Haptic Feedback Interaction Design and Implementation in Virtual Spinal Fixation Surgery System

2011 ◽  
Vol 219-220 ◽  
pp. 919-923
Author(s):  
Hua Zhu Song ◽  
Cong Cheng ◽  
Bin Zhao ◽  
Bo Liu
Keyword(s):  
Interaction Design ◽  
Haptic Feedback ◽  
Feedback System ◽  
Spinal Fixation ◽  
3D Interaction ◽  
Design And Implementation ◽  
Virtual Operation ◽  
Speed Up ◽  
Point Line ◽  
Graphics Rendering

This paper proposed the solution of haptic feedback interaction, which can be used for 3D interaction in Virtual Spinal Fixation Surgery System. We frist introduced the traditional Proxy-based Volume Haptics solution, and then proposed the Haptic feedback primitive based on it. There are four Haptic feedback primitive: point, line, plane and direct force. The haptic feedback system developing model is composed by Haptic Rendering and Graphics Rendering. The paper designed interface and classes based on this model, and then implemented the haptic feedback system at last. With this system, we can feel the load carring condition, speed up the virtual operation and provide data analysis more accurately.

3D Interaction Design and Implementation in Virtual Spinal Fixation Surgery System

2011 ◽  
Vol 474-476 ◽  
pp. 1943-1948 ◽  
Author(s):  
Hua Zhu Song ◽  
Bo Liu ◽  
Bin Zhao
Keyword(s):  
Interaction Design ◽  
Interactive Design ◽  
Design Solution ◽  
Spinal Fixation ◽  
3D Interaction ◽  
Design And Implementation

The 3D interaction design solution and implementation with VTK and QT were proposed in the system of virtual spinal fixation surgery. After discussing the background of 3D interaction technology, the principles of the interaction design about 3D interaction used in the system was given. According to the requirement of the system, the observer pattern and command pattern were adopted. And then 3D interactive design based on 3D Widgets was given in detail, the implementation view was shown. Finally, some implementation interface and five kinds of widgets design were displayed.

A Haptic Feedback System for Lower-Limb Prostheses

2008 ◽  
Vol 16 (3) ◽  
pp. 270-277 ◽  
Author(s):  
R.E. Fan ◽  
M.O. Culjat ◽  
Chih-Hung King ◽  
M.L. Franco ◽  
R. Boryk ◽  
...  
Keyword(s):  
Lower Limb ◽  
Haptic Feedback ◽  
Feedback System ◽  
Lower Limb Prostheses

scholarly journals Sole Mate: Safe Path-Finding by Obstacle Detection and Distance Estimation for the Blind

2019 ◽  
Vol 8 (6S4) ◽  
pp. 50-54
Keyword(s):  
Haptic Feedback ◽  
Distance Estimation ◽  
Feedback System ◽  
Obstacle Detection ◽  
Video Footage ◽  
System A ◽  
The World ◽  
Distance Sensor ◽  
Visually Challenged ◽  
Additional Device

The world has increased its demand for assistive technology (AT). There are a lot of researches and developments going on with respect to AT. Among the AT devices which are being developed, the need for a reliable and less expensive device which serves as an assistance for a visually challenged person is in serious demand all around the world. We, therefore, intend to provide a solution for this by constructing a device that has the capability to detect the obstacles within a given range for a visually challenged person and alerting the person about the obstacles. This involves various components like a camera for image detection, an ultrasonic distance sensor for distance estimation and a vibration motor which works on the principle of Haptic feedback and rotates with varied intensities depending on how far the obstacle is from the user. This paper presents a model which is a part of the footwear of the user and hence, no additional device is required to hold onto for assistance. The model involves the use of a microcontroller, a camera, to dynamically perceive the obstacles and a haptic feedback system to alert the person about the same. The camera dynamically acquires the real time video footage which is further processed by the microcontroller to detect the obstacles. Simultaneously, one more algorithm is being executed to estimate the distance with the help of an ultrasonic distance sensor. Depending on the distance, the frequency of the vibration motor, which acts as the output for notifying the user about the obstacle, is varied (haptic feedback). With this system, a visually challenged person will be able to avoid the obstacles successfully without the use of any additional device.

scholarly journals Evaluation of a Haptic Feedback System for Flight Envelope Protection

2019 ◽  
Author(s):  
Dirk Van Baelen ◽  
Joost Ellerbroek ◽  
Marinus M. van Paassen ◽  
Max Mulder
Keyword(s):  
Haptic Feedback ◽  
Feedback System ◽  
Flight Envelope ◽  
Envelope Protection

Design and Implementation of Modified Partial Product Reduction Tree for High Speed Multiplication

2013 ◽  
Vol 2 (1) ◽  
pp. 15
Author(s):  
Sachin B. Jadhav ◽  
Jayamala K. Patil ◽  
Ramesh T. Patil
Keyword(s):  
Binary Tree ◽  
High Speed ◽  
Hardware Implementation ◽  
Critical Path ◽  
Partial Product ◽  
Design And Implementation ◽  
Multiplication Operation ◽  
Multiplication Process ◽  
Major Bottleneck ◽  
Speed Up

This paper presents the details of hardware implementation of modified partial product reduction tree using 4:2 and 5:2 compressors. Speed of multiplication operation is improved by using higher compressors .In order to improve the speed of the multiplication process within the computational unit; there is a major bottleneck that is needed to be considered that is the partial products reduction network which is used in the multiplication block. For implementation of this stage require addition of large operands that involve long paths for carry propagation. The proposed architecture is based on binary tree constructed using modified 4:2 and 5:2 compressor circuits. Increasing the speed of operation is achieved by using higher modified compressors in critical path. Our objective of work is, to increase the speed of multiplication operation by minimizing the number of combinational gates using higher n:2 compressors. The experimental test of the proposed modified compressor is done using Spartan-3FPGA device (XC3S400 PQ-208). Using tree architectures for the partial products reduction network represent an attractive solution that is frequently applied to speed up the multiplication process. The simulation result shows 4:2 and 5:2 compressor output which is done using Questa Sim 6.4c Mentor Graphics tool.

Sign in / Sign up

Export Citation Format

Share Document