P‐18.2: Relative Localization for Real‐time Adaptive Quadruped Mobile Projector System

Abstract

The technology of home projectors has matured significantly. However, most projectors are limited to static manual projectors, and projectors capable of automatic focusing and keystone correction are expensive. Furthermore, there is still room for development in the adaptability and real‐time performance of the screen distance and spatial angle measurement systems that projectors use for automatic focusing and keystone correction. Compared with the existing laser focusing technology, in this research, we present an alternative solution to acquire real‐time screen distance and spatial angle estimations using relative localization algorithms and an ultrasonic ranging sensor array. The relative localization information can then be employed for automatic focusing and keystone correction of a projector mounted on the mobile platform of an open‐source quadruped robot. The proposed approach will enhance the versatility and adaptability of the projector system, providing an economical solution for real‐time automatic focusing and keystone correction in mobile projector platforms.