Foveated Video Streaming for Cloud Gaming

Good user experience with interactive cloud-based multimedia applications, such as cloud gaming and cloud-based VR, requires low end-to-end latency and large amounts of downstream network bandwidth at the same time. In this paper, we present a foveated video streaming system for cloud gaming. The system adapts video stream quality by adjusting the encoding parameters on the fly to match the player's gaze position. We conduct measurements with a prototype that we developed for a cloud gaming system in conjunction with eye tracker hardware. Evaluation results suggest that such foveated streaming can reduce bandwidth requirements by even more than 50% depending on parametrization of the foveated video coding and that it is feasible from the latency perspective.Comment: Submitted to: IEEE 19th International Workshop on Multimedia Signal Processin

Cue usage in volleyball : a time course comparison of elite, intermediate and novice female players

This study compared visual search strategies in adult female volleyball players of three levels. Video clips of the attack of the opponent team were presented on a large screen and participants reacted to the final pass before the spike. Reaction time, response accuracy and eye movement patterns were measured. Elite players had the highest response accuracy (97.50 ± 3.5%) compared to the intermediate (91.50 ± 4.7%) and novice players (83.50 ± 17.6%; p<0.05). Novices had a remarkably high range of reaction time but no significant differences were found in comparison to the reaction time of elite and intermediate players. In general, the three groups showed similar gaze behaviour with the apparent use of visual pivots at moments of reception and final pass. This confirms the holistic model of image perception for volleyball and suggests that expert players extract more information from parafoveal regions

Game-based learning or game-based teaching?

Emerging technologies for learning report - Article exploring games based learning and its potential for edcuatio

E Is for Everyone: The Case for Inclusive Game Design

Part of the Volume on the Ecology of Games: Connecting Youth, Games, and Learning In this chapter I examine the accessibility of today's games, or rather the lack of. Even common medical conditions such as arthritis, repetitive stress injuries, and diminished vision may prevent individuals from playing today's top software titles, not to speak of the barriers that these titles pose to the blind, deaf, and immobile. The clearest and most disheartening manifestation can be found when examining the special-needs sector. There we find children who cannot partake in their most coveted play activities, due to inconsiderate (and therefore inflexible) game design. I chose this sector to both define the problem and explore its solutions. Written from the perspective of a designer, the chapter first describes the lack-of-play and its residual impact as perceived in a school that caters to over 200 children with special needs. In an attempt to create the "ultimate-accessible" game, I demonstrate how games can be designed to be intrinsically accessible while retaining their original playability. Lastly, I show how normalization-of-play may improve upon the social, educational, and therapeutic aspects of the children's daily lives. Tying this fringe-case with the grander ecology of games, I discusses how better accessibility may encourage more people to enjoy games -- be they gamers, students, or patients