Search Results for author: Valter Estevam

Found 8 papers, 4 papers with code

Leveraging Model Fusion for Improved License Plate Recognition

no code implementations8 Sep 2023 Rayson Laroca, Luiz A. Zanlorensi, Valter Estevam, Rodrigo Minetto, David Menotti

License Plate Recognition (LPR) plays a critical role in various applications, such as toll collection, parking management, and traffic law enforcement.

License Plate Recognition Management

Do We Train on Test Data? The Impact of Near-Duplicates on License Plate Recognition

no code implementations10 Apr 2023 Rayson Laroca, Valter Estevam, Alceu S. Britto Jr., Rodrigo Minetto, David Menotti

This work draws attention to the large fraction of near-duplicates in the training and test sets of datasets widely adopted in License Plate Recognition (LPR) research.

License Plate Recognition

Global Semantic Descriptors for Zero-Shot Action Recognition

1 code implementation24 Sep 2022 Valter Estevam, Rayson Laroca, Helio Pedrini, David Menotti

This work introduces a new ZSAR method based on the relationships of actions-objects and actions-descriptive sentences.

Action Classification Action Recognition +2

A First Look at Dataset Bias in License Plate Recognition

no code implementations23 Aug 2022 Rayson Laroca, Marcelo Santos, Valter Estevam, Eduardo Luz, David Menotti

We performed experiments on eight datasets, four collected in Brazil and four in mainland China, and observed that each dataset has a unique, identifiable "signature" since a lightweight classification model predicts the source dataset of a license plate (LP) image with more than 95% accuracy.

License Plate Recognition

On the Cross-dataset Generalization in License Plate Recognition

1 code implementation2 Jan 2022 Rayson Laroca, Everton V. Cardoso, Diego R. Lucio, Valter Estevam, David Menotti

Automatic License Plate Recognition (ALPR) systems have shown remarkable performance on license plates (LPs) from multiple regions due to advances in deep learning and the increasing availability of datasets.

Data Augmentation License Plate Detection +4

Dense Video Captioning Using Unsupervised Semantic Information

1 code implementation15 Dec 2021 Valter Estevam, Rayson Laroca, Helio Pedrini, David Menotti

We introduce a method to learn unsupervised semantic visual information based on the premise that complex events (e. g., minutes) can be decomposed into simpler events (e. g., a few seconds), and that these simple events are shared across several complex events.

Dense Video Captioning

Zero-Shot Action Recognition in Videos: A Survey

no code implementations13 Sep 2019 Valter Estevam, Helio Pedrini, David Menotti

Zero-Shot Action Recognition has attracted attention in the last years and many approaches have been proposed for recognition of objects, events and actions in images and videos.

Action Recognition In Still Images Action Recognition In Videos +2

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