Wearable Augmented Reality (AR) is increasingly deployed in on-the-move contexts such as automated driving, cycling, and pedestrian navigation. To date, most systems rely on additive overlays that highlight hazards, intentions, or predictions without altering the scene itself. However, advances in head-mounted displays and computer vision now enable Diminished and Modified Reality techniques that suppress, transform, or substitute scene elements. These capabilities conceptually extend AR into Mediated Reality (MR), shifting the design space from "what to add" to "what is perceptually available." Because such mediation reshapes the evidential basis for situation awareness and trust calibration, it raises novel interaction challenges. This position paper argues that MR on the move must become governable, as users need mechanisms to configure, inspect, and understand mediation without compromising safety. Additionally, this position paper outlines design challenges related to governance granularity, epistemic signaling, and accountability, and frames MR on the move as a research agenda for governable perceptual mediation in dynamic, safety-critical environments.

翻译：可穿戴增强现实（AR）日益应用于自动驾驶、骑行和行人导航等动态场景中。迄今为止，大多数系统依赖于叠加式提示，即在不改变场景本身的前提下高亮显示危险、意图或预测信息。然而，头戴式显示设备与计算机视觉技术的进步，现已催生能够抑制、转换或替换场景元素的减损与修改现实技术。这些能力在概念上将AR扩展至中介现实（MR），将设计空间从“添加什么”转向“感知上可获取什么”。由于此类中介重塑了情境感知与信任校准的证据基础，它引发了新颖的交互挑战。本立场论文主张，动态MR必须变得可治理，因为用户需要在不损害安全的前提下配置、检查与理解中介的机制。此外，本文概述了与治理粒度、认知信号传递及问责相关的设计挑战，并将动态MR定位为动态安全关键环境中可治理感知中介的一个研究议程。