JP2001343962A - System and method for image projection and computer readable recording medium on which program for making computer execute the method is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To project a highly precise large screen image employing a small number of projectors by accurately connecting plural images and making the boundary sections less conspicuous. SOLUTION: A host computer 12 first conducts a picture direction/ arrangement setting process, classifies the left and the right location of two projectors 14 and 16 and sets the directions of the images to be displayed on the projectors. Then, a picture position adjusting process is conducted to adjust the picture locations so that the projected pictures of the two projectors are accurately connected. When image data are inputted, raster data are generated by a picture data input process. Then, the raster data are divided by a dividing image generating process, deformed and transmitted to the respective projectors 14 and 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image projection system, an image projection method, and a computer-readable recording medium on which a program for causing a computer to execute the method is recorded. The present invention relates to an image projection system for projecting an image on a screen using the image processing method, an image projection method, and a computer-readable recording medium on which a program for causing a computer to execute the method is recorded.

[0002]

2. Description of the Related Art Conventionally, an OHP (over head projector), a slide, or the like has been used as a means for projecting and explaining materials, images, and the like presented in a presentation or the like on a large screen. 2. Description of the Related Art An image projection system for projecting an image created on a screen of a personal computer directly on a screen via a projector is becoming widespread.

[0003] Projectors used in this type of image projection system include R (red), G (green), and B (blue).
There are CRT projectors that combine and project color CRT tube images, and liquid crystal projectors that irradiate light from the back of a color liquid crystal panel on which images are formed and project transmitted light. High definition is required.

[0004] For this reason, in recent years, an image projection system that attempts to obtain a high-definition and large-screen image by combining a plurality of images projected from a plurality of projectors into one image on a screen has been considered. ing.

[0005]

However, in such a conventional image projection system, when an image is projected on a screen using a plurality of projectors, for example, a normal image is projected using two projectors. By connecting two screens horizontally, a long screen can be projected, but when using ordinary presentation software such as Microsoft PowerPoint, a screen with a ratio of 4 to 3 in width and height is used. There is a restriction that only data can be created, and the same applies to a general method of generating image data such as a video player, and there is a problem that only a fixed form of data can be generated.

Therefore, for example, when it is desired to enlarge a 4: 3 screen, the same number of projectors are projected in the horizontal and vertical directions, and the divided images are projected and synthesized on the screen. (Fig. 6 shows a state in which images are synthesized using two projectors in the horizontal and vertical directions, and Fig. 7 shows a state in which images are synthesized using three projectors in the horizontal and vertical directions. ), There is a problem that a large number of projectors is required, such as four (FIG. 6) or nine (FIG. 7).

[0007] In an "image projection system" described in Japanese Patent Application Laid-Open No. 9-326981, input image data is transformed by perspective transformation, and then projected on a screen, thereby correcting deformation due to tilt. A plurality of images projected by a plurality of projectors can be accurately connected.

When the screens are connected, if the positions of the sides to be connected are shifted even a little, the two projected images are overlapped or a gap is formed, and the two projected images become white or black lines, so that they become easily visible. In addition, a method of averaging by giving a gradient such that it becomes darker as it approaches the edge of the image in the overlapped area is used. However, when the shape of the display screen of each projector is manually specified, such a gradient causes a problem that it is difficult to visually adjust the end points of the image accurately.

Further, as a simple method of specifying parameters when performing perspective transformation, a method of dragging a marker corresponding to the four corners of an image with a mouse has been considered. For example, FIGS. 8 to 10 show two screens 1 to be connected.
10 is a diagram showing 00, 102, and points at the corners of each screen are represented by A,
B, C, D, E, and F, and the vertical and horizontal center lines of each screen are 104 and 106.

Here, when the user drags and moves the four corners of the screen with a mouse or the like, as shown in FIG. 8, the points C and D at the corners of the screen almost coincide with the points E and F on the screen. Can be. However, when the transformation by the perspective transformation is performed, as shown in FIGS. 9 and 10, C, D
Even if the points are matched with the points E and F, there is a problem that the center lines 104 and 106 at the center of the screen are shifted depending on the positions of the points A and B, so that the entire sides do not match.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and accurately connects a plurality of images and makes the boundary portions inconspicuous so as to achieve high-definition and high-definition using a small number of projectors. It is an object of the present invention to provide a computer-readable recording medium characterized by recording an image projection system capable of projecting a large-screen image, an image projection method, and a program for causing a computer to execute the method.

