Visual fidelity improvement in virtual reality through spectral textures applied to lighting simulations

2020 ◽  
Vol 2020 (15) ◽  
pp. 259-1-259-4 ◽  
Author(s):  
Francisco Diaz-Barrancas ◽  
Halina C. Cwierz ◽  
Pedro J. Pardo ◽  
Angel Luis Perez ◽  
Maria Isabel Suero

Virtual reality has experienced a strong advance in recent years, its use in industries such as video games, automotive and medicine is now a reality. Previous work has determined that color is one of the most important characteristics when it comes to creating a sense of realism in the user. Therefore, through the use of spectral techniques we have found that it is possible to improve the fidelity in the reproduction of a real scene inside a virtual reality scene. In order to do this, we have developed a workflow that allows the user to compare real scenes with virtual scenes. The results of this test show that there exists an improvement of the visual fidelity in the reproduction of real scenes inside a virtual reality system compared with previous works.

2008 ◽  
Vol 34 (5) ◽  
pp. 521-538 ◽  
Author(s):  
Patrícia Arriaga ◽  
Francisco Esteves ◽  
Paula Carneiro ◽  
Maria Benedicta Monteiro

2015 ◽  
Vol 9 (6) ◽  
pp. 600
Author(s):  
Sergio Valdivia-Trujillo ◽  
Eliana Prada-Dominguez ◽  
Estefania Ramos-Montilla ◽  
Alvaro Joffre Uribe-Quevedo

Author(s):  
Jonathan Weinel

This chapter explores altered states of consciousness in interactive video games and virtual reality applications. First, a brief overview of advances in the sound and graphics of video games is provided, which has led to ever-more immersive capabilities within the medium. Following this, a variety of games that represent states of intoxication, drug use, and hallucinations are discussed, in order to reveal how these states are portrayed with the aid of sound and music, and for what purpose. An alternative trajectory in games is also explored, as various synaesthetic titles are reviewed, which provide high-adrenaline experiences for ravers, and simulate dreams, meditation, or psychedelic states. Through the analysis of these, and building upon the previous chapters of Inner Sound, this chapter presents a conceptual model for ‘Altered States of Consciousness Simulations’: interactive audio-visual systems that represent altered states with regards to the sensory components of the experience.


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

2021 ◽  
Vol 11 (5) ◽  
pp. 2033
Author(s):  
Sangguk Cha ◽  
Da-Yoon Nam ◽  
Jong-Ki Han

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


2015 ◽  
Vol 772 ◽  
pp. 585-590
Author(s):  
Florin Gîrbacia ◽  
Silviu Butnariu ◽  
Daniel Voinea ◽  
Bogdan Tzolea ◽  
Teodora Gîrbacia ◽  
...  

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.


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