Tokenizing assets through the use of blockchain is the next big thing in digital currency markets. Securing the assets in the world of the internet is challenging as most of them can easily be copied and sold in the secondary market. Protecting the rights of the asset owner is one of the challenging research areas. NFTs (non-fungible tokens) are very useful in representing the ownership of unique items for any assets. NFTs ensure that an asset can have only one official owner at any point in time with the help of Ethereum-based blockchain network. Ethereum NFTs can ensure that no one can modify the ownership rights or copy and paste the digital assets. NFTs are a boon to the artists, musicians, and others who want to create impressive digital assets. The objective of this chapter is to take you to the world of NFTs and to explain how the NFTs are going to impact digital transactions in a bigger way in the future. This chapter covers the introduction, technical aspects, security impacts, use cases, and successful implementations of NFTs in various realms.
Augmented reality (AR) is an extension of extended reality that superimposes virtual images onto real world view. It has been implemented across a versatile range of fields including education, entertainment, military, and much more. Unlike virtual reality (VR), AR focuses on enhancing the real-world view and enriching people with a better way to display the learning content in an attractive way. AR provides content simulation and interaction which can display textual data in a more immersive way which can retain learner's concentration for longer periods of time. Technology has always helped people with disabilities. Mentally differently abled children require special attention right from their childhood. Many applications have analysed the challenges faced on a daily basis by the differently abled. Hence, AR-based learning would make their learning much more easier through the personalized and immersive platform. In the given context, this chapter analyses the use of AR in education and developed an AR-learning platform for mentally differently abled based on Unity3D and Vuforia.
In the recent years, innovations such as Augmented Reality (AR), Virtual Reality (VR), and internet of things have enhanced user experience dramatically. In general, AR is completely different from VR and provides real-time solutions to users by projecting layers of information on real-world environments. Advancements in computer-generated sensory have made the concept of believable virtual environments a reality. With the availability of such technologies, one can investigate “how these technologies can be applied beyond gaming or other useful applications” and “how further improvements can be made to allow for full digital immersion.” This chapter provides a detailed description about AR and VR, followed by interesting real-world examples of AR applications. In addition, this chapter discusses the issues and challenges faced with AR/VR with a motivation of exploring the options for improvement.
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