[0012]

According to another aspect of the present invention, there is provided an image projection system comprising: a divided image data generating unit configured to divide projected image data into a plurality of divided image data; A plurality of image projecting means for individually rotating each image data divided by a predetermined angle and projecting the image data on a screen; and a projection screen adjusting means for adjusting a screen projected by the plurality of image projecting means. It is characterized by.

According to the first aspect of the invention, the projection image data is divided into a plurality by the divided image data generating means, and each of the divided image data is individually rotated by a predetermined angle by the plurality of image projecting means. To adjust the screen projected by the projection screen adjusting means, without affecting the resolution of the image projecting means, using a small number of image projecting means, and providing a high-definition and large screen. Can be projected.

According to a second aspect of the present invention, in the image projection system according to the first aspect, the projection screen adjustment unit is configured to adjust a direction and an arrangement of a screen projected by the plurality of image projection units. Screen orientation / arrangement setting means for setting the position, and screen position adjusting means for adjusting the position of the screen projected by the plurality of image projecting means,
Each setting and adjustment is performed while looking at the projection screen.

According to the second aspect of the present invention, since the projection screen adjusting means includes the screen orientation / arrangement setting means and the screen position adjusting means, the screen projected by the plurality of image projecting means is provided. Can be adjusted while looking at the projection screen.

According to a third aspect of the present invention, in the image projection system according to the second aspect, each screen projected from the plurality of image projection units on the adjustment screen of the screen position adjustment unit. Is characterized in that a center line is displayed vertically and horizontally.

According to the third aspect of the present invention, the center screen is displayed on the adjustment screen of the screen position adjusting means in the vertical and horizontal directions of each screen projected from the plurality of image projecting means. When connecting, the user can make adjustments with reference to the center line, and the entire side can be matched using the corner and the center of the image.

According to a fourth aspect of the present invention, in the image projection system according to the second or third aspect, the plurality of image projection units project onto the adjustment screen of the screen position adjustment unit. A line for overlapping each screen is displayed.

According to the fourth aspect of the present invention, a line for overlapping each screen projected from the plurality of image projection means is displayed on the adjustment screen of the screen position adjustment means. When connecting the images, the user can make adjustments with reference to the line, and the images can be connected without any gap in an overlapping state.

According to a fifth aspect of the present invention, in the image projection system according to any one of the second to fourth aspects, the plurality of image projections are displayed on an adjustment screen of the screen position adjustment means. A marker for position adjustment is displayed near the four corners of the display area of each screen projected from the means.

According to the present invention, markers for position adjustment are displayed on the adjustment screen of the screen position adjustment means near the four corners of the display area of each screen projected from the plurality of image projection means. Therefore, when adjusting the position of the display area of the screen, the user can easily adjust the position only by dragging the marker with a mouse or the like.

According to a sixth aspect of the present invention, in the image projection method, the divided image data generating means for dividing the projected image data into a plurality of pieces, and each of the image data divided by the divided image data generating means is individually set at a predetermined angle. A plurality of image projection means for rotating and projecting on a screen, and a projection screen adjustment means for adjusting a screen projected by the plurality of image projection means are provided.

According to the sixth aspect of the present invention, the projection image data is divided into a plurality by the divided image data generating step, and each of the divided image data is individually rotated by a predetermined angle by the plurality of image projection steps. The image projected on the screen is adjusted by the projection screen adjustment step, so that the image projected on the screen is adjusted without affecting the resolution of the image projection step. Can be projected.

According to a seventh aspect of the present invention, in the image projection method according to the sixth aspect, the projection screen adjusting step includes the step of setting the orientation and arrangement of a screen projected by the plurality of image projection steps. And a screen position adjusting step of adjusting the position of the screen projected by the plurality of image projecting steps, and performing each setting and adjustment while viewing the projected screen. It is characterized by the following.

According to the seventh aspect of the present invention, since the projection screen adjustment step includes the screen orientation / arrangement setting step and the screen position adjustment step, a screen projected by a plurality of image projection steps is provided. Can be adjusted while looking at the projection screen.

An image projection method according to an eighth aspect of the present invention is the image projection method according to the seventh aspect, wherein the plurality of image projection steps project onto an adjustment screen adjusted by the screen position adjustment step. A center line is displayed vertically and horizontally on each screen.

