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

Rapid development in the different computer science fields during the recent decades has facilitated the creation of new applications in the area of dynamic simulation of plant development. Among these new applications, simulation of trees swaying in the wind is of great importance, as those computer graphics related areas, e.g., computer games, tree cultivation and forest management simulations, help a lot in revealing the mechanisms of tree dynamics under wind load. However, it is a big challenge to balance the effect of visualization in real time and calculation efficiency for any simulation algorithm. A physics-based algorithm to simulate tree dynamics under wind load was proposed in this study. A mechanistic model simulating the bending of a cantilever beam was used within the algorithm to simulate deformation of stems, and the algorithm was integrated with a landscape model in which different types of trees were constructed with an L-system-based formalism. Simulation results show that realistic dynamic effects can be achieved with reasonably high computational efficiency.

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“…The direction of the incident light was determined by the location of the sun, i.e. its altitude and azimuth [24] .…”

Section: Simulation Of the Scenementioning

confidence: 99%

Physics-based algorithm to simulate tree dynamics under wind load

Yang

Ding

et al. 2020

International Journal of Agricultural and Biological Engineering

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“…AR does not replace reality, as the virtual reality (VR); it complements real environment with digital information, virtual and computer-generated graphics Reality-virtuality continuums [23].…”

Section: Augmented Realitymentioning

confidence: 99%

“…The technical objective of the project was to immerge the audience into a non-realistic view of the River banks that would be different from traditional tours that highlight the main features of Paris' classical architecture. The implemented software is used in standard algorithms for particular effects to a live video stream and then re-projected these effects on the captured scenes to merge the real world with its modified image [23].…”

Section: Outdoor Marker-less-based Augmented Realitymentioning

confidence: 99%

“…Kolivand and El Rhalibi presented a new technique to augment a realistic virtual building in real environments to be observed live through an AR camera [23]. There are some outdoor components when augmented a realistic building, for example, the sun position, shadows, sky illumination and virtual traditional animated characters.…”

Section: Cultural Heritage In Augmented Realitymentioning

confidence: 99%

“…A simple camera setup system has used to present Marker-less AR. The final system can be installed on head mounted display (HMD) or in the proposed device called ReVitAge to show the realistic reconstructed virtual heritage buildings, taking into account the main components of outdoor illumination [23].…”

Section: Cultural Heritage In Augmented Realitymentioning

confidence: 99%

See 2 more Smart Citations

Cultural Heritage in Marker-Less Augmented Reality: A Survey

Kolivand¹,

Rhalibi²,

Tajdini³

et al. 2019

Advanced Methods and New Materials for Cultural Heritage Preservation

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Augmented reality (AR) is considered as one of the most significant technologies in the field of computer graphics and is utilised in many applications. In this chapter, we have presented a brief comprehensive survey of cultural heritage using augmented reality systems. This survey describes the main objectives and characteristics of marker-less augmented reality systems through presenting up-to-date research results in this area. We describe the marker-less technologies in the area of AR, indoor marker-less AR, outdoor marker-less AR, real-time solutions to the tracking problem, real-time registration, cultural heritage in AR, 3D remonstration techniques, as well as presenting the problems in each research.

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