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

Claim 0:
1. A projection system comprising:
a projection apparatus configured to perform position measurement and projection on a target object; and
a processor configured to perform a setting processing for mask processing by the projection apparatus,
wherein the projection apparatus comprises:
an invisible light projector configured to project measurement light of invisible light onto the target object;
a light receiver configured to receive reflected light of the measurement light reflected from the target object; and
a calculator configured to calculate position information of the target object based on the reflected light of the measurement light, and

wherein the projection apparatus is configured to perform the mask processing of limiting a part of a projection range in which the measurement light is projected,
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.