According to the eighth aspect of the present invention, the center screen is displayed on the adjustment screen adjusted by the screen position adjustment step in the vertical and horizontal directions of each screen projected by the plurality of image projection steps. , Users will be able to see and adjust the centerline when connecting images,
The entire side can be matched using the corners and center of the image.

According to a ninth aspect of the present invention, there is provided the image projection method according to the seventh or eighth aspect, wherein
On the adjustment screen adjusted by the screen position adjustment step,
A line for overlapping each screen projected by the plurality of image projection steps is displayed.

According to the ninth aspect of the present invention, on the adjustment screen adjusted by the screen position adjustment step, a line for overlapping each screen projected by the plurality of image projection steps is displayed. Therefore, when connecting the images, the user can make adjustments with reference to the line, and the images can be connected without any gap in an overlapping state.

According to a tenth aspect of the present invention, in the image projection method according to any one of the seventh to ninth aspects, the adjustment screen adjusted by the screen position adjustment step includes the plurality of images. The present invention is characterized in that markers for position adjustment are displayed near the four corners of the display area of each screen projected in the image projecting step.

According to the tenth aspect of the present invention, the adjustment screen adjusted by the screen position adjustment step includes a position adjustment position near the four corners of the display area of each screen projected by the plurality of image projection steps. Since the marker is displayed, when the position of the display area on the screen is adjusted, the user can easily adjust the position only by dragging the marker with a mouse or the like.

A storage medium according to an eleventh aspect of the present invention stores a program for causing a computer to execute the method according to any one of the sixth to tenth aspects, so that the program is machine-readable. Accordingly, the operations of claims 6 to 10 can be realized by a computer.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an image projection system, an image projection method, and a computer-readable recording medium having recorded thereon a program for causing a computer to execute the method according to an embodiment of the present invention will be described with reference to the drawings. A detailed description will be given based on this. FIG. 1 is a diagram illustrating a schematic configuration of an image projection system 10 according to the embodiment of the present invention.

The image projection system 10 shown in FIG. 1 is configured by connecting a host computer 12 to a plurality of projectors such as a first projector 14 and a second projector 16, and the first projector 14 projects an image on a screen (not shown). Screen is the first projection screen 18,
The screen projected from the second projector 16 is the second projection screen 20. Further, in the present embodiment, a monitor camera 22 for adjusting the projection screen while monitoring the projection screen on the host computer 12 side is provided. The configuration of the host computer 12 will be described later with reference to FIG.

As the first projector 14 and the second projector 16, two projectors having a display capability of 640 × 480 pixels are used. The first projector 14 and the second projector 16 are each rotated by 90 degrees around the optical axis so as to project a vertically long screen. It is. This projector uses a general projector and is installed by rotating the entire housing. However, if only the optical system of the projector can be rotated, it can be installed more easily.

Further, it is of course possible to add a rotating prism or the like to rotate only the projected image. Further, the parameters relating to the resolution and the gamma characteristic of the projector are set by the user in advance, but the host computer 12 may automatically acquire the parameters by communicating with each projector.

FIG. 2 is a functional block diagram for performing processing in the host computer 12 of FIG. Here, blocks are configured for each function to explain each function, but each of these functions is realized by software on the host computer 12. The host computer 12 of FIG. 2 includes an operation unit 30, a screen orientation / arrangement setting unit 32, a screen position adjustment unit 34,
An image data input unit 36, a memory 38, a divided image generation unit 40, and the like are provided.

The feature of this embodiment is that two projectors each having a screen of 4 to 3 are used and image data is divided into two parts.
Assuming that each screen is rotated 90 degrees to be vertically long and two images are combined in the horizontal direction, the ratio of the width to the height is 6: 4. This 6: 4 =
12: 8, which is slightly wider than 4: 3 = 12: 9, but an overlapping area is required to connect the two screens, so it is recombined into an almost 4: 3 screen This makes it possible to form a high-definition projected image having about twice the size.

When the screen position is adjusted, a center line (see 84 and 86 in FIG. 5 described later) is displayed at the center of the screen, so that the user can see the corner and the center of the image while looking at the screen. The image position can be adjusted in such a way that Furthermore, in the stage of adjusting the screen position, if a boundary line or the like is displayed between the overlapping areas of the connection parts of the two screens, the user can adjust while referring to the boundary line, and the actual image can be adjusted. Can be overlapped beyond the boundary line.

