Search Results for author: Hieu Le

Found 27 papers, 9 papers with code

Insight Gained from Migrating a Machine Learning Model to Intelligence Processing Units

no code implementations16 Apr 2024 Hieu Le, Zhenhua He, Mai Le, Dhruva K. Chakravorty, Lisa M. Perez, Akhil Chilumuru, Yan Yao, Jiefu Chen

The discoveries in this paper show that Intelligence Processing Units (IPUs) offer a viable accelerator alternative to GPUs for machine learning (ML) applications within the fields of materials science and battery research.

Enabling Uncertainty Estimation in Iterative Neural Networks

no code implementations25 Mar 2024 Nikita Durasov, Doruk Oner, Jonathan Donier, Hieu Le, Pascal Fua

Turning pass-through network architectures into iterative ones, which use their own output as input, is a well-known approach for boosting performance.

Bayesian Optimization Out-of-Distribution Detection +1

Zero-Shot Object Counting with Language-Vision Models

no code implementations22 Sep 2023 Jingyi Xu, Hieu Le, Dimitris Samaras

Thus, we propose zero-shot object counting (ZSC), a new setting where only the class name is available during test time.

Object Object Counting

Grasp-Anything: Large-scale Grasp Dataset from Foundation Models

1 code implementation18 Sep 2023 An Dinh Vuong, Minh Nhat Vu, Hieu Le, Baoru Huang, Binh Huynh, Thieu Vo, Andreas Kugi, Anh Nguyen

Foundation models such as ChatGPT have made significant strides in robotic tasks due to their universal representation of real-world domains.

Robotic Grasping World Knowledge

Enforcing Topological Interaction between Implicit Surfaces via Uniform Sampling

no code implementations16 Jul 2023 Hieu Le, Nicolas Talabot, Jiancheng Yang, Pascal Fua

Further, we show that our proposed method can be used to simulate various ways a hand can interact with an arbitrary object.

3D Reconstruction Object

Learning from Pseudo-labeled Segmentation for Multi-Class Object Counting

no code implementations15 Jul 2023 Jingyi Xu, Hieu Le, Dimitris Samaras

In this paper, we point out that the task of counting objects of interest when there are multiple object classes in the image (namely, multi-class object counting) is particularly challenging for current object counting models.

Object Object Counting +1

Hierarchical Autoencoder-based Lossy Compression for Large-scale High-resolution Scientific Data

1 code implementation9 Jul 2023 Hieu Le, Hernan Santos, Jian Tao

Our model achieves a compression ratio of 140 on several benchmark data sets without compromising the reconstruction quality.

Generating Features with Increased Crop-related Diversity for Few-Shot Object Detection

no code implementations CVPR 2023 Jingyi Xu, Hieu Le, Dimitris Samaras

To mitigate this issue, we propose a novel variational autoencoder (VAE) based data generation model, which is capable of generating data with increased crop-related diversity.

Few-Shot Object Detection object-detection

Zero-shot Object Counting

1 code implementation CVPR 2023 Jingyi Xu, Hieu Le, Vu Nguyen, Viresh Ranjan, Dimitris Samaras

By applying this model to all the candidate patches, we can select the most suitable patches as exemplars for counting.

Object Object Counting +1

ZigZag: Universal Sampling-free Uncertainty Estimation Through Two-Step Inference

no code implementations21 Nov 2022 Nikita Durasov, Nik Dorndorf, Hieu Le, Pascal Fua

Sampling-free approaches can be faster but suffer from other drawbacks, such as lower reliability of uncertainty estimates, difficulty of use, and limited applicability to different types of tasks and data.

Vocal Bursts Valence Prediction

EmbryosFormer: Deformable Transformer and Collaborative Encoding-Decoding for Embryos Stage Development Classification

1 code implementation7 Oct 2022 Tien-Phat Nguyen, Trong-Thang Pham, Tri Nguyen, Hieu Le, Dung Nguyen, Hau Lam, Phong Nguyen, Jennifer Fowler, Minh-Triet Tran, Ngan Le

The transformer expanding path models the temporal coherency between embryo images to ensure monotonic non-decreasing constraint and is optimized by a segmentation head.

