A formal de nition of strong virtual synchrony capturing the semantics of virtual syn chrony as implemented in Horus is presented This de nition has the nice property that every message is delivered within the view in which it was sent However it is shown that in order to implement strong virtual synchrony the application program has to block messages during view changes An alternative de nitio...

Image-based localization has been widely used for autonomous vehicles, robotics, augmented reality, etc., and this is carried out by matching a query image taken from cell phone or vehicle dashcam to large scale of geo-tagged reference images, such as satellite/aerial images Google Street Views. However, the problem remains challenging due inconsistency between large-scale datasets regarding va...

Massive virtual collaborations (MVC) involve large numbers of mostly unpaid contributors collectively creating various kinds of new content. We propose a model of motivations for contribution to MVC that uses helping behaviour as a framework to integrate various theoretical perspectives, namely work motivation and social movement theory. We argue that what was previous considered a single, stat...

The compression of multiview video in an end-to-end 3D system is required to reduce the amount of visual information. Since multiple cameras usually have a common field of view, high compression ratios can be achieved if both the temporal and inter-view redundancy are exploited. View synthesis prediction is a new coding tool for multiview video that essentially generates virtual views of a scen...

Background: In the legal world, a person is not only referred to as a human being. In fact, in the world of law, a person has a more general concept that includes both human and non-human. The aim of this study was to compare real and legal personality with virtual personality from a moral perspective, as one of the important principles of Iranian law. In this regard, by understanding ethics an...

This work deals with the view synthesis problem, i.e., how to generate snapshots of a scene taken from a “virtual” viewpoint different from all the viewpoints of the real views. Starting from uncalibrated reference images, the geometry of the scene is recovered by means of the relative affine structure. This information is used to extrapolate novel views using planar warping plus parallax corre...

Image mosaicing constructs a wide field-of-view result from multiple source frames. In order to ensure a perceptually correct result, mosaicing typically requires either a planar or near-planar scene, parallax-free camera motion between source frames, or a dense sampling of the scene. When these conditions are not satisfied, various artifacts may result. A novel mosaicing approach is introduced...