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Sociedade Brasileira de Telecomunicações

FPGA implementation of a de-noising using Haar level 5 wavelet transform

This paper proposes an implementation in Field Programmable Gate Array (FPGA) of a de-noising using Haar wavelet transform. For this a signal with noise wa...

SBrT 2017

Analyzing the Propagation Features of the Texas eZ430-RF2500 Device

The Texas eZ430-RF2500 is a new device developed for wireless networking applications. This paper analyzes the propagation features of this device for the ...

SBrT 2010

Evaluation of Image Color Metrics for Watermarked Color Images

This paper presents a comparative study of performance metrics applied to color images with invisible digital watermark. The imperceptibility of the waterm...

SBrT 2013

An In-Field Calibration Method based on Performance-Surface for the Multiresolution Bilateral Filter Applied to X-Ray Images

Several spatial filters applied to images are available in technical and scientific literature. Besides the reduction of the noise level, some of them also...

SBrT 2013

Esquema de Codificação Turbo Quaternária aplicada em Comunicação Cooperativa

Zelmann Strobel Penze ,Renato Baldini Filho

SBrT 2013