Searched for: author%3A%22Cesar%2C+Pablo%22
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Alexiou, Evangelos (author), Nehmé, Yana (author), Zerman, Emin (author), Viola, Irene (author), Lavoué, Guillaume (author), Ak, Ali (author), Smolic, Aljosa (author), Le Callet, Patrick (author), Cesar, Pablo (author)
Volumetric video (VV) is a novel form of video that allows recreation of real-world scenes in 3D with users consuming the content from any viewpoint they desire. This makes VV best suited for augmented reality (AR) or virtual reality (VR) applications. This freedom necessitates increased user interaction with the VV itself, which brings new...
book chapter 2023
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Li, Jie (author), Cesar, Pablo (author)
Virtual reality (VR) is the experience in a simulated interactive virtual space. It provides synthetic sensory feedback to users' actions that can physically and mentally immerse the users. Social VR is one type of VR system that allows multiple users to join a collaborative virtual environment and communicate with each other, usually by...
book chapter 2023
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El Ali, Abdallah (author), Stepanova, Ekaterina R. (author), Palande, Shalvi (author), Mader, Angelika (author), Cesar, Pablo (author), Jansen, K.M.B. (author)
Sharing breathing signals has the capacity to provide insights into hidden experiences and enhance interpersonal communication. However, it remains unclear how the modality of breath signals (visual, haptic) is socially interpreted during collaborative tasks. In this mixed-methods study, we design and evaluate BreatheWithMe, a prototype for...
conference paper 2023
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Ooms, Simone (author), Lee, Minha (author), Cesar, Pablo (author), El Ali, Abdallah (author)
Emotion plays a key role in the emerging wave of immersive, multi-sensory audience news engagement experiences. Since emotions can be triggered by somatosensory feedback, in this work we explore how augmenting news video watching with haptics can influence affective perceptions of news. Using a mixed-methods approach, we design and evaluate...
conference paper 2023
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Ghosh, Surjya (author), Pons Rodriguez, Gerard (author), Rao, Shruti (author), El Ali, Abdallah (author), Cesar, Pablo (author)
While affective non-verbal communication between pedestrians and drivers has been shown to improve on-road safety and driving experiences, it remains a challenge to design driver assistance systems that can automatically capture these affective cues. In this early work, we identify users' emotional self-report responses towards commonly...
conference paper 2022
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Lee, Sueyoon (author), El Ali, Abdallah (author), Wijntjes, M.W.A. (author), Cesar, Pablo (author)
Visualizing biosignals can be important for social Virtual Reality (VR), where avatar non-verbal cues are missing. While several biosignal representations exist, designing effective visualizations and understanding user perceptions within social VR entertainment remains unclear. We adopt a mixed-methods approach to design biosignals for...
conference paper 2022
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Lee, Sueyoon (author), Striner, Alina (author), Cesar, Pablo (author)
Several social VR platforms support virtual entertainment events, however their value for post-show activities remains unclear. Through a user-centered approach, we design a social VR lobby experience to enrich four motivations of theatre-goers: social, intellectual, emotional, and spiritual engagement. We ran a context-mapping focus group...
conference paper 2022
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Röggla, Thomas (author), Striner, Alina (author), Rivas Pagador, Héctor (author), Cesar, Pablo (author)
This work presents the Co-Creation Space, a multilingual platform for professional and community artists to 1) generate raw artistic ideas, and 2) discuss and reflect on the shared meaning of those ideas. The paper describes the architecture and the technology behind the platform, and how it was used to facilitate the communication process...
conference paper 2022
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Rao, Shruti (author), Ghosh, Surjya (author), Pons Rodriguez, Gerard (author), Röggla, Thomas (author), El Ali, Abdallah (author), Cesar, Pablo (author)
Automatically inferring drivers' emotions during driver-pedestrian interactions to improve road safety remains a challenge for designing in-vehicle, empathic interfaces. To that end, we carried out a lab-based study using a combination of camera and physiological sensors. We collected participants' (N=21) real-time, affective (emotion self...
conference paper 2022
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Xue, Tong (author), El Ali, Abdallah (author), Viola, Irene (author), Ding, Gangyi (author), Cesar, Pablo (author)
Watching HMD-based 360° video has become in-creasing popular as a medium for immersive viewing of photo-realistic content. To evaluate subjective video quality, researchers typically prompt users to provide an overall Quality of Experience (QoE) score after viewing a stimulus. However, since users can adjust their viewport throughout a 360°...
