US6628827B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of upscaling a color image
Assignee: Intel Corp
•
Filing: 1999-12-14
•
Granted: 2003-09-30
•
Expires: 2019-12-14
Abstract
Abstract A method of upscaling a color image in a first color space format to a second color space format may include the following. A color image in a first color space format may be transformed to a second color space format. At least one color plane of the transformed color image may be upscaled, the at least one color plane corresponding to one of the color space dimensions of the second color space format, to provide an upscaled color image in the second color space format. Of course, many other embodiments other than the preceding embodiment are also within the scope of the present invention.
Inventors
- 👤 Tinku Acharya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:55
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/4015; H; H04; H04N; H04N9/00; H04N9/64; H04N9/67
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
102 words
A method of upscaling a color image in a first color space format to a second color space format comprising: transforming the color image in the first color space format to the second color space format; and applying an upscaling scheme to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one color plane of the transformed color image, the at least one color plane corresponding to one of the color space dimensions of the second color space format.
Claim 2
Independent Claim
102 words
A method of upscaling a color image in a first color space format to a second color space format comprising: transforming the color image in the first color space format to the second color space format; and applying an upscaling scheme to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one color plane of the transformed color image, the at least one color plane corresponding to one of the color space dimensions of the second color space format.
Claim 3
Dependent Claim
18 words
The method of claim 1 , wherein the first color space format is the RGB color space format.
Claim 4
Dependent Claim
19 words
The method of claim 2 , wherein the second color space format is the Y-Cr-Cb 4:2:0 color space format.
Claim 5
Dependent Claim
21 words
The method of claim 1 , wherein the first and second color space formats comprise two different luminance-chrominance color space formats.
Claim 6
Dependent Claim
38 words
The method of claim 1 , wherein transforming comprises applying a relationship to at least one pixel value of the image in the first color space format to obtain a pixel value in the second color space format.
Claim 7
Dependent Claim
100 words
The method of claim 5 , wherein the relationship is applied substantially in accordance with the following equations: Y ( I,J )=0.299 R ( I,J )+0.587 G ( I,J )+0.114 B ( I,J ) Cr ( I,J )=−0.169 R ( I,J )−0.331 G ( I,J )+0.500 B ( I,J ) Cb ( I,J )=0.500 R ( I,J )−0.419 G ( I,J )−0.081 B ( I,J ) where R,G, and B denote different color planes in the RGB color space format, Y, Cr, and Cb denote different color planes in the Y-Cr-Cb 4:2:0 color space format, and I,J denote pixel locations.
Claim 8
Dependent Claim
42 words
The method of claim 1 , wherein applying an upscaling scheme comprises applying an Inverse discrete wavelet transform to an image decomposed into subbands, at least one of the subbands comprising the at least one color plane of the transformed color image.
Claim 9
Dependent Claim
22 words
The method of claim 7 , wherein the at least one of the subbands comprises an LL subband of the decomposed image.
Claim 10
Dependent Claim
17 words
The method of claim 8 , wherein the remaining subbands of the decomposed image comprise only zeros.
Claim 11
Dependent Claim
117 words
An article comprising: a storage medium having stored thereon instructions to upscale a color image in a first color space format to a second color space format, the instructions, when executed by a system, resulting in: transforming the color image in the first color space format to the second color space format; and applying an upscaling scheme to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one color plane of the transformed color image, the at least one color plane corresponding to one-of the color space dimensions of the second color space format.
Claim 12
Dependent Claim
117 words
An article comprising: a storage medium having stored thereon instructions to upscale a color image in a first color space format to a second color space format, the instructions, when executed by a system, resulting in: transforming the color image in the first color space format to the second color space format; and applying an upscaling scheme to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one color plane of the transformed color image, the at least one color plane corresponding to one-of the color space dimensions of the second color space format.
Claim 13
Dependent Claim
18 words
The article of claim 10 , wherein the first color space format is the RGB color space format.
Claim 14
Dependent Claim
19 words
The article of claim 11 , wherein the second color space format is the Y-Cr-Cb 4:2:0 color space format.
Claim 15
Dependent Claim
21 words
The article of claim 10 , wherein the first and second color space formats comprise two different luminance-chrominance color space formats.
Claim 16
Dependent Claim
48 words
The article of claim 10 , wherein the instructions, when executed, further result in transforming the color image comprising applying a relationship to at least one pixel value of the image in the first color space format to obtain a pixel value in the second color space format.
Claim 17
Dependent Claim
108 words
The article of claim 14 , wherein the instructions, when executed, further result in the relationship being applied substantially in accordance with the following equations: Y ( I,J ) 0.299 R ( I,J )+0.587 G ( I,J )+0.114 B ( I,J ) Cr ( I,J )=−0.169 R ( I,J )−0.331 G ( I,J )+0.500 B ( I,J ) Cb ( I,J )=0.500 R ( I,J )−0.419 G ( I,J )−0.081 B ( I,J ) where R,G, and B denote different color planes in the RGB color space format, Y, Cr, and Cb denote different color planes in the Y-Cr-Cb 4:2:0 color space format, and I,J denote pixel locations.
Claim 18
Dependent Claim
50 words
The article of claim 10 , wherein the instructions, when executed, further result in upscaling at least one color plane comprising applying an Inverse discrete wavelet transform to an image decomposed into subbands, at least one of the subbands comprising the at least one color plane of the transformed image.
Claim 19
Dependent Claim
29 words
The article of claim 16 , wherein the instructions, when executed, further result in the at least one of the subbands comprising an LL subband of the decomposed image.
Claim 20
Dependent Claim
24 words
The article of claim 17 , wherein the instructions, when executed, further result in the remaining subbands of the decomposed image comprise only zeros.
Claim 21
Independent Claim
118 words
A method of upscaling a color image transformed into a selected color space format comprising: appending zero subbands to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one of the color planes of the transformed color image so that the at least one of the color planes forms an LL subband of a decomposed image and the appended subbands form LH, HL, and LL subbands of a decomposed image; and applying the inverse discrete wavelet transform to the decomposed image so as to form the upscaled color image in the selected color space format.
Claim 22
Independent Claim
118 words
A method of upscaling a color image transformed into a selected color space format comprising: appending zero subbands to a subset of the data representing the transformed color image, the subset of the data being less than the whole of the data representing the transformed color image and including at least one of the color planes of the transformed color image so that the at least one of the color planes forms an LL subband of a decomposed image and the appended subbands form LH, HL, and LL subbands of a decomposed image; and applying the inverse discrete wavelet transform to the decomposed image so as to form the upscaled color image in the selected color space format.
Claim 23
Dependent Claim
19 words
The method of claim 19 , wherein the selected color space format comprises the Y-Cr-Cb 4:2:0 color space format.
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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) | 2006-09-29 | 2007-03-31 | 2007-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-09-29 | 2011-03-31 | 2011-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-09-29 | 2015-03-31 | 2015-09-30 | $7700.00 | Window Closed / Lapsed |