JPH04212193A - Illumination control method - Google Patents

Abstract

PURPOSE:To save the time for the trial and error spent for setting an illuminating condition on an illumination site and to improve the operating efficiency of a studio, etc., by previously simulating the illumination state, thereby reproducing the simulated illumination in actuality. CONSTITUTION:A computer graphics device which simulates the illumination condition is provided. Illuminating appliances 2 which reproduce the illumination condition simulated by the computer graphics device 1 are provided.

Description

[Detailed description of the invention]

[Object of the invention]

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting control system for controlling the lighting conditions of, for example, a studio of a broadcasting station or a stage of a theater.

0003

[Prior Art] For example, when producing a broadcast program,
We hold meetings in advance to discuss the shape and location of the studio set, lighting conditions for the set, and camera work to photograph the set. These meetings are conducted by program producers, set designers, lighting designers, TV cameramen, and other personnel based on their experience, based on set drawings and storyboards.

0004

[Problem to be Solved by the Invention] As mentioned above, when producing a broadcast program, the lighting conditions of the set are discussed based on set drawings and storyboards. Setting the lighting conditions was a process of trial and error, which took a long time and made the studio less efficient.

[0005] The present invention has been made in view of these points, and it is possible to easily set the lighting conditions at the actual site and improve the operational efficiency of the studio by simulating the lighting conditions in advance. The purpose is to provide a lighting control system that can

[Configuration of the invention]

[0007]

[Means for Solving the Problems] The invention according to claim 1 is a lighting control system for controlling the lighting state of an illuminated object, comprising:
A computer graphics device that simulates the illumination state of an illuminated object by inputting shape data of the illuminated object, lighting data for illuminating the illuminated object, and data on how to view the illuminated object; It is equipped with a lighting fixture that reproduces the lighting conditions.

The invention according to claim 2 is a lighting control system for controlling the illumination state of an illuminated object, which includes shape data of the illuminated object, illumination data for illuminating the illuminated object, and data on how to view the illuminated object. a computer graphics device that simulates the illumination state of an illuminated object based on input; a lighting fixture that emits light to the illuminated object; and a computer graphics device that emits light to the illuminated object; It is equipped with a light control device that controls the light control of the fixture.

The invention according to claim 3 is a lighting control system for controlling the illumination state of an object to be illuminated, which includes shape data of the object to be illuminated, lighting data for illuminating the object to be illuminated, and data on how to view the object to be illuminated. A computer graphics device that inputs data to simulate the illumination state of an illuminated object, a lighting device that makes it possible to control the illumination state, a measuring device that measures the brightness of an illuminated object, and the measurement results of this measuring device and the computer. The lighting system includes an evaluation device that compares a lighting state simulated by a graphics device, and a lighting control device that controls the lighting device based on the evaluation result from the evaluation device.

0010

According to the first aspect of the invention, a lighting condition similar to an actual situation is simulated by a computer graphics device, and control is performed so that the simulated lighting condition is reproduced by an actual lighting fixture.

[0011] In the invention of claim 2, the computer graphics device simulates a lighting condition similar to the actual situation, and the light control device controls the lighting so that the simulated lighting condition is reproduced by the actual lighting equipment. Control the dimming of fixtures.

[0012] According to the third aspect of the present invention, a lighting condition similar to an actual situation is simulated using a computer graphics device. A measurement device measures the lighting condition caused by the actual lighting device, an evaluation device compares the actual lighting condition and the simulated lighting condition, and based on the comparison results, the lighting condition caused by the lighting device is corrected and controlled. Automatically and faithfully reproduces the lighting conditions.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In this embodiment, an example in which a lighting control device is applied to lighting in a studio of a broadcasting station will be explained.

FIG. 1 shows the configuration of a lighting control device, and 1 is a computer graphics device that receives shape data of a studio set as an object to be illuminated, lighting data for illuminating the set, and camera data as data for viewing the set. input to simulate set lighting conditions.

Reference numeral 2 denotes a plurality of lighting fixtures arranged in the studio, and each lighting fixture 2 illuminates the set by irradiating light.

Further, reference numeral 3 denotes a light control device, which controls the light control of the plurality of lighting fixtures 2 so as to reproduce the simulation results of the computer graphics device 1.

As shown in FIG. 2, the computer graphics apparatus 1 includes a set setting means 11 for setting the three-dimensional shape of the studio set, a lighting setting means 12 for setting the lighting of the studio set, and a set setting means 11 for setting the three-dimensional shape of the studio set. Camera setting means 13 for setting camera data for photographing
and image processing means for creating an image of the studio set set by the set setting means 11 taken by the camera using the lighting data and camera data set by the lighting setting means 12 and camera setting means 13. 14, and display means 15 for displaying the image created by this image processing means 14.

