Patent ID: 11877103
Assignee: ALI CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. The projection device according to claim 6, wherein the target polygon comprises at least two target quadrilaterals intersecting in an intersecting line, and the image processing circuit is further configured to:
obtain a first edge middle segment of a first edge of the target polygon and a second edge middle segment of a second edge of the target polygon according to two of the plurality of target coordinates when the intersecting line is not perpendicular to bottom edges of plurality of first trapezoidal boundaries; and
perform the second direction scaling process on another of the plurality of second image portions to generate another sub-target image block according to a coordinate position of the first edge middle segment and a coordinate position of the second edge middle segment, wherein the target image block comprises the another sub-target image block.