scholarly journals Hole Concealment Algorithm Using Camera Parameters in Stereo 360 Virtual Reality System

2021 ◽  
Vol 11 (5) ◽  
pp. 2033
Author(s):  
Sangguk Cha ◽  
Da-Yoon Nam ◽  
Jong-Ki Han
Keyword(s):  
Virtual Reality ◽  
Virtual Reality System ◽  
Camera Parameters

Virtual reality (VR) has been one of the most important topics in the field of multimedia signals and systems for approximately 10 years [...]

Development of a Lower Limb Tracking Flexion/Extension Virtual Reality System

2015 ◽  
Vol 9 (6) ◽  
pp. 600
Author(s):  
Sergio Valdivia-Trujillo ◽  
Eliana Prada-Dominguez ◽  
Estefania Ramos-Montilla ◽  
Alvaro Joffre Uribe-Quevedo
Keyword(s):  
Virtual Reality ◽  
Lower Limb ◽  
Virtual Reality System ◽  
Flexion Extension

Virtual Reality System for Industrial Motor Maintenance Training

2020 ◽  
Author(s):  
Taina Ribeiro de Oliveira ◽  
Tiago Fonseca Martinelli ◽  
Bianca Pina Bello ◽  
Juliana Davel Batista ◽  
Matheus Moura da Silva ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Reality System

A Virtual Reality System for Pre-Planning of Robotic-Assisted Prostate Biopsy

2015 ◽  
Vol 772 ◽  
pp. 585-590
Author(s):  
Florin Gîrbacia ◽  
Silviu Butnariu ◽  
Daniel Voinea ◽  
Bogdan Tzolea ◽  
Teodora Gîrbacia ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Virtual Environment ◽  
Virtual Reality System ◽  
Surgical Robots ◽  
Robotic Assisted ◽  
Biopsy Procedure ◽  
Planning Software ◽  
Operative Planning ◽  
Serial Robot ◽  
Needle Trajectory

Surgical robots for biopsy procedure require pre-operative planning of trajectories prior to be used for needle guiding procedures. Virtual Reality (VR) technologies allow to simulate robotic biopsy procedure and to generate accurate needle trajectories that avoid vital organs. The paper presents a serial robot which can be used for biopsy procedure and a needle trajectory planning software based on VR technologies. A virtual environment has been modelled and simulations for robotic-assisted biopsy of the prostate have been performed.

Natural Locomotion Based on Foot-Mounted Inertial Sensors in a Wireless Virtual Reality System

2015 ◽  
Vol 24 (4) ◽  
pp. 298-321 ◽  
Author(s):  
Ernesto de la Rubia ◽  
Antonio Diaz-Estrella
Keyword(s):  
Virtual Reality ◽  
Gait Cycle ◽  
Inertial Sensors ◽  
Low Cost ◽  
Point Of View ◽  
Handheld Devices ◽  
Preliminary Evaluation ◽  
Virtual Reality System ◽  
Object Searching

Virtual reality has become a promising field in recent decades, and its potential now seems clearer than ever. With the development of handheld devices and wireless technologies, interest in virtual reality is also increasing. Therefore, there is an accompanying interest in inertial sensors, which can provide such advantages as small size and low cost. Such sensors can also operate wirelessly and be used in an increasing number of interactive applications. An example related to virtual reality is the ability to move naturally through virtual environments. This is the objective of the real-walking navigation technique, for which a number of advantages have previously been reported in terms of presence, object searching, and collision, among other concerns. In this article, we address the use of foot-mounted inertial sensors to achieve real-walking navigation in a wireless virtual reality system. First, an overall description of the problem is presented. Then, specific difficulties are identified, and a corresponding technique is proposed to overcome each: tracking of foot movements; determination of the user’s position; percentage estimation of the gait cycle, including oscillating movements of the head; stabilization of the velocity of the point of view; and synchronization of head and body yaw angles. Finally, a preliminary evaluation of the system is conducted in which data and comments from participants were collected.

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