Colour face recognition using fuzzy quaternion-based discriminant analysis
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Machine Learning and Cybernetics"
DOI: 10.1007/s13042-017-0722-4
Abstract: Colour information has been shown to be effective in improving object recognition performance. In this paper, we propose a novel quaternion-based colour model with enhanced fuzzy parameterized discriminant analysis to perform face recognition. The proposed… read more here.
Keywords: quaternion; quaternion based; colour; discriminant analysis ... See more keywords
Quaternion-Based Adaptive Backstepping RFWNN Control of Quadrotors Subject to Model Uncertainties and Disturbances
Sign Up to like & getrecommendations! Published in 2018 at "International Journal of Fuzzy Systems"
DOI: 10.1007/s40815-018-0471-x
Abstract: This paper presents a quaternion-based adaptive backstepping control method using recurrent fuzzy wavelet neural network (RFWNN) for regulation and trajectory tracking of quadrotors subject to model uncertainties and disturbances. For the controller synthesis, a more… read more here.
Keywords: quaternion; rfwnn; quaternion based; control ... See more keywords
Quaternion-based disorientation coloring of orientation maps.
Sign Up to like & getrecommendations! Published in 2017 at "Ultramicroscopy"
DOI: 10.1016/j.ultramic.2017.06.021
Abstract: The authors of the present work propose a color coding technique using quaternions for the display of crystallographic orientation data such as EBSD maps. The main difference to existing color coding techniques in this field… read more here.
Keywords: orientation; quaternion based; based disorientation; disorientation ... See more keywords
Quaternion-based state-dependent differential Riccati equation for quadrotor drones: Regulation control problem in aerobatic flight
Sign Up to like & getrecommendations! Published in 2022 at "Robotica"
DOI: 10.1017/s0263574722000091
Abstract: The quaternion is a powerful and common tool to avoid singularity in rotational dynamics in three-dimensional (3D) space. Here it has been particularly used as an alternative to Euler angles and rotation matrix. The application… read more here.
Keywords: quaternion based; state dependent; quaternion; control ... See more keywords
Dual-Quaternion-Based Translation-Rotation-Vibration Integrated Dynamics Modeling for Flexible Spacecraft
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Aerospace Engineering"
DOI: 10.1061/(asce)as.1943-5525.0000969
Abstract: AbstractIn this paper, we investigate a leader-follower spacecraft formation flying (SFF) mission, which is comprised of two identical spacecraft carrying large-scale antenna arrays. The mission re... read more here.
Keywords: rotation vibration; spacecraft; quaternion based; translation rotation ... See more keywords
Combined Quaternion-Based Error State Kalman Filtering and Smooth Variable Structure Filtering for Robust Attitude Estimation
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2946609
Abstract: This paper presents a novel robust quaternion-based error state Kalman filter (ESKF) for coping with modeling uncertainty in inertial measurement unit (IMU)-based attitude estimation. The smooth variable structure filter (SVSF) has recently been proposed and… read more here.
Keywords: state kalman; svsf; eskf; quaternion based ... See more keywords
Quaternion-Based Attitude Stabilization via Discrete-Time IDA-PBC
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Control Systems Letters"
DOI: 10.1109/lcsys.2022.3173509
Abstract: In this letter, we propose a new sampled-data controller for stabilization of the attitude dynamics at a desired constant configuration. The design is based on discrete-time interconnection and damping assignment (IDA) passivity-based control (PBC) and… read more here.
Keywords: quaternion based; time; stabilization; discrete time ... See more keywords
Dual-Quaternion-Based Fault-Tolerant Control for Spacecraft Tracking With Finite-Time Convergence
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Control Systems Technology"
DOI: 10.1109/tcst.2016.2603070
Abstract: Results are presented for a study of dual-quaternion-based fault-tolerant control for spacecraft tracking. First, a six-degrees-of-freedom dynamic model under a dual-quaternion-based description is employed to describe the relative coupled motion of a target-pursuer spacecraft tracking… read more here.
Keywords: dual quaternion; fault tolerant; quaternion based; control ... See more keywords