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US 2023/0419453 A1Published application
Image noise reduction
AssigneeImagination Technologies Limited
InventorsMarc Vivet, Paul Brasnett
Life of this patent
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AssigneeImagination Technologies Limited
InventorsMarc Vivet, Paul Brasnett
Estimating the term…
A reduced noise image can be formed from a set of images. One of the images of the set can be selected to be a reference image and other images of the set are transformed such that they are better aligned with the reference image. A measure of the alignment of each image with the reference image is determined. At least some of the transformed images can then be combined using weights which depend on the alignment of the transformed image with the reference image to thereby form the reduced noise image. By weighting the images according to their alignment with the reference image the effects of misalignment between the images in the combined image are reduced. Furthermore, motion correction may be applied to the reduced noise image.
A method of transforming a first image to bring it closer to alignment with a reference image, the method comprising applying a transformation to the first image to obtain a transformed image, wherein the transformation is determined using multiple kernel tracking to initialize a Lucas Kanade Inverse algorithm.
A processing module for transforming a first image to bring it closer to alignment with a reference image, the processing module including a processor and comprising alignment logic configured to apply a transformation to the first image to obtain a transformed image, wherein the transformation is determined using multiple kernel tracking to initialize a Lucas Kanade Inverse algorithm.
A non-transitory computer readable storage medium having stored thereon processor executable instructions that when executed cause at least one processor to transform a first image to bring it closer to alignment with a reference image by applying a transformation to the first image to obtain a transformed image, wherein the transformation is determined using multiple kernel tracking to initialize a Lucas Kanade Inverse algorithm.
A non-transitory computer readable storage medium having stored thereon a computer readable dataset description of an integrated circuit that, when processed in an integrated circuit manufacturing system, causes the integrated circuit manufacturing system to manufacture a processing module comprising alignment logic configured to apply a transformation to a first image to obtain a transformed image, wherein the transformation is determined using multiple kernel tracking to initialize a Lucas Kanade Inverse algorithm.
Dependencies are inferred from the claim text.