Depth perception in shuffleboard: Depth cues effect on depth perception in virtual and augmented reality system

2019 ◽  
Vol 28 (2) ◽  
pp. 164-176
Author(s):  
Jiamin Ping ◽  
Dongdong Weng ◽  
Yue Liu ◽  
Yongtian Wang
2013 ◽  
Vol 442 ◽  
pp. 203-208
Author(s):  
Jozef Novak-Marcincin

Augmented Reality (AR) is a developing area of virtual reality research. The world environment around us provides a wealth of information that is difficult to duplicate in a computer. This is evidenced by the worlds used in virtual environments. An augmented reality system generates a composite view for the user. It is a combination of the real scene viewed by the user and a virtual scene generated by the computer that augments the scene with additional information. In paper is presented the example of virtual and augmented reality application in area of molding tool assembly realized by author.


2013 ◽  
Vol 853 ◽  
pp. 613-618 ◽  
Author(s):  
Jozef Novak-Marcincin ◽  
Miroslav Janak

Virtual reality provides an easy, powerful, intuitive way of human-computer interaction. The user can watch and manipulate the simulated environment in the same way we act in the real world, without any need to learn how the complicated user interface works. Therefore many applications like flight simulators, architectural walkthrough or data visualization systems were developed relatively fast. Later on, virtual reality has was applied as a teleoperating and collaborative medium, and in the entertainment area. Augmented reality system generates a complex view where the virtual areas are covered by real environment and offers the basic working place for the user. It is a reciprocal combination of the real scene observed by the camera and virtual scene generated by the computer logical core that mixture the both scenes. It is easy to say that possibilities of augmented reality find the utilization in many industrial spheres like as aeronautics, automobile industry, manufacturing etc.


2019 ◽  
Vol 19 (2) ◽  
Author(s):  
Haroun Djaghloul ◽  
Jean-Pierre Jessel

This paper presents a new method for public and blind watermarking of 3D objects and hiding information of various types in virtual reality and augmented reality environments. In particular, the virtual scene is transformed to a tree-based model using constructive solid geometry (CSG). The tree of the virtual 3D objects is composed of nodes and leafs. Each tree node contains a set operator (union, intersection or difference) whereas the tree leafs consist of geometric primitives such as spheres, cylinders and cubes. The proposed method allows embedding invisible watermarks that can hide different security information types. The proposed method ensures unlimited capacity and absolute invisibility of the hidden information with robustness to affine transformations. Thanks to these unique properties, it is possible to implement all the security infrastructures needed for a virtual and augmented reality system. Finally, the performances of the proposed method are shown using 3D models of different types and scenes.


2019 ◽  
Author(s):  
Paul Linton

Near distances are overestimated in virtual reality, and far distances are underestimated, but an explanation for these distortions remains elusive. One potential concern is that whilst the eye rotates to look at the virtual scene, the virtual cameras remain static. Could using eye-tracking to change the perspective of the virtual cameras as the eye rotates improve depth perception in virtual reality? This paper identifies 14 distinct perspective distortions that could in theory occur from keeping the virtual cameras fixed whilst the eye rotates in the context of near-eye displays. However, the impact of eye movements on the displayed image depends on the optical, rather than physical, distance of the display. Since the optical distance of most head-mounted displays is over 1m, most of these distortions will have only a negligible effect. The exception are ‘gaze-contingent disparities’, which will leave near virtual objects looking displaced from physical objects that are meant to be at the same distance in augmented reality.


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