Projection image display system, projection image display method, and projection-type display apparatus

Patent metadata

Field	Value
Publication number	US-9621861-B2
Application number	US-201414548052-A
Country	US
Kind code	B2
Filing date	Nov 19, 2014
Priority date	Nov 21, 2013
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A projection image display system which forms an image on a projection plane with plural images includes a first projection-type display apparatus, a second projection-type display apparatus, a first-controller configured to control the first projection-type display apparatus to display a guide figure when a projectable region does not contain an assigned projection region for the first projection-type display apparatus, a second controller configured to control the second projection-type display apparatus to display a reference figure when a projectable region contains an assigned projection region for the second projection-type display apparatus. The guide figure is a figure to be referenced by a user for adjusting the position of the first projection-type display apparatus. The reference figure is a figure to be referenced by the user, as a norm for the position adjustment, in combination with the guide figure.

First claim

The invention claimed is:

1. A projection image display system which forms an image on a projection plane by using a plurality of images projected from a plurality of projection-type display apparatuses, wherein
the plurality of projection-type display apparatuses comprise a first projection-type display apparatus which is assigned displaying of an image in a first assigned projection region on the projection plane, and a second projection-type display apparatus which is assigned displaying of an image in a second assigned projection region which partially overlaps the first assigned projection region, and
the projection image display system comprises a first controller and a second controller,
the first controller is configured to generate a guide figure and controls the first projection-type display apparatus to display the guide figure when a first projectable region does not contain the first assigned projection region, the first projectable region being a region on a projection plane, in which the first projection-type display apparatus can actually project an image,
the second controller is configured to generates a reference figure and controls the second projection-type display apparatus to display the reference figure when a second projectable region contains the second assigned projection region, the second projectable region being a region on a projection plane, in which the second projection-type display apparatus can actually project an image,
the guide figure is a figure to be referenced by a user for adjusting the position of the first projection-type display apparatus, and the reference figure is a figure to be referenced by the user, as a norm for the position adjustment, in combination with the guide figure.

2. The projection image display system according to claim 1 further comprising
an assigned projection region setting unit configured to set an assigned projection region that is a region on a projection plane and is to be assigned to each of the projection-type display apparatuses, a projectable region detection unit configured to detect a projectable region that is a region on a projection plane in which each projection-type display apparatus can actually project an image, and
a determination unit configured to determine whether the projectable region contains the assigned projection region.

3. The projection image display system according to claim 1 , wherein the guide figure includes an indication indicating the first projectable region, and the reference figure includes an indication indicating the boundary of an overlapping region of the first assigned projection region and the second assigned projection region.

4. The projection image display system according to claim 1 , wherein the guide figure includes a first mark, the reference figure includes a second mark arranged in an overlapping region between the first assigned projection region and the second assigned projection region, and the second mark is referenced by the user in combination with the first mark for the position adjustment.

5. An image display method for a projection image display system for forming an image on a projection plane by using a plurality of projection-type display apparatuses, wherein
the plurality of projection-type display apparatuses include a first projection-type display apparatus which is assigned displaying of an image in a first assigned projection region on the projection plane, and a second projection-type display apparatus which is assigned displaying of an image in a second assigned projection region which partially overlaps the first assigned projection region,
the image display method comprises:
controlling the first projection-type display apparatus to display a guide figure when a first projectable region does not contain the first assigned projection region, the first projectable region being a region on a projection plane, in which the first projection-type display apparatus can actually project an image; and
controlling the second projection-type display apparatus to display a reference figure when a second projectable region contains the second assigned projection region, the second projectable region being a region on a projection plane, in which the second projection-type display apparatus can actually project an image,
the guide figure is a figure to be referenced by a user for adjusting the position of the first projection-type display apparatus, and the reference figure is a figure to be referenced by the user, as a norm for the position adjustment, in combination with the guide figure.

6. The image display method according to claim 5 , further comprising
capturing an image of the projection plane by an imaging apparatus;
obtaining the captured image and setting an assigned projection region for each projection-type display apparatus based on the captured image;
projecting a predetermined test pattern on the projection plane by each of the projection-type display apparatuses;
capturing an image of the test pattern projected by each of the projection-type display apparatuses on the projection plane, by the imaging apparatus; and
detecting a projectable region of each of the projection-type display apparatuses based on the captured image of the test pattern.

7. A projection-type display apparatus which forms an image on projection plane in cooperation with at least one other projection-type display apparatus and is assigned displaying of an image on a partial region of the formed image, the projection-type display apparatus and the other projection-type display apparatus each having a projectable region that is a region on the projection plane in which each projection-type display apparatus can actually project an image, and an assigned projection region that is a region on the projection plane assigned to each projection-type display apparatus,
the projection-type display apparatus including:
a generation unit configured to
generate a reference figured, when the projectable region of the projection-type display apparatus contains an assigned projection region of the projection-type display apparatus and when the projectable region of the other projection-type display apparatus adjacent to the projection-type display apparatus does not contain the assigned projection region of the other adjacent projection-type display apparatus, or
generate a guide figure that is referenced together with a reference figure of the other projection-type display apparatus by a user for adjusting the position of the projection-type display apparatus, when the projectable region of the projection-type display apparatus does not contain the assigned projection region of the projection-type display apparatus; and
a projection unit configured to projection the reference figure or the guide figure on the projection plane.

8. A control apparatus in a projection image display system which forms an image on a projection plane by using a plurality of images projected from a plurality of projection-type display apparatuses, wherein
the plurality of projection-type display apparatuses include a first projection-type display apparatus which is assigned displaying of an image in a first assigned projection region on the projection plane, and a second projection-type display apparatus which is assigned displaying of an image in a second assigned projection region which partially overlaps the first assigned projection region,
the control apparatus comprises a first controller and a second controller,
the first controller is configured to send a command for displaying a guide figure to the first projection-type display apparatus when a first projectable region does not contain the first assigned projection region, the first projectable region bei

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Hiranuma Yoshinao

Classifications

• H04N9/3194

  including sensor feedback · CPC title

• G03B21/147

  Optical correction of image distortions, e.g. keystone · CPC title

• H04N9/3147 Primary

  Multi-projection systems (video walls G06F3/1446) · CPC title

• H04N9/3185

  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) · CPC title