Publicação
Dynamic Substitutional Reality In Adaptive Virtual Experiences
| Resumo: | This dissertation aims to enable the creation of Substitutional Reality (SR) experiences that dynamically adapt to unknown spaces. A key limitation of Substitutional Reality (SR) today is its static deployment: most experiences are designed for a specific physical environment, preventing portability and restricting broader adoption. Researching the practical applications of SR and its advantages in certain fields is also important to encourage further research. To address these challenges, this work explores techniques for developing interactive SR experiences that adapt to arbitrary rooms while supporting the integration of narrative and user goals. A dynamic SR system was developed, which extends existing scene-understanding capabilities of modern Head-Mounted Displays (HMDs) with a runtime substitution pipeline. This pipeline maps physical objects to predefined virtual counterparts, allowing experiences to run across heterogeneous environments without manual calibration. Ad- ditionally, the system introduces versatile screen-space portals that serve two purposes: enabling seamless transitions between multiple substitutional environments and inte- grating video see-through Augmented Reality (AR) for a stronger connection to the real world. Designers can therefore construct SR experiences that combine portability, tangible interaction, and hybrid AR/SR configurations. To evaluate the system, a conceptual museum experience was implemented as a case study. This application demonstrated how Dynamic SR can support cultural heritage use cases, combining interpretive content and interactive artifacts with adaptability to different physical spaces. Evaluations included user studies on how substitution and passthrough integration affect locomotion and engagement, an investigation of portal interactions within the museum scenario, and adaptability tests assessing performance across diverse environments. The results validate the system’s effectiveness in creating adaptive SR experiences and demonstrate its applicability to cultural heritage contexts. |
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| Autores principais: | Figueira, Guilherme Ribeiro |
| Assunto: | Substitutional Reality Virtual Reality Mixed Reality Portals Cultural Heritage |
| Ano: | 2025 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade Nova de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório Institucional da UNL |
| Resumo: | This dissertation aims to enable the creation of Substitutional Reality (SR) experiences that dynamically adapt to unknown spaces. A key limitation of Substitutional Reality (SR) today is its static deployment: most experiences are designed for a specific physical environment, preventing portability and restricting broader adoption. Researching the practical applications of SR and its advantages in certain fields is also important to encourage further research. To address these challenges, this work explores techniques for developing interactive SR experiences that adapt to arbitrary rooms while supporting the integration of narrative and user goals. A dynamic SR system was developed, which extends existing scene-understanding capabilities of modern Head-Mounted Displays (HMDs) with a runtime substitution pipeline. This pipeline maps physical objects to predefined virtual counterparts, allowing experiences to run across heterogeneous environments without manual calibration. Ad- ditionally, the system introduces versatile screen-space portals that serve two purposes: enabling seamless transitions between multiple substitutional environments and inte- grating video see-through Augmented Reality (AR) for a stronger connection to the real world. Designers can therefore construct SR experiences that combine portability, tangible interaction, and hybrid AR/SR configurations. To evaluate the system, a conceptual museum experience was implemented as a case study. This application demonstrated how Dynamic SR can support cultural heritage use cases, combining interpretive content and interactive artifacts with adaptability to different physical spaces. Evaluations included user studies on how substitution and passthrough integration affect locomotion and engagement, an investigation of portal interactions within the museum scenario, and adaptability tests assessing performance across diverse environments. The results validate the system’s effectiveness in creating adaptive SR experiences and demonstrate its applicability to cultural heritage contexts. |
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