Title :
A digital convergence system using cubic splines
Author :
Oh, Chae Gon ; Chung, Yunmo ; Hong, Chang Wan ; Hong, Sung Pyo
Author_Institution :
Dept. of Electr. & Electron., Korea Polytech. Univ., South Korea
fDate :
11/1/1999 12:00:00 AM
Abstract :
In a convergence control system with Lagrange interpolation of high degree, the unexpected movement problem of other sampling points in the case of a change of a seed point was found. This paper proposes a new digital convergence system based on cubic spline interpolation to increase the quality of interpolation as well as to solve the problem. The system was modeled in VHDL, implemented with a chip, and applied for projection TVs.
Keywords :
application specific integrated circuits; convergence; digital control; hardware description languages; interpolation; splines (mathematics); telecommunication control; television equipment; Lagrange interpolation; VHDL; chip; cubic splines; digital convergence system; projection TV; sampling points; seed point; unexpected movement problem; Application specific integrated circuits; Cathode ray tubes; Control systems; Convergence; Data systems; Interpolation; Lagrangian functions; Polynomials; Sampling methods; TV;
Journal_Title :
Consumer Electronics, IEEE Transactions on
