Search Results for author: Pierluigi Zama Ramirez

Found 24 papers, 10 papers with code

Connecting NeRFs, Images, and Text

no code implementations11 Apr 2024 Francesco Ballerini, Pierluigi Zama Ramirez, Roberto Mirabella, Samuele Salti, Luigi Di Stefano

Neural Radiance Fields (NeRFs) have emerged as a standard framework for representing 3D scenes and objects, introducing a novel data type for information exchange and storage.

Representation Learning Retrieval +1

Deep Learning on 3D Neural Fields

no code implementations20 Dec 2023 Pierluigi Zama Ramirez, Luca De Luigi, Daniele Sirocchi, Adriano Cardace, Riccardo Spezialetti, Francesco Ballerini, Samuele Salti, Luigi Di Stefano

In recent years, Neural Fields (NFs) have emerged as an effective tool for encoding diverse continuous signals such as images, videos, audio, and 3D shapes.

Multimodal Industrial Anomaly Detection by Crossmodal Feature Mapping

no code implementations7 Dec 2023 Alex Costanzino, Pierluigi Zama Ramirez, Giuseppe Lisanti, Luigi Di Stefano

The paper explores the industrial multimodal Anomaly Detection (AD) task, which exploits point clouds and RGB images to localize anomalies.

Anomaly Detection

Neural Processing of Tri-Plane Hybrid Neural Fields

1 code implementation2 Oct 2023 Adriano Cardace, Pierluigi Zama Ramirez, Francesco Ballerini, Allan Zhou, Samuele Salti, Luigi Di Stefano

While processing a field with the same reconstruction quality, we achieve task performance far superior to frameworks that process large MLPs and, for the first time, almost on par with architectures handling explicit representations.

Learning Depth Estimation for Transparent and Mirror Surfaces

no code implementations ICCV 2023 Alex Costanzino, Pierluigi Zama Ramirez, Matteo Poggi, Fabio Tosi, Stefano Mattoccia, Luigi Di Stefano

Inferring the depth of transparent or mirror (ToM) surfaces represents a hard challenge for either sensors, algorithms, or deep networks.

Monocular Depth Estimation

Deep Learning on Implicit Neural Representations of Shapes

no code implementations10 Feb 2023 Luca De Luigi, Adriano Cardace, Riccardo Spezialetti, Pierluigi Zama Ramirez, Samuele Salti, Luigi Di Stefano

Implicit Neural Representations (INRs) have emerged in the last few years as a powerful tool to encode continuously a variety of different signals like images, videos, audio and 3D shapes.

Learning Good Features to Transfer Across Tasks and Domains

no code implementations26 Jan 2023 Pierluigi Zama Ramirez, Adriano Cardace, Luca De Luigi, Alessio Tonioni, Samuele Salti, Luigi Di Stefano

Besides, we propose a set of strategies to constrain the learned feature spaces, to ease learning and increase the generalization capability of the mapping network, thereby considerably improving the final performance of our framework.

Monocular Depth Estimation Semantic Segmentation

Self-Distillation for Unsupervised 3D Domain Adaptation

no code implementations15 Oct 2022 Adriano Cardace, Riccardo Spezialetti, Pierluigi Zama Ramirez, Samuele Salti, Luigi Di Stefano

In contrast, in this work, we focus on obtaining a discriminative feature space for the target domain enforcing consistency between a point cloud and its augmented version.

Classification Point Cloud Classification +2

Cross-Spectral Neural Radiance Fields

no code implementations1 Sep 2022 Matteo Poggi, Pierluigi Zama Ramirez, Fabio Tosi, Samuele Salti, Stefano Mattoccia, Luigi Di Stefano

We propose X-NeRF, a novel method to learn a Cross-Spectral scene representation given images captured from cameras with different light spectrum sensitivity, based on the Neural Radiance Fields formulation.

RGB-Multispectral Matching: Dataset, Learning Methodology, Evaluation

no code implementations CVPR 2022 Fabio Tosi, Pierluigi Zama Ramirez, Matteo Poggi, Samuele Salti, Stefano Mattoccia, Luigi Di Stefano

We address the problem of registering synchronized color (RGB) and multi-spectral (MS) images featuring very different resolution by solving stereo matching correspondences.

Stereo Matching

Open Challenges in Deep Stereo: the Booster Dataset

no code implementations CVPR 2022 Pierluigi Zama Ramirez, Fabio Tosi, Matteo Poggi, Samuele Salti, Stefano Mattoccia, Luigi Di Stefano

We present a novel high-resolution and challenging stereo dataset framing indoor scenes annotated with dense and accurate ground-truth disparities.

Neural Disparity Refinement for Arbitrary Resolution Stereo

1 code implementation28 Oct 2021 Filippo Aleotti, Fabio Tosi, Pierluigi Zama Ramirez, Matteo Poggi, Samuele Salti, Stefano Mattoccia, Luigi Di Stefano

We introduce a novel architecture for neural disparity refinement aimed at facilitating deployment of 3D computer vision on cheap and widespread consumer devices, such as mobile phones.

Zero-shot Generalization

Shallow Features Guide Unsupervised Domain Adaptation for Semantic Segmentation at Class Boundaries

1 code implementation6 Oct 2021 Adriano Cardace, Pierluigi Zama Ramirez, Samuele Salti, Luigi Di Stefano

Although deep neural networks have achieved remarkable results for the task of semantic segmentation, they usually fail to generalize towards new domains, especially when performing synthetic-to-real adaptation.

Data Augmentation Segmentation +2

Unsupervised Novel View Synthesis from a Single Image

no code implementations5 Feb 2021 Pierluigi Zama Ramirez, Alessio Tonioni, Federico Tombari

Novel view synthesis from a single image aims at generating novel views from a single input image of an object.

Decoder Novel View Synthesis

Shooting Labels: 3D Semantic Labeling by Virtual Reality

1 code implementation11 Oct 2019 Pierluigi Zama Ramirez, Claudio Paternesi, Luca De Luigi, Luigi Lella, Daniele De Gregorio, Luigi Di Stefano

Availability of a few, large-size, annotated datasets, like ImageNet, Pascal VOC and COCO, has lead deep learning to revolutionize computer vision research by achieving astonishing results in several vision tasks. We argue that new tools to facilitate generation of annotated datasets may help spreading data-driven AI throughout applications and domains.

3D Semantic Segmentation

Exploiting Semantics in Adversarial Training for Image-Level Domain Adaptation

no code implementations13 Oct 2018 Pierluigi Zama Ramirez, Alessio Tonioni, Luigi Di Stefano

To prove the effectiveness of our proposal, we show how a semantic segmentation CNN trained on images from the synthetic GTA dataset adapted by our method can improve performance by more than 16% mIoU with respect to the same model trained on synthetic images.

Domain Adaptation Segmentation +2

Geometry meets semantics for semi-supervised monocular depth estimation

1 code implementation9 Oct 2018 Pierluigi Zama Ramirez, Matteo Poggi, Fabio Tosi, Stefano Mattoccia, Luigi Di Stefano

For unsupervised training of these models, geometry has been effectively exploited by suitable images warping losses computed from views acquired by a stereo rig or a moving camera.

Decoder Depth Prediction +2

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