Generating Representative Samples for Few-Shot Classification

1 code implementation CVPR 2022 Jingyi Xu, Hieu Le

To mitigate this issue, we propose to generate visual samples based on semantic embeddings using a conditional variational autoencoder (CVAE) model.

Few-Shot Learning General Classification

AutoFR: Automated Filter Rule Generation for Adblocking

1 code implementation25 Feb 2022 Hieu Le, Salma Elmalaki, Athina Markopoulou, Zubair Shafiq

AutoFR is effective: it generates filter rules that can block 86% of the ads, as compared to 87% by EasyList, while achieving comparable visual breakage.

Blocking

Corrupting Data to Remove Deceptive Perturbation: Using Preprocessing Method to Improve System Robustness

no code implementations5 Jan 2022 Hieu Le, Hans Walker, Dung Tran, Peter Chin

Although deep neural networks have achieved great performance on classification tasks, recent studies showed that well trained networks can be fooled by adding subtle noises.

Denoising

Temporal Feature Warping for Video Shadow Detection

no code implementations29 Jul 2021 Shilin Hu, Hieu Le, Dimitris Samaras

The current video shadow detection method achieves this goal via co-attention, which mostly exploits information that is temporally coherent but is not robust in detecting moving shadows and small shadow regions.

Optical Flow Estimation Shadow Detection

Physics-based Shadow Image Decomposition for Shadow Removal

2 code implementations23 Dec 2020 Hieu Le, Dimitris Samaras

Inspired by physical models of shadow formation, we use a linear illumination transformation to model the shadow effects in the image that allows the shadow image to be expressed as a combination of the shadow-free image, the shadow parameters, and a matte layer.

Shadow Removal

From Shadow Segmentation to Shadow Removal

no code implementations ECCV 2020 Hieu Le, Dimitris Samaras

Our method achieves competitive shadow removal results compared to state-of-the-art methods that are trained with fully paired shadow and shadow-free images.

Segmentation Shadow Removal

Shadow Removal via Shadow Image Decomposition

3 code implementations ICCV 2019 Hieu Le, Dimitris Samaras

Training our model on this new augmented ISTD dataset further lowers the RMSE on the shadow area to 7. 4.

Shadow Removal

Weakly Labeling the Antarctic: The Penguin Colony Case

no code implementations8 May 2019 Hieu Le, Bento Gonçalves, Dimitris Samaras, Heather Lynch

This segmentation network is trained with a specific loss function, based on the average activation, to effectively learn from the data with the weakly-annotated labels.

Segmentation Semantic Segmentation

A+D Net: Training a Shadow Detector with Adversarial Shadow Attenuation

1 code implementation ECCV 2018 Hieu Le, Tomas F. Yago Vicente, Vu Nguyen, Minh Hoai, Dimitris Samaras

The A-Net modifies the original training images constrained by a simplified physical shadow model and is focused on fooling the D-Net's shadow predictions.

Detecting Shadows Shadow Detection

Geodesic Distance Histogram Feature for Video Segmentation

no code implementations31 Mar 2017 Hieu Le, Vu Nguyen, Chen-Ping Yu, Dimitris Samaras

This paper proposes a geodesic-distance-based feature that encodes global information for improved video segmentation algorithms.

Segmentation Superpixels +2

Efficient Video Segmentation Using Parametric Graph Partitioning

no code implementations ICCV 2015 Chen-Ping Yu, Hieu Le, Gregory Zelinsky, Dimitris Samaras

Video segmentation is the task of grouping similar pixels in the spatio-temporal domain, and has become an important preprocessing step for subsequent video analysis.

Clustering Computational Efficiency +4

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