JPH04139484A - Simulation device for lighting operation - Google Patents

Abstract

PURPOSE:To simulate and display a state of lighting by plural lighting apparatuses similarly to the state in an actual space to be photographed by displaying an image formed by a shape setting means and a lighting setting means. CONSTITUTION:The shapes in the space to be photographed are set by the shape setting means 1 which sets the three-dimensional shapes of a studio and a set installed in the studio and the positions, radiation directions, and basic light source information on the light distributions of the lighting apparatuses lighting the space to be photographed is set by the lighting setting means 2 which sets lighting in the studio; and the extent of the influence of light control by a light control member is calculated according to whether or not each lighting apparatus has a light control member and the light distribution of the lighting apparatuses is calculated according to the light control influence extent and basis light source information. A display means 5 displays the image in the space to be photographed in the state of lighting by the respective lighting apparatuses. Consequently, the lighting operation in the space to be photographed can be simulated and the simulation state can be reproduced faithfully without any puzzlement when the lighting apparatuses are actually set.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is directed to a lighting operation simulation system that uses a computer to simulate the program production work that is being carried out in a filming space of a broadcasting station, for example. It is related to the device.

(Prior art) When producing a program, a broadcasting station considers the shape and position of the space set to be photographed, the state of the lighting to the set,
Meetings are held in advance regarding camera work for filming the set. These meetings are based on set drawings and storyboards, and are held between program producers and set designers.
Each person in charge, such as 1 lighting designer and 1 TV cameraman, implements the project based on their experience.

(Problem to be solved by the invention) As mentioned above, based on set drawings and storyboards, discussions are held between each person in charge about the location of the set, lighting conditions, camera work, etc., based on experience. Because each person in charge had a different image, it took a very long time to unify the image, and meetings could not be held efficiently. In addition, since the actual conditions cannot be reproduced even after a meeting is held, the set position, lighting conditions, camera work, etc. must be set through repeated trial and error at the scene of the shooting space, which increases the amount of time spent making adjustments. Therefore, the efficiency of operating the space to be photographed was poor.

By the way, conventionally, there is no device that simulates the operation of such a space to be photographed. In addition, the lighting equipment in the studio uses a light blocking plate called Pandoor, but if only the basic lighting distribution is input, the simulation will be quite different from the actual appearance. I imagine it will be done.

The present invention has been made in view of these points, and is capable of simulating the lighting operation of a space to be photographed.
In particular, when setting the lighting, you can specify the same lighting settings as in reality, and you can faithfully reproduce the simulation state without being confused when actually setting the lighting equipment.
Another object of the present invention is to provide a lighting operation simulation device that allows easy setting of lighting.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides a simulated shape setting means for setting the shape in the space to be photographed, and basic features of a plurality of lighting fixtures arranged in the space to be photographed. After inputting the light source information and calculating the degree of light control effect of the light control member according to the presence or absence of a light control member for each lighting fixture, the light distribution of the lighting equipment is calculated based on the degree of light control effect and basic light source information. The apparatus includes an illumination setting means for performing calculations, and a display means for displaying an image formed by the shape setting means and illumination setting means.

The above-mentioned basic light source information includes the position of the lighting fixture, the irradiation direction, and the light distribution when the lighting fixture is not dimmed, and it is particularly desirable to store the light distribution in memory in advance.

Further, the light controlling member includes a pan door, a color filter, a slit plate, and a lens.

(Function) In the present invention, the shape setting means sets the shape of the space to be photographed, and the lighting setting means sets the basic light source such as the position, irradiation direction, and light distribution of the lighting equipment that illuminates the space to be photographed. After setting the information, the degree of light control effect of the light control member is calculated according to the presence or absence of a light control member for each lighting fixture, and then the light distribution of the lighting equipment is calculated based on the degree of light control effect and basic light source information. Do the calculations.

Based on these settings, the display means displays an image of the illuminated space illuminated by each lighting fixture.

(Example) Hereinafter, the configuration of an example of the present invention will be described with reference to the drawings.

FIG. 1 shows a general configuration of a lighting operation simulation device, which includes a shape setting means 1 for setting the three-dimensional shape of a studio and a set installed in the studio, and a lighting setting means 2 for setting the lighting inside the studio. and camera setting means 3 for setting the viewpoint, point of view, and angle of view of the camera for photographing the inside of the studio, and image processing for creating an image by setting the shape setting means 1, lighting setting means 2, and camera setting means 3. and a display means 5 for displaying the image created by the image processing means 4.