Next, the operation will be described. FIG.
It is a flowchart explaining the operation of the present embodiment,
FIG. 4 is a diagram showing an example of a screen for performing screen orientation / arrangement setting processing displayed on the operation unit 30 of the host computer 12,
FIG. 5 is a diagram illustrating an example of a screen for performing a screen position adjustment process displayed on the operation unit 30 of the host computer 12.

First, the screen orientation / step S1 shown in FIG.
In the arrangement setting process, the current arrangement condition of each projector is set in this step in order to arrange two projectors freely.

The setting of the arrangement condition is performed by the user using the operation screen 52 on the display 50 of the operation unit 30 of the host computer 12, as shown in FIG. At this time, an image projected on the screen by two projectors and monitored by the monitor camera 22 (see FIGS. 1 and 2) is displayed on the monitor screen 54 on the right side of the display 50. Here, “left” (left image 64) and “right” are applied to the images projected by the two projectors, respectively.
Characters (right image 66) are displayed, and an overlap area 68 for overlapping both images is provided.

Then, when the left and right exchange button 60 displayed on the operation screen 52 is clicked with a mouse or the like, the images transmitted to the two projectors are exchanged, and "left" (left image 64) and "right" (left image) are exchanged. The right image 66) can be displayed in reverse.

Clicking the rotation button 56 on the left screen or the rotation button 58 on the right screen can rotate the contents of each screen by 90 degrees to the left.
The user operates using the operation screen 52 so that the screen with the left image 64 on the left and the right image 66 on the right is displayed in the correct orientation on the screen. Then, when the correct display is obtained, when the "OK" button 62 is clicked, the left and right distinction of the projector at this time and the orientation of each displayed image are recorded.

Next, in the screen position adjustment processing shown in step S2 of FIG. 3, the screen position is adjusted so that the projection screens of the two projectors are accurately connected. Adjustment of the screen position is performed by the host computer 12 as shown in FIG.
Is operated by the user using the operation screen 70 on the display 50 of the operation unit 30. On the screen of the monitor screen 72 on the right side of the display 50, the displayable areas 80 and 82 of each projector are displayed as thin white lines.

On the inner side, left and right display areas 64 and 66 to be set are displayed as white squares. Also, black center lines 84 and 86 indicating the vertical and horizontal center positions in the display areas 64 and 66 are displayed. Since the center lines 84 and 86 are displayed in this way, the user can easily adjust the position while watching the center lines 84 and 86 to eliminate the shift in the entire area on the adjacent side. Further, markers 88 and 90 are drawn at the four corners of the left and right display areas 64 and 66, and the position of the display area is adjusted by the user dragging the same with a mouse or the like.

Therefore, the left screen button 7 on the operation screen 70
When 4 is clicked with a mouse or the like, the mouse cursor on the operation screen 70 disappears, and the mouse cursor appears on the projection screen 64 of the left projector. The user operates the mouse cursor using a mouse or the like. For example,
The user inputs markers 88 at the four corners of the display areas 64 and 66,
By dragging 90 with the mouse, the display area 6
The shape of 4, 66 is deformed and adjusted to a desired position.

In response to the movement of the mouse, the display areas 64 and 66 and the center lines 84 and 86 are displayed as follows. First, (1) the current coordinate values of the markers 88 and 90 are recorded, and (2) when a mouse drag is notified as an event from the window system, (3) the marker is moved according to the movement of the mouse. Change the coordinate values.

(4) A perspective transformation parameter for transforming the position in the entire screen corresponding to each of the markers 88 and 90 into each marker position is obtained. For example, 960x
Assuming 720 pixels, the display area 6 of the left projector
In the case of 4, (0,0), (480,0), (0,72)
0) and (480, 720) determine perspective transformation parameters for transforming the positions of the four points into marker positions, and (5) determine end points of the display image area including the overlap area, and perform transformation processing using the perspective transformation parameters. I do. For example, if the overlap area is 8 pixels wide in the above example, (0,0),
(484, 0), (0, 720), (484, 720)
Are set as the end points of the display image area, and the conversion processing is performed using the perspective conversion parameters.

As a result, (6) if the converted position is outside the display range of the projector, the changed marker position is returned to the original position and the marker movement is stopped. Also,
(7) When it is within the display range of the projector, the marker on the screen is moved.

