MULTI-PROJECTION SYSTEM AND DATA PROCESSING APPARATUS

• US 20160227179A1
• Filed: 01/07/2016
• Published: 08/04/2016
• Est. Priority Date: 01/29/2015
• Status: Active Grant

• Current Assignee: Ricoh Company Limited
• Original Assignee: Ricoh Company Limited
• Inventors: YANAZUME, Shinsuke, BABA, Hiroshi
• Granted Patent: US 9,756,302 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 3/1423 controlling a plurality of local displays, e.g. CRT and flat panel display
• CPC Class Codes: G06F 3/1446 display composed of modules, e.g. video walls
• CPC Class Codes: G09G 2300/026 Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
• CPC Class Codes: G09G 2340/10 Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels
• CPC Class Codes: H04N 9/3147 Multi-projection systems displays in general H04N9/12; video walls G06F3/1446, G09G2300/026
• CPC Class Codes: 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

Abstract

A multi-projection system configured to display output frames as a single screen by display frames displayed by display devices, respectively, the system includes a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen; an output frame obtaining unit that obtains output frames; an output frame synthesizing unit that synthesizes the output frames based on the output frame position data; a display frame generating unit that generates the display frame for each of the display devices using a part of the synthesized image based on the display frame position data; and display units that display the generated display frames, respectively.

Claims

1. A multi-projection system configured to display a plurality of output frames as a single screen by a plurality of display frames displayed by a plurality of display devices, respectively, the system comprising:

a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen;

an output frame obtaining unit that obtains a plurality of output frames;

an output frame synthesizing unit that synthesizes the plurality of output frames based on the output frame position data;

a display frame generating unit that generates the display frame for each of the display devices using a part of the synthesized image based on the display frame position data; and

a plurality of display units that display the plurality of generated display frames, respectively.

2. The multi-projection system according to claim 1,

wherein the output frame obtaining unit obtains a plurality of output frames from a plurality of data processing apparatuses, respectively.

3. The multi-projection system according to claim 1,

wherein the output frame synthesizing unit synthesizes, for each of the display frames, only the output frames included in the respective display frame based on the output frame position data and the display frame position data.

4. The multi-projection system according to claim 1, further comprising:

an update frequency determining unit that determines, for each of the display frames, the update frequency of the output frame whose update frequency is the highest among the output frames included in the respective display frame as frequency of the respective display frame based on the output frame position data, the display frame position data and output frame update frequency data that is data of update frequency for each of the output frames,

wherein the display frame generating unit generates each of the display frames in accordance with a period based on the update frequency of the respective display frame determined by the update frequency determining unit.

5. The multi-projection system according to claim 1,

wherein the display device is a projector, and

wherein the display frame position data is set such that a part of each of the display frames overlap a part of another display frame.

7. The multi-projection system according to claim 1,

wherein the plurality of output frames are output from a plurality of data processing apparatuses, respectively.

6. A multi-projection system configured to display a plurality of output frames as a single screen by a plurality of display frames displayed by a plurality of display devices, respectively, the system comprising:

a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen;

an output frame obtaining unit that obtains at least an output frame;

a sub output frame generating unit that generates a plurality of sub output frames from the at least output frame to be divided into the plurality of display frames based on the output frame position data and the display frame position data, each of the sub output frames becoming a part of the respective display frame;

a display frame generating unit that generates the display frame using the sub output frames that are to be included in the display frame; and

a display unit that display the generated display frame.

8. The multi-projection system according to claim 6,

wherein the sub output frame generating unit generates the sub output frames in accordance with a period based on the update frequency of the output frame whose update frequency is the highest among the output frames included in the respective display frame.

9. The multi-projection system according to claim 6,

wherein the display device is a projector, and

wherein the display frame position data is set such that a part of each of the display frames overlap a part of another display frame.

10. A data processing apparatus used for a multi-projection system configured to display a plurality of output frames as a single screen by a plurality of display frames displayed by a plurality of display devices, respectively, the data processing apparatus comprising:

a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen;

an output frame obtaining unit that obtains a plurality of output frames;

an output frame synthesizing unit that synthesizes the plurality of output frames based on the output frame position data;

a display frame generating unit that generates the display frame for each of the display devices using a part of the synthesized image based on the display frame position data; and

a sending unit that sends the plurality of generated display frames to the corresponding display devices, respectively.

11. A data processing apparatus used for a multi-projection system configured to display a plurality of output frames as a single screen by a plurality of display frames displayed by a plurality of display devices, respectively, the data processing apparatus comprising:

a screen position setting unit that sets output frame position data that is data of position of each of the output frames in the single screen when synthesizing the output frames to the single screen, and display frame position data that is data of position of each of the display frames in the single screen;

an output frame obtaining unit that obtains at least an output frame;

a sub output frame generating unit that generates a plurality of sub output frames from the at least output frame to be divided into the plurality of display frames based on the output frame position data and the display frame position data, each of the sub output frames becoming a part of the respective display frame;

a sending unit that sends the generated sub output frames to the corresponding display devices, respectively.