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US 12,664,625 B1Granted
Multi-directional non-linear stretch of video
AssigneemadVR Holdings LLC
InventorMathias Rauen
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Abstract
Combinations of non-linear stretch expansion and compression in the vertical and horizontal directions are used to display images in a first aspect ratio on a screen having a second aspect ratio that is different than the first aspect ratio, utilizing the full extent of the screen if desired. Areas for display of subtitles may also be added. The use of such combinations can greatly reduce the distortion of the images perceived by viewers.
Claims21
A computer implemented method comprising:
- receiving video images having a first aspect ratio;
- detecting subtitles in the received video images;
- and
- adding a subtitle area for display of subtitles outside of the display of the video images by modifying a size of the displayed video images, wherein modifying the size of the displayed video images comprises performing a nonlinear stretch to at least one of horizontal or vertical aspects of the received video images to optimize display of the video images on the display device, and wherein video image pixels nearer to an edge than a center of each image are stretched more than pixels nearer to the center than an edge of each image.
1 more element
A computer implemented method comprising:
- receiving an image having a first aspect ratio;
- performing a nonlinear stretch to at least one of horizontal or vertical aspects of the received image as a function of a second aspect ratio different than the first aspect ratio, wherein the nonlinear stretch applies a variable scaling ratio that changes continuously across the image such that video image pixels nearer to an edge than a center of each image are stretched more than pixels nearer to a center than an edge of each image;
- and
- displaying the images on a display screen having the second aspect ratio.
1 more element
A device comprising:
- a processor;
- and
- a memory device coupled to the processor and having a program stored thereon for execution by the processor to perform operations to perform a method comprising:
- receiving video images having a first aspect ratio;
- detecting subtitles in the received video images;
- and
- adding a subtitle area for display of subtitles outside of a display of the video images by modifying a size of the displayed video images, wherein modifying the size of the displayed video images comprises performing a nonlinear stretch to at least one of horizontal or vertical aspects of the received video images to optimize display of the video images on a display device, and wherein video image pixels nearer to an edge than a center of each image are stretched more than pixels nearer to the center than an edge of each image.
4 more elements
Dependencies are inferred from the claim text.