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This paper presents the use of Asterisk software for teaching telephony in Electrical Engineering and Systems of Telecommunications undergraduate courses at the Federal Institute of Education, Science and Technology of Paraíba, João Pessoa, Paraíba, Brazil. To do this, and to reproduce confidently a real world scenario, the Asterisk software was chosen because it is an open and flexible source, and...
In the present work, a similarity metric based on image difference entropy has been investigated for myocardial contrast echocardiography non-rigid registration. The image histogram size has shown to influence registration accuracy, improving results for difference entropy, which has presented better results when compared to other two well known similarity metric in literature, namely, normalized...
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