LivePhantom: Retrieving Virtual World Light Data to Real Environments

Abstract

To achieve realistic Augmented Reality (AR), shadows play an important role in creating a 3D impression of a scene. Casting virtual shadows on real and virtual objects is one of the topics of research being conducted in this area. In this paper, we propose a new method for creating complex AR indoor scenes using real time depth detection to exert virtual shadows on virtual and real environments. A Kinect camera was used to produce a depth map for the physical scene mixing into a single real-time transparent tacit surface. Once this is created, the camera’s position can be tracked from the reconstructed 3D scene. Real objects are represented by virtual object phantoms in the AR scene enabling users holding a webcam and a standard Kinect camera to capture and reconstruct environments simultaneously. The tracking capability of the algorithm is shown and the findings are assessed drawing upon qualitative and quantitative methods making comparisons with previous AR phantom generation applications. The results demonstrate the robustness of the technique for realistic indoor rendering in AR systems.

ReVitAge: Realistic virtual heritage taking shadows and sky illumination into account

“…Storing the manipulated models in a standard format makes it easy for them to be used in different software. Kolivand et al [52] provided this ability through LivePhantom which reconstructs a 3D model and allows users to annotate vector graphic information and export it with different standard formats.…”

Photorealistic rendering: a survey on evaluation

“…They show the robustness and capability of the technique by illustrating many figures in different scenes to be compared with real shadows on other objects that users see in real environments. Kolivand et al [37] employed HSM [38] based on shadow mapping [39] and figured out the problem of static phantoms in [36]. They generated an interactive mixed environment, in which virtual shadows can be cast on real objects in real-time.…”

“…They also indirectly compared it with real environments by illustrating the realistic reconstructed environments and studying the interaction between real objects and virtually reconstructed environments. In a similar work by Kolivand et al [37] a reconstruction technique in mixed reality was used. This of this work was casting virtual shadows on real objects in real-time.…”

“…A shortcoming of the presented technique was using a static camera. This was while, Kolivand et al [37] proposed that this issue could be addressed by casting virtual shadows on realm objects in real-time using a depth camera to reconstruct environments.…”

A Study on Technological Education with Augmented Reality

“…Augmented Reality (AR) involves the integration of virtual content into real environments [5]. Augmented reality is not exciting as a virtual reality, but, it might be a very useful tool in the everyday lives of humans.…”