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How to refill Copic markers

Whether you’re using classic Copic inks or alternatives, this guide shows you how to easily refill your markers and keep them ...
Railway Gazette International

Virtual worksite marker boards approved for national use

UK: Following successful trials, geofencing technology company Tended has been granted a national deviation to the Rail Industry Rule Book by RSSB’s Traffic Operation & Management Standards Committee, ...
IEEE

Control of an Underactuated Quadrotor Using LQR and Visual Markers

Abstract: In this study, a robust Linear Quadratic Regulator (LQR) controller was developed and evaluated for the Bebop 2 quadrotor drone. Polytopic uncertainties in the dynamic model were taken into ...
IEEE

Accurate Estimation of Fiducial Marker Positions Using Motion Capture System

Abstract: In this paper, we present a method for aligning the coordinates of multiple cameras and sensors into a unified coordinate system using a motion capture system. Our simulated convenience ...