Filtered Blending and Floating Textures: Ghosting-free Projective Texturing with Multiple Images

Whenever approximate 3D geometry is projectively texture-mapped from

different directions simultaneously, annoyingly visible aliasing artifacts are

the result. To prevent such ghosting in projective texturing and image-based rendering, we propose two different GPU-based rendering strategies: filtered blending and floating textures. Either approach is able to cope with imprecise 3D geometry as well as inexact camera calibration. Ghosting artifacts are effectively eliminated at real-time rendering frame rates on standard graphics hardware. With the proposed rendering techniques, better-quality rendering results are obtained from fewer images, coarser 3D geometry, and less accurately calibrated images.