Title:
IMAGE CODER, IMAGE DECODER AND MOTION VECTOR DETECTOR
Document Type and Number:
Japanese Patent JP3120664
Kind Code:
B2
Abstract:
PURPOSE: To encode/decode an image representing luminance and transparency being components of hierarchical images separated in the relation of the depth in the line of light directions.
CONSTITUTION: This coder is provided with a modification analyzer 201 that takes correlation between a luminance plane and an α plane representing a transparency and extracts a modification parameter expressed by affine transformation and movement of a block and with a modification compositing unit 202 producing a predicted image from the result of decoding of a preceding frame and the result of the modification analyzer 201. Then a predicted image consists of the luminance plane and the α plane and a difference of them is subject to error coding and an outputted bit stream consists of an affine transformation parameter, a block movement parameter, a luminance plane error code and an α plane error code.
More Like This:
| JP4825137 | Compression coding device, decompression decoding device |
| JP4628499 | Image decoding method |
| WO/2021/208897 | CHROMA SYNTAX SIGNALING IN ADAPTATION PARAMETER SET |
Inventors:
Etoh Minoru
Application Number:
JP25340094A
Publication Date:
December 25, 2000
Filing Date:
October 19, 1994
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04N19/50; G06T9/20; H03M7/36; H04N7/01; H04N19/102; H04N19/154; H04N19/176; H04N19/186; H04N19/196; H04N19/20; H04N19/21; H04N19/36; H04N19/40; H04N19/423; H04N19/46; H04N19/503; H04N19/51; H04N19/537; H04N19/57; H04N19/60; H04N19/61; H04N19/70; H04N19/85; H04N19/86; H04N19/91; H04N19/93; (IPC1-7): H04N7/32
Other References:
Ｊ．Ｙ．Ａ．Ｗａｎｇ ａｎｄ Ｅ．Ｈ．Ａｄｅｌｓｏｎ，“Ｌａｙｅｒｅｄ Ｒｅｐｒｅｓｅｎｔａｔｉｏｎ ｆｏｒ Ｍｏｔｉｏｎ Ａｎａｌｙｓｉｓ”，Ｐｒｏｃｅｅｄｉｎｇｓ １９９３ ＩＥＥＥ Ｃｏｍｐｕｔｅｒ Ｓｏｃｉｅｔｙ Ｃｏｎｆｅｒｅｎｃｅ ｏｎ Ｃｏｍｐｕｔｅｒ Ｖｉｓｉｏｎ ａｎｄ Ｐａｔｔｅｒｎ Ｒｅｃｏｇｎｉｔｉｏｎ，Ｊｕｎ．１９９３，ｐｐ．３６１−３６６
Ｊ．Ｙ．Ａ．Ｗａｎｇ ａｎｄ Ｅ．Ｈ．Ａｄｅｌｓｏｎ，“Ｒｅｐｒｅｓｅｎｔｉｎｇ Ｍｏｖｉｎｇ Ｉｍａｇｅｓ ｗｉｔｈ Ｌａｙｅｒｓ”，ＩＥＥＥ Ｔｒａｎｓａｃｔｉｏｎｓ ｏｎ Ｉｍａｇｅ Ｐｒｏｃｅｓｓｉｎｇ，Ｓｅｐ．１９９４，Ｖｏｌ．３，Ｎｏ．５，ｐｐ．６２５−６３８
Ｊ．Ｙ．Ａ．Ｗａｎｇ ａｎｄ Ｅ．Ｈ．Ａｄｅｌｓｏｎ，“Ｒｅｐｒｅｓｅｎｔｉｎｇ Ｍｏｖｉｎｇ Ｉｍａｇｅｓ ｗｉｔｈ Ｌａｙｅｒｓ”，ＩＥＥＥ Ｔｒａｎｓａｃｔｉｏｎｓ ｏｎ Ｉｍａｇｅ Ｐｒｏｃｅｓｓｉｎｇ，Ｓｅｐ．１９９４，Ｖｏｌ．３，Ｎｏ．５，ｐｐ．６２５−６３８
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)