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This paper presents a free hand interface for modeling virtual terrains in an augmented reality environment. A secondary contribution of this work is to present a study of a set of suitable gestures that allows the manipulation of virtual terrains interactively, using augmented reality markers and the Leap Motion Controller. To demonstrate the study, an application was developed to allow the user...
The hardware evolution had promoted amazing possibilities of interaction in virtual environments, attracting a lot of research in the most diverse fields, especially in games. In this work, we explore the animation data captured by Microsoft Kinect in real-time for developing user interaction in a virtual simulated environment. We use physically based characters with balance treatment and proportional-derivative...
With the increasing popularity and accessibility of high-quality Virtual Reality (VR) systems, concerns have been raised about the propensity of VR to induce balance loss. Balance is essential for safe use of VR experience and its loss can result in severe injury. This project is set to create a system able to measure the impact of VR in the human balance system. In this work, we design and conduct...
This work presents the development and validation of a natural interaction method in an immersive CAVE environment. The Microsoft Kinect was used to track the user actions, but only the infrared camera of the device was used, through a gesture recognition model developed by (LEITE, 2015). From such gesture recognition, a nre grammer was defined, as needed for an immersive environment such a the CAVE...
This work presents a Virtual Reality training environment for upper limb amputees. Based on principles of a serious game, the training environment aims to condition the patient to use a prosthesis before it is manufactured. Studies show that the time of adjustment for use of a real prosthesis is considerably high. This often brings immense dismay to those patients who are already psychologically depressed...
Strokes have caused physical disability in adults and even in children, all over the world. The motor deficiencies caused by stroke are characterized by paralysis or weakness on the side of the body opposite to that of the brain lesion. This Augmented Reality System developed provides visual feedback of the movement of a virtual arm for motor rehabilitation of the upper limbs. This paper presents...
The inclusion of people with disabilities in the labor market can be a difference in the quality of life of individuals, and to participate equally in society, respecting the rights and obligations is still a challenge. This article presents the development of an immersive system and the evaluation of it focusing on the empowerment of people with intellectual disabilities to labor inclusion. The research...
Virtual Reality may be considered a computational tool often used to aid in medical training, specially in surgical training. That allows surgeons to gain dexterity and experience in surgery without risking real patient lifes, reducing the probability of medical errors to occur, henceforth providing a better quality of life to patients. Due to the fragility of the human eye, more than most other areas...
Fear of flying is a real problem that affects the world's population. Approximately 25% of adults experience a significant increase in their anxiety levels when required to take any type of air transport and 10% of them avoid the situation. The approach that has proven to be the most effective in the treatment of phobias is in vivo exposure. However, the difficulty and the cost, and sometimes even...
Virtual Reality (VR) is increasingly being used as a therapeutic solution for different phobias. In this paper we describe a system that applies VR in Exposure Therapy to treat Acrophobia. Users are exposed to two Virtual Environments, which have features to reproduce different levels of anxiety. In these environments, users can navigate and interact with avatars and objects, while being monitored...
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