This literature review is about interactive videos which had recently been used more and more often. While not much research has been done on the topic, there are some interesting ideas and developments which might interest anyone who would like to look into interactive videos.
Lin Ching Chen goes through the history of the development in the interactive technology. Then, he talks about three main areas - the present situation and the future of the Interactive video technology, as well as talks about characteristics of equipment and software and how this can be used in education. Related topics, such as intelligent teaching system, student control and material design are also research. This provides some insight into the history of the tool itself and how it is evolving, together with some additional informations.
Then, is the question „where can we use it?”, Wendy E. Mackay and Glorianna Davenport analysis multimedia tools and applications. The techniques used to control the video through user's actions had been implemented in four areas of multimedia. First, the creators of documentary movies order certain movie parts, the software designers create interactive, educational environment, and finally, the researchers use tools to help them analyse and record the data, as well as present it. But, interactive video in connection with computers and games, also creates a vey powerful tool in the instructional department. This proves that the tool is versitale and can be used in so many situations. Edward A. Fox also talks about technology of interactive video, which allows full digital manipulation of the video on a standard computer or laptop. The author believes that the digital video has a lot to offer - video-conferences, video-calling as well as games and simulations, instruction for realistic and synthetic videos.
Following previous question, next is „how can we use it?”. The authors M. Mills, J. Rosen, K. Dauber, Effelsberg W, E. Hoffert and R. Pea talk about The digital interactive video exploration and reflection (Diver) system and how it lets users create virtual pathways through existing video through a virtual camera and a comment box. The user can use webDiver to publish their work and create an active collaboration. This could be a tool with a lot of potential as it allows to create virtual pathways and share those with the community.
Vamsidhar Reddy Gaddam, Michael Riegler, Ragnhild Eg, Carsten Griwodz and Pål Halvorsen talks about panoramic interactive systems. One of the problems with this type of system is the overhead which happens when transferring a full-quality panorama to a client, as only a small amout of the actual footage is used to create the virtual view. And so, this type of system should be maximised in the terms of user experience and minimising in terms of bandwidth. So in this paper, they introduce tiling - which allows different parts of panorama to be of different quality.
And finally, evaluation and critising. Michael J. Hannafin aims to evaluate existing researches in the technologies in connection with interactive videos, describe few important believes and problems related with the use of interactive video and to suggest a framework to use for researching interactive videos. Thomas C. Reevestook on the task to criticise the researches and evaluations used to asses how effective interactive videos are and proposes another, alternative ways to research, which will go beyond the standard analysis.
Seeing all this research, it is safe to say that interactive videos has a lot of potential and possibilities and the research is moving forward to find out even more benefits of it. Groups of people already started creating proper software, engines and system to support it even further.lia
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