FIG. 2 shows a specific configuration of a lighting operation simulation device having the above-mentioned functions, in which the shape setting means 1,
The functions of illumination setting means 2, camera setting means 3, and image processing means 4 are each provided as software.

Reference numeral 11 in the figure is a CPU module that performs arithmetic processing based on software, and this CPU module 11 has a memory 13. No.1 for saving programs and data
- A hard disk unit 14 is connected. Also, 1
Reference numeral 5 denotes a keyboard 15 for inputting various data such as shape data, illumination data, and camera data, and for issuing operation commands for various functions.This keyboard 15 is connected to the pass line 12 via an ink-face unit 16.

Furthermore, 17 is a monitor serving as the display means 5, on which image data stored in a video memory 18 connected to the pass line 12 is displayed.

Next, the simulation method will be explained with reference to the flowcharts of FIGS. 3 and 7.

If you input the shape data, lighting data, and camera data (
Step 1), the CPU module 11 is the shape setting means 1
, the functions of the lighting setting means 2 and the camera setting means 3 to set the shape of the studio and the three-dimensional shape of the set, to set the lighting, and to set the camera (step 2.3.4).

The shape data to be inputted includes the shape of the studio,
There are three-dimensional shapes and positions of sets installed in this studio. Further, the lighting data includes the selection of lighting equipment in the studio, the horizontal and vertical positions of the lighting equipment, the irradiation direction, the irradiation angle, the dimming level, the focus level, etc.

Furthermore, camera data includes camera viewpoint, gaze point,
There are display modes (the mode can be switched by operating a designated switch such as close-up, bust shot, waist shot, etc., by actually taking a picture with a camera), which will be described later. These data are stored in the keyboard 15.
It can be input using a mouse, etc. (not shown).
Additionally, if the set data is compiled into a database, input can be made from that database.

Further, the setting status is displayed on the monitor 17. FIG. 4 shows the display screen of the monitor 17, and this display screen consists of the flat display section 21, front display section 22, and side display section 2 of the studio.
3, a camera screen display section 24, and a control mode display section 25
It is divided into a flat display section 2+.

The front display section 22 and the side display section 23 display the plane, front, and side surfaces of the set, respectively.

Then, when the shape, lighting, and camera are set (step 5), the CPU module 11 uses the function of the image processing means 4 to generate an image of the studio taken by the camera based on the set lighting data and camera data. Create (Step 6) The lighting equipment used in the studio is equipped with multiple light shielding plates called pandoors in the light projecting section, and the actual light distribution can be adjusted by changing the inclination of the light shielding plates. It can be changed. therefore,
Regarding the lighting settings in Step 3, after inputting the basic light source information when Pandoor is not used (Step 31), decide whether to use Pandoor (Step 32), and if YES, select Pandoor. information is inputted (step 33), and the shading range is calculated based on a pseudo shading angle and shading range correspondence data table (step 34) to generate light distribution data. (Step 35). Although the shading range data considerably slows down the calculation speed, the actual shading range itself may be calculated based on the shape and inclination angle of the pan door.

If NO in step 32, light distribution data is generated based on the basic light source information and the next step 36
Proceed to.

In this way, lighting calculations are performed based on the individual light distribution data of each lighting fixture, and the light distribution for the entire studio is calculated (step 36).

Then, a simulated image is displayed on the camera screen display section 24 based on the information set in each step 1 to 4. Since the display on the camera screen display section 24 uses lighting data that takes pandoor into consideration as described above,
The display is more similar to the actual photographed image.

Furthermore, even after the simulation results are displayed on the camera screen display section 24, if you reset the lighting data or set the camera work such as the camera viewpoint (step 7).
), the screen after the settings have been changed can be displayed on the camera screen display section 24.

Therefore, by using this simulation device for program production meetings, you can check the set position, lighting conditions, camera work, etc. on the monitor 17, and you can accurately display the image of the person in charge and communicate with other people in charge. Meetings can be held easily, the images of each person in charge can be unified, and meetings can be held efficiently. Furthermore, since it is possible to simulate the situation in the actual studio, time spent on trial and error at the studio site can be omitted, and the operational efficiency of the studio can be improved.

