Patent ID: 11875473
Assignee: ASPEED TECHNOLOGY INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 18:
19. The method according to claim 17, wherein the one of the N seam regions is split into two separate portions and the two separate portions are respectively located at the leftmost and rightmost sides of the projection image, wherein the step of stitching the two overlapping seam images further comprises:
prior to the steps of assigning its pixel value and calculating the blending weight and the blending pixel value,
for each row of the corresponding seam region,
subtracting a x coordinate of the left edge of the corresponding seam region from a x coordinate of a corresponding separation point to obtain a relative distance of the corresponding separation point;
if the relative difference is less than zero, adding the width of the projection image to the relative distance to modify the relative difference;
determining locations of a left edge and a right edge of the update window according to the relative distance and a width of the update window;

if one of the left edge and the right edge of the update window is sticked out of the corresponding seam region, modifying the width of the update window and the one of the left edge and the right edge of the update window to align with the boundary of the corresponding seam region to obtain the final width of the update window;
calculating a distance of a pixel location in the corresponding seam region from the left edge of the projection image; and
if the distance of the pixel location is greater than the width of the projection image, subtracting the width of the projection image from the distance of the pixel location to modify the pixel location.