PREDICTIVE IMAGE ENCODING AND DECODING WITH PIXEL GROUP BASED QUANTIZATION

The present invention relates generally to images. More particularly, an embodiment of the present invention relates to the pixel group segmented quantization and de-quantization of the residual signal in layered coding of high dynamic range images. By assigning the pixels in the residual image to d...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SCHUEUER, Klaas Heinrich, SU, Guan-Ming, KRAETZER, Philipp, NEDDENS, Arion, KOWALIK, Uwe Michael
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The present invention relates generally to images. More particularly, an embodiment of the present invention relates to the pixel group segmented quantization and de-quantization of the residual signal in layered coding of high dynamic range images. By assigning the pixels in the residual image to different pixel groups based on the pixel value of the corresponding pixel in the decoded base layer signal, and by applying pixel group quantizing functions to assigned pixels a more efficient coding can be achieved.