KR20160097947A - Method for storing 4k image data - Google Patents

Abstract

Encoding the 4K image data of the obtained RAW data using a DaVinci Resolve program which is image editing software; Reducing the capacity of the encoded 4K image data using the DaVinci Resolve program; Encoding and editing the 4K image data with reduced image size using a final cut program as image editing software; Performing a low-quality rendering process on the edited 4K image data using a final cut program; And encoding the low-quality rendered 4K edited image data using the Da Vinci Resol program to obtain high-quality 4K edited image data.

Description

{METHOD FOR STORING 4K IMAGE DATA}

The present invention relates to a 4K image data storage technique in which a 4K photographed image is conveniently stored and processed in post-production.

Recently, interest in 4K image has been amplified, and 4K image has been actively studied. In recent years, RAW files are stored in RAW format data that is not coded in order to save image data. RAW files are very large in capacity and can not be opened in the latter editing software. .

In addition, the RAW file provided by the latest 4K camera provides a RAW File Browser for each editing program maker at the time of editing, and provides a function of converting into preview file and editing file. However, the field requires a solution that is compatible with all RAW files, regardless of the manufacturer, and also has a fast conversion speed.

Therefore, a new method for solving these problems is required.

An object of the present invention is to provide a 4K image data storing method in which a 4K photographed image is conveniently stored in a post-process.

According to an aspect of the present invention, there is provided a method of storing image data, comprising the steps of: encoding 4K image data of acquired RAW data using a DaVinci Resolve program as image editing software; Reducing the capacity of the encoded 4K image data using the DaVinci Resolve program; Encoding and editing the 4K image data with reduced image size using a final cut program as image editing software; And performing a low-quality rendering process on the edited 4K image data using a final cut program.

In one embodiment, the method may further include encoding the low-quality rendered 4K edited image data using the da Vinci Resol program to obtain high-quality 4K edited image data.

In one embodiment, reducing the capacity of the encoded 4K image data comprises:

And reducing the capacity of the 4K image data of the RAW data to a half size or a quarter size using the DaVinci resolution program.

According to the 4K image data storing method according to the embodiment of the present invention, it is possible to conveniently perform the second half of the 4K photographed image and shorten the rendering time when editing the high quality image.

1 illustrates a system configuration for a rendering speed test according to an embodiment of the present invention;
Fig. 2 shows a known final cut program as image editing software; Fig.
FIG. 3 is a view for comparing the rendering speeds between the Final Cut and the Da Vinci Resol as image editing software. FIG.
4 is a flowchart illustrating a 4K image data storing method according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, detailed description of known related arts will be omitted when it is determined that the gist of the present invention may be unnecessarily obscured. In addition, numerals (e.g., first, second, etc.) used in the description of the present invention are merely an identifier for distinguishing one component from another.

Also, in this specification, when an element is referred to as being "connected" or "connected" with another element, the element may be directly connected or directly connected to the other element, It should be understood that, unless an opposite description is present, it may be connected or connected via another element in the middle.

FIG. 1 is a diagram showing a system configuration for a rendering speed test according to an embodiment of the present invention, FIG. 2 is a diagram showing a known final cut program as image editing software, FIG. And DaVinci Resolves.

In order to clearly understand the 4K image data storing method according to the embodiment of the present invention, it is necessary to understand the advantages and disadvantages of existing image editing programs.

Editing files for image editing are selected according to the editing system to be used. Currently, as shown in Table 1 below, the Avid DNxHD codec and the CineForm HD codec are the most widely used.

[Table 1]

Among the existing image editing software, Blackmagicdesign's DaVinci Resolve is a solution that supports both RAW and editing codecs for various codec images as shown in Table 1 above. DaVinci Resolve is the fastest and easiest way to edit video files. Also. DaVinci Resolve makes it easy to apply first color correction and look-up-table as well as file conversion. It also works with editing system and data editing such as XML, EDL, etc. . However, the DaVinci Resolve is not widely used in the field because of its complexity and difficulty to use unless it is a very well-trained professional.

