Patent ID: 11886107
Assignee: IVIEW DISPLAYS (SHENZHEN) COMPANY LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A projection method, comprising:
acquiring a projection image and an environmental image when a screen picture is projected to a projection region, wherein the environmental image comprises an image when a predetermined projection screen picture is projected to the projection region or an image when no screen picture is projected to the projection region;
regulating an aperture based on the projection image and the environmental image, wherein the aperture is configured to control a light flux projected to the projection region;
wherein regulating the aperture based on the projection image and the environmental image comprises:
determining a stray light region image of stray light in the projection image and an environmental light region image of environmental light in the environmental image;
calculating a stray light luminance in the stray light region image and an environmental light luminance in the environmental light region image;
regulating the aperture based on the stray light luminance and the environmental light luminance.