Granted Patent B2

US 12,302,042 · App. 17/961,161 · Granted May 13, 2025

Inventors: Asuka Aoki (Nara, JP); Yuan Xia (Osaka, JP)

Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

H04N9/3147H04N9/3188H04N9/3155

Abstract

Claims (31)

1. A video projection method by a video projection system including a first projector, a second projector, and a controller that transmits video data to the first projector and the second projector, the video projection method comprising:

projecting, by the first projector, first projection video whose projection area where projection video is displayed by the first projector moves in a first region, the projecting being performed based on the video data transmitted from the controller;

projecting, by the second projector, second projection video onto a second region, the projecting being performed based on the video data transmitted from the controller; and

adjusting the video data of the first projection video or the video data of the second projection video in a superimposed region where projection area of the first projector and projection area of the second projector overlap.

2. The video projection method according to claim 1 , wherein in the adjusting, the resolution of the first projection video is adjusted to match with resolution of the second projection video in the superimposed region.

3. The video projection method according to claim 1 , wherein in the adjusting, the brightness of the first projection video is adjusted to match with brightness of the second projection video in the superimposed region.

4. The video projection method according to claim 1 , wherein in the adjusting, brightness of a part of the second projection video overlapping the first projection video is set to 0%.

5. The video projection method according to claim 1 , further comprising:

projecting, by the second projector, the second projection video whose projection area where projection video is displayed by the second projector in the second region.

6. The video projection method according to claim 5 , further comprising:

controlling a projection angle of the second projector depending on a projection angle of the first projector during the projecting of the first projection video by the first projector.

7. The video projection method according to claim 5 , further comprising:

changing a moving speed of the second projector depending on a moving speed of the first projector during the projecting of the first projection video by the first projector.

8. The video projection method according to claim 5 , wherein

in the adjusting, in the superimposed region, positions, shapes, and sizes of the first projection video and the second projection video are adjusted to be matched, brightness of the first projection video is set higher at a position close to the first region and lower at a position close to the second region, and brightness of the second projection video is set lower at a position close to the first region and higher at a position close to the second region.

9. The video projection method according to claim 8 , wherein in the adjusting, brightness of projection video formed by overlapping the first projection video and the second projection video is kept constant in the superimposed region.

10. The video projection method according to claim 8 , wherein in the adjusting, positions, shapes, and sizes of the first projection video and the second projection video are matched by a projection transformation matrix.

11. The video projection method according to claim 1 , further comprising:

adjusting at least one of resolution and brightness of the first projection video or the second projection video in a superimposed region where the first region and the second region overlap.

12. A video projection method by a projector having a mechanism for moving a projection position of projection video to be projected, the video projection method comprising moving a display position of a predetermined image in the projection video in a movement direction with respect to the projection video in response to a speed at which the projection position moves when the movement direction of the projection position of the projection video is reversed by reversing of a driving direction of the mechanism.

13. A video projection system comprising:

a first projector that projects first projection video whose projection area where projection video is displayed by the first projector moves in a first region;

a second projector that projects second projection video in a second region; and

a controller that transmits video data to the first projector and the second projector,

wherein the controller adjusts of the video data of the first projection video or the video data of the second projection video in a superimposed region where the projection area of the first projector and the projection area of the second projector overlap.

14. The video projection system according to claim 13 , wherein

the second projector projects the second projection video whose projection where projection video is displayed by the second projector moves in the second region.

15. The video projection system according to claim 14 , wherein

in the superimposed region, the controller adjusts, in the video data, positions, shapes, and sizes of the first projection video and the second projection video to match, and brightness of the first projection video is set higher at a position close to the first region and lower at a position close to the second region, and brightness of the second projection video is set lower at a position close to the first region and higher at a position close to the second region.

16. The video projection system according to claim 13 ,

wherein the controller adjusts at least one of resolution and brightness of the video data of the first projection video in a superimposed region where the first region and the second region overlap.

Assignments (3)

Priority Claims (1)

Continuity (2)

References Cited (23)