探索性研究用户对受损图像的动态视敏度和质量感知(Human-Computer Interaction)

• 2020 年 1 月 14 日
• 笔记

在这篇论文中，我们评估了头部运动对用户视力的影响，以及他们对受损图像的质量感知。一个人可以感知到的视觉信息的数量有物理上的限制，而我们的身体，也就是我们的大脑，探索一个场景的速度也有物理上的限制。在这些局限性中存在着多媒体系统通信的基本解决方案。因此，受试者被要求评价在他们的头部处于动态(移动)状态时，电视屏幕上呈现的静态图像的感知质量。这个想法可能适用于虚拟现实应用，因此，我们也测量了每个受试者在头戴显示器上的图像质量感知。实验表明，当用户的头部不处于静止状态时，其视觉敏锐度和质量感知能力显著下降，并给出了在用户未察觉任何损伤的情况下，其质量可以下降多少的指示。

原文题目：Exploratory Study on User’s Dynamic Visual Acuity and Quality Perception of Impaired Images

原文：In this paper we assess the impact of head movement on user’s visual acuity and their quality perception of impaired images. There are physical limitations on the amount of visual information a person can perceive and physical limitations regarding the speed at which our body, and as a consequence our head, can explore a scene. In these limitations lie fundamental solutions for the communication of multimedia systems. As such, subjects were asked to evaluate the perceptual quality of static images presented on a TV screen while their head was in a dynamic (moving) state. The idea is potentially applicable to virtual reality applications and therefore, we also measured the image quality perception of each subject on a head mounted display. Experiments show the significant decrease in visual acuity and quality perception when the user’s head is not static, and give an indication on how much the quality can be reduced without the user noticing any impairments.

原文作者：Jolien De Letter, Anissa All, Lieven De Marez, Vasileios Avramelos, Peter Lambert, Glenn Van Wallendael

原文地址： https://arxiv.org/abs/2001.03542