Article
Computer Science, Software Engineering
Yijun Zhou, Jianan Zhao, Chen Luo
Summary: This paper proposes a method for reconstructing general 3D curves from stereo images, involving steps such as using B-spline curve fitting and constructing conic surfaces, as well as robust iterative algorithms for recovering 3D curves by obtaining intersections of corresponding conic surfaces.
Article
Computer Science, Software Engineering
Kinga Kruppa, Roland Kunkli, Miklos Hoffmann
Summary: Disk B-spline curves are a shape modeling tool that extends control points to control disks, allowing for easy modeling of regions or shapes with adjustable thickness. However, the resulting boundary curves often have unintended self-intersections or cusps, negatively affecting usability and artistic value. In this paper, we propose an iterative algorithm that uses an approximating circle skinning method to address this issue while preserving the advantageous properties of disk B-spline curves. Our method also results in smoother texturing of the shape around more curved sections.
COMPUTERS & GRAPHICS-UK
(2023)
Article
Computer Science, Information Systems
Nihat Arslan, Kali Gurkahraman
Summary: Parametric curves like Bezier and B-splines, originally developed for automobile body design, are now also used in image processing and computer vision. They can be used to reconstruct object shapes in images, including translations, scales, and rotations. These curves can be generated using a point set from the object's outer boundary.
CMC-COMPUTERS MATERIALS & CONTINUA
(2023)
Article
Physics, Fluids & Plasmas
Hiroyuki Yamaguchi, Shinsuke Satake, Motoki Nakata, Akihiro Shimizu, Yasuhiro Suzuki
Summary: A new numerical method using three-dimensional B-spline curves for designing external coils of a stellarator was presented. By optimizing control points, coil position, and current to minimize an objective function, optimized modular coils for CFQS and Wendelstein 7-X stellarators were successfully found, along with a specific pattern of helical coil arrangement.
Article
Mathematics
Paola Lamberti, Sara Remogna
Summary: In this paper, a method for constructing spline surfaces interpolating a B-spline curve network is proposed, allowing the presence of free parameters to model the interpolating surface. A constructive algorithm is provided for generating the spline surfaces in specific cases. Graphical results are presented.
Article
Acoustics
Junhao Ouyang, Zhongjun Qiu, Yuxuan Zhang
Summary: The ultrasonic horn is a core component in ultrasonic-assisted micro-injection molding. This study introduces a stepped ultrasonic horn design using cubic B-spline curve transition section optimized based on orthogonal analysis. The design achieves a more balanced performance in terms of desired frequency, amplification, and strength.
Article
Engineering, Mechanical
Benliang Zhu, Rixin Wang, Junwen Liang, Jianhao Lai, Hongchuan Zhang, Hai Li, Hao Li, Shinji Nishiwaki, Xianmin Zhang
Summary: In this study, an approach using moving end-constrained spline curves with variable widths is proposed for the explicit topology optimization of compliant mechanisms. The optimized design is obtained by optimizing the width of the spline curves and the position of the control points.
MECHANISM AND MACHINE THEORY
(2022)
Article
Computer Science, Artificial Intelligence
Lina Wang, Hejing Wang, Xin Yang, Yanfeng Gao, Xiaohong Cui, Binrui Wang
Summary: The improved ant colony algorithm addresses the issues of slow convergence and local optimal solutions in path planning. It introduces the Floyd algorithm to generate a guiding path, applies a fallback strategy and improves the heuristic function. It also proposes a multi-objective optimization function to consider various factors and optimize the quality of the path.
FRONTIERS IN NEUROROBOTICS
(2022)
Article
Engineering, Mechanical
Guangxi Li, Haitao Liu, Sijiang Liu, Juliang Xiao
Summary: This paper proposes a semi-analytical C-2 continuous corner smoothing method, utilizing inserted B-splines and specially designed quintic B-splines to achieve toolpath smoothing, thereby improving machining efficiency and quality in high-speed machining. Additionally, a feedrate scheduling and interpolation algorithm is suggested for trajectory generation.
