IP Library › Granted Patent US 11,483,527
Granted Patent B2
US 11,483,527 · App. 17/109,278 · Granted Oct 25, 2022

Method of operation of a control device configured to control a plurality of projectors and control device

Inventor: Takumi Oike (Matsumoto, JP)
Assignee: Seiko Epson Corporation
H04N9/3182G03B21/00G03B21/14G03B21/26H04N9/3147H04N9/3194
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Quick Facts
Patent No.
US 11,483,527
App. No.
17/109,278
Granted
Oct 25, 2022
Kind
B2
Abstract

A method of operation of a control device configured to control a plurality of projectors including the steps of making each of the plurality of projectors projects one or more first images based on first image information to a first area, and generating color correction data used to correct a color of images projected by the plurality of projectors based on imaging data generated by a camera imaging the first area where the first images are projected by the plurality of projectors.

Claims (21)

1. A method of operation of a control device configured to control a plurality of projectors, the method comprising:

making each of the plurality of projectors project one or more first images based on first image information to a first area;

generating color correction data used to correct a color of images projected. by the plurality of projectors based on imaging data generated by a camera imaging the first area where the first images are projected by the plurality of projectors; and

counting a number of times of reception of a projection instruction which equals a reception count value, the reception count value corresponds to the color of the images.

2. The method of operation of the control device according to claim 1 , wherein

the first image information includes red image information representing a red-colored image, green image information representing a green-colored image, and blue image information representing a blue-colored image,

the first images includes the red image based on the red image information, the green image based on the green image information, and the blue image based on the blue image information,

each of the plurality of projectors is made to project the red image, the green image, and the blue image to the first area at respective timings different from each other, and

the color correction data is generated based on red image imaging data generated by the camera imaging the first area where the red image is projected from each of the projectors, green image imaging data generated by the camera imaging the first area where the green image is projected from each of the projectors, and blue image imaging data. generated by the camera imaging the first area where the blue image is projected from each of the projectors.

3. The method of operation of the control device according to claim 2 , further comprising:

calculating a total value of a value of a color represented by the red image imaging data, a value of a color represented by the green image imaging data, and a value of a color represented by the blue image imaging data, wherein

the color correction data is generated based on a relationship between the total value and a target value.

4. The method of operation of the control device according to claim 3 , wherein

the target value is a fixed value.

5. The method of operation of the control device according to claim 3 , further comprising:

identifying a value of a color of a second image projected from one or more other projectors different from the plurality of projectors to a second area different from the first area, wherein

the value of the color of the second image is used as the target value.

6. The method of operation of the control device according to claim 1 , further comprising:

providing the color correction data to the plurality of projectors.

7. A control device comprising:

a processor configured to make each of a plurality of projectors project one or more first images to a first area, generate color correction data used to correct a color of images projected by the plurality of projectors based on imaging data generated by a camera imaging the first area where the first images are projected by the plurality of projectors, and count a number of times of reception of a projection instruction which equals a reception count value, the reception count value corresponds to the color of the images.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 2, 2020
From: OIKE, TAKUMI
To: SEIKO EPSON CORPORATION
Reel/Frame 054513/0174 →
Priority Claims (1)
JP JP2019-217729 · Dec 2, 2019 · national
Continuity (1)
Related Publication 20210168342A1 · Jun 3, 2021