conference paper 2022
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Rao, Shruti (author), Resendez, Valeria (author), El Ali, Abdallah (author), Cesar, Pablo (author)
Voice User Interfaces (VUIs) such as Alexa and Google Home that use human-like design cues are an increasingly popular means for accessing news. Self-disclosure in particular may be used to build relationships of trust with users who may reveal intimate details about themselves. This information can be (mis)used by algorithms to tailor and...
conference paper 2022
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Subramanyam, S. (author), Viola, Irene (author), Jansen, Jack (author), Alexiou, Evangelos (author), Hanjalic, A. (author), Cesar, Pablo (author)
Technological advances in head-mounted displays and novel real-time 3D acquisition and reconstruction solutions have fostered the development of 6 Degrees of Freedom (6DoF) teleimmersive systems for social VR applications. Point clouds have emerged as a popular format for such applications, owing to their simplicity and versatility; yet,...
conference paper 2022
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Rossi, Silvia (author), Viola, Irene (author), Cesar, Pablo (author)
This work presents an explorative behavioural analysis of users navigating in an immersive space aimed at enabling the next-generation multimedia systems. Our main goal is to understand how the user experience of immersive content with 6-Degrees-of-Freedom (DoF) is affected not only by the visual content and its quality but also by the...
conference paper 2022
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Striner, Alina (author), Röggla, Thomas (author), Zorrilla, Mikel (author), Cabrero Barros, Sergio (author), Masneri, Stefano (author), Rivas Pagador, Héctor (author), Calvis, Irene (author), Li, Jie (author), Cesar, Pablo (author)
Artistic co-creation empowers communities to shape their narratives, however HCI research does not support this multifaceted discussion and reflection process. In the context of community opera, we consider how to support co-creation through the design, implementation, and initial evaluation of the Co-Creation Space (CCS) to help community...
conference paper 2022
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Montagud, Mario (author), Li, Jie (author), Cernigliaro, Gianluca (author), El Ali, Abdallah (author), Fernández, Sergi (author), Cesar, Pablo (author)
Social VR enables people to interact over distance with others in real-time. It allows remote people, typically represented as avatars, to communicate and perform activities together in a shared virtual environment, extending the capabilities of traditional social platforms like Facebook and Netflix. This paper explores the benefits and...
journal article 2022
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Rossi, Silvia (author), Viola, Irene (author), Jansen, Jack (author), Subramanyam, S. (author), Toni, Laura (author), Cesar, Pablo (author)
Social Virtual Reality (VR) applications represent a big step forward in the field of remote communication. Social VR provides the possibility for participants to explore and interact with virtual environments and objects, feelings of a full sense of immersion, and being together. Understanding how user behaviour is influenced by the shared...
conference paper 2021
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Xue, Tong (author), El Ali, Abdallah (author), Zhang, T. (author), Ding, Gangyi (author), Cesar, Pablo (author)
Watching 360 videos using Virtual Reality (VR) head-mounted displays (HMDs) provides interactive and immersive experiences, where videos can evoke different emotions. Existing emotion self-report techniques within VR however are either retrospective or interrupt the immersive experience. To address this, we introduce the Continuous...
journal article 2021
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Mei, Yanni (author), Li, Jie (author), de Ridder, H. (author), Cesar, Pablo (author)
Cake customization services allow clients to collaboratively personalize cakes with pastry chefs. However, remote (e.g., email) and in-person co-design sessions are prone to miscommunication, due to natural restrictions in visualizing cake size, decoration, and celebration context. This paper presents the design, implementation, and expert...
conference paper 2021
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Li, Jie (author), Vinayagamoorthy, Vinoba (author), Williamson, Julie (author), Shamma, David A. (author), Cesar, Pablo (author)
We are facing increasingly pressure on reducing travel and working remotely. Tools that support effective remote communication and collaboration are much needed. Social Virtual Reality (VR) is an emerging medium, which invites multiple users to join a collaborative virtual environment (VE) and has the potential to support remote communication...
conference paper 2021
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Jansen, Jack (author), Subramanyam, Shishir (author), Bouqueau, Romain (author), Cernigliaro, Gianluca (author), Cabré, Marc Martos (author), Pérez, Fernando (author), Cesar, Pablo (author)
The advent of affordable 3D capture and display hardware is making volumetric videoconferencing feasible. This technology increases the immersion of the participants, breaking the flat restriction of 2D screens, by allowing them to collaborate and interact in shared virtual reality spaces. In this paper we introduce the design and development...
conference paper 2020
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