STRUCTURED-LIGHT-BASED DEPTH RECONSTRUCTION USING LOW-LIGHT PICO PROJECTOR
Thomas Rittler, Florian H. Seitner, Margrit Gelautz · Journal of Multimedia · 2016
In this work we investigate an infrared structured light prototype which is intended for 3D reconstruction in resource-restricted mobile applications. We explore the constraints on working range and pattern resolution that are imposed by the low-light property of our single-shot set-up. While focusing on the most light-sensitive steps of the decoding work ow, we suggest adaptations of image recti cation, pattern generation and segmen- tation algorithms that are tailored to the speci c spatial and radiometric requirements of our system. We incorporate two disparity estimation techniques based on codeword look- up and foreground/background segmentation into our system and analyze the e ects of di erent algorithmic components on the overall runtime of our implementation.