JP2014233064A - Video conversion system, photographing system and look-up table generation server - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video conversion system, a photographing system and an LUT(Look-Up Table) generation server which is installable in accordance with the number of cameras and monitors to be installed, which is capable of confirming the influence of color adjustment in a real time even by any monitor at a photographing site, and capable of performing color reproduction/color adjustment in photography even after the end of photography.SOLUTION: A color adjustment parameter input by a controller 81 is output from a sub-data transmission/reception part 17 of a sub-video conversion device A12 via a router 61 and a network 62 to a main video data transmission part 37 of a main video conversion device 32, and a color conversion LUT is regenerated under the consideration of the color adjustment parameter by an LUT generation part 35, and a new color conversion LUT is stored in an LUT memory 16 of an LUT conversion part 15 of a sub-main body control part 14, and camera video data from a camera A are converted into monitor video data on the basis of the new color conversion LUT by the LUT conversion part 15, and output to a monitor A13.

Description

  The present invention relates to a video conversion system, a photographing system, and a lookup table generation server. More specifically, the present invention improves the efficiency of color design and color adjustment work performed in a video production process, that is, a movie or TV program production process. Is.

  Conventionally, in a movie system, for example, a screening positive film (screening distribution film) used for a film projector or a screening hard disk in which video data for screening used in a digital projector is recorded for the screening of a movie by a projector. Recording media such as (portable display hard disk) have been produced.

  In a movie production workflow for producing such a positive film for screening or a hard disk for screening, a digital film obtained by reading a film film negative film that has been photographed and developed with an image input device such as a telecine device under the supervision of photography. Video data, digital video data shot with a digital camera for movies, digital video data such as computer graphics (CG) created by a computer, etc. are acquired, and an editing process (post-production: Post-production) after the shooting Production), digital video processing / editing / color correction is performed on the acquired digital video data, and audio data is added to create edited video data, that is, video source data. Output to a positive film for screening via a negative film In projected, or converted to the output data, and outputs the screening for a hard disk or the like, or by direct delivery is projecting a digital projector.

The post-production process (post-production), which is the editing process after filming, is generally a collaborative work between a number of people, such as filmmakers, producers (producers), colorists, and various companies. It is necessary to design data for each person and each company, and to design the entire process across each person and each company.
However, since there are no standards for data formats and image conversion workflows, additional work such as format conversion and color space conversion is required, which complicates work, lowers image quality, and increases work man-hours.

For this reason, the standardization of color adjustment in post-production of the post-production of video production is attempted in the movie academy (The Academy of Motion Picture Arts and Sciences: hereinafter abbreviated as AMPAS). FIG. 7 shows an example of the color conversion architecture of the AMPAS-IIF digital movie production workflow standard proposed by AMPAS.
The color conversion architecture of the AMPAS-IIF shown in FIG. 7 basically includes two common color spaces of an input color space ACES (Academy Color Encoding Specification) 100 and an output color space OCES (Output Color Encoding Specification) 102, and between them. Digital video data conversion is performed by a common conversion RRT (Reference Rendering Transform) 104 that associates input / output devices and an input device conversion IDT (Input Device Transform) 106 / output device conversion ODT (Output Device Transform) 108 that converts a common space with an input / output device. Is defined.

The IDT 106 converts captured video data (digital camera color space) of the digital camera 110 into an ACES 100 that is an input common color space. The ODT 108 outputs the output of the digital projector 112 from the OCES 102 that is an output common color space. This is converted into video data (digital projector color space).
That is, in the digital video data conversion system, video data captured by the digital camera 110 is converted to ACES100 by the IDT 106, and video data of computer graphics (CG) 114 is also directly converted to ACES100, and editing processing such as color adjustment by the ACES100. Is converted to OCES 102 by RRT 104, and converted from OCES 102 to output video data of digital projector 112 by RDT / ODT 108.

Further, a standard negative film density APD (AMPAS Printing Density) 116 and an ADX 118 encoding the standard negative film density are defined, and UB conversion / inverse consisting of fixed conversion (Universal Build) and reverse conversion (Universal Unbuild) with the input color space ACES100. Conversion 120 is set, and the digital image data conversion system and the conventional silver salt film system are associated with each other.
In this silver salt film system, image density data read by a film scanner 122 from a film photographed by a film camera is converted into standard negative film density APD 116 density data, and further converted into ADX code 118, It is converted into ACES 100 by UB conversion 120, editing processing such as color adjustment is performed by ACES 100, converted to ADX code 118 by AC 120 again by inverse conversion 120, an inter-negative 126 is created by film recorder 124, and optical print 128. Thus, a positive film for a movie is created and provided to the film projector 130.

Here, ACES100 is defined as a scene-based color space, and has a value obtained by linearly converting the CIE tristimulus values XYZ obtained by measuring the scene itself with a colorimeter. As shown in FIG. The chromaticity of RGB three primary colors to be covered is determined and encoded with 16 bits (bit float). That is, it can be said that the color range and dynamic range of image data that can be described by ACES 100 are unlimited. The reference white color of ACES100 is D60.
In this way, the ACES 100, which is a vast color space, is also a common color space for storing images and CG images taken with film cameras and digital cameras as an original image master, and color adjustment is also performed in the ACES space. Is called.
On the other hand, the OCES 102 is an output color space assuming an ideal display device having a dynamic range of 1,000,000: 1 or more, and is one-to-one associated with the ACES color space 100 via the RRT conversion 104. ing. The OCES 102 is positioned as an internal color space of AMPASIIF, and it is not assumed that a general user directly handles OCES image data.

In this way, AMPAS-IIF provides a standard for post-production of video production, from ACES, a mechanism for converting various video sources into a standard working color space for color adjustment (scene-based color space: ACES). In order to provide a mechanism for converting movies for viewing in movies and on TV to the ideal output device color space (OCES), and a mechanism for color conversion from OCES to existing display devices, Complicated image conversion and color adjustment operations can be made efficient.
In this way, in post-production, following this standard workflow, work can be done in the standard data format and standard color space, eliminating incidental work in image exchange, improving the efficiency of color adjustment work, and improving image quality. The effect of improvement and man-hour reduction can be improved.

However, digital cameras of various manufacturers and models are used for video shooting, and the monitor for confirming the captured video is also of various manufacturers and models, and the color space of the signal displayed on the confirmation monitor There are also various. Therefore, the color cannot be strictly evaluated in the video confirmation at the shooting site, and the color adjustment of the video is performed in post-production, which is a post-process of video production. In post-production video color adjustment, the use of the AMPAS-IIF color conversion architecture can improve color adjustment efficiency, improve image quality, and reduce man-hours. Since the filmmaker who has the right to decide the color is the shooting director at the shooting site, the shooting director who directed the shooting at the site now visits the post-production site and responds to the shooting intention for each scene. We are working on color adjustments necessary for various scenes, cuts and frames while attending with colorists who are color adjustment specialists in post-production and watching the shot images. .
This color adjustment work is usually a process that is completed after trial and error, so you have to see all the images, and you will see the cuts and frames for color adjustment repeatedly. There was a problem that it was a work that took a very long time, and because of the work by a cinematographer and colorist with high labor costs, it resulted in a problem of raising the cost of film production.

  In Patent Document 1, in video production, that is, in the production of a movie or a TV program, it is possible to perform color adjustment at a shooting site by a director of photography, and video data shot using a plurality of cameras is displayed on a plurality of monitors. When performing color adjustment while checking the video, color conversion faithful to the shooting scene can be performed for each video data shot with multiple cameras, and between multiple cameras Video conversion device that can achieve high-accuracy color matching, thereby further improving the efficiency of the video production process, reducing costs, and improving video quality, By providing a filming system of a movie system using this, the above problems are solved.

JP 2012-231459 A

However, the video conversion device described in Patent Document 1 is very expensive, and it is not realistic to prepare a plurality of video conversion devices in accordance with the number of cameras and monitors installed at one shooting site. Therefore, in order to perform color adjustment at the shooting site, it was necessary to make color adjustment after confirming that the monitor was connected to the video conversion device or by connecting the video conversion device to the monitor. .
In addition, photographing devices used for photographing movies and the like including the video conversion device described in Patent Document 1 are generally rented, and color adjustment at the photographing site is not in time, and photographing is finished. Later, there are cases where it is desired to adjust the color of the captured video as the previous stage of proceeding to the editing process.

  The object of the present invention is to solve the above-mentioned problems of the prior art, and can be installed according to the number of cameras and monitors installed, and the effect of color adjustment can be confirmed in real time on any monitor at the shooting site. It is another object of the present invention to provide a video conversion system, a shooting system, and a lookup table generation server capable of color reproduction and color adjustment of a video of a final output device performed at the shooting site even in an editing process after shooting.

  In order to solve the above-mentioned problems, the present invention is a movie system that creates a projection image from camera video data shot by a camera, and is a video conversion system used for a shooting system in which shooting by a camera is performed, The video conversion system includes a main video conversion device, at least one sub video conversion device connected to the main video conversion device, and a controller connected to at least one of the main video conversion device and the sub video conversion device. The controller receives color reproduction information that is set according to the color space of the display device for confirmation so that the color of the final output device, which is the final output of the video, can be confirmed in advance by a different display device. The device acquires camera video data, camera model information, and shooting setting information, respectively, and inputs them in the controller. An information acquisition unit that acquires color reproduction information of a display device for confirmation, camera video data acquired by the information acquisition unit, camera model information and shooting setting information, and color reproduction information of a display device for confirmation to a main video conversion device A sub-data transmission / reception unit that outputs and acquires a color conversion lookup table corresponding to these from the main video conversion device, and a display device for checking camera video data based on the color conversion lookup table acquired by the sub-data transmission / reception unit And a look-up table conversion unit that obtains video data in the color space of the display device for confirmation by converting to the color space of the main video converter, the main video converter from the sub-video converter to the camera video data, camera model information, and shooting settings Information and the color reproduction information of the device for confirmation are obtained, and the corresponding color conversion lookup table is displayed Main data transmission / reception unit to be output to the conversion device, camera video data acquired by the main data transmission / reception unit, camera model information and shooting setting information, and color reproduction lookup table corresponding to these from the color reproduction information of the confirmation device A color conversion lookup table generation unit that generates and outputs to the main data transmission / reception unit, and the lookup table conversion unit of the sub-video conversion device generates the color generated by the color conversion lookup table generation unit of the main video conversion device Provided is a video conversion system which converts camera video data into video data in a color space of a display device for confirmation using a conversion lookup table.

