Sistema de Videocolaboração interoperável entre webconferência e endpoints de videoconferência

The purpose of this paper is to present advances in the Mconf web conferencing system to support transparent interoperability with room videoconferencing equipment (known as endpoints), Multipresence system, and Phone@RNP. The system can behave as SFU (Switching Forwarding Unit) or MCU (Multipoint Control Unit), making decisions about the best signal to send to each destination. The following main benefits can be cited: 1) Improving user interaction in the use of such systems, so that it simply enters the portal “Video Collaboration Service”, and the system make the necessary adaptations to obtain the best user experience; 2) Have a single MCU + SFU service, savings resources, as it concentrates programmers on the same code.

MCU em software distribuído em nuvem

The presented tool is a fully virtualized videoconferencing MCU (Multipoint Control Unit) system using the standard SIP (Session Initiation Protocol). The proposed tool works in the cloud in a scalable way, with low deployment and maintenance costs. In addition, the proposed tool is more than an MCU, functioning as a universal framework for media forwarding.

A Novel Multi-Level Security Technique Based on IRIS Image Encoding

Providing highly secured access to restricted or private areas has become highly required these days, mainly due to terrorism threats. One method of security is no longer sufficient, hence the term and technology of a “multi-level” security system was developed by integrating more than one security procedure, on both hardware and software levels. This research provides a simple, cheap, easily achievable, yet highly secured multi-level security system to control access through doors. The system integrates IRIS scan authentication, innovative IRIS image encoding, encrypted of mobile communication, and multipoint Control Unit (MCU) Security as main procedures of security. The system’s novelty shows in the encoding and encryption of IRIS image data that is acquired by a mobile phone before it is sent to the authentication site, where it is decrypted by a cheap and fast MCU to retrieve the IRIS image that is fed into a Neural Network in order to grant authorization to the user.