Dynamic difficulty adjustment (DDA) is a technique for adaptively changing a game to make it easier or harder. A common paradigm to achieve DDA is through heuristic prediction and intervention, adjusting game difficulty once undesirable player states (e.g., boredom or frustration) are observed. Without quantitative objectives, it is impossible to optimize the strength of intervention and achiev...

Abstract In this paper, we propose a novel global motion estimation technique based on weighted gradient and Displaced Frame Difference (DFD) associated with Wiener estimation. Then, we apply this technique to parse events of a high level of understanding in a cricket game. A user oriented analysis of the game then reveals a distinct connection between the global motion and specific events. By ...

A vision based technique for nonrigid control is presented that can be used for animation and video game applications. The user grasps a soft, squishable object in front of a camera that can be moved and deformed in order to specify motion. Active Blobs, a nonrigid tracking technique is used to recover the position, rotation and nonrigid deformations of the object. The resulting transformations...

In this paper we present two frameworks that have been implemented to link traditional model-checking techniques to the domain of control. The techniques are based on solving a timed game and using the resulting solution (a strategy) as a controller. The obtained discrete controller must fit within its continuous environment, which is modelled and taken care of in our frameworks. Our first tech...

First-order (i.e., gradient-based) methods for solving two-person zero-sum sequential games of imperfect information have recently become important tools in the construction of game theory-based agents. The computation time per iteration is typically dominated by matrix-vector product operations involving the payoff matrix A. In this paper, we describe two techniques for scaling up this operati...

Early in 1990, virtual reality technique based on computer graphics was introduced in internal computer engineering. This virtual reality is appeared technology that set a trend to develop product and environment focused on human. This paper introduces the trend and feature through case studies about the game contents system for immersive interaction among these virtual reality techniques. More...

We prove NP-hardness of pure Nash equilibrium for some problems of scheduling games and connection games. The technique is standard: first, we construct a gadget without the desired property and then embed it to a larger game which encodes a NP-hard problem in order to prove the complexity of the desired property in a game. This technique is very efficient in proving NP-hardness for deciding th...

Mixed sounds can be separated from multiple sound sources by utilizing a microphone array and signal processing. We believe that promotion of interest in this technique can lead to significant developments in future science and technology. Consequently, in order to experience this technique, we designed a language game for children called “KIKIWAKE 3D” that uses a sound source separation system...

Esports has gained global popularity in recent years and several companies have started offering live streaming videos of esports games and events. This creates opportunities to develop large scale video understanding systems for new product features and services. We present a technique for detecting highlights from live streaming videos of esports game matches. Most video games use pronounced ...