# US 11,908,353 B2 · Information processing apparatus and information processing system

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- Number: US 11,908,353 B2
- Document ID: US11908353B2
- Status: Granted
- Kind: B2
- Application number: 17/678,267
- Filed: 2022-02-23
- Published: 2022-08-25
- Granted: 2024-02-20
- Earliest claimed: 2021-02-24
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Kota Takeuchi; Hiroyuki Ichieda
- Web page: https://patentgrep.com/patent/US11908353B2

## CPC

- G09G 3/002: {to project the image of a two-dimensional display, such as an array of light emitting or modulating elements or a CRT}
- H04N 9/3147: {Multi-projection systems (video walls G06F3/1446)}
- H04N 9/3185: {Geometric adjustment, e.g. keystone or convergence (optical or mechanical adjustment of convergence H04N9/317; using scanning means H04N3/22; optical or mechanical adjustments of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/14)}
- H04N 9/3194: {including sensor feedback}
- G06F 3/1446: {display composed of modules, e.g. video walls}
- G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
- G09G 2320/0626: for control of overall brightness
- G09G 2320/0693: Calibration of display systems
- G09G 2340/0407: Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

An information processing apparatus including one processor acquiring a first captured image by imaging projection surface wherein image light of a first projector is projected, acquiring second captured image by imaging projection surface on which image light of a second projector is projected, determining a first drawing range containing a drawing range in which a first image projected by the first projector is drawn and a drawing range in which a second image projected by the second projector is drawn based on the first captured image and the second captured image, drawing image in the first drawing range, dividing the image into a first image based on the drawing range in which the first image is drawn and a second image based on the drawing range in which the second image is drawn, outputting the first image to the first projector, and outputting the second image to the second projector.

## Claims

### Claim 1

An information processing apparatus comprising:
at least one processor programmed to
acquire a first captured image by imaging a projection surface on which an image light of a first projector is projected,
acquire a second captured image by imaging the projection surface on which an image light of a second projector is projected,
determine, based on the first captured image and the second captured image, a first drawing range including a first range in which a first image projected by the first projector is drawn and a second range in which a second image projected by the second projector is drawn,
determine a first imaging range in which the image light of the first projector is imaged of the first captured image,
determine a second imaging range in which the image light of the second projector is imaged of the second captured image,
calculate a transform expression for transforming a size of the second imaging range into a panel resolution of a drawing panel of the second projector, the drawing panel being configured to modulate light from a light source included in the second projector,
transform a size of the first imaging range into a transformed size of the first imaging range and the size of the second imaging range into a transformed size of the second imaging range using the transform expression,
determine the first range in which the first image is drawn and the second range in which the second image is drawn based on the transformed size of the first imaging range and the transformed size of the second imaging range,
draw an image, based on the first captured image and the second captured image, in the first drawing range,
divide the image into the first image based on the first range in which the first image is drawn and the second image based on the second range in which the second image is drawn,
output the first image to the first projector, and
output the second image to the second projector.

### Claim 2 (depends on 1)

The information processing apparatus according to claim 1, wherein
the at least one processor
acquires a third captured image by imaging the projection surface on which an image light of a third projector is projected,
determines, based on the first captured image, the second captured image, and the third captured image, a second drawing range including the first range in which the first image is drawn, the second range in which the second image is drawn, and a third range in which a third image projected by the third projector is drawn,
draws the image in the second drawing range,
divides the image into the first image based on the first range in which the first image is drawn, the second image based on the second range in which the second image is drawn, and a third image based on the third range in which the third image is drawn,
outputs the first image to the first projector,
outputs the second image to the second projector, and
outputs the third image to the third projector.

### Claim 3

An information processing system comprising:
an imaging apparatus acquiring a first captured image by imaging a projection surface on which an image light of a first projector is projected and a second captured image by imaging the projection surface on which an image light of a second projector is projected; and
an information processing apparatus including at least one processor programmed to
determine, based on the first captured image and the second captured image, a first drawing range including a first range in which a first image is projected by the first projector is drawn and a second range in which a second image projected by the second projector is drawn,
determine a first imaging range in which the image light of the first projector is imaged of the first captured image,
determine a second imaging range in which the image light of the second projector is imaged of the second captured image,
calculate a transform expression for transforming a size of the second imaging range into a panel resolution of a drawing panel of the second projector, the drawing panel being configured to modulate light from a light source included in the second projector,
transform a size of the first imaging range into a transformed size of the first imaging range and the size of the second imaging range into a transformed size of the second imaging range using the transform expression,
determine the first range in which the first image is drawn and the second range in which the second image is drawn based on the transformed size of the first imaging range and the transformed size of the second imaging range,
draw an image, based on the first captured image and the second captured image, in the first drawing range,
divide the image into the first image based on the first range in which the first image is drawn and the second image based on the second range in which the second image is drawn,
output the first image to the first projector, and
output the second image to the second projector.