Method and apparatus to perform optimal visually-weighed quantization of time-varying visual sequences in transform space

Method and apparatus to perform optimal visually-weighed quantization of time-varying visual sequences in transform space

The use of the three-dimensional DCT as a key compression technology requires development of an entirely new quantizing mechanism. The embodiment described herein uses a Human Visual Model to develop quantizers based on a combination of descriptive characteristics of the video source, enabling indep...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Westwater, Raymond John
Format: Patent
Sprache:eng
Schlagworte:
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The use of the three-dimensional DCT as a key compression technology requires development of an entirely new quantizing mechanism. The embodiment described herein uses a Human Visual Model to develop quantizers based on a combination of descriptive characteristics of the video source, enabling independent derivation of said quantizers in both encoder and decoder sides of the compression and playback process.