  In addition, the controller receives color adjustment parameters for color adjustment of video data in the color space of the display device for confirmation, and the main data transmission / reception unit of the main video conversion device acquires the color adjustment parameters input in the controller The color conversion lookup table generation unit of the main video conversion device generates the color conversion lookup table again based on the color adjustment parameter, and the sub data transmission / reception unit of the sub video conversion device generates the color conversion lookup table generated again. The look-up table conversion unit of the sub-video conversion device acquires the up-table again, and the color conversion look-up table generation unit of the main video conversion device regenerates the up-table based on the color conversion look-up table generated again based on the color adjustment parameters. Color by converting camera image data to image data in the color space of the display device for confirmation It is preferable to perform an integer.

  The lookup table generator of the main video converter converts the camera video data into video data in the output standard color space, and the main data transmitter / receiver in the main video converter converts the video in the standard color space of the output. The data is output to the sub-video conversion device, and the lookup table conversion unit of the sub-video conversion device uses the color conversion lookup table generated by the color conversion lookup table generation unit of the main video conversion device to convert the main video The color of the display device for confirmation for displaying on the confirmation device the color reproduced in the final output device of the movie system of the video data in the standard color space of the output converted in the color conversion lookup table generation unit of the apparatus It is preferable to convert the video data into a space.

  Also, the controller receives color adjustment parameters for color adjustment of the video data in the color space of the display device for confirmation and the video data in the standard color space of the output, and the main data transmission / reception unit of the main video conversion device The color adjustment parameter input in the controller is acquired, and the color conversion lookup table generation unit of the main video conversion device converts the camera video data again to video data in the output standard color space based on the color adjustment parameter. The sub-data transmission / reception unit of the sub-video conversion device obtains again the video data of the standard color space of the output converted again based on the color adjustment parameter in the color conversion lookup table generation unit, and The up-table conversion unit is a color conversion lookup table generated by the color conversion lookup table generation unit of the main video conversion device. Color that is reproduced by the final output device of the movie system from the standard color space of the output that has been converted again based on the color adjustment parameters in the color conversion lookup table generation unit of the main video conversion device using the table Is preferably converted into video data in the color space of the display device for confirmation for displaying on the confirmation device.

  The camera video data is preferably stored in a video storage device when taken by the camera, and the camera model information and shooting setting information are preferably acquired from the metadata of the camera video data.

  The color reproduction information of the confirmation display device is preferably calculated by calibrating the confirmation display device.

  The final output device is a projector for showing a projection image in a movie system that creates a projection image from a plurality of types of camera video data captured by a plurality of cameras. Connected to each camera or corresponding to each of a plurality of cameras, and connected to a plurality of confirmation display devices or corresponding to each of a plurality of confirmation display devices, The confirmation display device is preferably for confirming the color of the final output device on the photographing side of the movie system.

  The camera is preferably a digital video camera or a digital camera that captures a subject and acquires camera video data.

  The standard color space for output is preferably a color space that does not depend on the output device.

  The standard color space of the output is shown in an output color space assuming an ideal output device having a dynamic range of 10,000: 1 or more, an output color space assuming a standard output device, or a movie system projector. An output color space that assumes a preview of a projection film is preferable.

  The present invention also corresponds to a plurality of cameras, the above-described video conversion system arranged corresponding to each of the plurality of cameras, and at least one sub-video conversion device and main video conversion device of the video conversion system. Connected to the display device for confirmation and the main video conversion device of the video conversion system, and the camera video data captured by a plurality of cameras, or the camera video in the lookup table generation unit of the main video conversion device Provided is a movie system shooting system comprising: a video storage device for storing video data in an output standard color space converted from data; or a portable storage device.

  The video conversion server further includes a video conversion server, and the video conversion server is connected to an editing system including at least one video editing device, and includes camera model information and shooting setting information for each shooting scene of camera video data, and camera video data. Stores the corresponding color adjustment parameters, and generates and edits a color conversion lookup table used by the editing system based on the camera model information, shooting setting information, and color adjustment parameters in response to a request from the editing system. It is preferable to output to the system.

  The present invention also eliminates camera model characteristics, color conversion from the input common color space corresponding to the final output device including color adjustment to the output common color space, and color conversion according to the model characteristics of the display device for confirmation. The video conversion device that can perform color processing of video data and check the color-processed video at the shooting site using the confirmation display device, and the final video data for screening from the raw video data shot by the camera A lookup table generation server connected to a video editing device of an editing system to be produced, which includes color processing parameters describing color processing information of color-processed video data, and information of an output color space of the video editing device A color conversion look-up device based on the data receiving unit receiving the color processing parameters, the color processing parameters received by the data receiving unit, and the output color space information of the video editing device. A color conversion lookup table generation unit that generates a color table and a data transmission unit that transmits the color conversion lookup table to a video editing device, and the color conversion lookup table generation unit is applied to raw video data. Thus, a lookup table generation server is provided that generates a color conversion lookup table that reproduces a color-processed video in a video editing device.

  Further, the color processing parameter is changed for each scene to be photographed, and is preferably associated with a scene number or a time code of a camera corresponding to the scene.

  The data receiving unit obtains still image data of the scene corresponding to the color processing parameter together with the color processing parameter, and the data transmitting unit transmits the still image data when transmitting the color conversion lookup table based on the color processing parameter. Are preferably transmitted together.

  Still image data preferably includes still image data before color conversion and still image data after color conversion based on a color conversion lookup table.

  In addition, when the data receiving unit is accessed from an external client, the data receiving unit requests the client to input a password, and if the input password does not match a preset password, the data receiving unit requests access from the client. It is preferable to block.

  The data receiving unit receives a comment input by the user at the time of shooting or color adjustment corresponding to the color processing parameter, and the data transmitting unit transmits a color conversion lookup table based on the color processing parameter. It is preferable to send a comment corresponding to the color processing parameter.

According to the present invention, the effect of color adjustment can be confirmed in real time by any monitor installed at the shooting site without preparing an expensive video conversion device according to the number of cameras and monitors installed.
In addition, in the editing process after shooting, a color conversion lookup table reflecting the intentions of the user such as the director at the shooting site can be acquired regardless of the time zone or the place, and the video editing device can acquire the raw video data. By applying the color conversion lookup table, it is possible to perform color reproduction and color adjustment of the video of the final output device made at the shooting site.

It is a block diagram which shows typically an example of a structure of the imaging | photography / editing system of the movie containing the imaging | photography system which concerns on the suitable aspect of this invention. It is a block diagram which shows the structure of the video conversion system which concerns on Embodiment 1 of this invention. It is a block diagram which shows the structure of the video conversion system which concerns on Embodiment 2 of this invention. It is a block diagram which shows the structure of the video conversion system which concerns on Embodiment 3 of this invention. It is a block diagram which shows the structure of the video conversion system which concerns on Embodiment 4 of this invention. It is a block diagram which shows the structure of the lookup table production | generation server which concerns on Embodiment 5 of this invention. It is a block diagram which shows an example of the color conversion architecture of the digital movie production workflow specification performed by the post production of a movie system. FIG. 8 is a chromaticity diagram of various color spaces including an input color space of the color conversion architecture shown in FIG. 7.

  A video conversion system, a photographing system, and a lookup table generation server according to the present invention will be described below in detail based on preferred embodiments of preferred embodiments shown in the accompanying drawings.

FIG. 1 is a block diagram schematically showing an example of the configuration of a movie shooting / editing system.
The movie shooting / editing system of FIG. 1 includes video conversion systems 1A and 1B according to Embodiments 1 to 4 of the present invention, a shooting system (production, shooting site) 2 according to a preferred embodiment of the present invention using these, and A lookup table generation server (hereinafter referred to as LUT generation server) 4 according to Embodiment 5 of the present invention used in an editing system (post-production, editing step) 3 is provided.

As shown in FIG. 1, a photographing system 2 according to a preferred embodiment of the present invention includes a camera A11 for photographing, a sub-video conversion device A12 connected to the camera A11, and a monitor connected to the sub-video conversion device A12. (Display device for confirmation) A13, camera B21 for shooting, sub-video conversion device B22 connected to camera B21, monitor B23 connected to sub-video conversion device B22, A main video converter 32 connected to the camera C31, and a monitor C33 connected to the main video converter 32. The main video converter 32 includes a sub video converter C42 and a sub video. A conversion device D52 is connected, a monitor D43 is connected to the sub-video conversion device C42, and a monitor E53 is connected to the sub-video conversion device D52. Furthermore, a camera video storage device 70 is connected to the cameras A11 to C31, and an editing / processing video storage device 71 and a portable storage device 72 are connected to the main video conversion device 32.
Also, the video conversion system 1A and the main video conversion device 32, each of which includes the sub-video conversion device A12, the sub-video conversion device B22, the main video conversion device 32, and the router 61 and the network 62 connected thereto, are respectively connected thereto. A controller 81 is connected to the video conversion system 1B including the sub video conversion device E42 and the sub video conversion device D52.
The imaging system 2 and the editing system 3 are connected through the main video conversion device 32, the captured video storage device 70, the editing information data generation device 72, or the portable storage device 72 via the LUT generation server 4.

  The main video conversion device 32 is connected to the sub video conversion devices A12 and B22 via the router 61 and the network 62, directly connected to the sub video conversion devices C42 and D52, and connected to the controller 81. The video conversion systems 1A and 1B according to the first to fourth embodiments of the present invention are configured.