FIG. 3 shows a specific configuration of the computer graphics device 1, which includes the set setting means 11, the illumination setting means 12, the camera setting means 13, and the image processing means 14.
Each of these functions is provided as software. 21 in the figure is a CPU that operates based on software.
As a module, this CPU module 21 includes a memory 23 and an external memory hard disk unit 24 connected through a bus line 22. Also, 2
Reference numeral 5 denotes a keyboard for inputting various data such as studio set data, lighting data, camera work data, etc. This keyboard 25 is connected to the bus line 22 via an interface unit 26. Furthermore, 15 is a monitor of the display means, on which image data stored in a video memory 27 connected to the bus line 22 is displayed.

The illumination control method will now be explained with reference to the flowchart in FIG.

When the studio set data, lighting data, and camera data are input to the computer graphics device 1, the CPU of this computer graphics device 1
Module 21 includes set setting means 11 and lighting setting means 1
2. The functions of the camera setting means 13 are used to set the three-dimensional shape of the studio set, set lighting data for the studio set, and set camera data for photographing the studio set.

The studio set data to be input includes the shape and size of the set, the position of the set within the studio, and the like. In addition, lighting data includes the selection of lighting equipment in the studio, the location of lighting equipment, the direction of illumination,
These include irradiation angle, dimming level, focus level, etc. Furthermore, camera data includes camera position, orientation,
There are angles of view, etc. These data are stored on the keyboard 25.
It can be input using a mouse, etc. (not shown).
Also, if you have set data etc. in a database,
You can input from that database.

Furthermore, the setting status is displayed on the monitor 15. FIG. 5 shows the display screen of the monitor 15, and this display screen is
The studio is divided into a flat display section 31, a front display section 32, a side display section 33, a camera screen display section 34, and a control mode display section 35. The display unit 33 displays the plane, front, and side of the set, and also displays the viewpoint position S, direction, and angle of view A of the camera corresponding to the plane, front, and side, respectively.

When the shape of the set, lighting data, and camera data are set, the CPU module 21 uses the function of the image processing means 14 to take a picture of the set with the camera based on the set lighting data and camera data. Create an image of.

The created image is displayed on the monitor 1 shown in FIG.
5 is displayed on the camera screen display section 34. Illumination data is also added to the display on the camera screen display section 34, resulting in a display close to the actual photographed image.

Furthermore, even after the simulation results are displayed on the camera screen display section 34, if you reset the lighting data or set the camera data such as the camera position and angle of view, the camera will be displayed in the state after the settings have been changed. The screen photographed can be confirmed on the camera screen display section 34.

[0027] Therefore, by using this computer graphics device 1 in a meeting for program production, the position of the set, lighting conditions, camera work, etc. can be checked on the monitor 15, and the image of the person in charge can be accurately displayed. This makes it easier to centralize the image of each person in charge, making meetings more efficient.

Then, the simulation results are sent from the computer graphics device 1 to the light control device 3.
is read into. This computer graphics device 1
Data can be transferred from the light control device 3 to the light control device 3 using an online method or an offline method. Online methods include connection by LAN, connection by serial communication, connection by parallel communication, and radio wave communication. On the other hand, offline methods include delivery of floppy disks, optical disks, and magnetic tapes.

The light control device 3 into which the simulation results have been read controls the light control of the plurality of lighting fixtures 2 in the studio so as to reproduce the simulation results.

[0030] Therefore, since the lighting conditions are simulated using the computer graphics device 1 in the same way as the situation in the actual studio, the time spent on trial and error of lighting conditions at the studio site can be omitted, and the operational efficiency of the studio can be improved. can be improved.

[0031] Furthermore, when applying a lighting control device to the lighting of a stage (opera, concert, etc.), although there is no camera like in the studio, there are multiple ways of viewing from the audience seats, which means that there are multiple cameras. It's the same as in the studio.

Next, another embodiment of the present invention will be described with reference to FIGS. 6 to 8.

This embodiment is a lighting control system that controls the illumination state of an illuminated object, and inputs shape data of the illuminated object, lighting data for illuminating the illuminated object, and camera data for viewing the illuminated object. A computer graphics device 1 that simulates the illumination state of an illuminated object, a lighting device 41 that can control the illumination state, a measuring device 42 that measures the brightness of the illuminated object, and a measurement result of the measuring device 42. an evaluation device 43 that compares the illumination state simulated by the computer graphics device 1;
A lighting control device 44 that controls the lighting device 41 based on the evaluation result from the evaluation device 43 is provided.

That is, it is an attempt to faithfully and automatically reproduce the illumination state simulated by the computer graphics device 1.

As shown in FIG. 7, the lighting device 41 automatically controls lighting conditions such as fixture position (including horizontal and vertical directions), light irradiation direction, irradiation angle, focus level, dimming, and color. Use a lighting fixture 45 that allows

The measuring device 42 includes a camera 46 (a broadcast camera is used) and a camera 46 for photographing the lighting environment.
The luminance measuring device 47 measures the luminance of the lighting environment photographed by the camera 46.

