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The paper presents a method for authenticating images that were shot using a mobile phone. Thanks to the newest advances in integrated cameras, smartphones represent one of the most popular ways to take a photograph. A picture could be critical evidence in a trial and, with the abundance of free editing software, a forgery is easy to achieve. A method to secure and test photographs for authenticity was developed, implemented as a mobile application, tested and detailed in this paper. The watermarking algorithm is ...

The paper consists of a method to implement a control system algorithm for an inertia wheel inverted pendulum. Like any control system application, the transfer function of the plant should be known in order to design the proper controller. The key point of this paper is that the behaviour of the plant is consider unknown, so a system identification should be done at first. Even if the classical way to obtain the transfer function is by writing the physical equations, the result obtained from system identification...