JP3266454B2 - Video image projection method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of projecting an image using a video image projector, and more particularly to a method of projecting an image in an image pavilion at an event site, various simulators, or a planetarium. .

[0002]

2. Description of the Related Art Unlike the video facilities of ordinary dramatic movies, the above-mentioned video facilities often aim to provide a simulated experience of viewing a real natural phenomenon as if it were observed on the spot. The effect of moving the viewer's viewpoint by scrolling and projecting a continuous image of the object up, down, left, and right is often used. For example, taking a planetarium as an example, assuming that the viewer is on a spaceship, to simulate the situation, project a landscape in outer space that wants a close-up view of a planet etc. and scroll it Then, the viewer moves his / her point of view, so that he or she is in the illusion of flying in space on a spaceship.

In the above case, there are the following two means for performing such projection. When a still image is projected on the dome surface, the image is projected all around the dome by the projector, and the image is rotated by rotating the projector.

When a moving image is projected on the dome surface, an image scrolled at the stage of shooting is projected by a fixed projector.

[0005]

However, in the above case, the scrollable range is determined by the range of the projected image developed over the entire circumference of the dome. There was a problem that the scrollable range was too short to reproduce the scenery when flying in outer space on a spaceship.

In addition, in such a case, the range and speed of movement of the viewpoint are determined by scrolling at the time of photographing an image, so that there is a problem that the degree of freedom in effect is small.

SUMMARY OF THE INVENTION An object of the present invention is to provide a video image projection method which solves the above-mentioned problems of the prior art, and records image data of a continuous image of an object in an image recording means. , along with obtaining a projected image takes out the image data of the image cut out in an arbitrary range from the image data, characterized in that scrolling the projection image by sequentially moving the range of the image to be cut out, more particularly Image of the area to be scrolled
Is an image in a format obtained by dividing this image into multiple
Data is recorded on a plurality of image recording means as data,
By calling and compositing image data as needed
From the synthesized image data
Extract the image data of the image cut out to the range and project
Obtain the image and move the range of the image to be cut out sequentially.
Let the viewer scroll by this projected image
Is characterized by obtaining a viewpoint moving effect.

[0008]

According to the present invention, image data of an image in a range to be scrolled is recorded in advance. Then, when there is an instruction from the outside, for example, an instruction to look at the west landscape in front, the landscape of the instruction is cut out from the above image data from the recorded image data and the position data such as the azimuth. Play back to get the projected image. Furthermore, by moving the range of the image to be cut out sequentially in an arbitrary direction and at an arbitrary speed by an instruction from the outside, for example, an instruction to sequentially change the scenery located in front of the camera, not only the still image but also the scrolling can be taken in advance. The effect of moving the viewpoint can be obtained even for a moving image that has not been moved.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. First, to facilitate understanding of the present invention,
The base invention will be described with reference to FIGS. here
Is an image of the range to be scrolled into one image P
And the image data P in the range to be projected from here
1 is cut out and projected as a projected image 10 from the projector 6 (see FIGS. 3 and 4).

[0010] Figure 1 is a block circuit diagram of a main part of this assumption invention. In the figure, reference numeral 1 denotes an input device from which data such as the azimuth, range, direction, and moving speed of an image to be cut out is input.

Reference numeral 2 in the figure denotes a control device, which controls an image reproducing device 3 and a reading device 7 described below in order to analyze data designated by the input device 1 and to extract necessary image data.

The image reproducing device 3 records the image data of the image in the range to be scrolled in advance, and outputs the image data to the image temporary storage memory 8 according to the instruction from the control device 2.

A reading device 7 reads necessary image data from a temporary image storage memory 8 according to an instruction from the control device 2 and outputs the image data to the projector 6.

The flow of the processing according to the present invention will be described below with reference to the flowchart of FIG. (Procedure S1) Data such as the direction, range, direction, and speed of an image to be cut out is input from the input device 1. (Procedure S2) Data instructed from the input device 1 is analyzed in the control device 2, and a position to be cut out from the image data is determined. (Step S3) Instruct the image reproducing device 3 to reproduce. (Step S4) The image data output from the image reproducing device 3 is developed on the image temporary storage memory 8. (Step S5) Based on the result analyzed by the control device 2, the reading device 7 is instructed to which part of the image temporary storage memory 8 the image data to be cut out corresponds. (Step S6) The reading device 7 reads the image data of the corresponding portion on the temporary image storage memory 8 and outputs it to the projection device 6. * The above steps S3 and subsequent steps are repeated while sequentially moving the range of the image data to be cut out.

In the above invention, the scroll pair
The size of the image in the elephant range is enormous, and one image
May not be recorded. In the present invention ,
In the case of the above-described premise invention , an image in a range to be scrolled was recorded as one image, but a plurality of image recordings were formed as image data in a form obtained by dividing this image into a plurality of cutout images. A desired image is obtained by recording the image data in the means and calling and synthesizing the image data as necessary, and a projection image is obtained by extracting image data of an image cut out to an arbitrary range from the synthesized image data. .

