Apriori Rate Allocation in Wavelet-Based Image Compression

Apriori Rate Allocation in Wavelet-Based Image Compression

We present a rate allocation scheme that pre-computes optimal quantisation bucket sizes based on a mathematical model of wavelet transformed natural images prior entropy encoding. We combine the proposed scheme with the JPEG2000 embedded rate-allocator and find in our experiments that it is able to...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Grottke, S., Richter, T., Seiler, R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Animation
Cameras
Content based retrieval
Humans
Image coding
IP networks
Nonhomogeneous media
Real time systems
Streaming media
Technological innovation
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:We present a rate allocation scheme that pre-computes optimal quantisation bucket sizes based on a mathematical model of wavelet transformed natural images prior entropy encoding. We combine the proposed scheme with the JPEG2000 embedded rate-allocator and find in our experiments that it is able to increase JPEG2000 encoding speed by a factor of two without loosing image quality
DOI:10.1109/AXMEDIS.2006.12