Projection method and projection system
A projection method includes generating projection size information including at least one of first size information representing a distance between two dots included in a first projection image displayed on a projection surface, and second size information representing an area of a first image included in the first projection image based on information output from a sensor, and displaying a second projection image including an image showing a numerical value represented by the projection size information on the projection surface.
1 . A projection method comprising:
generating projection size information including at least one of first size information representing a distance between a first dot and a second dot included in a first projection image displayed on a projection surface, and second size information representing an area of a first image included in the first projection image based on information output from a sensor; and
displaying a second projection image including an image showing a numerical value represented by the projection size information on the projection surface, wherein:
the first dot corresponds to one of vertices of the first projection image,
the second dot corresponds to another of vertices of the first projection image, and
the second projection image includes:
a fourth image of a diagram having a longitudinal direction that extends along a direction in which the first dot and the second dot are aligned; and
a character string representing the numerical value of the first size information, and
the character string is displayed along the fourth image.
2 . The projection method according to claim 1 , wherein
the first size information represents a length of a diagonal line of the first projection image.
3 . The projection method according to claim 1 , wherein
the first projection image is displayed by a projection mechanism projecting a second image on the projection surface,
the sensor is an image sensor provided to a camera configured to take the first projection image, and
generating the projection size information includes
obtaining taken image information output from the sensor by taking the first projection image, and
generating the projection size information based on position information representing a positional relationship between the camera and the projection mechanism, second image information representing the second image, and the taken image information.
4 . The projection method according to claim 3 , wherein
the camera and the projection mechanism are disposed in a chassis, and
the chassis is provided with a storage device configured to store the position information.
5 . The projection method according to claim 3 , wherein
generating the projection size information includes
obtaining first coordinate information representing coordinates of a plurality of third dots included in the second image, and
obtaining second coordinate information representing coordinates of a plurality of fourth dots which is included in a taken image represented by the taken image information, and which corresponds one-to-one to the plurality of third dots, and
generating the projection size information based on the position information, the second image information, and the taken image information includes generating the projection size information based on the position information, the first coordinate information, and the second coordinate information.
6 . The projection method according to claim 5 , wherein
the second image includes a third image having a plurality of vertexes.
7 . A projection system comprising:
a processing device;
a sensor; and
a projection mechanism, wherein
the processing device is configured to execute
generating projection size information including at least one of first size information representing a distance between a first dot and a second dot included in a first projection image displayed on a projection surface, and second size information representing an area of a first image included in the first projection image based on information output from the sensor, and
controlling the projection mechanism to display a second projection image including an image showing a numerical value represented by the projection size information on the projection surface, wherein:
the first dot corresponds to one of vertices of the first projection image,
the second dot corresponds to another of vertices of the first projection image, and
the second projection image includes:
a fourth image of a diagram having a longitudinal direction that extends along a direction in which the first dot and the second dot are aligned; and
a character string representing the numerical value of the first size information, and
the character string is displayed along the fourth image.
8 . The projection system according to claim 7 , wherein
the first size information represents a length of a diagonal line of the first projection image.
9 . The projection system according to claim 7 , wherein
the first projection image is displayed by the projection mechanism projecting a second image on the projection surface,
the sensor is an image sensor provided to a camera configured to take the first projection image, and
generating the projection size information includes
obtaining taken image information output from the sensor by taking the first projection image, and
generating the projection size information based on position information representing a positional relationship between the camera and the projection mechanism, second image information representing the second image, and the taken image information.
10 . The projection system according to claim 9 , wherein
the camera and the projection mechanism are disposed in a chassis, and
the chassis is provided with a storage device configured to store the position information.
11 . The projection system according to claim 9 , wherein
generating the projection size information includes
obtaining first coordinate information representing coordinates of a plurality of third dots included in the second image, and
obtaining second coordinate information representing coordinates of a plurality of fourth dots which is included in a taken image represented by the taken image information, and which corresponds one-to-one to the plurality of third dots, and
generating the projection size information based on the position information, the second image information, and the taken image information includes generating the projection size information based on the position information, the first coordinate information, and the second coordinate information.
12 . The projection system according to claim 11 , wherein
the second image includes a third image having a plurality of vertexes.