Vision based distance measurement system using two-dimensional barcode for mobile robot

In future world, mobile robots for home services are expected to solve productivity problem. Especially, vision based mobile robots will be able to perform many tasks due to their characteristics of using camera. In this regard, landmark detection methods using a camera have been used in many robots because it is easy to measure the position. In this paper, we propose a distance measurement system by detecting two-dimensional barcode which can be used landmark for unmanned ground robot. In experiments, the position of the camera is expressed as (x, y) through the 2D barcode recognition in the 4·4 grid map.