Supervised learning is widely used in training autonomous driving vehicle. However, it is trained with large amount of supervised labeled data. Reinforcement learning can be trained without abundant labeled data, but we cannot train it in reality because it would involve many unpredictable accidents. Nevertheless, training an agent with good performance in virtual environment is relatively much...

Laparoscopic surgery, when performed by a well-trained surgeon, is a remarkably effective procedure that minimizes complications associated with large incisions, operative blood loss and post-operative pain. It also reduces the recovery time. However, the procedure is more challenging than a conventional surgery due to the restricted vision, hand-eye coordination problems, limited working space...

The virtual reality is a powerful tool to simulate the behavior of the physical systems. The visual system of a robot and its interplay with the 3D environment can be modeled and simulated through the geometrical relationships between the virtual stereo cameras and the virtual 3D world. The novelty of our approach is related to the use of the virtual reality as a tool to simulate the behavior o...

BACKGROUND AND OBJECTIVES Virtual reality has been poorly studied among gynecologic surgeons. The aim of this study was to evaluate whether performance on the Minimally Invasive Surgery Trainer-Virtual Reality (MIST-VR) laparoscopic trainer reflects laparoscopic experience among gynecologic surgeons and trainees. METHODS Twenty-six medical students, residents, and attending gynecologic surgeo...

This paper describes in detail the development and applications of a Virtual Reality Simulator for Visually Impaired People. It makes an auditory representation of the virtual environment, rendering the virtual world entirely through the hearing. The simulator has these main purposes: validation of auditory representation techniques, 3d sensor emulation for environment recognition and hardware ...

Flight simulation has always been an application which needed to be distributed in order to be computable at all. Although examples of single-processor flight simulators exist [2] they are typically simulators of low fidelity, often games. True flight simulation has extremely high fidelity demands: the virtual environment which the simulator creates must be as life-like as possible in order to ...

Multi-agent simulations, used in the field of immersive virtual environments, implement agents that reproduce human behaviors and interact with them. In this paper, we propose a generic method based on data analysis to evaluate individual agents behaviors. It uses a simulation logs clustering to extract human behaviors that serve as the reference behaviors to aggregate agents on humans clusters...