Currently, the most widely used image editing software in the field is the program called Final Cut developed by Apple (see FIG. 2). The Final Cut program has the convenience of a work environment that makes it easier to edit images even for less trained beginners, but has a slower rendering time than its high popularity. In particular, files with different file names have a larger rendering problem. For example, for a file with an extension of MOV of 60 minutes, a rendering time of 30 to 40 minutes is required for a file of the MOV extension. For a file having an extension of mp4, the rendering time is 50 to 60 minutes . Especially, for 4K RAW images, the rendering time can take up to 2 ~ 3 hours.

A plot of the rendering speed comparison between the DaVinci Resolve and the Final Cut is shown in FIG. Referring to FIG. 3, it can be seen that the rendering speed of the DaVinci Resolve is much better for the same image. Fig. 3 shows a case in which the system configuration as shown in Fig. 1 is used for the comparison of the rendering speeds.

Therefore, a new method is required to combine the advantages of each of the above image editing software, DaVinci Resolve, and the final cut (the easy operation of the final cut, the high compatibility of DaVinci Resolve, and the rendering speed).

4 is a flowchart illustrating a 4K image data storing method according to an embodiment of the present invention. Hereinafter, a 4K image data storing method according to an embodiment of the present invention will be described in detail with reference to FIG.

In step S110, the image obtained from the 4K camera is extracted. In steps S120 and S130, the image of RAW data acquired through the 4K camera is encoded into DaVinci Resolve. At this time, the image of RAW data acquired through the 4K camera has a very large capacity exceeding 5T Bytes in the case of data of one hour, and in the case of image editing software such as the existing final cut, the image is read for editing it's difficult. Therefore, the image of the RAW data is encoded through DaVinci Resolve.

Then, in step S140, the capacity of the RAW data image is reduced through DaVinci Resolve. At this time, since the editing proxy file does not need to be high quality, it is possible to reduce the capacity of the image by setting the Debayer quality of RAW to about half or quarter.

As described above, in the state where the capacity of the image is reduced after encoding using DaVinci Resolve, the image to be reduced in capacity is read in a final cut according to step S150, and then the image is edited. Since the image size is reduced in accordance with the previous step S140, there is no problem in encoding and reading by using the final cut, and the editor can perform image editing using the easy and convenient working environment provided by the Final Cut. For example, the original image for about one hour can be generated as a broadcast edit image for about 10 minutes through the image editing in step S150.

When the image editing through step S150 is completed, the image that has been edited in step S160 is subjected to the low-quality rendering using the final cut. At this time, since the rendering is to render a low-quality image with respect to the edited image, the rendering time (speed) will be improved when the original image is directly rendered even by using the final cut.

After performing the low-quality rendering through the step S160, the high-quality edited video can be finally obtained by performing the encoding process using the DaVinci Resolve again in the step S170 (refer to step S180). In DaVinci Resolve, since there is information about a high-quality image of existing RAW data, it is possible to reproduce a high-quality edited video by extracting a high-quality image corresponding to a low-quality rendered image by the final cut.

As described above, according to the 4K image data storing method according to the embodiment of the present invention, problems in high-quality rendering, which is pointed out as a problem in the most widely used final cut according to the convenience of the work environment, can be solved through the DaVinci Resolve program There is an effect that can be.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims And changes may be made without departing from the spirit and scope of the invention.

Claims (3)

A method for storing image data,
Encoding the 4K image data of the obtained RAW data using a DaVinci Resolve program which is image editing software;
Reducing the capacity of the encoded 4K image data using the DaVinci Resolve program;
Encoding and editing the 4K image data with reduced image size using a final cut program as image editing software; And
Performing a low-quality rendering process on the edited 4K image data using a final cut program
And storing the 4K image data.
The method according to claim 1,
Encoding the low-quality rendered 4K edited image data using the da Vinci Resol program and obtaining high-quality 4K edited image data
And storing the 4K image data.
The method according to claim 1,
Wherein the step of reducing the capacity of the encoded 4K image data comprises:
And reducing the capacity of the 4K image data of the RAW data to a half or quarter size using the DaVinci Resolve program.

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