Search Results for author: Andreas Savakis

Found 22 papers, 6 papers with code

LRP-QViT: Mixed-Precision Vision Transformer Quantization via Layer-wise Relevance Propagation

no code implementations20 Jan 2024 Navin Ranjan, Andreas Savakis

To validate and assess our approach, we employ LRP-QViT across ViT, DeiT, and Swin transformer models on various datasets.

Quantization

Unknown Sample Discovery for Source Free Open Set Domain Adaptation

no code implementations5 Dec 2023 Chowdhury Sadman Jahan, Andreas Savakis

Source-free OSDA (SF-OSDA) techniques eliminate the need to access source domain samples, but current SF-OSDA methods utilize only the known classes in the target domain for adaptation, and require access to the entire target domain even during inference after adaptation, to make the distinction between known and unknown samples.

Domain Adaptation

Continual Domain Adaptation on Aerial Images under Gradually Degrading Weather

1 code implementation2 Aug 2023 Chowdhury Sadman Jahan, Andreas Savakis

We synthesize two such gradually worsening weather conditions on real images from two existing aerial imagery datasets, generating a total of four benchmark datasets.

Test-time Adaptation

Curriculum Guided Domain Adaptation in the Dark

no code implementations2 Aug 2023 Chowdhury Sadman Jahan, Andreas Savakis

Addressing the rising concerns of privacy and security, domain adaptation in the dark aims to adapt a black-box source trained model to an unlabeled target domain without access to any source data or source model parameters.

Domain Adaptation

DeepRM: Deep Recurrent Matching for 6D Pose Refinement

no code implementations28 May 2022 Alexander Avery, Andreas Savakis

Optical flow prediction stabilizes the training process, and enforces the learning of features that are relevant to the task of pose estimation.

6D Pose Estimation Optical Flow Estimation

BAPose: Bottom-Up Pose Estimation with Disentangled Waterfall Representations

1 code implementation20 Dec 2021 Bruno Artacho, Andreas Savakis

We propose BAPose, a novel bottom-up approach that achieves state-of-the-art results for multi-person pose estimation.

Multi-Person Pose Estimation

Extreme Face Inpainting with Sketch-Guided Conditional GAN

no code implementations13 May 2021 Nilesh Pandey, Andreas Savakis

Recovering badly damaged face images is a useful yet challenging task, especially in extreme cases where the masked or damaged region is very large.

Facial Inpainting Generative Adversarial Network

Grassmann Iterative Linear Discriminant Analysis with Proxy Matrix Optimization

no code implementations16 Apr 2021 Navya Nagananda, Breton Minnehan, Andreas Savakis

Linear Discriminant Analysis (LDA) is commonly used for dimensionality reduction in pattern recognition and statistics.

Dimensionality Reduction

SiamReID: Confuser Aware Siamese Tracker with Re-identification Feature

no code implementations8 Apr 2021 Abu Md Niamul Taufique, Andreas Savakis, Michael Braun, Daniel Kubacki, Ethan Dell, Lei Qian, Sean M. O'Rourke

Siamese deep-network trackers have received significant attention in recent years due to their real-time speed and state-of-the-art performance.

Object Object Tracking

Benchmarking Deep Trackers on Aerial Videos

no code implementations24 Mar 2021 Abu Md Niamul Taufique, Breton Minnehan, Andreas Savakis

In recent years, deep learning-based visual object trackers have achieved state-of-the-art performance on several visual object tracking benchmarks.

Attribute Benchmarking +2

Automatic Quantification of Facial Asymmetry using Facial Landmarks

no code implementations20 Mar 2021 Abu Md Niamul Taufique, Andreas Savakis, Jonathan Leckenby

Motion is computed and compared between the left and the right parts of each region of interest to estimate the symmetry score.

Optical Flow Estimation

Visualization of Deep Transfer Learning In SAR Imagery

no code implementations20 Mar 2021 Abu Md Niamul Taufique, Navya Nagananda, Andreas Savakis

Synthetic Aperture Radar (SAR) imagery has diverse applications in land and marine surveillance.

Transfer Learning

ConDA: Continual Unsupervised Domain Adaptation

no code implementations19 Mar 2021 Abu Md Niamul Taufique, Chowdhury Sadman Jahan, Andreas Savakis

Our results on three popular DA datasets demonstrate that our method outperforms many existing state-of-the-art DA methods with access to the entire target domain during adaptation.

Management Unsupervised Domain Adaptation

OmniPose: A Multi-Scale Framework for Multi-Person Pose Estimation

1 code implementation18 Mar 2021 Bruno Artacho, Andreas Savakis

We propose OmniPose, a single-pass, end-to-end trainable framework, that achieves state-of-the-art results for multi-person pose estimation.

LABNet: Local Graph Aggregation Network with Class Balanced Loss for Vehicle Re-Identification

no code implementations29 Nov 2020 Abu Md Niamul Taufique, Andreas Savakis

Vehicle re-identification is an important computer vision task where the objective is to identify a specific vehicle among a set of vehicles seen at various viewpoints.

Vehicle Re-Identification

UniPose: Unified Human Pose Estimation in Single Images and Videos

2 code implementations CVPR 2020 Bruno Artacho, Andreas Savakis

Our results on multiple datasets demonstrate that UniPose, with a ResNet backbone and Waterfall module, is a robust and efficient architecture for pose estimation obtaining state-of-the-art results in single person pose detection for both single images and videos.

Pose Estimation Skeleton Based Action Recognition

Waterfall Atrous Spatial Pooling Architecture for Efficient Semantic Segmentation

1 code implementation6 Dec 2019 Bruno Artacho, Andreas Savakis

We propose a new efficient architecture for semantic segmentation, based on a "Waterfall" Atrous Spatial Pooling architecture, that achieves a considerable accuracy increase while decreasing the number of network parameters and memory footprint.

Segmentation Semantic Segmentation

Poly-GAN: Multi-Conditioned GAN for Fashion Synthesis

1 code implementation5 Sep 2019 Nilesh Pandey, Andreas Savakis

We present Poly-GAN, a novel conditional GAN architecture that is motivated by Fashion Synthesis, an application where garments are automatically placed on images of human models at an arbitrary pose.

Fashion Synthesis Image Stitching +2

Cascaded Projection: End-to-End Network Compression and Acceleration

no code implementations CVPR 2019 Breton Minnehan, Andreas Savakis

We propose a data-driven approach for deep convolutional neural network compression that achieves high accuracy with high throughput and low memory requirements.

Neural Network Compression

DEFRAG: Deep Euclidean Feature Representations through Adaptation on the Grassmann Manifold

no code implementations20 Jun 2018 Breton Minnehan, Andreas Savakis

We propose a novel technique for training deep networks with the objective of obtaining feature representations that exist in a Euclidean space and exhibit strong clustering behavior.

Clustering General Classification

Anomaly Detection in Video Using Predictive Convolutional Long Short-Term Memory Networks

no code implementations1 Dec 2016 Jefferson Ryan Medel, Andreas Savakis

Automating the detection of anomalous events within long video sequences is challenging due to the ambiguity of how such events are defined.

Anomaly Detection

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