US5963257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video coding device and video decoding device
Assignee: Sharp Corp
•
Filing: 1998-06-10
•
Granted: 1999-10-05
•
Expires: 2018-06-10
Abstract
Abstract A video coding device capable of making coded data have a hierarchical structure, a specified area of each frame is selected. The position and the shape of the selected area are encoded, a pixel value of the selected area is encoded as slower-layer coded data, a pixel value of a whole image is encoded as first upper-layer coded data by using pixel values of already decoded images of the lower-layer and the first upper layer and a pixel value of the selected area is encoded as second upper-layer coded data by using pixel values of already decoded images of the lower-layer and the second upper layer.
Inventors
- 👤 Hiroyuki Katata
- 👤 Hiroshi Kusao
- 👤 Norio Ito
- 👤 Toshio Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:37
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/50; H04N19/503; H04N19/51; H04N19/577; H04N19/10; H04N19/102; H04N19/103; H04N19/107; H04N19/169; H04N19/17; H04N19/30; H04N19/37; H04N19/53; H04N19/60; H04N19/61; H04N19/20
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
198 words
A video coding device capable of giving a hierarchical structure to coded data, comprising: area-selecting means for selecting a specified area of each frame; area-position-and-shape coding means for coding a position and a shape of a selected area of each frame; lower-layer coding means for coding a pixel value of a selected area only to be of a low image-quality; first upper-layer coding means for predictively coding a pixel value of a whole image of each frame to be of a low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the first upper-layer coded data; second upper-layer coding means for predictively coding a pixel value of a selected area of each frame to be of a high image quality as compared to said low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the second upper-layer coded data; and coded data integrated means for integrating coded data obtained including said lower-layer coding means, said first upper-layer coding means and said second upper-layer coding means so as to giving a hierarchical structure to the coded data.
Claim 2
Dependent Claim
198 words
A video coding device capable of giving a hierarchical structure to coded data, comprising: area-selecting means for selecting a specified area of each frame; area-position-and-shape coding means for coding a position and a shape of a selected area of each frame; lower-layer coding means for coding a pixel value of a selected area only to be of a low image-quality; first upper-layer coding means for predictively coding a pixel value of a whole image of each frame to be of a low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the first upper-layer coded data; second upper-layer coding means for predictively coding a pixel value of a selected area of each frame to be of a high image quality as compared to said low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the second upper-layer coded data; and coded data integrated means for integrating coded data obtained including said lower-layer coding means, said first upper-layer coding means and said second upper-layer coding means so as to giving a hierarchical structure to the coded data.
Claim 3
Dependent Claim
73 words
A video decoding device for decoding a video-image from data encoded by the video-coding device according to claim 1, comprising: coded data separating means for separately extracting area position and shape codes and a lower-layer code from the coded data; area-position-and-shape decoding means for decoding the position code and the shape code; and lower-layer decoding means for decoding the lower-layer code, wherein it decodes a selected area to be of a low image-quality.
Claim 4
Dependent Claim
171 words
A video coding device capable of giving a hierarchical structure to coded data, comprising; an area-selecting means for selecting a specified area of each frame; an area-position-and-shape coding means for coding a position and a shape of a selected area of each frame; a lower-layer coding means for coding a pixel value of a selected area only to be of a low image-quality; a first upper-layer coding means for predictively coding a pixel value of an area other than the selected area to be of a low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the first upper-layer coded data; a second upper-layer coding means for predictively coding a pixel value of the selected area to be of a high image-quality; and a coded data integrating means for integrating coded data obtained including said lower-layer coding means, said first upper-layer coding means and said second upper-layer coding means so as to give a hierarchical structure to the coded data.
Claim 5
Dependent Claim
171 words
A video coding device capable of giving a hierarchical structure to coded data, comprising; an area-selecting means for selecting a specified area of each frame; an area-position-and-shape coding means for coding a position and a shape of a selected area of each frame; a lower-layer coding means for coding a pixel value of a selected area only to be of a low image-quality; a first upper-layer coding means for predictively coding a pixel value of an area other than the selected area to be of a low image-quality by using an already decoded pixel value of a lower-layer coded data and an already decoded pixel value of the first upper-layer coded data; a second upper-layer coding means for predictively coding a pixel value of the selected area to be of a high image-quality; and a coded data integrating means for integrating coded data obtained including said lower-layer coding means, said first upper-layer coding means and said second upper-layer coding means so as to give a hierarchical structure to the coded data.
Claim 6
Dependent Claim
73 words
A video decoding device for decoding a video-image from data encoded by the video-coding device according to claim 3, comprising: coded data separating means for separately extracting area position and shape codes and a lower-layer code from the coded data; area-position-and-shape decoding means for decoding the position code and the shape code; and lower-layer decoding means for decoding the lower-layer code, wherein it decodes a selected area to be of a low image-quality.