Further, (8) the position of the end point of the center line ｛(0,
360)-(480, 360), (240, 0)-(2
40, 720) is converted using the same parameters, and the center line is moved on the screen using the converted position. Thus, it is ensured that the image area including the overlap area is within the display range of the projector, and a line corresponding to the center of the display image data can be drawn correctly.

When the position adjustment in the screen is completed as described above, when the user presses the "OK" button 78, the mouse cursor disappears from the projection screen of the left projector and appears again on the operation screen. . If necessary, the user performs the adjustment process in the same manner on the right screen,
When the adjustment of the screen position is completed, an “OK” button 78 on the operation screen is pressed.

Next, in the screen data input processing shown in step S3 of FIG. 3, when HTML format data is input, raster data is generated using a known rendering technique. In this embodiment, since two projectors each having 640 × 480 pixels are used, the screen size of the raster data to be generated is 960 × 720 pixels so that the total number of pixels is almost 4: 3. I do. This raster data is temporarily recorded on the memory 38.

Next, in the divided image generation processing shown in step S4 of FIG. 3, the raster data generated in the previous step is divided and transformed to generate image data to be transmitted to each of the projectors 14 and 16. I do. For example, the data to be transmitted to the first projector 14 on the left side includes 960 × 720 pixels on the left side of the recorded raster data,
Perspective transformation parameters are determined so as to convert to the four corner positions of the display screen obtained by screen position adjustment, and perspective transformation is performed using the parameters.

However, here, 484 on the left side of the entire screen is displayed.
A portion corresponding to × 720 pixels is deformed, and a boundary portion is made inconspicuous by giving a gradient such that the rightmost eight pixels in the entire screen gradually become darker as approaching the image edge. Second projector 16 on the other right side
, Image data is generated in the same procedure as above.
The divided image data generated in this manner is transmitted to each of the projectors 14 and 16 and projected (Step S).
5).

As described above, according to the present embodiment, it is possible to project a high-definition, large-screen image using a small number of image projection means without being affected by the resolution of each image projection means. Can be.

Further, according to the present embodiment, the direction, arrangement, screen position, and the like of the projection screen can be easily adjusted. At this time, if the user makes adjustments with reference to the center line, the corners and the center of the image can be matched, so that the images on the entire connection side can be matched.

If the user makes adjustments with reference to the overlapping lines, the connection can be made without any gap between the images. In addition, when the user adjusts the position of the display area on the screen, it can be easily adjusted only by a simple operation of dragging the marker with a mouse or the like.

The image conversion method and image projection method described in the first to fifth embodiments are realized by executing a prepared program on a computer such as a personal computer or a workstation. This program is HD (hard disk), FD
(Floppy (registered trademark) disk), CD-ROM,
The program is recorded on a computer-readable recording medium such as an MO or a DVD, and is executed by being read from the recording medium by the computer. Further, the program may be a transmission medium that can be distributed via a network such as the Internet.

[0060]

As described above, according to the first aspect of the present invention, the projection image data is divided into a plurality by the divided image data generating means, and each of the divided image data is individually divided by the plurality of image projecting means. In order to adjust the screen projected by the projection screen adjustment means by rotating a predetermined angle to the screen, without being affected by the resolution of the image projection means, using a small number of image projection means, A high-definition, large-screen image can be projected, thereby connecting multiple images accurately, making the boundary part inconspicuous, and using a small number of projectors for a high-definition, large-screen image. There is an effect that an image projection system capable of projecting an image is obtained.

According to the second aspect of the present invention, since the projection screen adjusting means includes the screen orientation / arrangement setting means and the screen position adjusting means, the screen projected by the plurality of image projecting means is provided. The orientation and position of the projected screen can be adjusted while viewing the projected screen, thereby connecting multiple images accurately and making the boundaries inconspicuous, reducing the number of projectors. This provides an effect that an image projection system that can project a high-definition and large-screen image using the number of devices is obtained.

According to the third aspect of the present invention, the center screen is displayed on the adjustment screen of the screen position adjustment means in the vertical and horizontal directions of each screen projected from the plurality of image projection means. Can be adjusted by referring to its center line when connecting the, and the entire side can be matched using the corners and center of the image,
It is possible to obtain an image projection system capable of projecting a high-definition and large-screen image using a small number of projectors while accurately connecting a plurality of images and making the boundary portions inconspicuous. .