Cameras A11, B21, and C31 are for capturing a subject and acquiring camera video data (raw video data).
Such a camera may be any camera as long as camera video data can be acquired, but is preferably a digital video camera or a digital camera that can acquire digital video data. In addition, although the imaging system 2 in the illustrated example includes three cameras, it may include four or more cameras.
The camera used in the present invention may be a different manufacturer or a different model, and the present invention exhibits a higher effect if it is a different manufacturer or a different model.
The captured video storage device 70 is connected to the cameras A11 to C31, and camera video data captured by the cameras A11 to C31 is stored.

The sub-video conversion devices A12 and B22 form part of the video conversion system 1A according to Embodiment 1 of the present invention together with the main video conversion device 32, and the sub-video conversion devices A12 and B22 are connected to the cameras A11 and B21. One-to-one (1: 1) correspondence is connected, and monitors A13 and B23 are connected to one-to-one (1: 1) correspondence to sub-picture conversion devices A12 and B22, respectively.
The sub-video conversion devices A12 and B22 respectively convert the camera video data from the cameras A11 and B21 in accordance with the display color spaces of the monitors A13 and B23, and a final output device that becomes a final output of the video, for example, a digital projector Display colors that are reproduced by projectors such as digital projectors and film projectors of the screening system, and colors of screened images that are obtained when converted to the color space of the screening positive film used in film projectors. This is intended to be confirmed by the monitors A13 and B23 which are devices.

The main video conversion device 32 constitutes a part of the video conversion system 1A according to Embodiment 1 of the present invention together with the sub video conversion devices A12 and B22, and the sub video conversion devices C42 and D52 together with the implementation of the present invention. A part of the video conversion system 1B according to the first embodiment is configured.
The main video conversion device 32 is connected to the camera C31 similarly to the sub video conversion devices A12 and B22, and the monitor C33 is connected to the main video conversion device 32 similarly to the sub video conversion devices A12 and B22. .
The main video conversion device 32 converts the camera video data from the camera C31 according to the monitor C33 in the same manner as the sub video conversion devices A12 and B22, and outputs a final output device such as a digital projector or film. Use a display device that is different from the projector in advance to display the colors reproduced by projectors such as digital projectors and film projectors of the screening system, and the colors of the screened images obtained when converted to the color space of the screening positive film used in the projector. This is intended to be confirmed on a certain monitor C33.

  The main video conversion device 32 is connected to the sub video conversion devices A12 and B22 through the router 61 and the network 62 to constitute the video conversion system 1A according to the first embodiment of the present invention. The main video conversion device 32 acquires the model information and shooting setting information of the cameras A11 and B21 from the sub video conversion devices A12 and B22 connected via the router 61 and the network 62, and at the cameras A11 and B21, Each captured camera video data is acquired, and based on the color reproduction information corresponding to the display color space of each of the monitors A13 and B23 obtained by monitor calibration, each of the monitors A13 and B23 A color conversion lookup table (color conversion LUT) corresponding to each of the sub-video conversion devices A12 and B22 is created so that the color of the video displayed on the output device can be confirmed, and sub-video conversion is performed through the router 61 and the network 62. These color conversion LUTs to each of the devices A12 and B12 To output.

Here, the camera model information literally indicates model information such as the manufacturer and type of the camera, and the camera shooting setting information is associated with each shooting scene (time code or file name of the video data). ) Camera white balance setting, gradation, color reproduction mode setting, and the like. The camera model information and shooting setting information may be acquired from the metadata included in the camera video data, or may be input from the controller 81 by a user such as a shooting director.
The color reproduction information of the monitor is information on the display color space of the monitor obtained by performing calibration for each monitor, and is input from the controller 81 by a user such as an imaging director.

  Further, the main video conversion device 32 acquires, for example, model information and shooting setting information of the camera C31 and camera video data shot by the camera C31, and monitors D43, D43 connected to the sub-video conversion devices C42 and D52, respectively. Based on the color reproduction information corresponding to each display color space of E53, each of the monitors D43 and E53 can check the color of the video displayed on the final output device based on the sub-video conversion device C42. , D52, and color conversion LUTs corresponding to the D52 and D52, respectively, and output these color conversion LUTs to the sub-picture conversion devices C42 and D52.

  In addition, the main video conversion device 32 edits and processes the video data that is confirmed and color-adjusted on the monitor A13 to the monitor E53 on the time axis based on the user's instruction, and the scene number or scene corresponding to the shooting scene. An editing information file (XML (Extensible Markup Language) file, EDL (Edit Decision List) file, etc.) describing the contents of editing processing such as the time code of the camera corresponding to is created.

The sub-video conversion devices C42 and D52 are connected to the main video conversion device 32, respectively, and constitute a part of the video conversion system 1B according to Embodiment 1 of the present invention together with the main video conversion device 32. Monitors D43 and E53 are connected to the devices C42 and D52 in a one-to-one (1: 1) correspondence.
The sub-video conversion devices C42 and D52 convert the video data output from the camera C31, color-adjusted in the main video conversion unit 32, and converted into the standard color space of the video output according to the monitors D43 and E53, respectively. The final output device that is the final output of the video, for example, the color reproduced by a projector such as a digital projector or film projector of a screening system, obtained when converted to the color space of a screening positive film used in a digital projector or film projector, This is for allowing the colors of the video to be screened to be confirmed in advance by the monitors D43 and E53, which are display devices different from the projector.

The monitors A13 and B23 are provided in a one-to-one (1: 1) correspondence to the sub-video converters A12 and B22, respectively, and are based on the sub-video converters A12 and B22 (actually by the main video converter 32). This is a display device for displaying the results of color adjustments, and is a monitor for the director of photography to check the color of the video shown on the projector immediately after shooting. The color adjustment of the video at the shooting site When this is performed, the monitor immediately confirms the color of the color-adjusted video.
Further, the monitor C33 is provided in a one-to-one correspondence with the main video conversion device 32, and the monitors D43 and E53 are respectively provided to the sub video conversion devices C42 and D52 connected to the main video conversion device 32, respectively. Similar to the above-described sub-video conversion devices A12 and B22, the display device is a display device for displaying the color adjustment results, and the video imaged by the director of photography immediately on the projector after shooting. This is a monitor for confirming the color of the image immediately after the color adjustment of the image when the color adjustment of the image is performed at the photographing site.
For example, in the case where five or more video conversion devices including a sub video conversion device and a main video conversion device are provided, five or more monitors are provided corresponding to each of the sub video conversion device and the main video conversion device. Is good.
The monitor used in the present invention is not particularly limited as long as it reproduces and displays the color of the video screened by the projector of the screening system, and a conventionally known display device can be used. It should be noted that the monitor used in the present invention may be a different manufacturer or a different model, similar to the above-described camera, and in this case, the present invention can exhibit a higher effect.

The router 61 and the network 62 connect the sub-video conversion devices A12 and B22 and the main video conversion device 32 to each other, and constitute a part of the video conversion system 1A according to Embodiment 1 of the present invention.
The router 61 is a repeater of the network 62 and relays transmission / reception of data between the sub-video conversion devices A12 and B22 and the main video conversion device 32 connected by the network 62. The network 62 is an intranet that is used only at the shooting site. The network 62 includes, for example, a twisted pair cable or an optical fiber, and transmits data transmitted and received from various terminals and routers.
Through the router 61 and the network 62, camera model information and shooting setting information, camera video data, and color reproduction information corresponding to the display color space of the monitor are output from the sub-video converters A12 and B22 to the main video converter 32. The color conversion LUT is output from the main video conversion device 32 to the sub video conversion devices A12 and B22.

The photographed video storage device 70 stores camera video data itself that is raw video data obtained by photographing with the cameras A11, B21, and C31, and includes a hard disk drive (HDD), a memory, and the like.
The edited video storage device 71 is video data that has been color-adjusted and converted into a standard color space for video output in the main video conversion device 32 (or video for display confirmation that has been confirmed on the monitors A13 to E53). Data), camera model information for each shooting scene, shooting setting information and color processing information (color processing parameters described later) such as color adjustment parameters described later, monitor model information, and color reproduction corresponding to the display color space of the monitor Edit information file (XML file or EDL) that describes information and editing processing contents such as a scene number corresponding to each shooting scene of video data edited and processed in the main video conversion device 32 and a camera time code corresponding to the scene File), etc., and is configured by an HDD, a memory, etc., like the above-described photographed video storage device 70. It is.
The portable storage device 72 also includes camera model information, shooting setting information, and color processing information such as color adjustment parameters to be described later, monitor model information, and monitor display output from the main video conversion device 32. The color reproduction information corresponding to the color space and the editing information file are stored, and are configured by a portable HDD, a USB memory, or the like, and can be detached from the photographing system 2 and carried.

The controller 81 is connected to the video conversion systems 1A and 1B, and the sub video conversion devices A12 and B22 and the main video conversion device 32 constituting the video conversion system 1A, and the main video conversion device 32 constituting the video conversion system 1B, The sub-video conversion devices C42 and D52 are respectively operated and constitute a part of the video conversion systems 1A and 1B of the present invention.
In FIG. 1, the controller 81 is connected to the video conversion system 1A. Actually, however, the controller 81 may be connected to the sub video conversion system A12, may be connected to the sub video conversion system B22, or the main video conversion device. 32, or may be connected to the entire video conversion system 1 </ b> A via the router 61 and the network 62. Similarly, the controller 81 may be connected to the sub-video conversion systems C42 and D52 of the video conversion system 1B. Further, the controller 81 may be connected by wire or may be connected wirelessly.

The controller 81 inputs color adjustment parameters for color adjustment when performing color adjustment while confirming the reproduced color of the captured image displayed on the monitor A13 after the imaging director uses the camera A11. The color-adjusted video and / or the analysis thereof, particularly the result of the video color analysis, is displayed on the monitor A13, and each pixel of the color-adjusted video or the result of the color adjustment of the video is analyzed at least as a selected portion. For example, when the result is out of the color space of the digital projector as the final output device, a warning is displayed or a warning is issued.
The controller 81 may be anything as long as it can control the video conversion systems 1A and 1B. For example, a personal computer (PC) connected via the router 61 and the network 62, for example, a notebook PC, a desktop PC, , Ipad (brand name) tablet type PC, etc. can be used.

