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Sociedade Brasileira de Telecomunicações

2010 - VII International Telecommunications Symposium

Facial Landmarks Detection Based on Correlation Filters

The problem of locating facial landmarks is important in many applications such as security, 3D modeling and expression recognition. In this paper, we prese...

SBrT 2010

Close Approximations for Daublets and their Spectra

This paper offers a new regard on compactly supported wavelets derived from FIR filters. Although being continuous wavelets, analytical formulation are lac...

SBrT 2010

Optimal Policy for Initial Selection Radio Access Technology in Next Generation Wireless Networks

In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (R...

SBrT 2010

Applying Markov chains to calculate the probability of saturation in digital IIR filters

We propose a new method to model the effect of finite-precision arithmetic in infinite impulse response (IIR) digital filters. As an application, we use th...

SBrT 2010

An Open Source HMM-based Text-to-Speech System for Brazilian Portuguese

Text-to-speech (TTS) is currently a mature technology that is used in many applications. Some modules of a TTS depend on the language and, while there are m...

SBrT 2010