Patent ID: 11962947
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 9:
10. A projection method, comprising:
causing a projection apparatus to perform position measurement and projection on a target object; and
causing a processor to perform a setting processing for mask processing of limiting a part of a projection range in which measurement light of invisible light is projected,
wherein the projection apparatus performs the position measurement and projection on the target object by:
projecting the measurement light onto the projection range partially limited by the mask processing;
receiving reflected light of the measurement light;
calculating position information of the target object positioned within the projection range based on the reflected light of the measurement light;
determining a projection position of a content based on the calculated position information of the target object; and
projecting the content onto the determined projection position,

the processor is configured to cause the projection apparatus to project the measurement light to perform the position measurement, and to detect an error region where a defect occurs in a measurement result of the position measurement,
the processor is configured to set, for a target projection apparatus, a mask region at a time of projecting the measurement light by using the measurement result of the error region, and
the processor is configured to detect a region where a measurement error occurs due to an obstacle in the projection range as the error region, and set the mask region for the region.