  The controller 81 adjusts the color of the monitor video displayed on the monitors A13, B23, C33, D43, and E53 for the video conversion systems 1A and 1B. In the controller 81, the monitor obtained in advance by monitor calibration is used. By inputting color reproduction information corresponding to each display color space of A13, B23, C33, D43, and E53, and inputting a change in color adjustment parameter, the colors of the monitor images displayed on these monitors A13 to E53 Adjustments can be made in real time. The controller 81 can also specify the monitor itself to be color-adjusted, and can adjust the color of only the monitor video displayed on the designated monitor, and has confirmed the color adjustment result of the monitor video displayed on the designated monitor. In addition, the video conversion systems 1A and 1B can be operated so that the result of the color adjustment is reflected on all the monitors A13 to E53.

The LUT generation server 4 connected to the editing system 3 may be disconnected from the shooting system 2. For example, after shooting, the camera model information, shooting setting information, and color to be described later are stored in the portable storage device 72 from the portable storage device 72. The adjustment parameter is acquired, and a color conversion LUT used in the editing system 3 is generated and output according to various editing devices of the editing system 3.
The editing system 3 acquires the color conversion LUT from the LUT generation server 4 and performs color conversion on the camera video data acquired in advance from the captured video storage device 70 based on the color conversion LUT, whereby the final output device made at the shooting site. The color reproduction of the video can be performed.

Next, the operation of the movie shooting / editing system including the shooting system 2 according to the preferred embodiment of the present invention will be briefly described. The operations of the video conversion system and the LUT generation server will be described in detail in each embodiment.
Camera video data (raw video data) captured by the cameras A11 to C31 is output to the captured video storage device 70 and output to the video conversion systems 1A and 1B. The video conversion systems 1A and 1B allow the user to adjust the color at the shooting site. The monitors A13 to E53 reproduce the color of the video on the final output device, and the camera model information and shooting setting information. Color adjustment parameters that are adjustment information are output, video data is edited and processed, and an edit information file (such as an XML file or an EDL file) is output.

  The camera model information, shooting setting information, and color adjustment parameters that are color adjustment information by the user are output to the LUT generation server 4 by the portable storage device 72, for example, and the LUT generation server 4 uses the video editing device of the editing system 3. The color conversion LUT is generated on the basis of the information on the color space and is output to the corresponding video editing device of the editing system 3. By color-converting the camera video data from the shot video storage device 70 of the shooting system 2 using the color conversion LUT, the video editing device can reproduce the color of the video of the final output device made at the shooting site.

Note that the camera model information and shooting setting information, color adjustment parameters that are color adjustment information by the user, and the like may be directly output from the video conversion systems 1A and 1B to the LUT generation server without using the portable storage device 72. .
The video conversion systems 1A and 1B store a still image after color conversion corresponding to the above color adjustment parameter or the like, a still image before color conversion, and a still image after color conversion as still image data together with the color adjustment parameter and the like. And may be output to the outside together with the above-described color adjustment parameters, etc. Also, the user at the time of shooting or color adjustment inputs a comment, the input comment is stored together with the above-described color adjustment parameter, and the like. You may output outside with a color adjustment parameter etc.

Embodiment 1
FIG. 2 is a block diagram showing a part of the configuration of the video conversion system 1A according to Embodiment 1 of the present invention. The video conversion system 1A according to Embodiment 1 includes a sub-video conversion device A12 and a main video conversion device 32.
The sub-video conversion device A12 is connected to the camera A11, and the monitor A13 is connected to the sub-video conversion device A12.
The sub-video conversion device A12 includes a sub-main body control unit 14, a lookup table conversion unit (hereinafter referred to as LUT conversion unit) 15, an LUT memory 16, and a sub-data transmission / reception unit 17, and the camera A11 includes the sub-video conversion device A12. The monitor A 13 is connected to the LUT converter 15. The sub-main body control unit 14 also serves as a connection information acquisition unit of the present invention.

The sub main body control unit 14 is connected to the camera A11 and the monitor A13, is connected to the LUT conversion unit 15, and is connected to the sub data transmission / reception unit 17 to control the operation of the sub video conversion device A12. The sub-main body control unit 14 acquires model information and shooting setting information of the camera A11 and camera video data shot by the camera A11, and acquires color reproduction information of the monitor A13 from the controller 81. In addition to outputting to the transmission / reception unit 17, the color conversion LUT is acquired from the sub-data transmission / reception unit and output to the LUT conversion unit 15.
In addition, a controller 81 is connected to the sub main body control unit 14, and the sub main body control unit 14 acquires the color adjustment parameters input by the controller 81 by the imaging supervisor and the like, and through the sub data transmission / reception unit 17, Is output to the main video conversion device 32 via the router 61 and the network 62, and the color conversion LUT generated again by the LUT generation unit 35 of the main video conversion device 32 based on the color adjustment parameters is acquired in the same manner as described above. , Output to the LUT converter 15.

The LUT conversion unit 15 includes an LUT memory 16 that stores the color conversion LUT. In response to an instruction from the sub-body control unit 14, the LUT conversion unit 15 performs color conversion on the camera video data acquired from the camera A11 by the color conversion LUT and outputs the color to the monitor A13. . Further, the LUT conversion unit 15 acquires the color conversion LUT from the sub-body control unit 14 and rewrites the color conversion LUT stored in the LUT memory 16 according to an instruction from the sub-body control unit 14.
The LUT memory 16 is installed in the LUT conversion unit 15, stores the color conversion LUT, provides the color conversion LUT when the LUT conversion unit 15 performs color conversion of the camera video data, and the LUT conversion unit 15 provides the color conversion LUT. The conversion LUT is rewritten.

  The sub data transmission / reception unit 17 is connected to the main data transmission / reception unit 37 of the main video conversion device 32 via the router 61 and the network 62, and is acquired from the sub main body control unit 14 according to an instruction from the sub main body control unit 14. The model information and shooting setting information of A11, camera video data, and color reproduction information of the monitor A13 are output to the main data transmitting / receiving unit 37 of the main video converting device 32, and from the main data transmitting / receiving unit 37 of the main video converting device 32. The color conversion LUT corresponding to the camera A11 and the monitor A13 is acquired.

The main video conversion device 32 is basically one in which the color conversion architecture of AMPAS-IIF shown in FIG. 7 used in the post production of a movie system can be applied to the shooting system 2. The main video conversion device 32 The main body control unit 34, a lookup table generation unit (hereinafter referred to as LUT generation unit) 35, and a main data transmission / reception unit 37 are connected to each other. The camera C31 is connected to the LUT generation unit 35 of the main video conversion device 32. The monitor C33 is connected to the LUT generation unit 35.
The main body control unit 34 is connected to the LUT generation unit 35 and the main data transmission / reception unit 37 and issues an instruction to control the LUT generation unit 35 and the main data transmission / reception unit 37.

The LUT generation unit 35 includes an IDT (Input Device Transform) conversion unit 91, a camera calibration unit 92, an LMT (Look Modification Transform) conversion unit 93, a rendering conversion unit 94, a monitor color space conversion unit 95, and a monitor that are sequentially connected. A color conversion LUT corresponding to the camera and the monitor by acquiring the camera model information and the shooting setting information, the camera image data, and the monitor color reproduction information according to an instruction from the main body control unit 34. In addition, the camera video data obtained from the camera is converted into monitor video data (display device video data for confirmation) for displaying on the monitor the colors reproduced by the digital projector that is the final output device of the movie system. This is converted and output to the monitor.
Further, the LUT generation unit 35 outputs a standard color of output, which will be described later, by performing only conversion to a standard color space and gamma conversion (for example, rec709, sRGB, etc.) on the camera video data according to an instruction from the main body control unit 34. The video data of the space (output standard color space) may be output to the edited and processed video storage device 71 and the portable storage device 72 through the main data transmission / reception unit 37, and further corresponds to the video data of the standard color space of this output. The signal may be directly output to various editing devices of the editing system 3 after performing signal processing or the like. Here, the corresponding signal processing or the like is image conversion based on requests from various editing devices of the editing system 3.

The IDT conversion unit 91, like the AMPAS-IIF color conversion architecture IDT 106 shown in FIG. 7, accepts camera video data (camera color space) captured by the camera as ACES (video data of an input common color space). ).
The camera calibration unit 92 corrects the video data converted into the input color space ACES (video data thereof) by the IDT conversion unit 91 in accordance with the camera model information and shooting setting information.
By doing this, camera video data shot by a plurality of cameras of different manufacturers and models is converted to an input color space ACES (video data) defined as a scene-based color space. If there is, it is converted into video data of the same color.
In this way, even camera image data captured by a plurality of cameras of different manufacturers and models can be converted into image data in the input color space ACES that can be matched with high accuracy.

The LMT conversion unit 93 performs color adjustment based on a user instruction such as shooting supervision by the controller 81 in order to produce an effect that matches the video content, story, and scene atmosphere. The LMT conversion unit 93 acquires the color adjustment parameter acquired by the main data transmission / reception unit 37 according to an instruction from the main body control unit 34, and converts the video data into color-adjusted video data in the input color space ACES. The color space of the adjusted video data is also ACES.
The rendering conversion unit 94 outputs the ACES video, which is designated in advance, as an output target of video content (for movie theaters or TV broadcasts? Is it digital screening or film projection? What is the type of film? Etc.) to perform rendering (editing processing) in accordance with the output standard color space of the target output device independent of the output device. That is, the rendering conversion unit 94 converts the input color space ACES into an output standard color space (DIC: Device Independent Color) independent of the output device. The video data is edited and processed into an output color, and the edited video data of the output standard color space DIC is obtained.

Here, the output standard color space DIC is not particularly limited as long as it is a standard color space that does not depend on the output device. Therefore, the output standard color space DIC is the OCES 102 that is a common color space for the output of the color conversion architecture of the AMPAS-IIF shown in FIG. Also good. Therefore, in this case, the rendering conversion unit 94 may be the RRT conversion unit 104 shown in FIG.
In addition, for example, the rendering conversion unit 94 may be configured by an RDT conversion unit, a conversion unit for film preview for movie films, or the like.
Therefore, the output standard color space (DIC) has reduced the dynamic range of the ideal output device within a range that does not degrade the display quality after color space conversion to the display device for confirmation (confirmation monitor). The color space may be a color space reduced to a dynamic range of 10,000: 1 or more.
The output standard color space (DIC) may be an output color space that assumes a standard output device (standard output monitor) or an output color space that assumes a preview of a projection film to be screened on a movie projector in a movie system. Good.

