The visual system can recover 3D information from many different types of visual information, e.g., contour-drawings. How well can people navigate in a real dynamic environment with contour-drawings? This question was addressed by developing an AR-device that could show a contour-drawing of a real scene in an immersive manner and by conducting an observational field study in which the two authors navigated in real environments wearing this AR-device. The navigation with contour-drawings was difficult in natural scenes but easy in urban scenes. This suggests that the visual information from natural and urban environments is sufficiently different and our visual system can accommodate to this difference of the visual information in different environments.

视觉系统可以从许多不同类型的视觉信息（例如轮廓图）中恢复 3D 信息。人们在使用轮廓图的真实动态环境中导航的能力如何？这个问题通过开发一种 AR 设备来解决，该设备可以以身临其境的方式显示真实场景的轮廓图，并通过进行观察性实地​​研究，两位作者在佩戴该 AR 设备的真实环境中导航。使用轮廓图导航在自然场景中很困难，但在城市场景中很容易。这表明来自自然和城市环境的视觉信息有很大差异，我们的视觉系统可以适应不同环境中视觉信息的这种差异。