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US 9,870,605 B2Granted
Accelerated lens distortion correction with near-continuous warping optimization
AssigneeIntel Corporation
InventorAvigdor Dori Eldar
Life of this patent
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AssigneeIntel Corporation
InventorAvigdor Dori Eldar
Estimating the term…
A digital image processing technique, such as an image warping operation, is stored in a pre-computed lookup table (LUT) prior to image processing. The LUT represents a pixel-to-pixel mapping of pixel coordinates in a source image to pixel coordinates in a destination image. For vectors containing only inlier pixels, a fast remap table is generated based on the original LUT. Each SIMD vector listed in the fast remap is indexed to the coordinates of one of the source pixels that maps to one of the destination pixels in the vector. Other SIMD vectors that contain at least one outlier pixel are listed in an outlier index. For each vector indexed in the fast remap, linear vector I/O operations are used to load the corresponding source pixels instead of using scatter/gather vector I/O load operations via the LUT. The remaining outlier pixels are processed using scatter/gather I/O operations via the LUT.
A computer-implemented image processing method, comprising:
A computer program product comprising a non-transitory, computer-readable medium having instructions encoded thereon that when executed by one or more processors cause a process to be carried out, the process comprising:
A system comprising:
Dependencies are inferred from the claim text.