The monitor color space conversion unit 95 converts the video data in the output standard color space (DIC) into the monitor color space and converts it to match the γ characteristics of the monitor in order to display the video on the monitor. is there.
The monitor calibration unit 96 corrects the video data converted into the monitor color space by the monitor color space conversion unit 95 according to the color reproduction information corresponding to the display color space of the monitor input by the controller 81. is there.
By doing so, even the video displayed on a plurality of monitors of different manufacturers and models can display the same color as the color reproduced by the digital projector that is the final output device of the movie system.
Thus, even images displayed on a plurality of monitors of different manufacturers and models can be matched with high accuracy.

The LUT generation unit 35, in response to an instruction from the main body control unit 34, model information and shooting setting information of the camera A11 obtained through the main data transmission / reception unit 37, camera video data shot by the camera A11, and color reproduction information of the monitor A13. Is obtained, the color conversion LUT for converting the camera video data captured by the camera A11 into the monitor video data for displaying on the monitor A13 the color reproduced by the digital projector that is the final output device of the movie system. Is output to the sub-picture conversion device A12 through the main data transmission / reception unit 37. Similarly, when the LUT generation unit 35 acquires the color adjustment parameter of the controller 81 connected to the sub-picture conversion device A12, the color conversion LUT reflecting the color adjustment parameter is instructed by the main body control unit 34. Is output to the sub-picture conversion device A12 through the main data transmission / reception unit 37.
In addition, the LUT generation unit 35 shoots with the camera C31 when the camera video data captured by the camera C31 directly connected to the main video conversion device 32 is output to the monitor C33 according to an instruction from the main body control unit 34. The monitor video data for displaying on the monitor C33 the color reproduced by the digital projector that is the final output device of the movie system is output to the monitor C33.

The main data transmission / reception unit 37 receives an instruction from the main body control unit 34, and from the sub-data transmission / reception unit 17 of the sub-picture conversion device A12 through the router 61 and the network 62, the model information and shooting setting information of the camera A11, and the camera A11. The camera image data photographed in step S1 and the color reproduction information of the monitor A13 are acquired and output to the LUT generation unit 35 to acquire the color conversion LUT corresponding to the camera A11 and the monitor A13. The main data transmission / reception unit 37 outputs the color conversion LUT to the sub data transmission / reception unit 17 of the sub video conversion apparatus A12 through the router 61 and the network 62.
The video conversion system 1A according to Embodiment 1 of the present invention is basically configured as described above.

Next, the basic operation of the video conversion system 1A according to Embodiment 1 of the present invention will be briefly described.
When the camera A11 and the monitor A13 are connected, the sub-picture conversion device A12 is connected to the camera body A11 by the sub-main body control unit 14, the camera A11 model information and shooting setting information, the camera video data shot by the camera A11, and the monitor A13. Each of the color reproduction information is acquired, and the sub-body control unit 14 outputs the information to the sub-data transmission / reception unit 17, and these information is transmitted through the sub-data transmission / reception unit 17, the router 61, and the network 62. To 32.

  The main data transmission / reception unit 37 of the main video conversion device 32 is photographed by the camera A11 from the sub data transmission / reception unit 17 of the sub video conversion device A12 through the router 61 and the network 62, and the camera A11 model information and shooting setting information. Camera image data and color reproduction information of the monitor A13 are acquired.

The IDT conversion unit 91 converts camera video data captured by the camera A11 into ACES video data that is an input common color space, and the camera calibration unit 92 acquires model information and shooting setting information of the camera A11. Then, the video data converted into the video data of the input color space ACES by the IDT conversion unit 91 is corrected according to the model information and shooting setting information of the camera A11.
As will be described in detail later, the LMT conversion unit 93 converts the video data into color-adjusted video data in the input color space ACES, and the rendering conversion unit 94 edits the video data in the input color space ACES into an output color. Thus, the edited video data of the output standard color space DIC is used.

The monitor color space conversion unit 95 converts the video data in the output standard color space DIC into the monitor color space and converts it to match the γ characteristics of the monitor to display the video on the monitor, and monitor calibration. The unit 96 acquires the color reproduction information of the monitor A13, corrects the video data converted into the monitor color space by the monitor color space conversion unit 95 according to the color reproduction information of the monitor A13, and outputs the final output of the movie system. The color reproduced by the digital projector as the device is assumed to be monitor video data for display on the monitor A13.
Based on the instruction of the main body control unit 34, the LUT generation unit 35 is based on the model information and shooting setting information of the camera A11, the camera video data shot by the camera A11, and the color reproduction information of the monitor A13. In addition, a color conversion LUT for converting camera video data captured by the camera A11 into monitor video data corresponding to the monitor A13 and converting the camera video data of the camera A11 into monitor video data corresponding to the monitor A13 is provided. Generate.

The color conversion LUT generated by the LUT generation unit 35 is output to the main data transmission / reception unit 37 in accordance with an instruction from the main body control unit 34, and is output to the sub data transmission / reception unit 17 of the sub video conversion apparatus A12 through the router 61 and the network 62. And stored in the LUT memory 16 of the LUT conversion unit 15 via the sub-body control unit 14.
The sub-video conversion device A12 uses the color conversion LUT generated by the LUT generation unit 35 of the main video conversion device 32 to perform color conversion of the camera video data from the camera A11 in the LUT conversion unit 15, thereby The color reproduced by the digital projector as the final output device can be displayed on the monitor A13.
The above is the basic operation of the video conversion system 1A according to Embodiment 1 of the present invention.

Next, the color adjustment operation of the video conversion system 1A according to Embodiment 1 of the present invention will be briefly described. The description of the same operation as the basic operation is omitted.
First, camera video data photographed by the camera A11 is color-converted by the color conversion LUT output from the main video conversion device 32 in the LMT conversion unit 15 of the sub-video conversion device A12, and is converted into monitor video data to be the monitor A13. The color image reproduced by the digital projector which is the final output device of the movie system is displayed on the monitor A13.

A user such as an imaging director operates the controller 81 while confirming the image on the monitor A13, and inputs color adjustment parameters for color adjustment by the LMT conversion unit 93. When the color adjustment parameter is input by the controller 81, the sub-body control unit 14 of the sub-video conversion device A 12 receives the color adjustment parameter input by the controller 81 from the sub-data transmission / reception unit 17 through the router 61 and the network 62. The data is output to the main video data transmission unit 37 of the conversion device 32.
The main video conversion device 37 outputs the color adjustment parameter input by the controller 81 to the LMT conversion unit 93 of the LUT generation unit 35 based on an instruction from the main body control unit 34, and the LUT generation unit 35 outputs the color adjustment parameter. Considering this, the color conversion LUT used in the LUT conversion unit 15 of the sub-picture conversion apparatus A is regenerated.
The new color conversion LUT generated in consideration of the color adjustment parameter in the LUT generation unit 35 is transferred from the main data transmission / reception unit 37 to the sub data transmission / reception unit 17 of the sub main body control unit A12 based on an instruction from the main main body control unit 34. Is output and stored in the LUT memory 16 of the LUT converter 15.

The LUT conversion unit 15 of the sub-video conversion device A12 converts the camera video data from the camera A into monitor video data based on the new color conversion LUT stored in the LUT memory 16, and outputs the monitor video data to the monitor A13.
The above is the color adjustment operation of the video conversion system 1A according to Embodiment 1 of the present invention.
Note that the LUT generation unit 35 of the main video conversion device 32 performs color conversion for converting the camera video data from the camera A11 into monitor video data for display on the monitor A13 based on the color adjustment parameter input by the controller 81. At the same time as generating the LUT, the camera video data from the camera C31 may be directly converted into monitor video data corresponding to the monitor C33 based on the input color adjustment parameters and output to the monitor C33 in real time. After the user confirms the monitor image after color adjustment displayed on the monitor A13, the color adjustment parameter is reflected on the monitor image data displayed on the monitor C33 in accordance with an instruction from the controller 81 by the user and displayed on the monitor C33. Also good.

  As described above, according to the video conversion system according to the first embodiment, the video conversion system can be constructed at a low cost in accordance with the number of cameras and monitors installed in the shooting site. In addition, the effect of color adjustment by the director of photography can be confirmed in real time.

Embodiment 2
FIG. 3 is a block diagram showing a part of the configuration of the video conversion system 1A according to Embodiment 2 of the present invention. Note that the description of the same configuration as that of Embodiment 1 is omitted.
In addition to the configuration of the first embodiment, the video conversion system 1A according to the second embodiment further includes a sub-video conversion device B22 connected to the camera B21 and a monitor B23 connected to the sub-video conversion device B22. Prepare. The sub-video conversion device B22 is connected to the main video conversion device 32 through the router 61 and the network 62, similarly to the sub-video conversion device A12.

Next, the basic operation of the second embodiment will be described. Similar to the above, the description of the points common to the basic operation of the first embodiment will be omitted.
Similarly to the sub-video conversion device A12, the sub-video conversion device B22 also outputs the camera B21 model information and shooting setting information, the camera video data from the camera B21, and the color reproduction information of the monitor B23 to the main video conversion device 32. The LUT generation unit 35 generates a color conversion LUT for the sub video conversion device B 22, outputs the color conversion LUT to the sub video conversion device B 22, and stores it in the LUT memory 26 of the LUT conversion unit 25. The sub-video conversion device B22 performs color conversion on the camera video data from the camera B21 based on the color conversion LUT stored in the LUT memory 26 in the LUT conversion unit 25, and outputs the monitor video data to the monitor B23. In this way, the monitor B23 can display a color image reproduced by a digital projector which is the final output device of the movie system.
The above is the basic operation of the video conversion system 1A according to Embodiment 2 of the present invention.

