Image coding/decoding apparatus utilizing sub-band encoding

Details Image coding/decoding apparatus utilizing sub-band encoding Image coding/decoding apparatus utilizing sub-band encoding

1999-04-19

2000-10-03

Lee, Richard

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

37524025, H04N 732

Patent

active

061283444

ABSTRACT:
An image coding/decoding apparatus offers a visually high quality image at a very low bit rate. The image is divided into images for individual regions using its shape information. Each region is made into rectangle blocks by an extrapolation process, whereby each region can be sub-band coded. Finally, multiple extrapolated images which were formed by the extrapolating process, are appropriately coded or quantized.

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