BrightView: Increasing Perceived Brightness of Optical See-Through Head-Mounted Displays Through Unnoticeable Incident Light Reduction

Shohei Mori, Sei Ikeda, Alexander Plopski, C. Sandor
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引用次数: 19

Abstract

Optical See-Through Head-Mounted Displays (OST-HMDs) lose the visibility of virtual contents under bright environment illumination due to their see-through nature. We demonstrate how a liquid crystal (LC) filter attached to an OST-HMD can be used to dynamically increase the perceived brightness of virtual content without impacting the perceived brightness of the real scene. We present a prototype OST-HMD that continuously adjusts the opacity of the LC filter to attenuate the environment light without users becoming aware of the change. Consequently, virtual content appears to be brighter. The proposed approach is evaluated in psychophysical experiments in three scenes, with 16, 31, and 31 participants, respectively. The participants were asked to compare the magnitude of brightness changes of both real and virtual objects, before and after dimming the LC filter over a period of 5, 10, and 20 seconds. The results showed that the participants felt increases in the brightness of virtual objects while they were less conscious of reductions of the real scene luminance. These results provide evidence for the effectiveness of our display design. Our design can be applied to a wide range of OST-HMDs to improve the brightness and hence realism of virtual content in augmented reality applications.
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BrightView:通过减少不明显的入射光来增加光学透明头戴式显示器的感知亮度
光学透明头戴式显示器(ost - hmd)由于其透明的特性,在明亮的环境照明下失去了虚拟内容的可见性。我们演示了如何使用附加在OST-HMD上的液晶(LC)滤波器来动态地增加虚拟内容的感知亮度,而不会影响真实场景的感知亮度。我们提出了一个原型OST-HMD,它可以不断调整LC滤光器的不透明度,从而在用户没有意识到变化的情况下衰减环境光。因此,虚拟内容显得更加明亮。该方法在心理物理实验中进行了评估,在三个场景中,分别有16名、31名和31名参与者。参与者被要求在5秒、10秒和20秒调暗LC滤波器之前和之后,比较真实物体和虚拟物体的亮度变化幅度。结果表明,参与者感受到虚拟物体亮度的增加,而他们不太意识到真实场景亮度的降低。这些结果为我们的显示设计的有效性提供了证据。我们的设计可以应用于广泛的ost - hmd,以提高增强现实应用中虚拟内容的亮度和真实感。
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