Title :
Robust high-speed tracking against illumination changes for dynamic projection mapping
Author :
Sueishi, Tomohiro ; Oku, Hiromasa ; Ishikawa, Masatoshi
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
Abstract :
Dynamic Projection Mapping, projection-based AR for a moving object without misalignment by a high-speed optical axis controller by rotational mirrors, has a trade-off between stability of highspeed tracking and high visibility for a variety of projection content. In this paper, a system that will provide robust high-speed tracking without any markers on objects against illumination changes, including projected images, is realized by introducing a retroreflective background with the optical axis controller for Dynamic Projection Mapping. Low-intensity episcopic light is projected with Projection Mapping content, and the light reflected from the background is sufficient for high-speed cameras but is nearly invisible to observers. In addition, we introduce adaptive windows and peripheral weighted erosion to maintain accurate high-speed tracking. Under low light conditions, we examined the visual performance of diffuse reflection and retroreflection from both camera and observer viewpoints. We evaluated stability relative to illumination and disturbance caused by non-target objects. Dynamic Projection Mapping with partially well-lit content in a low-intensity light environment is realized by our proposed system.
Keywords :
augmented reality; lighting; reflection; retroreflectors; adaptive windows; diffuse reflection; dynamic projection mapping; high-speed cameras; high-speed optical axis controller; high-speed tracking; illumination; illumination changes; light reflection; low-intensity episcopic light; low-intensity light environment; low-light conditions; moving object; nontarget objects; observer viewpoints; partially-well-lit content; peripheral weighted erosion; projected images; projection mapping content; projection-based AR; retroreflection; retroreflective background; robust high-speed tracking; rotational mirrors; stability evaluation; visibility; visual performance; Cameras; High-speed optical techniques; Lighting; Mirrors; Optical control; Optical imaging; Target tracking; H.5.1 [Information Interfaces and Presentation]: Multimedia Information Systems — Artificial, augmented, and virtual realities; I.4.8 [Image Processing and Computer Vision]: Scene Analysis — Tracking;
Conference_Titel :
Virtual Reality (VR), 2015 IEEE
Conference_Location :
Arles
DOI :
10.1109/VR.2015.7223330