Patent ID: 11908107
Assignee: SANECHIPS TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The method of claim 4, wherein the step of determining pixel values of a plurality of pixels in the output image data comprises steps of:
generating a polar coordinate pixel grid of an input space for the input image data, each of a plurality of grids in the polar coordinate pixel grid of the input space corresponding to respective one of the plurality of pixels in the input image data;
mapping the pixels corresponding to the plurality of grids of the polar coordinate pixel grid of the input space, in a mapping mode from the input image data to the output image data, to obtain a plurality of discrete pixels mapped; generating the polar coordinate pixel grid of the output space according to the plurality of discrete pixels mapped, each grid in the polar coordinate pixel grid of the output space corresponding to a respective one of the plurality of discrete pixels mapped; and
while a pixel in an image corresponding to the output image data is excluded from the pixels in the polar coordinate pixel grid of the output space, determining a neighborhood of the pixel that does not belong to the polar coordinate pixel grid of the output space, according to the polar coordinate pixel grid of the output space; performing interpolation operation on the pixel values of a plurality of pixels in the neighborhood of the pixel to obtain the pixel value of the pixel.