REAL-TIME OPTICAL POSITION MONITORING USING A REFERENCE BAR

This paper presents a position monitoring system designed for a hand-held mine detector and based on a camera and an accelerometer. Real-time positioning during scanning allows the image reconstruction of the captured signals. Image representation enables object shape analysis and simplifies target localization. The system reports positions relatively to the bar with reference points placed on the ground by the deminer to indicate the safe limit. The present paper focuses on image processing techniques developed to localize the reference points. The required accuracy in positioning for our application has been evaluated to +/0.5 cm in each direction.