordanceNet: An End-to-End Deep Learning Approach for Object Affordance Detection

1 code implementation21 Sep 2017 Thanh-Toan Do, Anh Nguyen, Ian Reid

We propose AffordanceNet, a new deep learning approach to simultaneously detect multiple objects and their affordances from RGB images.

Affordance Detection Object Detection

Real-Time 6DOF Pose Relocalization for Event Cameras with Stacked Spatial LSTM Networks

1 code implementation22 Aug 2017 Anh Nguyen, Thanh-Toan Do, Darwin G. Caldwell, Nikos G. Tsagarakis

Our method first creates the event image from a list of events that occurs in a very short time interval, then a Stacked Spatial LSTM Network (SP-LSTM) is used to learn the camera pose.

Selective Deep Convolutional Features for Image Retrieval

1 code implementation4 Jul 2017 Tuan Hoang, Thanh-Toan Do, Dang-Khoa Le Tan, Ngai-Man Cheung

Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.

Image Retrieval

Binary Hashing with Semidefinite Relaxation and Augmented Lagrangian

no code implementations19 Jul 2016 Thanh-Toan Do, Anh-Dzung Doan, Duc-Thanh Nguyen, Ngai-Man Cheung

This paper proposes two approaches for inferencing binary codes in two-step (supervised, unsupervised) hashing.

Learning to Hash with Binary Deep Neural Network

no code implementations18 Jul 2016 Thanh-Toan Do, Anh-Dzung Doan, Ngai-Man Cheung

Our resulting optimization with these binary, independence, and balance constraints is difficult to solve.


Embedding based on function approximation for large scale image search

no code implementations23 May 2016 Thanh-Toan Do, Ngai-Man Cheung

The objective of this paper is to design an embedding method that maps local features describing an image (e. g. SIFT) to a higher dimensional representation useful for the image retrieval problem.

Image Retrieval

Discrete Hashing with Deep Neural Network

no code implementations28 Aug 2015 Thanh-Toan Do, Anh-Zung Doan, Ngai-Man Cheung

This paper addresses the problem of learning binary hash codes for large scale image search by proposing a novel hashing method based on deep neural network.

Image Retrieval

FAemb: A Function Approximation-Based Embedding Method for Image Retrieval

no code implementations CVPR 2015 Thanh-Toan Do, Quang D. Tran, Ngai-Man Cheung

The embedded vectors resulted by the function approximation process are then aggregated to form a single representation used in the image retrieval framework.

Image Retrieval

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