Next, the color adjustment operation of the second embodiment will be described. Note that, as described above, the description of the points common to the color adjustment operation of the first embodiment is omitted.
For example, first, camera video data captured by the camera A11 is color-converted by the color conversion LUT output from the main video conversion device 32 in the LMT conversion unit 15 of the sub-video conversion device A12, and is converted into monitor video data. A color image that is output to the monitor A13 and reproduced by a digital projector that is the final output device of the movie system is displayed on the monitor A13. Similarly, the monitor B23 and the monitor C33 also display a color image reproduced by a digital projector that is the final output device of the movie system.

For example, a user such as an imaging director operates the controller 81 while confirming the video on the monitor A13, and inputs color adjustment parameters for color adjustment by the LMT conversion unit 93. When the color adjustment parameter is input by the controller 81, the sub-body control unit 14 of the sub-video conversion device A 12 receives the color adjustment parameter input by the controller 81 from the sub-data transmission / reception unit 17 through the router 61 and the network 62. The data is output to the main video data transmission unit 37 of the conversion device 32.
The main video conversion device 32 outputs the color adjustment parameter input by the controller 81 to the LMT conversion unit 93 of the LUT generation unit 35 based on an instruction from the main body control unit 34, and the LUT generation unit 35 outputs the color adjustment parameter. Considering this, the color conversion LUT used in the LUT conversion unit 15 of the sub-video conversion device A12 and the LUT conversion unit 25 of the sub-video conversion device B22 is regenerated.

  The new color conversion LUT generated in consideration of the color adjustment parameters in the LUT generation unit 35 is sent from the main data transmission / reception unit 37 to the sub-main body control unit A12 and the sub-main body control unit B22 based on an instruction from the main main body control unit 34. These are output and stored in the LUT memory 16 of the LUT converter 15 and the LUT memory 26 of the LUT converter 25, respectively.

The LUT conversion unit 15 of the sub-video conversion device A12 converts the camera video data from the camera A11 into monitor video data based on the new color conversion LUT stored in the LUT memory 16, and outputs the monitor video data to the monitor A13. Similarly, the LUT conversion unit 25 of the sub-video conversion device B22 converts the camera video data of the camera B21 into monitor video data based on the new color conversion LUT stored in the LUT memory 26, and outputs it to the monitor B23. .
The above is the color adjustment operation of the video conversion system 1A according to Embodiment 2 of the present invention.
In the second embodiment, the number of sub-video conversion devices connected to the main video conversion device 32 through the router 61 and the network 62 is not particularly limited, and increases to a number that the main video conversion device 32 can practically handle. Further, the controller 81 may be installed not only in the sub-video conversion device A12 but also in another sub-video conversion device, or may be installed in the main video conversion device 32.
In the above description, when the color adjustment parameter is input in the controller 81, the color adjustment is reflected in real time on all the monitors connected to the sub-video conversion devices A12 and B22 and the main video conversion device 32. However, as in the first embodiment, after the user confirms the influence of the color adjustment on the video displayed on the monitor A13, the controller 81 may be instructed to reflect the color adjustment on all the monitors.
As described above, the video conversion system according to the second embodiment can obtain the same effects as those of the first embodiment.

Embodiment 3
FIG. 4 is a block diagram showing a part of the configuration of the video conversion system 1B according to Embodiment 3 of the present invention. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The video conversion system 1B according to Embodiment 3 includes sub-video conversion devices C42 and D52 that are directly connected to the main video conversion device 32. The sub-video conversion device C42 includes a monitor D43 and a sub-video conversion device D52. Are connected to a monitor E53.
Further, the controller 81 is directly connected to the main body control unit 34 of the main video conversion device 32.
Similar to the sub-picture conversion devices A12 and B22, the sub-picture conversion devices C42 and D52 include LUT conversion units 45 and 55, respectively. The LUT conversion units 45 and 55 each include an LUT memory 46 that stores the respective color conversion LUTs, 56 respectively. The monitors D43 and E53 are the same as the monitors A13 to C33, although the display color spaces are different and the color reproduction information is different.

Next, the basic operation of the video conversion system 1B according to Embodiment 3 of the present invention will be described.
Based on an instruction from the main body control unit 34, the main video conversion device 32 performs the model information and shooting setting information of the camera C31, the camera video data shot by the camera C31, the color reproduction information of the monitor C33, and the sub image information. The color reproduction information of the monitor D43 connected to the video conversion device C42 and the color reproduction information of the monitor E53 connected to the sub-video conversion device D52 are respectively acquired.

  Based on these pieces of information, the main video conversion device 32 generates color conversion LUTs for the sub video conversion devices C42 and D52 in the LUT generation unit 35, and outputs these color conversion LUTs to the sub video conversion devices C42 and D52, respectively. To do. Here, the video data output from the main video conversion device 32 to the sub-video conversion devices C42 and D52 is, for example, video data in the output standard color space DIC, and is generated and output in the main video conversion device 32. These color conversion LUTs display the video data of the output standard color space DIC in the sub-video conversion devices C42 and D52 as the video of the color reproduced by the digital projector which is the final output device of the movie system on the monitors D43 and E53. It may be a color conversion LUT that converts the monitor image data into the monitor image data. These color conversion LUTs are output from the main video conversion device 32 to the LUT conversion units 45 and 55 and stored in the LUT memories 46 and 56 of the LUT conversion units 45 and 55, respectively.

The sub-video conversion devices C42 and 52 obtain the video data of the output standard color space DIC from the main video conversion device 32, and based on the color conversion LUT stored in the LUT memories 46 and 56 in the LUT conversion units 45 and 55, respectively. Color conversion is performed to generate monitor video data, and these monitor video data are output to the monitors D43 and E53, respectively. In this way, the monitors D43 and E53 can display the color image reproduced by the digital projector which is the final output device of the movie system.
The above is the basic operation of the video conversion system 1B according to Embodiment 3 of the present invention.

Next, the color adjustment operation of the third embodiment will be described. Note that, as described above, the description of the points common to the color adjustment operation of the first embodiment is omitted.
First, the camera video data photographed by the camera C31 is color-converted by the LMT generator 35 of the main video conversion device 32, converted into monitor video data and output to the monitor C33, and is the final output device of the movie system. The color image reproduced by the projector is displayed on the monitor C33.
Further, the camera video data captured by the camera C31 is converted into video data in the output standard color space DIC in the LMT generation unit 35 according to an instruction from the main body control unit 34, and the sub video conversion devices C42 and D52 are transmitted through the main data transmission / reception unit 37. Are also respectively converted by the LUT converters 45 and 55 of the sub-picture converters C42 and D52, and reproduced by the digital projector which is the final output device of the movie system on each of the monitors D53 and C23. Color images are displayed.

  Next, a user such as an imaging director operates the controller 81 while confirming an image on the monitor D53, for example, and inputs color adjustment parameters for color adjustment by the LMT conversion unit 93. When the color adjustment parameter is input by the controller 81, the main video conversion device 32 outputs the color adjustment parameter input by the controller 81 to the LMT conversion unit 93 of the LUT generation unit 35 based on an instruction from the main body control unit 34. The LUT generation unit 35 newly generates video data of the output standard color space DIC in consideration of the color adjustment parameter.

  The video data of the output standard color space DIC newly generated in consideration of the color adjustment parameters in the LUT generation unit 35 is sub-main body control units C42 and D52 from the main data transmission / reception unit 37 based on an instruction from the main main body control unit 34. Are output respectively.

The LUT converters 45 and 55 of the sub-video converters C42 and D52 convert the newly generated video data of the output standard color space DIC into monitor video data based on the color conversion LUT stored in the LUT memories 46 and 56, respectively. Converted and output to the monitors D43 and E53, respectively.
The above is the color adjustment operation of the video conversion system 1A according to Embodiment 2 of the present invention.
Further, in the above description, when the color adjustment parameter is input in the controller 81, the color adjustment is reflected in real time on all the monitors connected to the sub-video conversion devices C42 and D52 and the main video conversion device 32. However, as in the first and second embodiments, after the user confirms the influence of the color adjustment on the video displayed on the monitor C33, the controller 81 may be instructed to reflect the color adjustment on all monitors.
As described above, the video conversion system according to the third embodiment can obtain the same effects as those of the first and second embodiments.

Embodiment 4
FIG. 5 is a block diagram showing a photographing / editing system including video conversion systems 1A and 1B according to Embodiment 4 of the present invention. Note that the description of the same configuration as that of Embodiment 1 is omitted.
The video conversion systems 1A and 1B according to the fourth embodiment include a portable storage device 72. The portable storage device 72 is connected to the LUT generation server 4 during or after shooting, and the LUT generation server 4 is These are connected to various editing devices related to the editing system 3.
The portable storage device 72 is a USB memory, an external HDD, or the like, and can store a relatively large amount of data. The portable storage device 72 stores camera model information, shooting setting information for each shooting scene, color adjustment parameters for color adjustment of video data, an editing information file, and the like according to instructions from the main video conversion device 32.

  Further, the LUT generation server 4 acquires camera model information, shooting setting information for each shooting scene, color adjustment parameters for adjusting the color of video data, an editing information file, and the like from the portable storage device 72 and relates to the editing system 3. A color conversion LUT is generated based on requests from various editing devices, and is output to the editing system 3 together with an editing information file and the like. The editing system 3 acquires a color conversion LUT, an editing information file, and the like from the LUT generation server 4 and acquires camera video data from the captured video storage device 70 in advance, for example, for each shooting scene based on the color conversion LUT. Perform color conversion of video data. The editing information file may be directly output from the video conversion systems 1A and 1B of the photographing system 2 to the editing system 3.

