IP Library Granted Patent US 12712989
Granted Patent B2
US 12712989 · App. 19/092,229 · Granted Aug 18, 2026

Projection image adjustment method, information processing device, and non-transitory computer-readable storage medium storing program

Inventors: Keisuke Moriyama (Azumino, JP); Kazuyoshi Kitabayashi (Azumino, JP); Toshiyuki Sakai (Matsumoto, JP)
Assignee: SEIKO EPSON CORPORATION
H04N9/3185H04N9/3182
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Quick Facts
Patent No.
US 12712989
App. No.
19/092,229
Granted
Aug 18, 2026
Kind
B2
Abstract

A projection image adjustment method includes: performing first processing when a first operation is accepted, the first processing including causing a projector to project a first projection image including a test pattern, acquiring, from the projector, a geometric correction value obtained by performing geometric correction on the first projection image projected on a projection surface by the projector, generating a reference pattern corresponding to a marking operation for marking an object on the projection surface appearing in the first projection image when the marking operation is accepted, and storing a relative positional relationship between the test pattern and the reference pattern, and the geometric correction value, as one data set; and performing second processing including causing the projector to project a second projection image including the reference pattern when a second operation different from the first operation is accepted.

Claims (29)

1 . A projection image adjustment method comprising:

performing first processing when a first operation is received,

the first processing including

causing a projector to project a first projection image including a test pattern,

acquiring, from the projector, a geometric correction value obtained by performing geometric correction on the first projection image projected on a projection surface by the projector,

generating a reference pattern corresponding to a marking operation for marking an object on the projection surface appearing in the first projection image when the marking operation is received, and

storing a relative positional relationship between the test pattern and the reference pattern, and the geometric correction value, as one data set; and

performing second processing including causing the projector to project a second projection image including the reference pattern when a second operation different from the first operation is received.

2 . The projection image adjustment method according to claim 1 , wherein the second projection image includes the test pattern in addition to the reference pattern.

3 . The projection image adjustment method according to claim 1 , wherein the test pattern is a grid pattern.

4 . The projection image adjustment method according to claim 1 , wherein a color of the reference pattern is different from a color of an area other than the reference pattern in an area disposed in the second projection image.

5 . An information processing device comprising:

an input device that receives an input operation; and

a control device that executes

first processing when a first operation is received via the input device,

the first processing including

causing a projector to project a first projection image including a test pattern,

acquiring, from the projector, a geometric correction value obtained by performing geometric correction on the first projection image projected on a projection surface by the projector,

generating a reference pattern corresponding to a marking operation for marking an object on the projection surface appearing in the first projection image when the marking operation is received, and

storing a relative positional relationship between the test pattern and the reference pattern, and the geometric correction value, as one data set, and

second processing including causing the projector to project a second projection image including the reference pattern when a second operation different from the first operation is received via the input device.

6 . A non-transitory computer-readable storage medium storing a program, the program causing a computer to execute:

first processing when a first operation is received,

the first processing including

causing a projector to project a first projection image including a test pattern,

acquiring, from the projector, a geometric correction value obtained by performing geometric correction on the first projection image projected on a projection surface by the projector,

generating a reference pattern corresponding to a marking operation for marking an object on the projection surface appearing in the first projection image when the marking operation is received, and

storing a relative positional relationship between the test pattern and the reference pattern, and the geometric correction value, as one data set; and

second processing including causing the projector to project a second projection image including the reference pattern when a second operation different from the first operation is received.