A Low-Cost Full Body Tracking System in Virtual Reality Based on Microsoft Kinect

We present an approach based on a natural user interface and virtual reality that allows the user’s body to be visualized and tracked inside a virtual environment. Our aim is to improve the sensation of virtual reality immersion through low-cost technology such as HTC Vive and Microsoft Kinect 2. The system has been developed using the Unity 3D game engine and C# language. Our approach has been validated through the implementation of an application for 3D mesh painting where the user is able to interact through hand gestures to select a color from the 3D color palette, rotate the 3D mesh and paint it

Security and blockchain convergence with internet of multimedia things : current trends, research challenges and future directions

The Internet of Multimedia Things (IoMT) orchestration enables the integration of systems, software, cloud, and smart sensors into a single platform. The IoMT deals with scalar as well as multimedia data. In these networks, sensor-embedded devices and their data face numerous challenges when it comes to security. In this paper, a comprehensive review of the existing literature for IoMT is presented in the context of security and blockchain. The latest literature on all three aspects of security, i.e., authentication, privacy, and trust is provided to explore the challenges experienced by multimedia data. The convergence of blockchain and IoMT along with multimedia-enabled blockchain platforms are discussed for emerging applications. To highlight the significance of this survey, large-scale commercial projects focused on security and blockchain for multimedia applications are reviewed. The shortcomings of these projects are explored and suggestions for further improvement are provided. Based on the aforementioned discussion, we present our own case study for healthcare industry: a theoretical framework having security and blockchain as key enablers. The case study reflects the importance of security and blockchain in multimedia applications of healthcare sector. Finally, we discuss the convergence of emerging technologies with security, blockchain and IoMT to visualize the future of tomorrow's applications. © 2020 Elsevier Lt