Image coding/decoding apparatus

Details Image coding/decoding apparatus Image coding/decoding apparatus

1996-10-24

1999-07-27

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348405, 348409, 348420, H04N 732

Patent

active

059299126

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 extrapolating 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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patent: 5491523 (1996-02-01), Sato
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Tetsurou Fujii, et al., "Topics On Wavelet Transform (5)," IEICE Technical Report (IE92-11), vol. 92, No. 19, Apr. 1992.
Takashi Nishimura, et al., "Real-Time Auto Face-Tracking System", A Study Report 93-04-04, Nov. 1993.
Jerome M. Shapiro, "Embedded Image Coding Using Zerotrees Of Wavelet Coefficients", IEEE Transactions on Signal Processing, vol. 41, No. 12, Dec. 1993.

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