Search Results for author: Otávio A. B. Penatti

Found 6 papers, 2 papers with code

Human activity recognition from mobile inertial sensors using recurrence plots

no code implementations5 Dec 2017 Otávio A. B. Penatti, Milton F. S. Santos

In this paper, we present an approach for human activity recognition based on inertial sensors by employing recurrence plots (RP) and visual descriptors.

General Classification Human Activity Recognition +1

Bag of Attributes for Video Event Retrieval

no code implementations18 Jul 2016 Leonardo A. Duarte, Otávio A. B. Penatti, Jurandy Almeida

This model is used to map low-level frame vectors into high-level vectors (e. g., classifier probability scores).


Towards Better Exploiting Convolutional Neural Networks for Remote Sensing Scene Classification

1 code implementation4 Feb 2016 Keiller Nogueira, Otávio A. B. Penatti, Jefersson A. dos Santos

We present an analysis of three possible strategies for exploiting the power of existing convolutional neural networks (ConvNets) in different scenarios from the ones they were trained: full training, fine tuning, and using ConvNets as feature extractors.

General Classification Scene Classification

Semantic Diversity versus Visual Diversity in Visual Dictionaries

no code implementations20 Nov 2015 Otávio A. B. Penatti, Sandra Avila, Eduardo Valle, Ricardo da S. Torres

Results for image classification show that as visual dictionaries are based on low-level visual appearances, visual diversity is more important than semantic diversity.

General Classification Image Classification +1

Bag of Genres for Video Retrieval

no code implementations30 May 2015 Leonardo A. Duarte, Otávio A. B. Penatti, Jurandy Almeida

The Bag of Genres video vector contains a summary of the activations of each genre in the video content.

Retrieval Video Retrieval

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