Next, the operation of the video conversion systems 1A and 1B according to Embodiment 4 of the present invention will be described.
The main video conversion device 32 receives camera model information, shooting setting information for each shooting scene, color adjustment parameters for adjusting color of video data, an editing information file, and the like from the main data transmission / reception unit 37 in response to an instruction from the main body control unit 34. Is output to the portable storage device 72. The camera model information and the shooting setting information for each shooting scene are information on the camera from which the camera video data was shot. The camera video data may have been shot by the camera C31, and the camera A11 (not shown). , B21 or the like may be used.
The portable storage device 72 is connected to the LUT generation server 4 and outputs to the LUT generation server 4 camera model information, shooting setting information for each shooting scene, and color adjustment parameters for color adjustment of video data.
The LUT generation server 4 generates a color conversion LUT based on camera model information, shooting setting information for each shooting scene, color adjustment parameters for color adjustment of video data, and a request from the editing system 3, and the editing system. Output to 3. The editing system 3 performs color conversion on the camera video data acquired in advance from the captured video storage device 70 based on the color conversion LUT, reproduces the color of the video of the final output device at the shooting site, and reproduces the video data that has undergone color reproduction. Various edits are made to.

  As described above, according to the photographing / editing system including the video conversion systems 1A and 1B according to the fourth embodiment, the color adjustment and color conversion at the photographing site can be reproduced in the editing process after the photographing is completed. The color reproduction and color adjustment after shooting can be greatly reduced, and the editing work can be made more efficient.

Embodiment 5
FIG. 6 is a block diagram showing a configuration of the LUT generation server 4 according to the fifth embodiment of the present invention.
As illustrated in FIG. 6, the LUT generation server 4 includes a data reception unit 131, an LUT generation unit 132 connected to the data reception unit 131, a data reception unit 131, and a data transmission unit 133 connected to the LUT generation unit 132. And an internal memory 134 connected to each of the data reception unit 131, the LUT generation unit 132, and the data transmission unit 133. In addition, a control unit 135 connected to each of the data reception unit 131, the LUT generation unit 132, the data transmission unit 133, and the internal memory 134 is provided.

The data receiving unit 131 acquires color processing parameters, which are color processing information including the camera model information, shooting setting information, and color adjustment parameters for color adjustment of video data, from the video conversion systems 1A and 1B. In addition, in response to an instruction to generate a color conversion LUT from the editing system 3, information on the output color space of the video editing device constituting the editing system 3 is acquired from the editing system 3.
The LUT generation unit 132 has the same configuration as the LUT generation unit 35 of the main video conversion device 32 in the video conversion systems 1A and 1B, and is based on the color processing parameters and the information on the output color space of the video editing device described above. A color conversion LUT is generated.

The data transmission unit 133 outputs the generated color conversion LUT to the video editing device of the editing system 3 that has instructed the generation of the color conversion LUT.
The internal memory 134 stores received data including color processing parameters received by the data receiving unit 131 and information on the output color space of the video editing device, and a color conversion LUT generated by the LUT generating unit.

  The control unit 135 controls each of the data reception unit 131, the LUT generation unit 132, the data transmission unit 133, and the internal memory 134. For example, the input / output of data in each unit, the external in the data reception unit 131 and the data transmission unit 133, Data transmission / reception, and data input / output in the internal memory 134 are controlled.

Next, the operation of the LUT generation server 4 according to the fifth embodiment will be described.
The LUT generation server 4 acquires color processing parameters from the video conversion systems 1A and 1B in the data reception unit 131 based on an instruction from the control unit 135, and receives a color conversion LUT generation request from the editing system 3, Information on the output color space of the video editing device of the editing system 3 is acquired from the editing system 3. The color processing parameters acquired by the data receiving unit 131 and the information on the output color space of the video editing device are output to the LUT generating unit 132 and the internal memory 134, respectively.

The LUT generation unit 132 generates a color conversion LUT based on the color processing parameters output from the data reception unit 131 or the internal memory 134 and information on the output color space of the video editing device, according to an instruction from the control unit 135. The generated color conversion LUT is used to convert camera video data into video data in which color adjustment is reflected and color reproduction of the video of the final output device is performed in the video editing device of the photographing system 2. The generated color conversion LUT is output to the data transmission unit 133 according to an instruction from the control unit 135 and stored in the internal memory 134.
In response to an instruction from the control unit 135, the data transmission unit 133 acquires the color conversion LUT generated by the LUT generation unit 132, and sends the color conversion LUT to the video editing device of the editing system 3 that has issued the color conversion LUT generation request. Output.

  As described above, according to the photographing / editing system including the LUT generation server 4 according to the fifth embodiment, it is possible to reproduce the color adjustment and color conversion at the photographing site in the editing process after the photographing. Subsequent color reproduction, color adjustment, etc. can be greatly reduced, and editing work can be made more efficient.

  In the LUT generation server 4 according to the fifth embodiment, the internal memory 134 stores a plurality of the above-described color processing parameters in the photographing system 2 and stores a plurality of pieces of information on output color spaces of various video editing devices constituting the editing system 3. In addition, the control unit 135 manages a plurality of color processing parameters and information on a plurality of output color spaces stored in the internal memory 134 as described above, and the control unit 13 stores the information in the LUT generation server 4. A plurality of color conversion LUTs may be generated and output by combining them according to instructions from the video editing device of the connected editing system 3.

Further, in the LUT generation server 4 of the fifth embodiment, as described above, information on a plurality of output color spaces corresponding to various video editing devices of the editing system 3 that is an output destination is stored in the internal memory 134 together with the color processing parameters described above. The output color space information may be specified through the controller 135 by a controller (not shown).
When the output color space information is specified by a controller (not shown), the color conversion LUT is based on the color processing parameters and the specified output color space information in the same manner as when the output color space information is acquired. It is generated and output to the video editing device of the editing system 3.
This is effective when the video editing device of the editing system 3 tries color conversion using a plurality of color conversion LUTs as well as the color conversion LUT corresponding to the shooting scene.

In the LUT generation server 4 according to the fifth embodiment, the color processing parameters acquired from the video conversion systems 1A and 1B are obtained from the input common color space corresponding to the final output device including removal of camera model characteristics and color adjustment. Color processing information of video data consisting of color conversion to the output common color space and color conversion according to the model characteristics of the display device for confirmation. As described above, camera model information and shooting setting information for each shooting scene And color adjustment parameters for adjusting the color of the video data.
In the LUT generation server 4 according to the fifth embodiment, the color processing parameters are changed for each shooting scene, and are stored in association with the scene number of the editing information file and the time code of the camera corresponding to the scene. It may be managed.
Therefore, the color conversion LUT generated in the LUT generation server 4 is generated corresponding to the scene number and the time code of the camera corresponding to the scene, and is edited together with the editing information file in the video editing device of the editing system 3. Appropriate color reproduction can be performed by applying a corresponding color conversion LUT to raw video data.

Further, when the LUT generation server 4 of the fifth embodiment receives the color processing parameters from the video conversion systems 1A and 1B in the data receiving unit 131, the still image data of the shooting scene associated with the color processing parameters (that is, the image processing systems 1A and 1B). , Still image data of the corresponding shooting scene) is acquired, stored in the internal memory 134 together with the color processing parameters or the color conversion LUT generated by the color processing parameters, and edited together with the color conversion LUT from the data transmission unit 133 You may output to the video editing apparatus of the system 3.
In addition, the still image data of the above-described shooting scene received together with the color processing parameter in the data receiving unit 131 and output together with the color conversion LUT is only the still image data after color adjustment in the video conversion systems 1A and 1B. There may be two types of still image data: still image data before color adjustment and still image data after color adjustment.
The user can check the color-converted still image in the video editing device of the editing system 3 by reflecting the color conversion LUT corresponding to the shooting scene before color conversion of the raw video data. By comparing the still image before color adjustment with the still image after color adjustment, the effect of color conversion by the color conversion LUT can be verified.

Further, when the LUT generation server 4 according to the fifth embodiment receives the color processing parameters from the video conversion systems 1A and 1B in the data receiving unit 131, the LUT generation server 4 is input at the time of shooting the shooting scene associated with the color processing parameters. The comment is acquired and stored in the internal memory 134 together with the color processing parameter or the color conversion LUT generated by the color processing parameter, and is output from the data transmission unit 133 to the video editing device of the editing system 3 together with the color conversion LUT. May be.
In the video editing device of the editing system 3, by confirming a comment at the time of shooting, it is possible to grasp the director's shooting intention for each scene.

Further, the LUT generation server 4 according to the fifth embodiment may perform password authentication when connected from the outside.
For example, when the LUT generation server 4 is connected to the video conversion systems 1A and 1B which are external clients, the data reception unit 131 passwords the video conversion systems 1A and 1B through the data transmission unit 133 according to an instruction from the control unit 135. Output the input request.

The data receiving unit 131 receives passwords from the video conversion systems 1A and 1B, and performs password authentication based on instructions from the control unit 135. Specifically, the data receiving unit 131 acquires the password recorded in the internal memory 134 through the control unit 135, and determines whether the input password matches or does not match.
When the input password matches the recorded password, the data receiving unit 131 issues a color processing parameter output instruction to the video conversion systems 1A and 1B through the data transmission unit 133, and the input password is recorded. If the password does not match, the data transmission unit 133 notifies the video conversion systems 1A and 1B of the password mismatch, and the connection between the video conversion systems 1A and 1B and the LUT generation server 4 is cut off.

If the input password matches the recorded password, the data receiving unit 131 receives color processing parameters from the video conversion systems 1A and 1B based on an instruction from the control unit 135.
The same applies to the case where the output color space information of the video editing device is acquired from the video editing device of the editing system 3. That is, when a request for generating a color conversion LUT is received, a password input is requested to the video editing device, and when the password matches, information on the output color space of the video editing device is acquired, and the password does not match Notifies the mismatch of the password, and cuts off the connection between the video editing device and the LUT generation server 4.
By performing password authentication as described above, acquisition of the color conversion LUT by an unauthorized user can be prevented.

  Since the LUT generation server 4 according to the fifth embodiment includes the LUT generation unit 132 similarly to the main video conversion device 32 of the video conversion systems 1A and 1B of the present invention, a confirmation display device (not shown) is connected, By acquiring camera video data from a video storage device such as the photographed video storage device 70, color adjustment can be performed by a controller (not shown) as in the video conversion systems 1A and 1B of the present invention. Further, as described above, the LUT generation server 4 according to the fifth embodiment includes the LUT generation unit 132 similarly to the main video conversion device 32 of the video conversion systems 1A and 1B of the present invention. All possible actions can be performed.

