A non-contact technique using electrostatics to sense three-dimensional hand motion for human computer interaction

2015 ◽  
Vol 77 ◽  
pp. 101-109 ◽  
Author(s):  
Kai Tang ◽  
Xi Chen ◽  
Wei Zheng ◽  
Qingwei Han ◽  
Pengfei Li
Keyword(s):  
Human Computer Interaction ◽  
Three Dimensional ◽  
Hand Motion ◽  
Computer Interaction

scholarly journals HUMANOID LOCOMOTION MANIPULATED USING DYNAMIC FINGER GESTURES

2013 ◽  
pp. 170-173
Author(s):  
HARI KRISHNAN R ◽  
VALLIKANNU A. L
Keyword(s):  
Human Computer Interaction ◽  
Degrees Of Freedom ◽  
Motion Tracking ◽  
Human Robot Interaction ◽  
Robot Interaction ◽  
Hand Motion ◽  
Computer Interaction

The fundamental technologies for Human-Computer Interaction are Hand motion tracking and Gesture Identification. The same technology has been adapted for Human-Robot Interaction. This paper discusses a natural methodology for Human-Robot Interaction. In the proposed system, the accelerometers at the fingers, tracks specific gestures. These gestures are identified by the controller, which in turn controls the actuators that results in Humanoid walking. The Humanoid under consideration has 8 Degrees of Freedom.

Study on Technology of Triangular Polyhedron 3D Human-Computer Interaction Modeling

2014 ◽  
Vol 962-965 ◽  
pp. 2721-2725
Author(s):  
Wen Li Wu ◽  
Wei He ◽  
Bin Feng ◽  
Shi Chen
Keyword(s):  
Human Computer Interaction ◽  
Three Dimensional ◽  
Data Interpretation ◽  
3D Models ◽  
Geometric Transformation ◽  
Rubber Membrane ◽  
Interaction Modeling ◽  
Three Dimensional Models ◽  
Global And Local ◽  
Computer Interaction

To simulate arbitrary three dimensional models, this technology of triangular polyhedron 3D human-computer interaction modeling was proposed. Achieving the technology has following three steps. Firstly, the coordinates of 3D nodes were projected onto the plane by the method of 3D geometric transformation. Then, this information which was made up of triangles and sides and nodes was picked up by 3D picking methods. Finally, the technique of rubber membrane was used to modify the nodes of triangles, and the 3D modification was achieved by means of anti-transformation. Moreover, the method of global and local mesh encryption was also designed to modify 3D topology structure, which was aimed at better simulate complex 3D models. This technology combined geophysical forwarding compute and formed the method of data-interaction simulation, which provided a means of visualization for geophysical data interpretation.

Contactless interactive control technology with a switching system based on Butterworth filter and modified strong tracking Kalman filter

2021 ◽  
pp. 095965182110033
Author(s):  
Yifan Fang ◽  
Zhong Chen ◽  
Lei Yu ◽  
Shumin Fei
Keyword(s):  
Kalman Filter ◽  
Human Computer Interaction ◽  
Three Dimensional ◽  
Interactive System ◽  
Interactive Control ◽  
Filtering Algorithm ◽  
Interaction Field ◽  
Time Interaction ◽  
Processing Step ◽  
Computer Interaction

In the human–computer interaction field, a contactless interaction with large screens through gestures is very representative, and the recognition and filtering of gesture images are very important tasks. Aiming at solving the problems of interference and positioning drift of three-dimensional lidar sensors, this article proposes a contactless interactive control system based on switching filtering algorithm, which selects the Butterworth filtering and the modified strong tracking Kalman filter to be used in the filtering process. The proposed interactive system extracts and optimizes user gestures, maps the gestures to the screen, simulates mouse operations, and enables operations such as selection, sliding, zooming in and out, and others. This switching filtering algorithm effectively solves the accuracy problem of a single filtering algorithm and the rapidity of complex filtering algorithms in the signal processing step, and greatly improves the interaction accuracy without sacrificing too much processing time. The experimental results show that by applying the proposed switching filtering algorithm to a contactless human–computer interaction system, the system can achieve smooth gesture interaction. The proposed system can perform real-time interaction with multiple people, which fully verifies the effectiveness and superiority of the proposed algorithm.

scholarly journals Research on 3D International River Visualization Simulation Based on Human-Computer Interaction

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Shuanhu Li ◽  
Jun Yang ◽  
Ziwen Zhang
Keyword(s):  
Human Computer Interaction ◽  
Processing Speed ◽  
Three Dimensional ◽  
Virtual Reality Technology ◽  
Huge Data ◽  
Simulation Based ◽  
Visual Interaction ◽  
International River ◽  
The Mathematical Model ◽  
Computer Interaction

With the development of digitalization in various fields, the water conservancy field is gradually developing digital three-dimensional visualization research to promote the development of digital watershed construction. This paper deeply analyzes and discusses the theory and application of three-dimensional visualization of river water scenes and realizes an interactive visual simulation system based on virtual reality technology, which simulates simulation and operation management, which can greatly accelerate the data. The processing speed makes the huge data be effectively utilized to provide visual interaction means for numerical simulation and data analysis, improve the efficiency of numerical calculation, and realize human-computer interaction communication, so that people can observe the phenomena and laws that are difficult to observe by traditional methods. The rationality of the mathematical model is analyzed for effectiveness.

scholarly journals A New Method of Achieving Single Three-Dimensional Building Model Automatically Based on Oblique Photography Data

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Defu Che ◽  
Zonghui Li ◽  
Yining Liu ◽  
Renqing Zhong ◽  
Baodong Ma
Keyword(s):  
Human Computer Interaction ◽  
Three Dimensional ◽  
Point Clouds ◽  
Contour Line ◽  
New Method ◽  
Difference Threshold ◽  
Height Difference ◽  
Building Model ◽  
Building Facade ◽  
Computer Interaction

Operating and managing single three-dimensional building model individually are critical in the application of oblique photography models. However, these models are usually complete and continuous, and the single three-dimensional building model in these models cannot be managed individually. Generally, achieving a single three-dimensional building model requires a human-computer interaction to determine the cutting range, but this process is time-consuming and inefficient. To overcome this problem, this study proposed a new method for automatically achieving single three-dimensional building model without the need for human-computer interaction. First, the point clouds of an oblique photography model are divided into virtual grids, and the point clouds in each virtual grid are seen as a whole. In this way, the number of point clouds involved in the calculation is reduced, thereby improving computing efficiency. Second, the point clouds of a building facade are extracted by setting the height difference. By comparing the height difference between the highest point and the lowest point of the grid with height difference threshold, all point clouds in the grid that do not meet the requirements are eliminated. Third, the point clouds of the building facade are classified, and the contour line is extracted by the classified point clouds. Finally, the single three-dimensional building model is achieved by reconstructing the triangles that intersect with the extracted contour line. Experimental results show that the proposed method can effectively achieve single bodies automatically from an oblique photography building model. This method is then useful for achieving single three-dimensional building model from massive oblique photography data.

Sign in / Sign up

Export Citation Format

Share Document