Because of their construction and flexibility, industrial robots are suitable to be used, with a laser source and an optical fiber, for laser welding of 3D products. However, the positioning accuracy of robots are insufficient for laser welding. Also the product and clamping tolerances are too wide for laser welding. These problems can be solved by applying sensors, which measure the location o...

In this paper we present an active exploration strategy for a mobile robot navigating in 3D. The aim is to control a moving robot that autonomously builds a visual feature map while at the same time optimises its localisation in this map. The technique chooses the most appropriate commands maximising the information gain between prior states and measurements, while performing 6DOF bearingonly S...

We present a new motion estimation framework and apply it to omni-directional imagery. Our method estimates motions incrementally using an Implicit Extended Kalman Filter (IEKF). Each individual feature provides partial information about the camera motion. The motion estimate is incrementally improved as each feature is processed, similar to the SCAAT approach. The SCAAT method was developed fo...

Usability of QR Code in Augmented Reality system has been used for digital content accessible publicly. However, QR Code in AR system still has imprecision tracking. In this article we propose merging QR Code within conventional marker and backpropagation neural network (BPNN) algorithm to recognizing QR Code Finder Pattern. The method which our chosen to approaching conventional marker. The re...

Recent studies highlighted the benefits of a support infrastructure located in Cislunar environment, which would ease design forthcoming space missions with favorable access from and to lunar surface, Earth many interplanetary destinations. Multi-body orbits rose peculiar interest were selected stage human-robotic exploration outpost; family Near Rectilinear Halo Orbits (NRHO), particular, appe...

The robots pay important role in all parts of our life. Hence, the modeling robot is essential to develop performance specification. Robot model six degree freedom (6DoF) manipulator implemented numerically using model-based technique. kinematic analysis and simulation were studied with Inverse kinematics through Denevit Hartenberg method. Matrix transformation method used this work order separ...

This study aimed to validate a bespoke 3D-printed phantom for use in quality assurance (QA) of 6 degrees-of-freedom (6DoF) treatment couch. A novel design comprising main body with internal cube structures, was fabricated at five centres using Polylactic Acid (PLA) material, an additional produced incorporating PLA-stone hybrid material. Correctional setup shifts were determined image registrat...

BRIC (BRain Injury Criterion) and RIC (Rotational Injury Criterion) have been proposed as Mild Traumatic Brain Injury (MTBI) predictors. Both predictors had been verified with football players' head impact data. This study employed two human brain Finite Element (FE) models of THUMS ver.3 and SIMon ver.4 to find out correlations between the MTBI predictors and FE-based brain injury predictors s...

In this paper, we propose and validate a novel approach to solve the Simultaneous Localization and Mapping (SLAM), focused on its application with wearable devices. In order to do so, we use a stereo vision camera as the unique sensor that provides semi-dense information of the environment (appearance and range data). A first approximation of the trajectory is given by an egomotion algorithm, t...

This paper presents a method for fast calculation of the egomotion done by a robot using visual features. The method is part of a complete system for automatic map building and Simultaneous Location and Mapping (SLAM). The method uses optical flow in order to determine if the robot has done a movement. If so, some visual features which do not accomplish several criteria are deleted, and then th...