Pseudo-transparent tablet based on 3D feature tracking

This demonstration shows geometrically consistent image rendering that realizes pseudo-transparency in tablet-based augmented reality. The rendering method is based on the homography estimated by feature tracking and face detection using on-board rear and front cameras, respectively. This configuration is the most practical for typical off-the-shelf tablets in the sense that it does not require any special devices or designed environments. Although the local misalignment of images rectified by homography is an unavoidable artifact in a non-planar scene, the rendered images are globally consistent with the real scene. This is the first demonstration in which such pseudo-transparency can be experienced in an unprepared environment.