MECHANISM AND MACHINE THEORY
(2022)
Article
Energy & Fuels
Weimin Li, Lei Wang, Awei Zou, Jingcao Cai, Huijuan He, Tielong Tan
Summary: In this paper, an improved probabilistic roadmap (IPRM) algorithm is proposed to solve the energy consumption problem of multi-UAV path planning with an angle. The algorithm optimizes the sampling space of the PRM algorithm and curves the rotation angle using the sampling third-order B-spline curve method to improve the explicitness and smoothness of the obtained path. The results of the simulation demonstrate the advantages of the IPRM algorithm over other algorithms in certain aspects.
Article
Mathematics
Ishtiaq Ali, Muhammad Yaseen, Muhammad Abdullah, Sana Khan, Fethi Bin Muhammad Belgacem
Summary: This study proposes a spline-based numerical method for solving Burgers' equation and investigates its stability and convergence. The method generates a smooth approximate solution that can be approximated at any point within the domain. The effectiveness of the proposed approach is validated through numerical studies.
Article
Automation & Control Systems
Kang Min, Fenglei Ni, Guojun Zhang, Xin Shu, Hong Liu
Summary: This paper proposes a smooth double-spline interpolation method for six-degree-of-freedom rotational robot manipulators, achieving the global C2 continuity of the robot trajectory. The method fits the tool center positions and quaternion orientations using cubic B-spline and quartic-polynomial-based quaternion spline curves, and introduces a parameter synchronization model for smooth movement. The results demonstrate the effectiveness of the method in generating global C2-continuity robot trajectories.
ASSEMBLY AUTOMATION
(2022)
Article
Chemistry, Multidisciplinary
Kyeong Ryong Kim, Aaron Lim, Jae Hyung Cho
Summary: This study uses an MLP with SGD among ANNs and RSSI data received from a Zigbee sensor to estimate the indoor location of an object. By placing FNs and MNs in a designated area and capturing position data and RSSI values, a comprehensive database is established. The precision of the results is enhanced by data augmentation and dividing the area into sectors using an ANN. The use of B-spline surface equations and comparing with traditional fingerprinting technique verifies the accuracy and cost-effectiveness of the method.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Changle Sun, Mingzhi Liu, Shihao Ge
Summary: This paper proposes a B-spline curve fitting method for ship line design based on hunger predation optimization (HPA), which improves the accuracy and modifiability of ship line design by replacing the offset table of discrete data points with a continuous curve description.
APPLIED SCIENCES-BASEL
(2022)
Article
Engineering, Mechanical
Mengwen Xu, Zhengxiang Huang, Xudong Zu, Qiangqiang Xiao, Xin Jia, Bin Ma
Summary: This study evaluates the application of Material Point Method (MPM) in modeling shaped charge jet (SCJ) formation and free flight. It finds that BSMPM is the most suitable method for calculating SCJs due to its exceptional continuity and alignment with experimental data. The mesoscale evolution of particles reveals that the material undergoes impact crushing and tensile tearing, forming a low-speed slug and a high-speed jet.
