Towards prediction of Sense of Presence in immersive audiovisual communications

Tremendous progress has been made in audiovisual technologies in the last decades. Consequently, new technologies quality measures evolve and trend to be more user-centric. This is the reason why the Quality of Experience (QoE) assessment is presently meaningful and challenging, especially for users typical experiences during multimedia content consumption. Such an evaluation is the aim of this paper. More specifically, the Sense of Presence (SoP) was explored in place of QoE as it is a factor influencing the QoE. This paper presents the conducted subjective test investigating typical and practical user experiences. This latter consists of presenting one-minute video stimuli to twenty subjects, on three different devices (iPhone, iPad and UHD screen). Annotated subjective scores were collected and physiological signals (EEG, ECG, and Respiration) were recorded during the conducted subjective test. The resulting multimodal dataset, aiming an alternative evaluation of human experience while consuming multimedia, is publicly available

Accessibility of Health Data Representations for Older Adults: Challenges and Opportunities for Design

Health data of consumer off-the-shelf wearable devices is often conveyed to users through visual data representations and analyses. However, this is not always accessible to people with disabilities or older people due to low vision, cognitive impairments or literacy issues. Due to trade-offs between aesthetics predominance or information overload, real-time user feedback may not be conveyed easily from sensor devices through visual cues like graphs and texts. These difficulties may hinder critical data understanding. Additional auditory and tactile feedback can also provide immediate and accessible cues from these wearable devices, but it is necessary to understand existing data representation limitations initially. To avoid higher cognitive and visual overload, auditory and haptic cues can be designed to complement, replace or reinforce visual cues. In this paper, we outline the challenges in existing data representation and the necessary evidence to enhance the accessibility of health information from personal sensing devices used to monitor health parameters such as blood pressure, sleep, activity, heart rate and more. By creating innovative and inclusive user feedback, users will likely want to engage and interact with new devices and their own data