  As described above, the video conversion system, the photographing system, and the LUT generation server of the present invention have been described in detail. However, the present invention is not limited to the above embodiment, and various improvements can be made without departing from the gist of the present invention. And changes may be made.

  1A, 1B video conversion system, 2 shooting system, 3 editing system, 4 lookup table generation server (LUT generation server), 11 camera A, 12 sub-video conversion device A, 13 monitor A, 14 sub-body control unit, 15 look Up table conversion unit, 16 LUT memory, 17 Sub data transmission / reception unit, 21 Camera B, 22 Sub video conversion device B, 23 Monitor B, 31 Camera C, 32 Main video conversion device, 33 Monitor C, 34 Main body control unit, 35 Look-up table generation unit (LUT generation unit), 37 Main data transmission / reception unit, 42 Sub-image conversion device C, 43 Monitor D, 52 Sub-image conversion device D, 53 Monitor E, 61 Router, 62 Network, 70 Shooting image storage Device, 71 editing and processing video storage device, 7 2 portable storage device, 81 controller, 91 IDT conversion unit, 92 camera calibration unit, 93 LMT conversion unit, 94 rendering conversion unit, 95 monitor / color space conversion unit, 96 monitor calibration unit, 100 input color space ACES (Academy Color Encoding Specification (102), Output Color Space OCES (Output Color Encoding Specification), 104 Common RTR (Reference Rendering Transform), 106 Input Device Transform (IDT), 108 Output Device Transform ODT (Output Device Transform), 110 Digital camera, 112 digital projector, 114 computer graphics, 116 APD (AMPAS Printing Density), 118 ADX, 120 UB conversion / inverse conversion, 122 film scanner, 124 film recorder, 126 internal negative, 128 optical print, 130 film projector, 131 data receiving unit, 132 LUT generation unit, 133 data transmission unit, 134 internal memory, 135 control unit.

Claims (18)

A movie system that creates a projection image from camera video data shot by a camera, and is a video conversion system used for a shooting system in which shooting by the camera is performed,
The video conversion system is connected to a main video conversion device, at least one sub video conversion device interconnected with the main video conversion device, and at least one of the main video conversion device and the sub video conversion device. A controller,
The controller receives color reproduction information set according to the color space of the display device for confirmation for confirming the color of the final output device that is the final output of the video with a different display device in advance,
The sub-video converter is
An information acquisition unit that acquires the camera video data and the camera model information and shooting setting information, respectively, and acquires the color reproduction information of the display device for confirmation input in the controller;
The camera image data acquired by the information acquisition unit, the model information and shooting setting information of the camera, and the color reproduction information of the confirmation display device are output to the main image conversion device, and these are output from the main image conversion device. A sub-data transmission / reception unit for obtaining a color conversion lookup table corresponding to
A lookup table for converting the camera video data into the color space of the confirmation display device based on the color conversion lookup table acquired by the sub-data transmission / reception unit to obtain the video data of the color space of the confirmation display device A conversion unit,
The main video converter is
The camera video data, the camera model information and shooting setting information, and the color reproduction information of the confirmation device are acquired from the sub-video conversion device, and the color conversion lookup table corresponding to these is obtained as the sub-video conversion device. A main data transmitter / receiver to output to
Generating the color conversion lookup table corresponding to the camera image data acquired by the main data transmitting / receiving unit, the model information and shooting setting information of the camera, and the color reproduction information of the confirmation device; A color conversion lookup table generation unit for outputting to the transmission / reception unit;
The lookup table conversion unit of the sub-video conversion device uses the color conversion lookup table generated by the color conversion lookup table generation unit of the main video conversion device to display the camera video data for the confirmation A video conversion system that converts video data in a device color space. In the controller, a color adjustment parameter for performing color adjustment of video data in the color space of the display device for confirmation is input,
The main data transmission / reception unit of the main video conversion device acquires the color adjustment parameter input in the controller,
The color conversion lookup table generation unit of the main video conversion device generates the color conversion lookup table again based on the color adjustment parameter,
The sub-data transmission / reception unit of the sub-video conversion apparatus acquires the color conversion lookup table generated again,
The lookup table conversion unit of the sub-video conversion device is based on the color conversion lookup table generated again based on the color adjustment parameter in the color conversion lookup table generation unit of the main video conversion device. The video conversion system according to claim 1, wherein color adjustment is performed by converting camera video data into video data in a color space of the display device for confirmation. The lookup table generation unit of the main video conversion device converts the camera video data into video data of an output standard color space,
The main data transmitting / receiving unit of the main video conversion device outputs video data of the standard color space of the output to the sub-video conversion device,
The lookup table conversion unit of the sub-video conversion device uses the color conversion lookup table generated in the color conversion lookup table generation unit of the main video conversion device to use the color of the main video conversion device. The color of the confirmation display device for displaying, on the confirmation device, the color reproduced by the final output device of the movie system of the video data in the standard color space of the output converted by the conversion lookup table generation unit The video conversion system according to claim 1, wherein the video conversion system converts the video data into spatial video data. The controller receives color adjustment parameters for color adjustment of video data in the color space of the display device for confirmation and video data in the standard color space of the output, and the main data of the main video conversion device The transmission / reception unit acquires the color adjustment parameter input in the controller,
The color conversion lookup table generation unit of the main video conversion device converts the camera video data again into video data of the standard color space of the output based on the color adjustment parameter,
The sub-data transmission / reception unit of the sub-video conversion device acquires again the video data of the standard color space of the output converted again based on the color adjustment parameter in the color conversion lookup table generation unit,
The lookup table conversion unit of the sub-video conversion device uses the color conversion lookup table generated in the color conversion lookup table generation unit of the main video conversion device to use the color of the main video conversion device. In order to display the video data in the standard color space of the output converted again based on the color adjustment parameter in the conversion look-up table generation unit on the confirmation device as colors reproduced by the final output device of the movie system The video conversion system according to claim 3, wherein color adjustment is performed by converting the data into video data in a color space of the confirmation display device. The camera video data is stored in a video storage device when captured by the camera,
5. The video conversion system according to claim 1, wherein the camera model information and shooting setting information are acquired from metadata of the camera video data. 6.   The video conversion system according to any one of claims 1 to 5, wherein the color reproduction information of the confirmation display device is calculated by calibrating the confirmation display device. The final output device is a projector for screening the projection image in the movie system that creates the projection image from a plurality of types of the camera video data captured by a plurality of the cameras;
The video conversion system is connected to a plurality of the cameras or corresponding to each of the plurality of cameras, and is also connected to a plurality of confirmation display devices or the plurality of confirmation displays. Connected to each of the devices,
The video conversion system according to any one of claims 1 to 6, wherein the confirmation display device is for confirming a color of the final output device on a shooting side of the movie system.   The video conversion system according to claim 1, wherein the camera is a digital video camera or a digital camera that captures a subject and acquires the camera video data.   5. The video conversion system according to claim 3, wherein the standard color space for output is a color space that does not depend on an output device.   The standard color space of the output is an output color space assuming an ideal output device having a dynamic range of 10,000: 1 or more, an output color space assuming a standard output device, or a movie screened on a movie system projector 5. The video conversion system according to claim 3 or 4, wherein the video color conversion system is an output color space that assumes a preview of a film for use. Multiple cameras,
The video conversion system according to any one of claims 1 to 10, wherein the video conversion system is disposed corresponding to each of the plurality of cameras.
A display device for confirmation disposed respectively corresponding to at least one sub-video conversion device and main video conversion device of the video conversion system;
The camera video data captured by the plurality of cameras connected to the main video conversion device of the video conversion system, or converted from the camera video data in the look-up table generation unit of the main video conversion device. A movie system photographing system comprising: a video storage device for storing video data in a standard color space of output or a portable storage device. A lookup table generation server;
The lookup table generation server is connected to an editing system including at least one video editing device, and the camera model information and shooting setting information for each shooting scene of the camera video data, and the camera video data corresponding to the camera video data The color adjustment parameters are stored, and in response to a request from the editing system, a color conversion lookup table used by the editing system is generated based on the camera model information and shooting setting information and the color adjustment parameters, The movie system shooting system according to claim 11, wherein the movie system is output to the editing system. Color of video data consisting of removal of camera model characteristics, color conversion from input common color space corresponding to final output device including color adjustment to output common color space, and color conversion according to model characteristics of display device for confirmation And a video conversion device capable of confirming the color-processed video at the shooting site by the confirmation display device, and an editing system for producing final video data for screening from the raw video data shot by the camera. A lookup table generation server connected to a video editing device,
A data receiving unit that receives color processing parameters describing information on the color processing of the color-processed video data, and information on an output color space of the video editing device;
A color conversion lookup table generation unit that generates a color conversion lookup table based on the color processing parameter received by the data reception unit and information on the output color space of the video editing device;
A data transmission unit that transmits the color conversion lookup table to the video editing device;
The color conversion lookup table generation unit generates a color conversion lookup table that reproduces the video after the color processing in the video editing device by applying to the raw video data. Table generation server.   14. The look according to claim 13, wherein the color processing parameter is changed for each scene to be photographed and is associated with a scene number or a time code of the camera corresponding to the scene. Uptable generation server. The data receiving unit obtains still image data of a scene corresponding to the color processing parameter together with the color processing parameter,
The lookup table generation server according to claim 13 or 14, wherein the data transmission unit transmits the still image data together when transmitting a color conversion lookup table based on the color processing parameter.   The lookup table generation server according to claim 15, wherein the still image data includes still image data before color conversion and still image data after color conversion based on the color conversion lookup table. The data receiving unit, when accessed from an external client, requests the client to input a password,
The lookup table generation server according to any one of claims 13 to 16, wherein if the input password does not match a preset password, access from the client is blocked. The data receiving unit receives a comment input by a user at the time of shooting or color adjustment corresponding to the color processing parameter,
The said data transmission part transmits the said comment corresponding to the said color processing parameter, when transmitting the said color conversion lookup table based on the said color processing parameter. The lookup table generation server described in 1.

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