Claim 7
Dependent Claim
80 words
A video decoding device for according to claim 3, comprising: coded data separating means for separately extracting area position and shape codes, a second upper-layer code and an lower-layer code from the coded data; area-position-and-shape decoding means for decoding the position code and the shape code; an lower-layer decoding means for decoding the lower-layer code; and second upper layer decoding means for decoding the second upper-layer code, wherein it decodes a selected area to be of a high image quality.
Claim 8
Dependent Claim
129 words
A video decoding device for decoding a video-image from coded data including position-and-shape code of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a low-image-quality upper-layer code of a pixel of a whole image of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code and the upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code, wherein it decodes a whole area of a video-image to be of a low image-quality.
Claim 9
Dependent Claim
129 words
A video decoding device for decoding a video-image from coded data including position-and-shape code of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a low-image-quality upper-layer code of a pixel of a whole image of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code and the upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code, wherein it decodes a whole area of a video-image to be of a low image-quality.
Claim 10
Dependent Claim
127 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a high-image-quality upper-layer code of a pixel value of a selected area of each frame, comprising: a coded data separating means for separately extracting the area position and shape codes, the upper-layer code and the lower-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code; wherein it decodes the selected area to be of a high image-quality.
Claim 11
Dependent Claim
127 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a high-image-quality upper-layer code of a pixel value of a selected area of each frame, comprising: a coded data separating means for separately extracting the area position and shape codes, the upper-layer code and the lower-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code; wherein it decodes the selected area to be of a high image-quality.
Claim 12
Dependent Claim
172 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame, a low-image-quality first-upper-layer code of a pixel value of a whole image area of each frame and a high-image-quality second upper-layer code of a pixel value of a selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code, the first upper-layer code and the second upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; a first upper-layer decoding means for decoding the first upper-layer code; and a second upper-layer decoding means for decoding the second upper-layer code; wherein it decodes the selected area to be of a high image-quality and decodes other areas to be of a low image-quality.
Claim 13
Dependent Claim
172 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame, a low-image-quality first-upper-layer code of a pixel value of a whole image area of each frame and a high-image-quality second upper-layer code of a pixel value of a selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code, the first upper-layer code and the second upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; a first upper-layer decoding means for decoding the first upper-layer code; and a second upper-layer decoding means for decoding the second upper-layer code; wherein it decodes the selected area to be of a high image-quality and decodes other areas to be of a low image-quality.
Claim 14
Dependent Claim
135 words
A video decoding device for decoding a video-image from coded data including position-and-shape code of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a low-image-quality upper-layer code of a pixel value of an area other than the selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code and the upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code; wherein it decodes a whole area of a video image to be of a low image-quality.
Claim 15
Dependent Claim
135 words
A video decoding device for decoding a video-image from coded data including position-and-shape code of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame and a low-image-quality upper-layer code of a pixel value of an area other than the selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code and the upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; and an upper-layer decoding means for decoding the upper-layer code; wherein it decodes a whole area of a video image to be of a low image-quality.
Claim 16
Dependent Claim
165 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame, a low-image-quality first upper-layer code of a pixel value of an area other than the selected of each frame and a high-image-quality second-upper-layer code of a pixel value of a selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code, the first upper-layer code and the second upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; a first upper-layer decoding means for decoding the first upper-layer code; and wherein it decodes the selected area of video-image to be of a high image-quality and decodes other areas to be of a low image-quality.
Claim 17
Dependent Claim
165 words
A video decoding device for decoding a video-image from coded data including position-and-shape codes of a selected specified area of each frame, a low-image-quality lower-layer code of a pixel value of a selected area of each frame, a low-image-quality first upper-layer code of a pixel value of an area other than the selected of each frame and a high-image-quality second-upper-layer code of a pixel value of a selected area of each frame, comprising; a coded data separating means for separately extracting the area position and shape codes, the lower-layer code, the first upper-layer code and the second upper-layer code from the coded data; an area-position-and-shape decoding means for decoding the position code and the shape code of the selected area; a lower-layer decoding means for decoding the lower-layer code; a first upper-layer decoding means for decoding the first upper-layer code; and wherein it decodes the selected area of video-image to be of a high image-quality and decodes other areas to be of a low image-quality.
References Cited (Backward Citations)
US5136659A
Cited
US4992868A
Cited
US5132792A
Cited
US5155594A
Cited
US5274453A
Cited
US5260783A
Cited
JPH0549025A
Cited
US5262856A
Cited
US5596321A
Cited
JPH06223155A
Cited
US5408274A
Cited
JPH0730888A
Cited
US5684887A
Cited
US5488411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-10-04 | 2003-04-05 | 2003-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-10-04 | 2007-04-05 | 2007-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-10-04 | 2011-04-05 | 2011-10-05 | $7700.00 | Window Closed / Lapsed |