Time-consistency of disocclusion filling algorithms in Depth Image Based Rendering

Abstract

Depth Image Based Rendering (DIBR) is a technique to render virtual views from the video-plus-depth 3D scene representation. A common phenomenon in DIBR are disocclusions, i.e., unfilled areas that occur in the rendered views. The performance of disocclusion filling algorithms is usually only tested in terms of their ability of finding plausible fillings frame-by-frame. Time-consistency, however, is a crucial property in video processing. Missing time-consistency results in disturbing flicker artifacts. With our work, we want to point out the existence of this problem. We also introduce a measure to quantify the amount of flicker for a first study of this phenomenon.