According to the fourth aspect of the present invention, on the adjustment screen of the screen position adjusting means, lines for overlapping the respective screens projected from the plurality of image projecting means are displayed. When connecting images, it is possible for the user to refer to the line and make adjustments, so that the images can be connected in an overlapped manner without gaps, so that multiple images can be accurately connected. An effect is obtained that an image projection system that can connect and make the boundary part inconspicuous and project a high-definition and large-screen image using a small number of projectors can be obtained.

According to the fifth aspect of the present invention, the adjustment screen of the screen position adjusting means has markers for position adjustment near the four corners of the display area of each screen projected from the plurality of image projecting means. Since the display is performed, the user can easily adjust the position of the display area of the screen by dragging the marker with a mouse or the like when adjusting the position of the display area, thereby connecting a plurality of images accurately and This makes it possible to obtain an image projection system capable of projecting a high-definition and large-screen image using a small number of projectors by making the boundary portions inconspicuous.

According to the present invention, the projection image data is divided into a plurality of parts by the divided image data generating step, and each of the divided image data is individually rotated by a predetermined angle by the plurality of image projection steps. In order to adjust the screen projected by the projection screen adjustment step, without affecting the resolution of the image projection step, using a small number of image projection steps,
A high-definition, large-screen image can be projected, thereby connecting multiple images accurately, making the boundary part inconspicuous, and using a small number of projectors for a high-definition, large-screen image. There is an effect that an image projection method capable of projecting an image is obtained.

According to the seventh aspect of the present invention, since the projection screen adjustment step includes the screen orientation / arrangement setting step and the screen position adjustment step, a screen projected by a plurality of image projection steps is provided. The orientation and position of the projected screen can be adjusted while viewing the projected screen, thereby connecting multiple images accurately and making the boundaries inconspicuous, reducing the number of projectors. This provides an effect that an image projection method capable of projecting a high-definition and large-screen image using the number of images is obtained.

According to the invention described in claim 8, the center screen is displayed on the adjustment screen adjusted by the screen position adjustment step in the vertical and horizontal directions of each screen projected by the plurality of image projection steps. As a result, when connecting images, the user can refer to the center line to make adjustments, and use the corners and center of the image to match the entire side, which allows multiple images to be accurately And an image projection method capable of projecting a high-definition and large-screen image using a small number of projectors, while making the boundary portion inconspicuous.

According to the ninth aspect of the present invention, a line for overlapping each screen projected by a plurality of image projection steps is displayed on the adjustment screen adjusted by the screen position adjustment step. As a result, when connecting images, it is possible for the user to refer to the line and make adjustments, and the images can be connected in a state where the images overlap with each other without gaps, thereby making it possible to connect a plurality of images. Is accurately connected and the boundary portion thereof is made inconspicuous, so that an image projection method capable of projecting a high-definition and large-screen image using a small number of projectors is obtained.

According to the tenth aspect of the present invention,
In the adjustment screen adjusted by the screen position adjustment step, markers for position adjustment are displayed near the four corners of the display area of each screen projected by the plurality of image projection steps, so that the position adjustment of the display area of the screen is performed. The user can easily adjust the position by simply dragging the marker with a mouse or the like, thereby connecting multiple images accurately and making the boundaries inconspicuous, thus reducing the number of projectors. This provides an effect that an image projection method capable of projecting a high-definition and large-screen image using the number of images is obtained.

According to the eleventh aspect of the present invention,
By recording a program for causing a computer to execute the method according to any one of claims 6 to 10, the program becomes machine-readable, whereby the operations of claims 6 to 10 are realized by the computer. There is an effect that a recording medium capable of performing the above is obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a schematic configuration of an image projection system according to an embodiment;

FIG. 2 shows an image projection system according to the embodiment;
3 is a functional block diagram for performing processing in the host computer.

FIG. 3 is a flowchart illustrating an operation of the image projection system according to the present embodiment.

FIG. 4 is a diagram showing an example of a screen for performing screen orientation / arrangement setting processing displayed on the operation unit of the host computer of the image projection system according to the present embodiment.

FIG. 5 is a diagram showing an example of a screen for performing a screen position adjustment process displayed on the operation unit of the host computer of the image projection system according to the present embodiment.

