Search Results for author: Luiz E. S. Oliveira

Found 8 papers, 1 papers with code

Two-View Fine-grained Classification of Plant Species

no code implementations18 May 2020 Voncarlos M. Araujo, Alceu S. Britto Jr., Luiz E. S. Oliveira, Alessandro L. Koerich

Automatic plant classification is a challenging problem due to the wide biodiversity of the existing plant species in a fine-grained scenario.

Classification General Classification +1

An End-to-End Approach for Recognition of Modern and Historical Handwritten Numeral Strings

no code implementations28 Mar 2020 Andre G. Hochuli, Alceu S. Britto Jr., Jean P. Barddal, Luiz E. S. Oliveira, Robert Sabourin

An end-to-end solution for handwritten numeral string recognition is proposed, in which the numeral string is considered as composed of objects automatically detected and recognized by a YoLo-based model.

Segmentation

Data Augmentation for Histopathological Images Based on Gaussian-Laplacian Pyramid Blending

no code implementations31 Jan 2020 Steve Tsham Mpinda Ataky, Jonathan de Matos, Alceu de S. Britto Jr., Luiz E. S. Oliveira, Alessandro L. Koerich

Such a problem is troublesome because most of the ML algorithms attempt to optimize a loss function that does not take into account the data imbalance.

Data Augmentation

Double Transfer Learning for Breast Cancer Histopathologic Image Classification

no code implementations16 Apr 2019 Jonathan de Matos, Alceu de S. Britto Jr., Luiz E. S. Oliveira, Alessandro L. Koerich

This work proposes a classification approach for breast cancer histopathologic images (HI) that uses transfer learning to extract features from HI using an Inception-v3 CNN pre-trained with ImageNet dataset.

Classification General Classification +2

Histopathologic Image Processing: A Review

no code implementations16 Apr 2019 Jonathan de Matos, Alceu de Souza Britto Jr., Luiz E. S. Oliveira, Alessandro L. Koerich

In this work we present a literature review about the computing techniques to process HI, including shallow and deep methods.

Segmentation-Free Approaches for Handwritten Numeral String Recognition

no code implementations24 Apr 2018 Andre G. Hochuli, Luiz E. S. Oliveira, Alceu S. Britto Jr, Robert Sabourin

This paper presents segmentation-free strategies for the recognition of handwritten numeral strings of unknown length.

Segmentation

A Classifier-free Ensemble Selection Method based on Data Diversity in Random Subspaces

no code implementations13 Aug 2014 Albert H. R. Ko, Robert Sabourin, Alceu S. Britto Jr, Luiz E. S. Oliveira

Our scheme is the first ensemble selection method to be presented in the literature based on the concept of data diversity.

Clustering

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