Search Results for author: Fabio Poiesi

Found 28 papers, 18 papers with code

IFFNeRF: Initialisation Free and Fast 6DoF pose estimation from a single image and a NeRF model

no code implementations19 Mar 2024 Matteo Bortolon, Theodore Tsesmelis, Stuart James, Fabio Poiesi, Alessio Del Bue

We introduce IFFNeRF to estimate the six degrees-of-freedom (6DoF) camera pose of a given image, building on the Neural Radiance Fields (NeRF) formulation.

Pose Estimation

Zero-Shot Point Cloud Registration

no code implementations5 Dec 2023 Weijie Wang, Guofeng Mei, Bin Ren, Xiaoshui Huang, Fabio Poiesi, Luc van Gool, Nicu Sebe, Bruno Lepri

The cornerstone of ZeroReg is the novel transfer of image features from keypoints to the point cloud, enriched by aggregating information from 3D geometric neighborhoods.

Point Cloud Registration

Open-vocabulary object 6D pose estimation

no code implementations1 Dec 2023 Jaime Corsetti, Davide Boscaini, Changjae Oh, Andrea Cavallaro, Fabio Poiesi

We introduce the new setting of open-vocabulary object 6D pose estimation, in which a textual prompt is used to specify the object of interest.

6D Pose Estimation Language Modelling +2

FreeZe: Training-free zero-shot 6D pose estimation with geometric and vision foundation models

no code implementations1 Dec 2023 Andrea Caraffa, Davide Boscaini, Amir Hamza, Fabio Poiesi

We also introduce a novel algorithm to solve ambiguous cases due to geometrically symmetric objects that is based on visual features.

6D Pose Estimation Object +1

Delving into CLIP latent space for Video Anomaly Recognition

1 code implementation4 Oct 2023 Luca Zanella, Benedetta Liberatori, Willi Menapace, Fabio Poiesi, Yiming Wang, Elisa Ricci

We tackle the complex problem of detecting and recognising anomalies in surveillance videos at the frame level, utilising only video-level supervision.

Anomaly Detection Multiple Instance Learning +1

Detect, Augment, Compose, and Adapt: Four Steps for Unsupervised Domain Adaptation in Object Detection

1 code implementation29 Aug 2023 Mohamed L. Mekhalfi, Davide Boscaini, Fabio Poiesi

Unsupervised domain adaptation (UDA) plays a crucial role in object detection when adapting a source-trained detector to a target domain without annotated data.

object-detection Object Detection +2

Compositional Semantic Mix for Domain Adaptation in Point Cloud Segmentation

1 code implementation28 Aug 2023 Cristiano Saltori, Fabio Galasso, Giuseppe Fiameni, Nicu Sebe, Fabio Poiesi, Elisa Ricci

In this study, we introduce compositional semantic mixing for point cloud domain adaptation, representing the first unsupervised domain adaptation technique for point cloud segmentation based on semantic and geometric sample mixing.

Point Cloud Completion Point Cloud Segmentation +2

Survey on video anomaly detection in dynamic scenes with moving cameras

no code implementations14 Aug 2023 Runyu Jiao, Yi Wan, Fabio Poiesi, Yiming Wang

The increasing popularity of compact and inexpensive cameras, e. g.~dash cameras, body cameras, and cameras equipped on robots, has sparked a growing interest in detecting anomalies within dynamic scenes recorded by moving cameras.

Anomaly Detection Video Anomaly Detection

Revisiting Fully Convolutional Geometric Features for Object 6D Pose Estimation

1 code implementation28 Jul 2023 Jaime Corsetti, Davide Boscaini, Fabio Poiesi

Recent works on 6D object pose estimation focus on learning keypoint correspondences between images and object models, and then determine the object pose through RANSAC-based algorithms or by directly regressing the pose with end-to-end optimisations.

6D Pose Estimation 6D Pose Estimation using RGB +1

Attentive Multimodal Fusion for Optical and Scene Flow

1 code implementation28 Jul 2023 Youjie Zhou, Guofeng Mei, Yiming Wang, Fabio Poiesi, Yi Wan

This paper presents an investigation into the estimation of optical and scene flow using RGBD information in scenarios where the RGB modality is affected by noise or captured in dark environments.

PatchMixer: Rethinking network design to boost generalization for 3D point cloud understanding

1 code implementation28 Jul 2023 Davide Boscaini, Fabio Poiesi

The recent trend in deep learning methods for 3D point cloud understanding is to propose increasingly sophisticated architectures either to better capture 3D geometries or by introducing possibly undesired inductive biases.

The MONET dataset: Multimodal drone thermal dataset recorded in rural scenarios

1 code implementation11 Apr 2023 Luigi Riz, Andrea Caraffa, Matteo Bortolon, Mohamed Lamine Mekhalfi, Davide Boscaini, André Moura, José Antunes, André Dias, Hugo Silva, Andreas Leonidou, Christos Constantinides, Christos Keleshis, Dante Abate, Fabio Poiesi

MONET is different from previous thermal drone datasets because it features multimodal data, including rural scenes captured with thermal cameras containing both person and vehicle targets, along with trajectory information and metadata.

object-detection Object Detection +1

Detection-aware multi-object tracking evaluation

no code implementations16 Dec 2022 Juan C. SanMiguel, Jorge Muñoz, Fabio Poiesi

How would you fairly evaluate two multi-object tracking algorithms (i. e. trackers), each one employing a different object detector?

