Hybrid journal (It can contain Open Access articles) ISSN (Print) 2045-1059 - ISSN (Online) 2045-1067 Published by Inderscience Publishers[439 journals]
Please help us test our new pre-print finding feature by giving the pre-print link a rating. A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Authors:Hongtao Yu, Qiong Wu, Mengni Zhou, Qi Li, Jiajia Yang, Satoshi Takahashi, Yoshimichi Ejima, Jinglong Wu Pages: 161 - 171 Abstract: Previous studies have reported that immersion experience can be improved by pairing it with auditory-visual stimuli; however, whether the semantic relationship of auditory-visual stimuli can also modulate visual virtual experience remains unclear. By using the psychophysics method, this study investigates the category performance under three different crossmodal semantic reliability conditions: semantically reliable, semantically unreliable and semantically uncertain. The results revealed a faster category speed for the crossmodal semantically reliable condition regardless of the category, indicating that crossmodal semantic reliability led to sufficient multisensory integration. In particular, under crossmodal semantically unreliable conditions, category speed was faster for non-living stimuli, indicating robust representation for non-living objects. These results indicate that adopting semantically reliable visual and auditory stimuli as multisensory inputs can efficiently improve the multisensory immersion experience. Keywords: audiovisual integration; semantic reliability; semantic category; selective attention; multisensory presence; virtual reality Citation: International Journal of Mechatronics and Automation, Vol. 9, No. 4 (2022) pp. 161 - 171 PubDate: 2023-04-19T23:20:50-05:00 DOI: 10.1504/IJMA.2022.130399 Issue No:Vol. 9, No. 4 (2023)
Please help us test our new pre-print finding feature by giving the pre-print link a rating. A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Authors:Peng Shi, Shuxiang Guo, Xiaoliang Jin Pages: 172 - 179 Abstract: Vascular interventional surgery requires surgeon to be highly skilled at manipulating the surgical tools to avoid damaging blood vessel. Virtual reality (VR) interventional training systems were developed to reduce the training cost and improve training. For virtual interventional radiology, centreline of the vasculature is often used to reconstruct vasculature and detect the contact between surgical tools and blood vessel wall. In this paper, we introduce a centreline extraction method which is suitable for the vasculature mesh. The extraction method assume that the vasculature mesh is a set of continuous cylindrical shapes. The centreline is formed by centre point of the cylindrical shapes, and the centreline is satisfied rotational symmetry. In addition, we propose a pre-processing strategy to convert the mesh representation to point cloud representation. This strategy can merge duplicate vertex and normal vector for vasculature mesh while preserving the integrity of the vasculature. The performance of our method is experimentally validated. Keywords: centreline extraction; rotational symmetry axis; vasculature mesh; virtual interventional radiology; VR interventional training system Citation: International Journal of Mechatronics and Automation, Vol. 9, No. 4 (2022) pp. 172 - 179 PubDate: 2023-04-19T23:20:50-05:00 DOI: 10.1504/IJMA.2022.130400 Issue No:Vol. 9, No. 4 (2023)
Please help us test our new pre-print finding feature by giving the pre-print link a rating. A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Authors:Rajmeet Singh, Manvir Singh Lamba, Tarun Kumar Bera Pages: 180 - 191 Abstract: This research work presents the design of a position control algorithm for trajectory tracking of a four-degree-of-freedom robotic manipulator. The linkage mechanism of the manipulator is based on a parallelogram mechanism and in this manipulator, three parallelogram mechanisms are used. First, the CAD and the kinematic model of the manipulator are developed. The bond graph (BG) approach is applied to develop the dynamic model of the robotic arm based on kinematic equations. The BG model of parallelogram linkage is then compared with the Simulink model of parallelogram linkage and results are validated. Then, a position control algorithm is proposed to follow a set of trajectory planning applications. A GRBL-Arduino based controller is used to estimate the position of the end-effector as per the user's requirements. The simulation and experimentation work are performed for 3D trajectory tracking applications. The robotic arm is used for pick and place operation within the workspace. Keywords: 4-DOF robotic arm; position control; GRBL controller; bond graph approach; Simulink; pick and place Citation: International Journal of Mechatronics and Automation, Vol. 9, No. 4 (2022) pp. 180 - 191 PubDate: 2023-04-19T23:20:50-05:00 DOI: 10.1504/IJMA.2022.130398 Issue No:Vol. 9, No. 4 (2023)
Please help us test our new pre-print finding feature by giving the pre-print link a rating. A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Authors:S. Joseph Winston, P.V. Manivannan Pages: 192 - 209 Abstract: Calibration plays a vital role in maintaining the positing accuracy of the deployable type of industrial robots. A fully automatic deployable type of robotic manipulator has been developed for inspecting the steam tubes of a steam generator (SG). It uses damped least squares-based kinematic algorithm to position the tube inspection probe exactly over the centre of individual steam-tubes and pushes probe into the tube for detecting any flaws. As direct global referencing is not possible inside the space constrained SG, a novel robot calibration methodology has been developed that uses vision data for recognising the reference V-patterns of the steam tubes arrangement through a vector approach. Robotic arm kinematic errors are corrected using rigid body parameters estimation by exploiting the joint motor encoders used for sensing the pose. Further, using visual servoing technique, high order positioning accuracy of inspection probe has been achieved to reach every steam tube centre for inspection. Keywords: steam generator tube inspection robot; rigid body parameters; damped least squares inverse kinematics; kinematic errors; pattern matching; visual servoing Citation: International Journal of Mechatronics and Automation, Vol. 9, No. 4 (2022) pp. 192 - 209 PubDate: 2023-04-19T23:20:50-05:00 DOI: 10.1504/IJMA.2022.130412 Issue No:Vol. 9, No. 4 (2023)
Please help us test our new pre-print finding feature by giving the pre-print link a rating. A 5 star rating indicates the linked pre-print has the exact same content as the published article.
Authors:Ruochen An, Shuxiang Guo, Chunying Li, Tendeng Awa Pages: 210 - 218 Abstract: The traditional underwater sample collection task is performed by an underwater vehicle equipped with a rigid multi-link arm, which has caused great interference. In this paper, a bio-inspired father-son robot is designed and developed for sample acquisition. Underwater motion control of the father-son robot is of vital importance, especially when it needs to work underwater. At first, we focused on developing a novel father-son system to perform an underwater sample acquisition task. The hydrodynamics analysis of the father robot is finished using FLUENT to obtain the relationship between water resistance and the speed of the underwater robot. After that, the control strategy of thrust from the thrusters is proposed using kinematical analysis of the underwater robot, according to the difference between the current depth and the target depth. Simulation and experiments verify the effectiveness of the proposed motion control strategy. Keywords: father-son robot; spherical underwater robot; hydrodynamic analysis; motion control strategy Citation: International Journal of Mechatronics and Automation, Vol. 9, No. 4 (2022) pp. 210 - 218 PubDate: 2023-04-19T23:20:50-05:00 DOI: 10.1504/IJMA.2022.130414 Issue No:Vol. 9, No. 4 (2023)
Hybrid journal (It can contain Open Access articles)
[439 journals]
