US5917549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transforming images with different pixel aspect ratios
Assignee: Adobe Inc
•
Filing: 1996-08-07
•
Granted: 1999-06-29
•
Expires: 2016-08-07
Abstract
Abstract A method for compositing first and second digital images having different pixel aspect ratios to reduce distortion of image content. The method includes determining a scaling factor from first and second pixel aspect ratios; scaling a first image by the scaling factor; and compositing the first and second images into a composite image. The scaling step may be limited to stretching or squashing the first image in only a horizontal direction. The scaling step may include resampling the first image. In another aspect, the invention features a method for controlling motion along a motion path in a composition having nonsquare pixels. The method includes determining a scaling factor based on the composition pixel aspect ratio; applying the scaling factor to a copy of the motion path; reparameterizing the copy of the motion path to generate a scaled motion mapping; and using the scaled motion mapping to control motion along the motion path. The motion path may define the motion of a layer in the composition.
Inventors
- 👤 David P. Simons
- 👤 Scott S. Snibbe
- 👤 Daniel M. Wilk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:56
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/01; G; G06; G06T; G06T3/00; G06T3/40; H04N5/00; H04N5/222; H04N5/262; H04N5/2628
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
101 words
A method for compositing a plurality of digital images having different pixel aspect ratios to reduce distortion of image content, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the method comprising: calculating a scaling factor from the first and second pixel aspect ratios; scaling the first image by the scaling factor to produce a scaled first image at the second pixel aspect ratio; and compositing the scaled first image and the unscaled second image into a composite image having the second pixel aspect ratio.
Claim 2
Independent Claim
101 words
A method for compositing a plurality of digital images having different pixel aspect ratios to reduce distortion of image content, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the method comprising: calculating a scaling factor from the first and second pixel aspect ratios; scaling the first image by the scaling factor to produce a scaled first image at the second pixel aspect ratio; and compositing the scaled first image and the unscaled second image into a composite image having the second pixel aspect ratio.
Claim 3
Dependent Claim
23 words
The method of claim 1 wherein the scaling step is limited to stretching or squashing the first image in only a horizontal direction.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein the scaling step includes resampling the first image.
Claim 5
Dependent Claim
109 words
An image composition system for compositing a plurality of images having different pixel aspect ratios to reduce distortion of image content, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the system comprising: means for calculating a scaling factor from the first and second pixel aspect ratios; means for scaling the first image by the scaling factor to produce a scaled first image having the second pixel aspect ratio; and means for compositing the scaled first image and the unscaled second image to produce a composite image having the second pixel aspect ratio.
Claim 6
Dependent Claim
109 words
An image composition system for compositing a plurality of images having different pixel aspect ratios to reduce distortion of image content, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the system comprising: means for calculating a scaling factor from the first and second pixel aspect ratios; means for scaling the first image by the scaling factor to produce a scaled first image having the second pixel aspect ratio; and means for compositing the scaled first image and the unscaled second image to produce a composite image having the second pixel aspect ratio.
Claim 7
Dependent Claim
127 words
A computer program tangibly recorded on a computer-readable medium for compositing a plurality of digital images having different pixel aspect ratios, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the computer program comprising instructions for causing a computer to: calculate a scaling factor from the first and second pixel aspect ratios; scale the first image using the scaling factor to produce a scaled first image having the second pixel aspect ratio so as to reduce distortion of image content when the first image is composited with the second image; and composite the scaled first image and the unscaled second image into a composite image having the second pixel aspect ratio.
Claim 8
Dependent Claim
127 words
A computer program tangibly recorded on a computer-readable medium for compositing a plurality of digital images having different pixel aspect ratios, the plurality of images including a first image having a first pixel aspect ratio and a second image having a second, different pixel aspect ratio, the computer program comprising instructions for causing a computer to: calculate a scaling factor from the first and second pixel aspect ratios; scale the first image using the scaling factor to produce a scaled first image having the second pixel aspect ratio so as to reduce distortion of image content when the first image is composited with the second image; and composite the scaled first image and the unscaled second image into a composite image having the second pixel aspect ratio.
Claim 9
Dependent Claim
22 words
The computer program product of claim 5, further comprising instructions for causing the computer to: apply an effect to the first image.
Claim 10
Dependent Claim
22 words
The computer program product of claim 5, further comprising instructions for causing the computer to: apply a mask to the first image.
