Title:
IMAGE ENCODING DEVICE AND IMAGE DECODING DEVICE
Document Type and Number:
Japanese Patent JP3249729
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain visually sufficient picture quality in very low bit rate image encoding.
SOLUTION: Sub-band encoding 105 of each area is enabled by making each area rectangular through dividing 102 and interpolating processing 103 of an image for each area while using area information. Besides, by performing suitable encoding or quantizing to plural interpolated images prepared by performing interpolating processing, an image visually high in picture quality can be obtained in very low bit rate.
More Like This:
Inventors:
Tomoko Aono
Norio Ito
Hiroyuki Katata
Hiroshi Kusao
Norio Ito
Hiroyuki Katata
Hiroshi Kusao
Application Number:
JP27550095A
Publication Date:
January 21, 2002
Filing Date:
October 24, 1995
Export Citation:
Assignee:
Sharp Corporation
International Classes:
H04N5/92; H03M7/30; H03M7/40; H04N1/41; H04N19/00; H04N19/20; H04N19/21; H04N19/50; H04N19/503; H04N19/51; H04N19/563; H04N19/61; H04N19/635; H04N19/80; H04N19/85; H04N19/91; (IPC1-7): H04N7/24; H04N1/41
Domestic Patent References:
| JP389792A | ||||
| JP3268679A | ||||
| JP6197324A |
Other References:
Ｈ．Ｈ．Ｃｈｅｎ，Ｍ．Ｒ．Ｃｉｖａｎｌａｒ ａｎｄ Ｂ．Ｇ．Ｈａｓｋｅｌｌ，“Ａ Ｂｌｏｃｋ Ｔｒａｎｓｆｏｒｍ Ｃｏｄｅｒ ｆｏｒ Ａｒｂｉｔｒａｒｉｌｙ Ｓｈａｐｅｄ Ｉｍａｇｅ Ｓｅｇｍｅｎｔｓ”，Ｐｒｏｃｅｅｄｉｎｇｓ ｏｆ １ｓｔ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ｉｍａｇｅ Ｐｒｏｃｅｓｓｉｎｇ，ＩＥＥＥ，Ｎｏｖ．１９９４，Ｖｏｌ．１，ｐ．８５−８９
栄藤、ブン、角野，「階層表現と多重テンプレートを用いた画像符号化」，電子情報通信学会技術研究報告，Ｖｏｌ．９４，Ｎｏ．５４９，ｐ．９９−１０６，１９９５年３月
角野、津田、ブン、栄藤，「透明度情報を領域表現に用いた画像符号化」，情報処理学会研究報告 オーディオビジュアル複合情報処理 ９５−ＡＶＭ−９，Ｖｏｌ．９５，Ｎｏ．６４，９−１（ｐ．１−８），１９９５年７月
栄藤、ブン、角野，「階層表現と多重テンプレートを用いた画像符号化」，電子情報通信学会技術研究報告，Ｖｏｌ．９４，Ｎｏ．５４９，ｐ．９９−１０６，１９９５年３月
角野、津田、ブン、栄藤，「透明度情報を領域表現に用いた画像符号化」，情報処理学会研究報告 オーディオビジュアル複合情報処理 ９５−ＡＶＭ−９，Ｖｏｌ．９５，Ｎｏ．６４，９−１（ｐ．１−８），１９９５年７月
Attorney, Agent or Firm:
Takaya Koike
Previous Patent: DRIVING METHOD FOR STATIC LIQUID CRYSTAL ELEMENT
Next Patent: REFLECTION MIRROR FOR ILLUMINATION AND ITS MANUFACTURE
Next Patent: REFLECTION MIRROR FOR ILLUMINATION AND ITS MANUFACTURE