FIGS. 7 to 10 show examples of images according to the embodiment of the present invention . Here, the image P in the range to be scrolled is divided into three pieces of image data P21, P22, and P23 to the left and right, and the projection image
As a projection.

In this case, for example, the projected image 2 in FIG.
0 corresponds to the divided image data P21 in FIG.
When the image data is changed to image data, image data in an intermediate state is naturally required. However, if this intermediate image data is prepared, the amount of data required for all intermediate images is enormous. Therefore, since the image data P21, P22, and P23 in FIG. 8 are obtained by dividing the originally continuous data at an arbitrary position, if it is considered that the image data P21, P22, and P23 are reconnected and the division position is changed, the intermediate image data can be obtained. Can be. P23 to P shown in FIG. 10 (in this figure, the image data is switched in the order of P23, P24, and P25)
The 25 image data are created based on this idea.

FIGS. 11 and 12 show different examples of the above division. Here, the image P in the range to be scrolled is divided into nine pieces of image data P31 to P39 vertically and horizontally and projected as the projected image 20 from the projector 26. Then, as described above, the divided image data P34, P35, P37, and P38 are connected again to change the division position and obtain image data P40. When such a division method is adopted, scrolling can be performed in all directions such as up, down, left, right, and diagonal as in the case of the first embodiment.

FIG. 5 is a block circuit diagram of a main part of this embodiment. In the figure, reference numeral 21 denotes an input device from which data such as the azimuth, range, direction, and moving speed of an image to be cut out is input.

In the figure, reference numeral 22 denotes a control device, which analyzes the data instructed from the input device 1 and controls an image reproducing device 23, a switching device 24 and a synthesizing device 25 described below in order to extract necessary image data. Control.

A plurality of image reproducing devices 23 are prepared, and image data of an image in a range to be scrolled is divided into a plurality of pieces and recorded as image data of a format.

The switch 24 switches the signal line into which the image data enters according to the instruction from the control device 22 according to the instruction, and outputs the signal line to the synthesizing device 25.

The combining means 25 converts the input image data into
Each is divided into the designated shapes and further synthesized, and output to the projector 26.

The flow of processing in this embodiment will be described below with reference to the flowchart of FIG. (Step S21) Data such as the azimuth, range, direction, and speed of the image to be cut out is input from the input device 21. (Procedure S22) The control device 22 analyzes the data specified by the input device 21 to determine what kind of image should be displayed, and in order to create that image, which image reproducing device and which image Using the data, calculate the percentage of the composite. (Procedure S23) The reproduction is instructed to the reproduction apparatus 23 determined by the above procedure. (Procedure S24) The reproduction device 23 instructing the reproduction is instructed to the image switch 24, the signal line is switched, and the signal line is output to the synthesizing device 25. (Step S25) A position to switch for each image data is specified. (Step S26) The images are combined. (Step S27) Output to the projection device 26. * The above steps S3 and subsequent steps are repeated while sequentially moving the range of the image data to be cut out.

[0025]

The present invention having the above configuration has the following specific effects. Unlike the conventional means for rotating a projector, there is no limit to the range of images that can be scrolled,
In particular, when the image of the object is divided into a plurality of pieces and recorded as in the second embodiment, an enormous range of scrolling can be performed, so that an effective viewpoint moving effect can be obtained for the viewer. A realistic simulated experience effect can be obtained.

[0026] scroll left and right, up and down, because it can also be diagonally any direction, effective viewpoint movement effect is obtained at the viewer, simulated experience the effect of verisimilitude can be obtained.

The range and speed of scrolling are not determined by scrolling at the time of photographing an image as in the prior art, but can be set arbitrarily at the time of projection, so that the degree of freedom of production is extremely high.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram of the invention on which the present invention is based;

FIG. 2 is a flowchart of the above.

FIG. 3 is an explanatory diagram showing clipping of an image according to the first embodiment;

FIG. 4 is a perspective view of a projector and a projected image according to the embodiment.

FIG. 5 is a block circuit diagram of an embodiment of the present invention.

FIG. 6 is a flowchart of the above.

FIG. 7 is an explanatory diagram showing clipping of an image according to the embodiment;

FIG. 8 is an explanatory diagram showing clipping of an image.

FIG. 9 is a perspective view of a projector and a projected image according to the embodiment.

FIG. 10 is an explanatory diagram showing clipping of an image.

FIG. 11 is an explanatory diagram showing clipping of an image.

FIG. 12 is an explanatory diagram showing clipping of an image according to the embodiment;

[Explanation of symbols]

 P image P1 Cut out image

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04N 5/74

Claims (1)

(57) [Claims] 1. An image in a range to be scrolled ,
This image is divided into a plurality of pieces and recorded in a plurality of image recording means as image data in a cut-out format, and these image data are called and combined as necessary to obtain a desired image, and the combined image is obtained. with obtaining the projected image takes out image data of the clipped image to the given range from the data, <br/> by the range of the image is successively moved to cut the viewer by scrolling the projected image Contact
And a method of projecting a video image, wherein a viewpoint moving effect is obtained .