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
(2023)
Article
Computer Science, Software Engineering
Yan Chao Wang, Qian Zhang, Feng Lin, Chi Keong Goh, Hock Soon Seah
Article
Chemistry, Analytical
Li Wang, Ruifeng Li, Hezi Shi, Jingwen Sun, Lijun Zhao, Hock Soon Seah, Chee Kwang Quah, Budianto Tandianus
Article
Computer Science, Software Engineering
Kai Wang, Jianmin Zheng, Hock Soon Seah
COMPUTERS & GRAPHICS-UK
(2019)
Article
Chemistry, Analytical
Li Wang, Ruifeng Li, Jingwen Sun, Xingxing Liu, Lijun Zhao, Hock Soon Seah, Chee Kwang Quah, Budianto Tandianus
Proceedings Paper
Computer Science, Artificial Intelligence
Yan Chao Wang, Qian Zhang, Feng Lin, Hock Soon Seah
2019 IEEE PACIFIC VISUALIZATION SYMPOSIUM (PACIFICVIS 2019)
(2019)
Proceedings Paper
Optics
Yiliang Sui, Feng Lin, Hock Soon Seah
INTERNATIONAL FORUM ON MEDICAL IMAGING IN ASIA 2019
(2019)
Proceedings Paper
Optics
Jian Bin Khiew, Peng Hian Tan, Feng Lin, Hock Soon Seah
INTERNATIONAL FORUM ON MEDICAL IMAGING IN ASIA 2019
(2019)
Proceedings Paper
Optics
Budianto Tandianus, Hock Soon Seah, Tuan Dat Vu, Anh Tu Phan
INTERNATIONAL WORKSHOP ON ADVANCED IMAGE TECHNOLOGY (IWAIT) 2019
(2019)
Proceedings Paper
Optics
Qingtian Wang, Guochu Shou, Yaqiong Liu, Feng Lin, Hock Soon Seah
INTERNATIONAL WORKSHOP ON ADVANCED IMAGE TECHNOLOGY (IWAIT) 2019
(2019)
Proceedings Paper
Optics
Qian Zhang, Chung Soo Ahn, Jigang Liu, Yan Chao Wang, Feng Lin, Hock Soon Seah
INTERNATIONAL WORKSHOP ON ADVANCED IMAGE TECHNOLOGY (IWAIT) 2019
(2019)
Proceedings Paper
Optics
Yaqiong Liu, Jing Ling, Guochu Shou, Hock Soon Seah, Yihong Hu
INTERNATIONAL WORKSHOP ON ADVANCED IMAGE TECHNOLOGY (IWAIT) 2019
(2019)
Article
Psychology, Clinical
Adam C. Roberts, You Win Yeap, Hock Soon Seah, Elliot Chan, Chee-Kiong Soh, George Christopoulos
PSYCHOLOGICAL ASSESSMENT
(2019)
Article
Computer Science, Information Systems
Yaqiong Liu, Xin Lin, Guochu Shou, Hock Soon Seah
Proceedings Paper
Computer Science, Theory & Methods
Yee Xin Chiew, Hock Soon Seah, Santiago E. Montesdeoca
2018 INTERNATIONAL CONFERENCE ON CYBERWORLDS (CW)
(2018)
Proceedings Paper
Computer Science, Theory & Methods
Kai Wang, Jianmin Zheng, Hock Soon Seah
2018 INTERNATIONAL CONFERENCE ON CYBERWORLDS (CW)
(2018)
Article
Computer Science, Software Engineering
Rafael Maio, Tiago Araujo, Bernardo Marques, Andre Santos, Pedro Ramalho, Duarte Almeida, Paulo Dias, Beatriz Sousa Santos
Summary: Augmented Reality (AR) is a crucial technology in Industry 4.0 and smart manufacturing, particularly in the field of data monitoring. In this study, we developed a Pervasive AR tool for data monitoring, along with a web application for comparison purposes. User studies were conducted to gather feedback and evaluate the effectiveness of the systems, confirming the potential of Pervasive AR for data monitoring.
COMPUTERS & GRAPHICS-UK
(2024)
Article
Computer Science, Software Engineering
Berk Cebeci, Mehmet Bahadir Askin, Tolga K. Capin, Ufuk Celikcan
Summary: Despite advances in virtual reality technologies, extended VR sessions with head-mounted displays (HMDs) still face challenges in terms of comfort. In this study, a methodology using gaze-directed and visual saliency-guided paradigms for automatic stereo camera control in real-time interactive VR was proposed. The results showed that the gaze-directed approach outperformed the saliency-guided approach, both improving the overall depth feeling without hindering visual comfort in the tested virtual environments (VEs).
COMPUTERS & GRAPHICS-UK
(2024)
Article
Computer Science, Software Engineering
Ali Egemen Tasoren, Ufuk Celikcan
Summary: By developing the NOVAction engine, we have created the NOVAction23 dataset, which consists of highly diversified and photorealistic synthetic human action sequences. This dataset is significant in improving the performance of human action recognition.
COMPUTERS & GRAPHICS-UK
(2024)