QoE and Immersion of Dynamic Point Cloud

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Submitted by:
Minh Nguyen
Last updated:
Mon, 08/28/2023 - 10:23
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Point cloud streaming has recently attracted research attention as it has the potential to provide six degrees of freedom movement, which is essential for truly immersive media. The transmission of point clouds requires high-bandwidth connections, and adaptive streaming is a promising solution to cope with fluctuating bandwidth conditions. Thus, understanding the impact of different factors in adaptive streaming on the Quality of Experience (QoE) becomes fundamental. Point clouds have been evaluated in Virtual Reality (VR), where viewers are completely immersed in a virtual environment. Augmented Reality (AR) is a novel technology and has recently become popular, yet quality evaluations of point clouds in AR environments are still limited to static images. In this paper, we perform a subjective study of four impact factors on the QoE of point cloud video sequences in AR conditions, including encoding parameters (quantization parameters, QPs), quality switches, viewing distance, and content characteristics. The experimental results show that these factors significantly impact the QoE. The QoE decreases if the sequence is encoded at high QPs and/or switches to lower quality and/or is viewed at a shorter distance, and vice versa. Additionally, the results indicate that the end user is not able to distinguish the quality differences between two quality levels at a specific (high) viewing distance.

This repository contains the results of the subjective test on the quality of experience (QoE) for dynamic point clouds in augmented reality environments.



The structure of the dataset is described in the README.md file

If you use the data provided in this repository, please cite the following papers.


  author={Nguyen, Minh and Vats, Shivi and Van Damme, Sam and Van Der Hooft, Jeroen and Vega, Maria Torres and Wauters, Tim and Timmerer, Christian and Hellwagner, Hermann},

  booktitle={2023 15th International Conference on Quality of Multimedia Experience (QoMEX)}, 

  title={Impact of Quality and Distance on the Perception of Point Clouds in Mixed Reality},