The purpose of this paper is investigated immersions effected by automatic movement and movement using input device in virtual reality games. We compared immersions between two versions of FPS VR game by Unity3D Engine, through questionnaire survey. The first version is FPS VR game with automatic movement system and other version is VR game with manual control movement system. And we applied representation method which generally used in arcade shooting game to VR game. In a PC or console game, a player having a higher involvement level is more immersed. However, as a result of a comparison in the VR environment, the player is less influenced by the enthusiasm through head tracking even if the player does not move by the automatic moving system. An input device that is not suitable for the environment is a big obstacle to immersing in the game. That is, automatic movement system is also suitable for VR game system within the framework of immersion. This result can be applied to other games in various genres, also can be helpful to various directing in game.

Legally item trading is prohibited, but in fact has been made. Transactions between individuals can be a problem with the reliability of the transaction. Game item sales between individuals than through the intermediary site is due to legal vulnerable. Game operators may prohibit item trading through the terms and conditions. Because the interrupt transaction item game stable operation. The point at which conflict gamers and game operators. Reliability of trading, is time to review the policy on such items secured transactions tax. The game operators to review the legal way to providing a system for mediating in the game.

Since the invention of Oculus, consumers have experienced high level of immersion and the sense of reality at lower cost. It greatly increased virtual reality contents, and horror games are being loved as well. In this study, a brain-wave analysis was used to investigate the impact of hostile objects on the player's immersion, in a horror game where the sense of immersion is maximized using an Oculus Rift, a type of Head-Mounted Display(HMD) equipment. Paired t-test was conducted in order to verify if the difference of the immersion level between two games is meaningful. The result was that the difference of attention was statistically meaningful, whereas that of meditation was not. Also, experiments were performed to investigate the correlation between the moving speed of hostile objects and the player's immersion.

The purpose of this study was to examine the effects of adolescents’ game usage on game addiction and the mediation effects of withdrawal symptoms and loss of control. The subjects of the study was 6,499 elementary, middle and high school students included in the panel data from the survey conducted by The National Youth Policy Institute. For data analysis, SPSS WIN 21 and AMOS 21 programs were used to test the structural equation model by examining the relationships among game usage, withdrawal symptoms, loss of control, and game addiction. The results are as followings. First, adolescents’ average daily game playing hours and average daily game playing hours on holidays caused withdrawal symptoms and loss of control, increasing the possibility of game addiction. However, the relationship between the number of years of playing games and game addiction was not mediated by withdrawal symptoms and loss of control. This implies that playing computer games from young age does not necessarily lead to game addiction unless the students show withdrawal symptoms or lose control.

When a game was developed, it is impossible to predict the success of the game. Most game developers made a game play test stage in game development process. It is important factor that gamer have good emotion playing the game. There are many ways of gamer's emotion test such questionnaire suvey, EEG test and etc.. but their tests are hard to quantify the results. Gamer's emotion are evolveing according to playing the game. Gamer's emotions are one of important criteria that is used for choosing a game by gamers. Nevertheless, the emotion detection is not considered for play test, because of the difficulty. The emotions of each gamers are different because of their own skills, experiences, preferences, etc. In recent years, the emotion detection technology is evolved, but it is not enough to guarantee the accuracy. In this paper, we propose a hybrid emotion classification system by EEG(Electroencephalogram) test, questionnaire suvey and eyetracking.

Finding a head of a person in a scene is very important for taking a well composed picture by a robot photographer because it depends on the position of the head. So in this paper, we propose a robust head tracking algorithm using a hybrid of an omega shape tracker and local binary pattern (LBP) AdaBoost face detector for the robot photographer to take a fine picture automatically. Face detection algorithms have good performance in terms of finding frontal faces, but it is not the same for rotated faces. In addition, when the face is occluded by a hat or hands, it has a hard time finding the face. In order to solve this problem, the omega shape tracker based on active shape model (ASM) is presented. The omega shape tracker is robust to occlusion and illumination change. However, when the environment is dynamic, such as when people move fast and when there is a complex background, its performance is unsatisfactory. Therefore, a method combining the face detection algorithm and the omega shape tracker by probabilistic method using histograms of oriented gradient (HOG) descriptor is proposed in this paper, in order to robustly find human head. A robot photographer was also implemented to abide by the 'rule of thirds' and to take photos when people smile.