Visibility-based blending for real-time applications

Abstract

There are many situations in which virtual objects are presented half-transparently on a background in real time applications. In such cases, we often want to show the object with constant visibility. However, using the conventional alpha blending, visibility of a blended object substantially varies depending on colors, textures, and structures of the background scene. To overcome this problem, we present a framework for blending images based on a subjective metric of visibility. In our method, a blending parameter is locally and adaptively optimized so that visibility of each location achieves the targeted level. To predict visibility of an object blended by an arbitrary parameter, we utilize one of the error visibility metrics that have been developed for image quality assessment. In this study, we demonstrated that the metric we used can linearly predict visibility of a blended pattern on various texture images, and showed that the proposed blending methods can work in practical situations assuming augmented reality.

Don’t Bother Me: How to Handle Content-Irrelevant Objects in Handheld Augmented Reality

“…In interactive AR applications, there are many situations in which VOs are presented semi-transparent on the real background [11]. Fukiage et al used transparent representation to handle natural visualization of depth ordering between VOs and ROs for arbitrary scenes [10].…”

A survey of diminished reality: Techniques for visually concealing, eliminating, and seeing through real objects

“…Buchmann et al performed a visibility evaluation of effects for transparency changes on worker's hands at the perspective during block-stacking tasks [76]. Fukiage et al proposed a framework for optimizing the transparency of each pixel in a superimposed virtual object [77].…”

P‐51: Student Poster: Color Contrast Enhanced Rendering for Optical See‐Through Head‐Mounted Displays with Optimized Display Power

“…Mixed reality devices and corresponding services are becoming prolific areas. Numerous solutions have strived to enable high contrast color perception for OST-HMDs, such as color reproduction [1,2], color correction [3,4], light filtering [5,6,7], visibility improvement [8,9], and color contrast enhancement [10], etc. Among these solutions, hardware-based designs provide an excellent experience.…”