2020 |
Kontos, D; Georgopoulos, A PERFORMING 3D MEASUREMENTS in A VR ENVIRONMENT Inproceedings In: Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci. - ISPRS Arch., pp. 863–870, International Society for Photogrammetry and Remote Sensing, 2020, ISSN: 16821750. Abstract | Links | BibTeX | Tags: 3D model, HTC Vive, Unreal Engine, Virtual Reality @inproceedings{Kontos2020,In the context of this paper, a virtual reality application that allows each user to perform basic topographic processes on an already created 3D model inside a virtual environment was developed. Specifically, it is an application that allows the user to perform measurements of distances between two points in three-dimensional space and measurement and extraction of the three-dimensional coordinates of any point inside the virtual reality environment. Furthermore, the created application was evaluated in terms of its functionality, its usability and metric accuracy. Before the developing stage a research was done in order to determine which virtual reality system and which game engine is most suitable to use and finally the HTC Vive® virtual reality system and the Unreal Engine 4 game engine were used. Before all that, the concept of the virtual reality science was defined and also the virtual reality technologies in today's world were analyzed. |
Skamantzari, M; Georgopoulos, A; Palyvou, C Sunken Roman Villa of Ancient Epidaurus: Documentation and Enhancement Using Virtual Reality Inproceedings In: ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci., pp. 981–988, Copernicus GmbH, 2020, ISSN: 21949050. Abstract | Links | BibTeX | Tags: 3D modelling, geometric documentation, SfM/MVS, Underwater Cultural Heritage, Virtual Reality @inproceedings{Skamantzari2020,The interest in the documentation and enhancement of Underwater Cultural Heritage (UCH) is rising rapidly over the last decades. This has happened especially due to the significant technological advances, which have enabled the digital data acquisition in the hostile underwater environment. Numerous efforts have been made so far concerning the 3D digitisation and promotion of the UCH using photogrammetric methods and 3D surveys in order on one hand to document the site and on the other to develop virtual and augmented reality applications and make this part of the hidden cultural heritage accessible to people with difficulties to reach it.textless/ptextgreatertextlessptextgreaterThis paper presents the methodology, the actions and decisions that were taken for the geometric documentation, study, promotion and enhancement of the remains of a roman villa located at Agios Vlassis, in Ancient Epidaurus in Greece. The present effort focuses on the use of low-cost equipment in order to acquire the necessary digital data to produce the 3D textured model of the archaeological site and the required 2D documentation products. The methods used to produce this 3D model involve contemporary computer vision algorithms adapted to confront the challenge of processing a huge number of images and extracting useful metric information from them. Moreover, the creation and programming process of two virtual reality applications is described. By developing a virtual tour and a virtual reality application, it is hoped to raise the awareness about UCH and give prominence to different means and ways of protection and management of underwater archaeological sites. |
2020 |
PERFORMING 3D MEASUREMENTS in A VR ENVIRONMENT Inproceedings In: Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci. - ISPRS Arch., pp. 863–870, International Society for Photogrammetry and Remote Sensing, 2020, ISSN: 16821750. |
Sunken Roman Villa of Ancient Epidaurus: Documentation and Enhancement Using Virtual Reality Inproceedings In: ISPRS Ann. Photogramm. Remote Sens. Spat. Inf. Sci., pp. 981–988, Copernicus GmbH, 2020, ISSN: 21949050. |