The evaluation device 43 includes a condition setting unit 48 for inputting a brightness distribution image obtained in the simulation process of the computer graphics device 1, and also includes a condition setting unit 48 for inputting a brightness distribution image input to the condition setting unit 48 and the measuring device 42.
A processing unit 4 that compares the brightness distribution measurement results obtained with the
It is equipped with 9. Note that the condition setting section 48 allows manual input from a keyboard or the like. In addition, input from the computer graphics device 1 to the condition setting section 48 can be carried out either online as described above or offline.

The lighting control device 44 controls the lighting conditions of each lighting fixture 45 of the lighting device 41, and includes a storage device 50 that stores the set lighting conditions and retrieves and controls the reproduction of the stored lighting conditions. is connected.

The operation will now be explained with reference to the flowchart in FIG.

In the evaluation device 43, the brightness distribution image is input from the computer graphics device 1 to the condition setting unit 48, and the brightness distribution measurement result is input from the measurement device 42, and this brightness distribution image and the brightness distribution measurement result are compared. Then, the improvement range of the brightness distribution is analyzed and the evaluation results are output.

Next, the lighting control device 44 inputs the evaluation results from the evaluation device 43, and determines the lighting fixture 45 that contributes to improving the brightness distribution, as well as the lighting state of the lighting fixture 45.

Next, the lighting device 41 controls the lighting state of the corresponding lighting fixture 45 based on the control of the lighting control device 44.

In this way, by repeatedly comparing the brightness distribution image and the brightness distribution measurement results, the illumination state obtained by simulation is automatically and faithfully reproduced.

Furthermore, by storing the lighting conditions set by the lighting control device 44 in the storage device 50, the lighting conditions can be reproduced as needed.

Therefore, since the computer graphics device 1 can simulate lighting conditions similar to the actual situation and faithfully automatically reproduce the simulated lighting conditions, the amount of time spent on trial and error on lighting conditions at the studio site is reduced. This saves time and improves studio operational efficiency.

[0046]

According to the first aspect of the invention, a lighting condition similar to an actual situation is simulated by a computer graphics device, and the simulated lighting condition is controlled to be reproduced by an actual lighting fixture. This eliminates the time spent on trial and error in setting lighting conditions on-site, and improves the operational efficiency of studios and other facilities.

According to the invention of claim 2, the computer graphics device simulates a lighting condition similar to an actual situation, and the light control device causes the simulated lighting condition to be reproduced by an actual lighting fixture. Since it controls the dimming of lighting equipment, it can eliminate the trial and error time spent setting lighting conditions on site, improving operational efficiency in studios, etc.

According to the third aspect of the invention, a lighting condition similar to an actual situation is simulated by a computer graphics device, the lighting condition by the actual lighting device is measured and compared with the simulated lighting condition, and this comparison is performed. Since the lighting conditions of the lighting equipment are corrected and controlled based on the results, the simulated lighting conditions can be faithfully and automatically reproduced, eliminating the time spent on trial and error in setting the lighting conditions on site, and improving operational efficiency in studios, etc. can be improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of a lighting control system of the present invention.

FIG. 2 is a configuration diagram of a computer graphics device.

FIG. 3 is a specific configuration diagram of a computer graphics device.

FIG. 4 is a flowchart diagram.

FIG. 5 is an explanatory diagram of a display screen.

FIG. 6 is a configuration diagram showing another embodiment of the present invention.

FIG. 7 is a perspective view of a lighting environment.

FIG. 8 is a flowchart diagram.

[Explanation of symbols]

1 Computer graphics device 2
Lighting equipment 3 Light control device 41 Lighting device 42
Measuring device 43 Evaluation device 44 Lighting control device

Claims (3)

[Claims] 1. A lighting control system that controls the illumination state of an illuminated object, the system controlling the illumination state of an illuminated object by inputting shape data of the illuminated object, lighting data for illuminating the illuminated object, and data on how to view the illuminated object. A lighting control system comprising: a computer graphics device that simulates the lighting condition of an object; and a lighting fixture that reproduces the lighting condition simulated by the computer graphics device. 2. A lighting control system that controls the illumination state of an illuminated object, the lighting control system controlling the illumination state of an illuminated object by inputting shape data of the illuminated object, lighting data for illuminating the illuminated object, and data on how to view the illuminated object. A computer graphics device that simulates a lighting condition of an object; a lighting device that irradiates light onto an object; and a computer graphics device that controls dimming of the lighting device to reproduce the lighting condition simulated by the computer graphics device. A lighting control system comprising a dimmer for controlling. 3. A lighting control system that controls the illumination state of an illuminated object, the lighting control system controlling the illumination state of an illuminated object by inputting shape data of the illuminated object, lighting data for illuminating the illuminated object, and data on how to view the illuminated object. A computer graphics device that simulates the lighting condition of an object, a lighting device that can control the lighting condition, a measuring device that measures the brightness of an illuminated object, and a computer graphics device that simulates the illumination state of an object using the measurement results of the measuring device and the computer graphics device. What is claimed is: 1. A lighting control system comprising: an evaluation device that compares the lighting conditions of the lighting device; and a lighting control device that controls the lighting device based on the evaluation results from the evaluation device.