Reduction of contradictory partial occlusion in mixed reality by using characteristics of transparency perception
Reduction of contradictory partial occlusion in mixed reality by using characteristics of transparency perception
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DOI：
10.1109/ismar.2012.6402549
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发表时间：
2012-11
期刊：
影响因子：
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通讯作者：
Taiki Fukiage;Takeshi Oishi;K. Ikeuchi
中科院分区：
文献类型：
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作者：
Taiki Fukiage;Takeshi Oishi;K. Ikeuchi
混合现实（MR）应用中的挑战之一是处理真实的和虚拟对象之间的矛盾遮挡。以往的研究都试图通过从真实的图像中提取前景区域来解决遮挡问题。然而，实时遮挡处理仍然是困难的，因为它需要太多的计算成本，以精确分割前景区域在一个复杂的场景。因此，在本研究中，我们提出了一种不需要精确前景-背景分割的遮挡问题替代解决方案。在我们的方法中，一个虚拟对象与一个真实的场景混合，使虚拟对象可以被认为是在前景区域后面。为此，我们首先研究了人类的透明度知觉的心理物理实验的特点。然后根据实验结果提出了一种适用于真实的场景的混合算法。
One of the challenges in mixed reality (MR) applications is handling contradictory occlusions between real and virtual objects. The previous studies have tried to solve the occlusion problem by extracting the foreground region from the real image. However, real-time occlusion handling is still difficult since it takes too much computational cost to precisely segment foreground regions in a complex scene. In this study, therefore, we proposed an alternative solution to the occlusion problem that does not require precise foreground-background segmentation. In our method, a virtual object is blended with a real scene so that the virtual object can be perceived as being behind the foreground region. For this purpose, we first investigated characteristics of human transparency perception in a psychophysical experiment. Then we made a blending algorithm applicable to real scenes based on the results of the experiment.