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1. US20070242895 - Scalable encoding method and apparatus, scalable decoding method and apparatus, programs therefor, and storage media for storing the programs

官庁 アメリカ合衆国
出願番号 11578277
出願日 04.10.2005
公開番号 20070242895
公開日 18.10.2007
特許番号 7778474
特許付与日 17.08.2010
公報種別 B2
IPC
G 物理学
06
計算;計数
K
データの認識;データの表示;記録担体;記録担体の取扱い
9
印刷文字,手書き文字または幾何学図形の読取りまたは認識のための方法または装置,例.指紋のためのもの
36
画像の前処理,すなわち画像の同定に関する決定をしないで画像情報の処理をするもの
CPC
H04N 19/115
H04N 19/147
H04N 19/15
H04N 19/37
H04N 19/63
出願人 Nippon Telegraph and Telephone Corporation
発明者 Bandou Yukihiro
Takamura Seishi
Yashima Yoshiyuki
代理人 Harness, Dickey &; Pierce, PLC
優先権情報 2004293395 06.10.2004 JP
発明の名称
(EN) Scalable encoding method and apparatus, scalable decoding method and apparatus, programs therefor, and storage media for storing the programs
要約
(EN)

A scalable encoding method for decomposing an image signal into signals assigned to layers so as to encode the image signal includes encoding an image signal of at least one target layer among the layers based on an amount of codes allocated to the target layer; outputting a residual signal of the target layer corresponding to a difference between the pre-encoded image signal and an image signal decoded from the encoded image signal; determining a target amount of codes allocated for encoding the residual signal based on the residual signal, an amount of codes allocated to an objective layer, and an image signal of the objective layer; encoding the residual signal based on the determined target amount of codes; revising the amount of codes allocated to the objective layer based on the target amount of codes; and encoding the image signal of the objective layer based on the revised amount.