Institut für Nachrichtentechnik

Abhinav Bhattacharya, M.Sc.

Research Topic

My research focuses on the evaluation of user behavior and ecological validity in immersive audiovisual environments. I am interested in understanding how people perceive, explore, and interact with virtual scenes in relation to real-world experiences, with the goal of improving the Quality of Experience (QoE) in extended and mixed reality systems.

Building on this, I aim to explore how audiovisual scene characteristics, including spatial audio and visual representations, shape users’ attention, perception, and engagement in virtual environments. It focuses on understanding behavior and experience in immersive media through studies of audiovisual saliency, cognitive engagement, and multimodal communication in XR. The aim of my PhD is to develop methods for assessing ecological validity by combining behavioral observations, physiological measures, and subjective evaluations within controlled VR experiments, helping to better connect virtual experiences with real-world perception.

Publications

W. Menz, A. Bhattacharya, R. R. Ramachandra Rao, T. Robotham, F. Immohr, S. Göring, E. A. P. Habets, and A. Raake, “Influence of 4th-order ambisonics audio on the perceived quality and exploration behavior of 360^o videos,” in 2025 International Conference on Metaverse Computing, Networking and Applications (MetaCom), pp. 381–388, Aug. 2025. [ bib | DOI ]

W. Menz, J. Hartbrich, A. Bhattacharya, R. R. R. Rao, S. Göring, and A. Raake, “Impact of texture resolution, polygon count, quality level, and viewing distance on volumetric avatar visual quality,” in 2025 International Conference on Metaverse Computing, Networking and Applications (MetaCom), pp. 165–172, Aug. 2025. [ bib | DOI ]

A. Bhattacharya, L. F. d. S. Cardoso, A. Schleising, G. Rendle, A. Kreskowski, F. Immohr, R. R. R. Rao, W. Broll, and A. Raake, “Amis: An audiovisual dataset for multimodal xr research,” in Proceedings of the 16th ACM Multimedia Systems Conference, pp. 291–297, 2025. [ bib ]

A. Singla, T. Robotham, A. Bhattacharya, W. Menz, E. A. Habets, and A. Raake, “Saliency of omnidirectional videos with different audio presentations: Analyses and dataset,” in 2023 15th International Conference on Quality of Multimedia Experience (QoMEX), pp. 264–269, IEEE, 2023. [ bib ]

NOTICE FOR IEEE PUBLICATIONS: © IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works, must be obtained from the IEEE. Contact: Manager, Copyrights and Permissions / IEEE Service Center / 445 Hoes Lane / P.O. Box 1331 / Piscataway, NJ 08855-1331, USA. Telephone: + Intl. 908-562-3966.