探索性研究用戶對受損影像的動態視敏度和品質感知(Human-Computer Interaction)

• 2020 年 1 月 14 日
• 筆記

在這篇論文中，我們評估了頭部運動對用戶視力的影響，以及他們對受損影像的品質感知。一個人可以感知到的視覺資訊的數量有物理上的限制，而我們的身體，也就是我們的大腦，探索一個場景的速度也有物理上的限制。在這些局限性中存在著多媒體系統通訊的基本解決方案。因此，受試者被要求評價在他們的頭部處於動態(移動)狀態時，電視螢幕上呈現的靜態影像的感知品質。這個想法可能適用於虛擬現實應用，因此，我們也測量了每個受試者在頭戴顯示器上的影像品質感知。實驗表明，當用戶的頭部不處於靜止狀態時，其視覺敏銳度和品質感知能力顯著下降，並給出了在用戶未察覺任何損傷的情況下，其品質可以下降多少的指示。

原文題目：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