Direct computation of cubic spline interpolation for real-time image codec

2003 ◽  
Author(s):  
Trieu-Kien Truong ◽  
Shi-Huang Chen
Keyword(s):  
Real Time ◽  
Spline Interpolation ◽  
Cubic Spline ◽  
Direct Computation ◽  
Cubic Spline Interpolation ◽  
Real Time Image ◽  
Time Image

scholarly journals Real-time image rotation using B-spline interpolation on FPGA's board

1998 ◽  
Author(s):  
Cyril Berthaud ◽  
El-Bay Bourennane ◽  
Michel Paindavoine ◽  
Claude Milan
Keyword(s):  
Real Time ◽  
Spline Interpolation ◽  
Image Rotation ◽  
B Spline ◽  
Real Time Image ◽  
Time Image

Database for Real-Time Loading Path Prediction for Tube Hydroforming Using Multidimensional Cubic Spline Interpolation

2010 ◽  
Author(s):  
Angshuman Ghosh ◽  
Karan Deshmukh ◽  
Gracious Ngaile
Keyword(s):  
Real Time ◽  
Spline Interpolation ◽  
Fluid Pressure ◽  
Tube Hydroforming ◽  
Cubic Spline ◽  
Loading Path ◽  
Computational Time ◽  
Cubic Spline Interpolation ◽  
Loading Paths ◽  
Wide Range

Tube Hydroforming (THF) is a metal-forming process that uses a pressurized fluid in place of a hard tool to plastically deform a given tube into a desired shape. In addition to the internal pressure, the tube material is fed axially toward the die cavity. This process has various applications in the automotive, aerospace, and bicycle industries. Accurate coordination of the fluid pressure and axial feed, collectively referred to as a loading path, is critical to THF. Workable loading paths are currently determined by trial and error, which can be time consuming. This paper discusses an innovative technique for developing an interactive, real-time database that would be able to predict loading paths for typical classes of THF products and hence, reduce the computational time required. By classifying most of the commercial THF parts into families, parameters such as material properties, part geometry, and tribological factors were simulated by category and stored in the database. Multidimensional cubic spline interpolation was implemented to enable an end user to request from the database a loading path for a wide range of conditions. Test results from the database for different THF families were shown to approximate the simulated results. In addition, by reducing the computation time, the use of interpolation techniques eliminates the need for carrying out multiple simulations for similar THF parts.

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