Depth from HDR: depth induction or increased realism?

P. Vangorp, Rafał K. Mantiuk, B. Bazyluk, K. Myszkowski, R. Mantiuk, S. Watt, H. Seidel
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引用次数: 14

Abstract

Many people who first see a high dynamic range (HDR) display get the impression that it is a 3D display, even though it does not produce any binocular depth cues. Possible explanations of this effect include contrast-based depth induction and the increased realism due to the high brightness and contrast that makes an HDR display "like looking through a window". In this paper we test both of these hypotheses by comparing the HDR depth illusion to real binocular depth cues using a carefully calibrated HDR stereoscope. We confirm that contrast-based depth induction exists, but it is a vanishingly weak depth cue compared to binocular depth cues. We also demonstrate that for some observers, the increased contrast of HDR displays indeed increases the realism. However, it is highly observer-dependent whether reduced, physically correct, or exaggerated contrast is perceived as most realistic, even in the presence of the real-world reference scene. Similarly, observers differ in whether reduced, physically correct, or exaggerated stereo 3D is perceived as more realistic. To accommodate the binocular depth perception and realism concept of most observers, display technologies must offer both HDR contrast and stereo personalization.
来自HDR的深度:深度诱导还是增强真实感?
许多第一次看到高动态范围(HDR)显示器的人会觉得它是3D显示器,即使它不产生任何双目深度线索。对这种效果的可能解释包括基于对比度的深度感应和由于高亮度和对比度而增加的真实感,这使得HDR显示“像透过窗户看”。在本文中,我们通过使用精心校准的HDR立体镜将HDR深度错觉与真实双目深度线索进行比较,来测试这两种假设。我们证实了基于对比的深度诱导存在,但与双目深度线索相比,它是一个逐渐消失的弱深度线索。我们还证明,对于一些观察者来说,HDR显示的对比度增加确实增加了真实感。然而,它是高度依赖于观察者,无论是减少,物理正确,或夸张的对比被认为是最真实的,即使在现实世界的参考场景的存在。同样地,观察者对于是否认为缩小的、物理正确的或夸张的立体3D更真实也有不同的看法。为了适应大多数观察者的双眼深度感知和现实主义概念,显示技术必须同时提供HDR对比度和立体个性化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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