This paper investigates the impact of contradictory emotional content on people’s ability to identify the emotion expressed on avatar faces as compared to human faces. Participants saw emotional faces (human or avatar) coupled with emotional texts. The face and text could either display the same or different emotions. Participants were asked to identify the emotion on the face and in the text. ...

Captchas are challenge-response tests used in many online systems to prevent attacks by automated bots. Avatar Captchas are a recently-proposed variant in which users are asked to classify between human faces and computergenerated avatar faces, and have been shown to be secure if bots employ random guessing. We test a variety of modern object recognition and machine learning approaches on the p...

Cemil Kutlutürk’ün Hinduizm’de Avatar İnancı adlı çalışması nasıl bir Tanrı tasavvurunun geliştirilip benimsendiğinin izlerini sürmek ve beklenen kurtarıcı düşüncesiyle yakından ilişkili olan avatar inancı hakkında bilgi edinmek isteyenler için değerli çalışma olarak karşımıza çıkmaktadır.

We present IGaze, a semi-immersive human-avatar interaction system. Using head tracking and an illusionistic 3D effect we let users interact with a talking avatar in an application interview scenario. The avatar features reactive gaze behavior that adapts to the user position according to exchangeable gaze strategies. In user studies we showed that two gaze strategies successfully convey the in...

One of the most important aspects in interactive virtual environment applications is maintaining interactive frame rates while providing realistic and believable experience. Due to this fact, collision detection for interactive virtual environment applications acts as an important part of the system. However, due to its computationally intensive nature, collision detection can become a bottlene...

Novel avatar bodies are ones that are not controlled in a one-to-one relationship between the user’s body and the avatar body, for example, when the avatar’s arms are controlled by the user’s legs, or, when the avatar has a third arm. People have been shown to complete tasks more successfully when controlling novel avatar bodies than when controlling avatars that conform to the normal human con...

In order to examine the effect of an avatar in natural interaction with elderly users in ambient intelligent environments, we performed an empirical study with elderly people (normal aging, mild cognitive impairment and Alzheimer's patients) not only on subjective but also on objective measures. The data supports the following: 1) The subjects followed some instructions much better when interac...

Who do people want to be in virtual worlds? Video game players can create their avatars with characteristics similar to themselves, create a superhero that is predominantly designed to win, or chose an in-between strategy. In a quasi-experimental study, players’ strategies of avatar choice were investigated. Participants created an avatar they would like to play with for five game descriptions ...