Patent US1545932A successfully refreshed from Google Patents.
Patent US6088486A successfully refreshed from Google Patents.
US6088486A
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Video coding and video decoding apparatus
Assignee: Toshiba Corp
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Filing: 1998-04-30
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Granted: 2000-07-11
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Expires: 2018-04-30
Abstract
Abstract A video encoding apparatus is provided with a resolution converting section, an encoding section, and a transmitting section. The resolution converting section enlarges or reduces a binary picture which represents the shape of an object. The encoding section encodes a binary picture reduced by the resolution converting section. The reduction ratio used by the resolution converting section is encoded, and the transmitting section transmits this encoded reduction ratio along with encoded data on the binary picture. The amount of encoded data produced from the encoding section is controlled by changing the enlargement/reduction ratio used by the resolution converting section.
Inventors
- 👤 Noboru Yamaguchi
- 👤 Toshiaki Watanabe
- 👤 Takashi Ida
- 👤 Takaaki Kuratate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:24
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/4023; H; H04; H04N; H04N19/00; H04N19/20; H04N19/29; H04N19/50; H04N19/59
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
143 words
A picture encoding apparatus comprising: an object region detector configured for receiving an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0, and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture to obtain an alpha-map signal of the rectangular object region and a position of the rectangular object region and a size thereof; an encoder configured for encoding the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and a multiplexer configured for multiplexing the coded alpha-map data and the coded position/size data.
Claim 2
Dependent Claim
143 words
A picture encoding apparatus comprising: an object region detector configured for receiving an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0, and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture to obtain an alpha-map signal of the rectangular object region and a position of the rectangular object region and a size thereof; an encoder configured for encoding the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and a multiplexer configured for multiplexing the coded alpha-map data and the coded position/size data.
Claim 3
Dependent Claim
29 words
The picture coding apparatus according to claim 1, wherein said encoder encodes an address of a corner of the object region and dimensions thereof in horizontal and vertical directions.
Claim 4
Dependent Claim
27 words
The picture coding apparatus according to claim 1, wherein the object region consists of a plurality of blocks, each of which is a processing unit for encoding.
Claim 5
Dependent Claim
27 words
The picture coding apparatus according to claim 1, wherein the object region includes an integral number of blocks, each of which is a processing unit for encoding.
Claim 6
Dependent Claim
147 words
A picture encoding apparatus comprising: an object region detector configured for receiving a binary picture signal of a whole picture including an object and a background surrounding the object, the binary picture signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0, and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture to obtain a binary picture signal of the rectangular object region and a position of the rectangular object region and a size thereof; an encoder configured for encoding the binary picture signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and a multiplexer configured for multiplexing the ended alpha-map data and the coded position/size data.
Claim 7
Dependent Claim
147 words
A picture encoding apparatus comprising: an object region detector configured for receiving a binary picture signal of a whole picture including an object and a background surrounding the object, the binary picture signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0, and detecting a rectangular object region containing the object and a part of the background surrounding the object, from the whole picture to obtain a binary picture signal of the rectangular object region and a position of the rectangular object region and a size thereof; an encoder configured for encoding the binary picture signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and a multiplexer configured for multiplexing the ended alpha-map data and the coded position/size data.
Claim 8
Dependent Claim
29 words
The picture coding apparatus according to claim 5, wherein said encoder encodes an address of a corner of the object region and dimensions thereof in horizontal and vertical directions.
Claim 9
Dependent Claim
27 words
The picture coding apparatus according to claim 5, wherein the object region consists of a plurality of blocks, each of which is a processing unit for encoding.
Claim 10
Dependent Claim
27 words
The picture coding apparatus according to claim 5, wherein the object region includes an integral number of blocks, each of which is a processing unit for encoding.
Claim 11
Independent Claim
139 words
A method of encoding a picture comprising the steps of: receiving an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0; detecting a rectangular object region including the object and a part of the background surrounding the object from a whole picture including the object and the background to obtain an alpha-map signal of the rectangular object region and a position of the rectangular object region and a size thereof; encoding the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and multiplexing the coded alpha-map data and the coded position/size data.
Claim 12
Independent Claim
139 words
A method of encoding a picture comprising the steps of: receiving an alpha-map signal of a whole picture including an object and a background surrounding the object, the alpha-map signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0; detecting a rectangular object region including the object and a part of the background surrounding the object from a whole picture including the object and the background to obtain an alpha-map signal of the rectangular object region and a position of the rectangular object region and a size thereof; encoding the alpha-map signal of the rectangular object region and the position and size of the rectangular object region to output coded alpha-map data and coded position/size data; and multiplexing the coded alpha-map data and the coded position/size data.
Claim 13
Dependent Claim
28 words
The method according to claim 9, wherein said encoding step encodes an address of a corner of the object region and dimensions thereof in horizontal and vertical directions.
Claim 14
Dependent Claim
25 words
The method according to claim 9, wherein the object region consists of a plurality of blocks, each of which is a processing unit for encoding.
Claim 15
Dependent Claim
25 words
The method according to claim 9, wherein the object region includes an integral number of blocks, each of which is a processing unit for encoding.
Claim 16
Dependent Claim
135 words
A picture encoding method comprising the steps of: receiving a binary picture signal of a whole picture including an object and a background surrounding the object, the binary picture signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0; detecting rectangular object region including the object and a part of the background surrounding the object from the whole picture to obtain a binary picture signal of the rectangular object region and a position of the rectangular object region and a size thereof; encoding the binary picture signal of the rectangular object region and the position and size of the rectangular object region to output coded binary picture data and coded position/size; and multiplexing the coded binary picture data and the coded position/size data.
Claim 17
Dependent Claim
135 words
A picture encoding method comprising the steps of: receiving a binary picture signal of a whole picture including an object and a background surrounding the object, the binary picture signal discriminating between the object and the background in accordance with information representing whether a value of the alpha-map signal is 0; detecting rectangular object region including the object and a part of the background surrounding the object from the whole picture to obtain a binary picture signal of the rectangular object region and a position of the rectangular object region and a size thereof; encoding the binary picture signal of the rectangular object region and the position and size of the rectangular object region to output coded binary picture data and coded position/size; and multiplexing the coded binary picture data and the coded position/size data.
Claim 18
Dependent Claim
28 words
The method according to claim 13, wherein said encoding step encodes an address of a corner of the object region and dimensions thereof in horizontal and vertical directions.
Claim 19
Dependent Claim
24 words
The method according to claim 13, wherein the object region consists of a plurality of blocks each which is a processing unit for encoding.
Claim 20
Dependent Claim
25 words
The method according to claim 13, wherein the object region includes an integral number of blocks, each of which is a processing unit for encoding.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-07-11 | 2004-01-10 | 2004-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-11 | 2008-01-10 | 2008-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-11 | 2012-01-10 | 2012-07-11 | $7700.00 | Window Closed / Lapsed |