IMAGE CORRECTION METHOD AND APPARATUS, STORAGE MEDIUM, AND PROJECTION DEVICE
FIG2 is a spatial positional relationship diagram of adjacent diffraction spots according to some embodiments of the present disclosure
In an example, FIG2 is a spatial positional relationship diagram of adjacent diffraction spots according to some embodiments of the present disclosure. As shown in FIG2, L1 is the ith diffraction spot, and L2 is the (i + 1)th diffraction spot. Line segment AB is the first line segment, line segment AC is the second line segment, and point B is the projection point of point C on the plane of the ith diffraction spot, so angle B is a right angle, and triangle ABC is a right-angled triangle. The angle between line segment AB and line segment AC is angle A, and angle A is also an angle between the plane of the ith diffraction spot and the plane of the (i + 1)th diffraction spot.
diagram
21
2
line segment
['2. The method according to claim 1, wherein the determining (S103) an angle α i  between a plane of an i th  diffraction spot and a plane of an (i + 1) th  diffraction spot that are adjacent in the horizontal or vertical direction in the region to be corrected comprises: determining a line segment having a first circle center and a second circle center as end points as a first line segment, wherein the first circle center is a circle center of the i th  diffraction spot, and the second circle center is a circle center of the (i + 1) th  diffraction spot; determining a line segment having the first circle center and a first projection point  as end points as a third line segment, the first projection point being a projection point of the second circle center on a plane of the i th  diffraction spot; and determining an angle between the first line segment and the third line segment as the angle α i .']