Multi-Object Tracking Object

1st Workshop on Maritime Computer Vision (MaCVi) 2023: Challenge Results

no code implementations24 Nov 2022 Benjamin Kiefer, Matej Kristan, Janez Perš, Lojze Žust, Fabio Poiesi, Fabio Augusto de Alcantara Andrade, Alexandre Bernardino, Matthew Dawkins, Jenni Raitoharju, Yitong Quan, Adem Atmaca, Timon Höfer, Qiming Zhang, Yufei Xu, Jing Zhang, DaCheng Tao, Lars Sommer, Raphael Spraul, Hangyue Zhao, Hongpu Zhang, Yanyun Zhao, Jan Lukas Augustin, Eui-ik Jeon, Impyeong Lee, Luca Zedda, Andrea Loddo, Cecilia Di Ruberto, Sagar Verma, Siddharth Gupta, Shishir Muralidhara, Niharika Hegde, Daitao Xing, Nikolaos Evangeliou, Anthony Tzes, Vojtěch Bartl, Jakub Špaňhel, Adam Herout, Neelanjan Bhowmik, Toby P. Breckon, Shivanand Kundargi, Tejas Anvekar, Chaitra Desai, Ramesh Ashok Tabib, Uma Mudengudi, Arpita Vats, Yang song, Delong Liu, Yonglin Li, Shuman Li, Chenhao Tan, Long Lan, Vladimir Somers, Christophe De Vleeschouwer, Alexandre Alahi, Hsiang-Wei Huang, Cheng-Yen Yang, Jenq-Neng Hwang, Pyong-Kun Kim, Kwangju Kim, Kyoungoh Lee, Shuai Jiang, Haiwen Li, Zheng Ziqiang, Tuan-Anh Vu, Hai Nguyen-Truong, Sai-Kit Yeung, Zhuang Jia, Sophia Yang, Chih-Chung Hsu, Xiu-Yu Hou, Yu-An Jhang, Simon Yang, Mau-Tsuen Yang

The 1$^{\text{st}}$ Workshop on Maritime Computer Vision (MaCVi) 2023 focused on maritime computer vision for Unmanned Aerial Vehicles (UAV) and Unmanned Surface Vehicle (USV), and organized several subchallenges in this domain: (i) UAV-based Maritime Object Detection, (ii) UAV-based Maritime Object Tracking, (iii) USV-based Maritime Obstacle Segmentation and (iv) USV-based Maritime Obstacle Detection.

Object object-detection +2

Overlap-guided Gaussian Mixture Models for Point Cloud Registration

1 code implementation17 Oct 2022 Guofeng Mei, Fabio Poiesi, Cristiano Saltori, Jian Zhang, Elisa Ricci, Nicu Sebe

Probabilistic 3D point cloud registration methods have shown competitive performance in overcoming noise, outliers, and density variations.

Point Cloud Registration

VM-NeRF: Tackling Sparsity in NeRF with View Morphing

1 code implementation9 Oct 2022 Matteo Bortolon, Alessio Del Bue, Fabio Poiesi

A well-known limitation of NeRF methods is their reliance on data: the fewer the viewpoints, the higher the likelihood of overfitting.

Data Augmentation Novel View Synthesis

Data Augmentation-free Unsupervised Learning for 3D Point Cloud Understanding

1 code implementation6 Oct 2022 Guofeng Mei, Cristiano Saltori, Fabio Poiesi, Jian Zhang, Elisa Ricci, Nicu Sebe, Qiang Wu

Unsupervised learning on 3D point clouds has undergone a rapid evolution, especially thanks to data augmentation-based contrastive methods.

3D Object Classification Contrastive Learning +3

CoSMix: Compositional Semantic Mix for Domain Adaptation in 3D LiDAR Segmentation

2 code implementations20 Jul 2022 Cristiano Saltori, Fabio Galasso, Giuseppe Fiameni, Nicu Sebe, Elisa Ricci, Fabio Poiesi

We propose a new approach of sample mixing for point cloud UDA, namely Compositional Semantic Mix (CoSMix), the first UDA approach for point cloud segmentation based on sample mixing.

3D Unsupervised Domain Adaptation Autonomous Driving +5

Loop closure detection using local 3D deep descriptors

1 code implementation31 Oct 2021 Youjie Zhou, Yiming Wang, Fabio Poiesi, Qi Qin, Yi Wan

We compare our L3D-based loop closure approach with recent approaches on LiDAR data and achieve state-of-the-art loop closure detection accuracy.

Loop Closure Detection

Learning general and distinctive 3D local deep descriptors for point cloud registration

1 code implementation21 May 2021 Fabio Poiesi, Davide Boscaini

An effective 3D descriptor should be invariant to different geometric transformations, such as scale and rotation, robust to occlusions and clutter, and capable of generalising to different application domains.

Image to Point Cloud Registration

Distinctive 3D local deep descriptors

2 code implementations1 Sep 2020 Fabio Poiesi, Davide Boscaini

We present a simple but yet effective method for learning distinctive 3D local deep descriptors (DIPs) that can be used to register point clouds without requiring an initial alignment.

Point Cloud Registration

Novel-View Human Action Synthesis

1 code implementation6 Jul 2020 Mohamed Ilyes Lakhal, Davide Boscaini, Fabio Poiesi, Oswald Lanz, Andrea Cavallaro

We first estimate the 3D mesh of the target body and transfer the rough textures from the 2D images to the mesh.

Novel View Synthesis Video Generation

Multi-view data capture using edge-synchronised mobiles

no code implementations7 May 2020 Matteo Bortolon, Paul Chippendale, Stefano Messelodi, Fabio Poiesi

We have designed an edge computing unit that supervises the relaying of timing triggers to and from multiple mobiles, in addition to synchronising frame harvesting.

3D Reconstruction Edge-computing

3D Shape Segmentation with Geometric Deep Learning

no code implementations2 Feb 2020 Davide Boscaini, Fabio Poiesi

The semantic segmentation of 3D shapes with a high-density of vertices could be impractical due to large memory requirements.

Segmentation Semantic Segmentation

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