FIG. 6 is a diagram showing a conventional example in which a divided image is projected on a screen and synthesized using two projectors in the horizontal direction and the vertical direction in the image projection system according to the present embodiment.

FIG. 7 is a diagram showing a conventional example in which a divided image is projected on a screen and synthesized by using three projectors in the horizontal and vertical directions of the image projection system according to the present embodiment.

FIG. 8 is a diagram illustrating a connection state of two projection images in the image projection system according to the present embodiment.

FIG. 9 is a diagram illustrating an example in which two projection images are connected in a mismatched state in the image projection system according to the present embodiment.

FIG. 10 is a diagram illustrating another example in which two projection images are connected in a mismatched state in the image projection system according to the present embodiment.

[Explanation of symbols]

 10 Image Projection System 12 Host Computer 14 First Projector 16 Second Projector 18 First Projection Screen 20 Second Projection Screen 22 Monitor Camera 30 Operation Unit 32 Screen Orientation / Arrangement Setting Unit 34 Screen Position Adjustment Unit 36 Image Data Input Unit 38 Memory 40 divided image generation unit 68 overlap area 84, 86 center line 80, 82 displayable area 88, 90 marker

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G09F 9/40 G09F 9/40 C 5G435 G09G 5/36 H04N 5/74 D H04N 5/74 17/04 Z // H04N 17/04 G09G 5/36 520K F term (reference) 2H059 BA12 5C058 BA35 BB25 EA03 EA31 5C061 BB15 CC05 EE17 EE21 5C082 AA01 AA02 AA03 AA27 AA34 BA12 BA35 BA41 BB02 CA05 BC05 BC05 BC05 DA86 DA89 MM09 MM10 5C094 AA05 AA14 CA24 DA01 GA10 HA10 5G435 AA01 BB17 CC12 DD05 DD09 LL15

Claims (11)

[Claims] A divided image data generating means for dividing the projected image data into a plurality of image data; and a plurality of image projecting means for individually rotating each image data divided by the divided image data generating means by a predetermined angle and projecting the image data on a screen. An image projection system, comprising: a projection screen adjustment unit that adjusts a screen projected by the plurality of image projection units. 2. The projection screen adjustment unit includes: a screen orientation / arrangement setting unit configured to set an orientation and an arrangement of a screen projected by the plurality of image projection units; and a screen projected by the plurality of image projection units. The image projection system according to claim 1, further comprising: a screen position adjusting unit that adjusts the position of the projection screen, wherein each setting and adjustment is performed while viewing the projection screen. 3. The adjustment screen of the screen position adjustment means includes:
3. The image projection system according to claim 2, wherein a center line is displayed on each of the screens projected from the plurality of image projection units. 4. The adjustment screen of the screen position adjustment means includes:
The image projection system according to claim 2, wherein a line for overlapping each screen projected from the plurality of image projection units is displayed. 5. The adjustment screen of the screen position adjustment means includes:
The image projection system according to any one of claims 2 to 4, wherein markers for position adjustment are displayed near four corners of a display area of each screen projected from the plurality of image projection units. . 6. A divided image data generating step of dividing projection image data into a plurality of image data, and a plurality of image projecting steps of individually rotating each image data divided by the divided image data generating step by a predetermined angle and projecting the image data on a screen. An image projection system, comprising: a projection screen adjustment step of adjusting a screen projected by the plurality of image projection steps. 7. The projection screen adjustment step includes: a screen orientation / arrangement setting step of setting an orientation and an arrangement of a screen projected by the plurality of image projection steps; and a screen projected by the plurality of image projection steps. 7. The image projection method according to claim 6, comprising: a screen position adjusting step of adjusting the position of the image, wherein each setting and adjustment is performed while viewing the projection screen. 8. The adjustment screen adjusted in the screen position adjustment step, wherein a center line is displayed vertically and horizontally on each screen projected by the plurality of image projection steps. Image projection method. 9. The adjustment screen adjusted in the screen position adjustment step displays a line for overlapping each screen projected by the plurality of image projection steps. 9. The image projection method according to 7 or 8. 10. An adjustment screen adjusted in the screen position adjustment step, wherein markers for position adjustment are displayed near four corners of a display area of each screen projected by the plurality of image projection steps. The image projection method according to any one of claims 7 to 9, wherein: 11. A computer-readable recording medium on which a program for causing a computer to execute the method according to claim 6 is recorded.