Patent ID: 11961175
Assignee: IMAGINATION TECHNOLOGIES LIMITED
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. The method of claim 1, wherein performing isotropic filtering at each of the plurality of sampling points comprises performing first isotropic filtering at each sampling point of the plurality of sampling points; and the method further comprises:
performing second isotropic filtering at each of a second plurality of sampling points along the major axis of the elliptical footprint, wherein a spacing between adjacent sampling points of the second plurality of sampling points is proportional to √{square root over (1−η−2)} units, wherein η is a ratio of a major radius of a second ellipse to be sampled and a minor radius of the second ellipse to be sampled, wherein the second ellipse to be sampled is based on the elliptical footprint;
combining results of the second isotropic filtering; and
interpolating between the combination of the results of the first isotropic filtering and the combination of the results of the second isotropic filtering.