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Gabriele Trivigno

11 accepted papers

2026

INSID3: Training-Free In-Context Segmentation with DINOv3

CVPR 2026

In-context segmentation (ICS) aims to segment arbitrary concepts, e.g., objects, parts, or personalized instances, given one annotated visual examples. Existing work relies on (i) fine-tuning vision foundation models (VFMs), which improves in-domain results but harms generalization, or (ii) combines

Cited by 0SourcecodeScholar
2026

MARCO: Navigating the Unseen Space of Semantic Correspondence

CVPR 2026

Recent advances in semantic correspondence rely on dual-encoder architectures, combining DINOv2 with diffusion backbones. While accurate, these billion-parameter models generalize poorly beyond training keypoints, revealing a gap between benchmark performance and real-world usability, where queried

Cited by 0SourcecodeScholar
2025

SAMWISE: Infusing Wisdom in SAM2 for Text-Driven Video Segmentation

CVPR 2025highlight

Referring Video Object Segmentation (RVOS) relies on natural language expressions to segment an object in a video clip. Existing methods restrict reasoning either to independent short clips, losing global context, or process the entire video offline, impairing their application in a streaming fashio…

2025

SANSA: Unleashing the Hidden Semantics in SAM2 for Few-Shot Segmentation

NeurIPS 2025spotlight

Few-shot segmentation aims to segment unseen categories from just a handful of annotated examples. This requires mechanisms to identify semantically related objects across images and accurately produce masks. We note that Segment Anything 2 (SAM2), with its prompt-and-propagate mechanism, provides s…

Cited by 0SourcecodeScholar
2024

JIST: Joint Image and Sequence Training for Sequential Visual Place Recognition

RA-L 2024

Visual Place Recognition aims at recognizing previously visited places by relying on visual clues, and it is used in robotics applications for SLAM and localization. Since typically a mobile robot has access to a continuous stream of frames, this task is naturally cast as a sequence-to-sequence loca

Cited by 8SourcecodeScholar
2024

Scale-Free Image Keypoints Using Differentiable Persistent Homology

ICML 2024poster

In computer vision, keypoint detection is a fundamental task, with applications spanning from robotics to image retrieval; however, existing learning-based methods suffer from scale dependency, and lack flexibility. This paper introduces a novel approach that leverages Morse theory and persistent ho…

2024

The Unreasonable Effectiveness of Pre-Trained Features for Camera Pose Refinement

CVPR 2024highlight

Pose refinement is an interesting and practically relevant research direction. Pose refinement can be used to (1) obtain a more accurate pose estimate from an initial prior (e.g. from retrieval) (2) as pre-processing i.e. to provide a better starting point to a more expensive pose estimator (3) as p…

Cited by 5SourcePDFScholar
2023

Divide&Classify: Fine-Grained Classification for City-Wide Visual Geo-Localization

ICCV 2023poster

Visual Place recognition is commonly addressed as an image retrieval problem. However, retrieval methods are impractical to scale to large datasets, densely sampled from city-wide maps, since their dimension impact negatively on the inference time. Using approximate nearest neighbour search for retr…

Cited by 14PDFcodeScholar
2023

EigenPlaces: Training Viewpoint Robust Models for Visual Place Recognition

ICCV 2023poster

Visual Place Recognition is a task that aims to predict the place of an image (called query) based solely on its visual features. This is typically done through image retrieval, where the query is matched to the most similar images from a large database of geotagged photos, using learned global des…

Cited by 87PDFcodeScholar
2022

Deep Visual Geo-Localization Benchmark

CVPR 2022oral

In this paper, we propose a new open-source benchmarking framework for Visual Geo-localization (VG) that allows to build, train, and test a wide range of commonly used architectures, with the flexibility to change individual components of a geo-localization pipeline. The purpose of this framework is…

Cited by 103PDFcodeScholar
2022

Learning Sequential Descriptors for Sequence-Based Visual Place Recognition

RA-L 2022

In robotics, visual place recognition (VPR) is a continuous process that receives as input a video stream to produce a hypothesis of the robot's current position within a map of known places. This work proposes a taxonomy of the architectures used to learn sequential descriptors for VPR, highlightin

Cited by 42SourcecodeScholar