Nvidia patents method to smooth seams when stitching images together
Nvidia describes a technique that adjusts the color and lighting settings of two overlapping photos before they are joined. By blending these settings along the border, the system creates a seamless transition that looks like a single, continuous picture.
In the filing’s own words
In various examples, metadata-based image harmonization for image stitching systems and applications are disclosed. Systems and methods are disclosed that preprocess images with respect to rendering parameters, with the effect of blending those parameters at a border between images to facilitate a smooth rendering when those images are stitched together. An image signal processing (ISP) parameter harmonization function may input metadata parameters associated with a set of images to match and blend one or more of the rendering parameters across an overlapping border between images prior to applying those images to a stitching algorithm. A scaling of the metadata parameter may be performed using a parameter gain function. Pixels in both images located along the border are adjusted to the same boundary metadata parameter value, and smoothed based on the parameter gain function. A discontinuity in rendering parameters is avoided, substantially avoiding corresponding artifacts in the resulting stitched image.
What exactly they claim (claim 1)
1. One or more processors comprising one or more processing units to: determine a first parameter value associated with rendering a first image and a second parameter value associated with rendering a second image, wherein the first image at least partially overlaps at an image border with the second image; compute a boundary parameter value based at least on the first parameter value and the second parameter value; apply a first parameter gain function that adjusts the first parameter value in at least a portion of the first image directionally toward the boundary parameter value at the image border; apply a second parameter gain function that adjusts the second parameter value in at least a portion of the second image directionally toward the boundary parameter value at the image border; and stitch the first image to the second image at the image border.
Facts
- Company
- Nvidia (NVIDIA CORPORATION)
- Official title
- IMAGE HARMONIZATION
- Publication number
- US20260301355A1
- Application number
- 19700434
- Filed
- Jun 8, 2026
- Published
- Oct 1, 2026
- Inventors
- 5
- Claims
- 20
Classified under
G06V 10/16 Physics & computingG06T 3/4015 Physics & computingG06T 5/70 Physics & computingG06T 5/80 Physics & computingG06T 5/92 Physics & computingG06V 10/60 Physics & computingMore from Nvidia in AI & software
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.