Claim 11
Dependent Claim
31 words
The computer program product of claim 5, further comprising instructions for causing the computer to: scale a mask having a perfect shape before the mask is applied to the first image.
Claim 12
Dependent Claim
43 words
The computer program product of claim 5, further comprising instructions for causing the computer to: transform the first image in accordance with a geometry transformation, the geometry transformation comprising an operation selected from the group of image sizing, image translation, and image rotation.
Claim 13
Dependent Claim
46 words
The computer program product of claim 9, further comprising instructions for causing the computer to: apply an effect to the first image; apply a mask to the first image; and scale a mask having a perfect shape before the mask is applied to the first image.
Claim 14
Independent Claim
84 words
A method for compositing a source image having a first pixel aspect ratio into a destination image having a second different pixel aspect ratio, comprising: calculating a scaling factor from the first pixel aspect ratio and the second different pixel aspect ratio; applying an effect to the source image; scaling the source image in accordance with the scaling factor to produce a scaled image having the second pixel aspect ratio; and compositing the scaled image into the destination image to produce a composite image.
Claim 15
Independent Claim
84 words
A method for compositing a source image having a first pixel aspect ratio into a destination image having a second different pixel aspect ratio, comprising: calculating a scaling factor from the first pixel aspect ratio and the second different pixel aspect ratio; applying an effect to the source image; scaling the source image in accordance with the scaling factor to produce a scaled image having the second pixel aspect ratio; and compositing the scaled image into the destination image to produce a composite image.
Claim 16
Dependent Claim
14 words
The method of claim 11, further comprising applying a mask to the source image.
Claim 17
Dependent Claim
24 words
The method of claim 12, wherein the mask has a perfect shape and the method includes scaling the mask before the mask is applied.
Claim 18
Dependent Claim
16 words
The method of claim 11, wherein the effect is selected from image effects and channel effects.
Claim 19
Dependent Claim
16 words
The method of claim 14, wherein the image effects distort, blur or sharpen the source image.
Claim 20
Dependent Claim
19 words
The method of claim 14, wherein the image effects are selected from channel blur, motion blur and radial blur.
Claim 21
Dependent Claim
19 words
The method of claim 14, wherein the effect changes one or more pixel color values in the source image.
Claim 22
Dependent Claim
16 words
The method of claim 11, wherein the scaling operation is performed in the horizontal direction only.
Claim 23
Dependent Claim
35 words
The method of claim 11, further comprising transforming the source image in accordance with a geometry transformation, the geometry transformation comprising an operation selected from the group of image sizing, image translation, and image rotation.
Claim 24
Dependent Claim
35 words
The method of claim 12, further comprising transforming the source image in accordance with a geometry transformation, the geometry transformation comprising a operation selected from the group of image sizing, image translation, and image rotation.
Claim 25
Independent Claim
60 words
A system for compositing digital images, comprising: means for scaling a source image having a source pixel aspect ratio to produce a scaled image having a different destination pixel aspect ratio; and means for compositing the scaled source image and an unscaled second image having the destination pixel aspect ratio into a composite image having the destination pixel aspect ratio.
Claim 26
Independent Claim
60 words
A system for compositing digital images, comprising: means for scaling a source image having a source pixel aspect ratio to produce a scaled image having a different destination pixel aspect ratio; and means for compositing the scaled source image and an unscaled second image having the destination pixel aspect ratio into a composite image having the destination pixel aspect ratio.
Claim 27
Dependent Claim
16 words
The system of claim 21, further comprising: means for applying an effect to the source image.
Claim 28
Dependent Claim
22 words
The system of claim 21, further comprising: means for applying a geometry transformation to the source image before scaling the source image.
Claim 29
Dependent Claim
17 words
The system of claim 21, further comprising: means for scaling a mask having a perfect shape before
References Cited (Backward Citations)
US5499039A
Cited
US5119074A
Cited
US5434625A
Cited
US5442406A
Cited
US5327156A
Cited
US5539534A
Cited
US5384904A
Cited
US5448307A
Cited
US5572259A
Cited
US5504535A
Cited
US5568600A
Cited
US5528301A
Cited
US5710573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-06-28 | 2002-12-28 | 2003-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-06-28 | 2006-12-28 | 2007-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-06-28 | 2010-12-28 | 2011-06-29 | $7700.00 | Window Closed / Lapsed |