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Erickson R. Nascimento

8 accepted papers

2024

XFeat: Accelerated Features for Lightweight Image Matching

CVPR 2024poster

We introduce a lightweight and accurate architecture for resource-efficient visual correspondence. Our method dubbed XFeat (Accelerated Features) revisits fundamental design choices in convolutional neural networks for detecting extracting and matching local features. Our new model satisfies a criti…

Cited by 53SourcePDFScholar
2023

Enhancing Deformable Local Features by Jointly Learning To Detect and Describe Keypoints

CVPR 2023poster

Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more complicated effects such as non-rigid deformations. Furthermore,…

2021

Anytime Fault-tolerant Adaptive Routing for Multi-Robot Teams

ICRA 2021poster

The Correlated Team Orienteering Problem (CTOP) is a routing problem where the objective is to determine a set of routes that maximizes the summation of collected rewards in the environment while respecting the vehicles’ budget. However, solutions to this problem usually consider static instances an…

Cited by 4SourceScholar
2019

GEOBIT: A Geodesic-Based Binary Descriptor Invariant to Non-Rigid Deformations for RGB-D Images

ICCV 2019poster

At the core of most three-dimensional alignment and tracking tasks resides the critical problem of point correspondence. In this context, the design of descriptors that efficiently and uniquely identifies keypoints, to be matched, is of central importance. Numerous descriptors have been developed fo…

Cited by 12PDFScholar
2019

On Modeling the Effects of Auditory Annoyance on Driving Style and Passenger Comfort

IROS 2019poster

Despite the impressive progress being made in autonomous vehicles, human drivers will remain ubiquitous in the imminent years. Therefore, intelligent hybrid vehicular systems must be aware of the interactions between humans and the environment (e.g., sound, vibration, speed, etc.). In this paper, we…

Cited by 1SourceScholar
2018

A Weighted Sparse Sampling and Smoothing Frame Transition Approach for Semantic Fast-Forward First-Person Videos

CVPR 2018poster

Thanks to the advances in the technology of low-cost digital cameras and the popularity of the self-recording culture, the amount of visual data on the Internet is going to the opposite side of the available time and patience of the users. Thus, most of the uploaded videos are doomed to be forgotten…

2016

Real-time monocular obstacle avoidance using Underwater Dark Channel Prior

IROS 2016poster

In this paper we propose a new vision-based obstacle avoidance strategy using the Underwater Dark Channel Prior (UDCP) that can be applied to any Unmanned Underwater Vehicle (UUV) equipped with a simple monocular camera and minimal on-board processing capabilities. For each incoming image, our metho…

Cited by 29SourceScholar
2015

Automatic restoration of underwater monocular sequences of images

IROS 2015poster

Underwater environments present a considerable challenge for computer vision, since water is a scattering medium with substantial light absorption characteristics which is made even more severe by turbidity. This poses significant problems for visual underwater navigation, object detection, tracking…

Cited by 31SourceScholar