Region coding using improved B-spline surface approximation

Region coding using improved B-spline surface approximation

A new arbitrary region coding algorithm using a B-spline surface is presented. Pixels in the coded region are regarded as valid image data, and the parameters of the B-spline surface are calculated under certain optimisation criteria. Instead of the traditional least squares error (LSE) criterion, a...

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Veröffentlicht in:Electronics letters 2000-01, Vol.36 (2), p.1-1
Hauptverfasser: Pan, Jinhui, Liao, Qingmin
Format: Artikel
Sprache:eng
Schlagworte:
Approximation
Coding
Computer simulation
Criteria
Errors
Least squares method
Mathematical analysis
Optimization
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Zusammenfassung:A new arbitrary region coding algorithm using a B-spline surface is presented. Pixels in the coded region are regarded as valid image data, and the parameters of the B-spline surface are calculated under certain optimisation criteria. Instead of the traditional least squares error (LSE) criterion, a least squares weighted error (LSWE) criterion is used as the approximation criterion. Simulation results show that the LSWE approach is much better for region coding than the LSE approach.
ISSN:0013-5194
1350-911X