Next, the camera view angle setting function of the camera setting means 3 will be explained. This function switches the angle of view according to the display mode that shows the viewpoint of the point of view by setting the viewpoint and point of interest of the camera that photographs the inside of the studio. This display mode includes camera work that is actually used, such as close-up, bust shot, waist shot, knee shot, full figure, one shot, two shot, group shot, and loose shot.

Next, the camera view angle setting operation will be explained with reference to the flowcharts of FIGS. 5 and 6.

Horizontal and vertical coordinates of viewpoint S (x6°y, ,
z, ), set the horizontal and vertical coordinates (X+, V+ + Z+) of the gaze point t, and further set the range mode (step 11.12.13). Angle φ is calculated using the following equation (step 14). b is the width of the screen frame p determined by the setting of the display mode.

φ=2tan 2 , - +y, -y, +z, -1,2 Then, the setting results are displayed on the flat display section 21, front display section 22, and side display section 23 of the monitor 17 shown in FIG. S, point of view t, screen frame p1 View angle lines C connecting the viewpoint and the four corners of the screen frame are displayed. Note that the view angle line C may be a half straight line starting from the viewpoint (a straight line where one end is from the starting point and the other end is infinitely far away).

Therefore, when performing a simulation, if you set the display mode such as close-up or bust shot when setting the camera, the angle of view will change according to the display mode, so the simulation It is possible to specify the same camera work both in real time and in real life, and it is possible to faithfully reproduce the simulated state without being confused when actually taking pictures with the camera.

The flat display section 21, front display section 22, and side display section 23 of the monitor 17 also display the shape of the inside of the studio as well as angle of view lines C connecting the camera's viewpoint S1 point of view t1 screen frame p1 viewpoint and the four corners of the screen frame. are displayed at the same time, so you can check the state in which the camera is shooting, and you can easily set the camera's viewing angle.

Furthermore, if the setting of the display mode by the camera setting means 3 is changed, the size of the screen frame p and the angle of view φ are changed according to the display mode, and the size of the scene frame p displayed on the monitor 17, etc. Switch.

It should be noted that the program has multiple scenes, and each scene has different camera shooting conditions such as the close-up and bust shot, but the screen of the monitor 17 is divided into multiple sections to display multiple scenes at the same time. You can also do that.

[Effects of the Invention] According to the present invention, it is possible to simulate and display a state illuminated by a plurality of lighting equipment in the same way as the situation in the actual space to be photographed. By using this, the person in charge can accurately display an image of the set position, lighting, etc. intended by the person in charge, and can have a meeting with other people in charge, making it easier to centralize the image of each person in charge and making the meeting more efficient. Furthermore, since the situation can be simulated in the same manner as in the actual lighting space, the time spent on trial and error at the setting site such as installing lighting equipment can be omitted, and the operational efficiency of the illuminated space can be improved.

Furthermore, after setting basic light source information such as the position, irradiation direction, and light distribution of the lighting equipment that illuminates the space to be photographed using the lighting setting means, control is performed according to the presence or absence of the light control member of each lighting equipment. After calculating the light control effect of the light component, the light distribution of the lighting equipment is calculated based on the light control effect and basic light source information, so when setting the lighting, you can specify the same lighting settings as the actual one. , it is possible to faithfully reproduce the simulation condition without being confused when actually setting up the lighting equipment.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a lighting operation simulation device showing an embodiment of the present invention, Fig. 2 is a block diagram showing its specific structure, Fig. 3 is a flowchart of the simulation, and Fig. 4 is an explanation of the display screen. 5 is an explanatory diagram of the settings of the camera viewpoint, point of interest, etc., FIG. 6 is a flowchart of the camera settings, and FIG. 7 is a detailed flowchart of the illumination settings. 1...Shape setting means. 5...Display means. 3...Lighting setting means. Patent Applicant Toshiba Lightic Co., Ltd. Agent Patent Attorney Ono 1) Yoshihiro'$1+! 1 throat χS Zuo ¥9 figure χ

Claims (1)

[Claims] (1) A simulated shape setting means for setting the shape of the space to be photographed; inputting basic light source information of a plurality of lighting fixtures arranged in the space to be photographed, and determining the presence or absence of a light control plate for each lighting fixture; a lighting setting means that calculates the degree of light control influence of the light control member according to the light control member, and then calculates the light distribution of each lighting fixture based on the degree of light control influence and basic light source information; the shape setting means and the lighting A lighting operation simulation device comprising: a display means for displaying an image formed by the setting means;