Patent ID: 11934089
Assignee: CHENGDU XGIMI TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 2:
3. The bidirectional compensation method for projection thermal defocusing as claimed in claim 2, wherein the step of calculating the definition values of the current projected picture image and the definition value of the previous projected picture image comprises:
zooming out the current projected picture image, and calculating a difference between the definition value of the current projected picture image and a definition value of a zoomed-out current projected picture image, as the definition value of the current projected picture image; and
zooming out the previous projected picture image, and calculating a difference between the definition value of the previous projected picture image and a definition value of the zoomed-out previous projected picture image, as the definition value of the previous projected picture image.