Search Results for author: Sérgio Colcher

Found 9 papers, 0 papers with code

Building a Noisy Audio Dataset to Evaluate Machine Learning Approaches for Automatic Speech Recognition Systems

no code implementations4 Oct 2021 Julio Cesar Duarte, Sérgio Colcher

Automatic speech recognition systems are part of people's daily lives, embedded in personal assistants and mobile phones, helping as a facilitator for human-machine interaction while allowing access to information in a practically intuitive way.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

A Clustering-Based Method for Automatic Educational Video Recommendation Using Deep Face-Features of Lecturers

no code implementations9 Oct 2020 Paulo R. C. Mendes, Eduardo S. Vieira, Álan L. V. Guedes, Antonio J. G. Busson, Sérgio Colcher

Discovering and accessing specific content within educational video bases is a challenging task, mainly because of the abundance of video content and its diversity.

Clustering Face Clustering +3

Video Quality Enhancement Using Deep Learning-Based Prediction Models for Quantized DCT Coefficients in MPEG I-frames

no code implementations9 Oct 2020 Antonio J G Busson, Paulo R C Mendes, Daniel de S Moraes, Álvaro M da Veiga, Álan L V Guedes, Sérgio Colcher

Recent works have successfully applied some types of Convolutional Neural Networks (CNNs) to reduce the noticeable distortion resulting from the lossy JPEG/MPEG compression technique.

Seismic Shot Gather Noise Localization Using a Multi-Scale Feature-Fusion-Based Neural Network

no code implementations7 May 2020 Antonio José G. Busson, Sérgio Colcher, Ruy Luiz Milidiú, Bruno Pereira Dias, André Bulcão

Herein, we describe the following: (1) the construction of a real-world dataset of seismic noise localization based on 6, 500 seismograms; (2) a multi-scale feature-fusion-based detector that uses the MobileNet combined with the Feature Pyramid Net as the backbone; and (3) the Single Shot multi-box detector for box classification/regression.

A Multimodal CNN-based Tool to Censure Inappropriate Video Scenes

no code implementations10 Nov 2019 Pedro V. A. de Freitas, Paulo R. C. Mendes, Gabriel N. P. dos Santos, Antonio José G. Busson, Álan Livio Guedes, Sérgio Colcher, Ruy Luiz Milidiú

More than telling if a video is either appropriate or inappropriate, it is also important to identify which parts of it contain such content, for preserving parts that would be discarded in a simple broad analysis.

Cannot find the paper you are looking for? You can Submit a new open access paper.