KR20140077754A - Apparatus for parallel processing of large-scale video data and method thereof - Google Patents

Abstract

An apparatus and a method for processing large-scale video data in parallel are disclosed. The video data processing apparatus includes: a reader unit which receives video data and reads color components forming the video data; at least one encoder unit which encodes each color component in parallel; and a compression storage unit which compresses and stores information encoded in parallel by the at least one encoding unit according to the color components. Therefore, a processing rate of large-scale video data can be improved by reading the large-scale video data more than 4K in parallel and encoding the video data.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and method for parallel processing large-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to video data processing, and more particularly, to an apparatus and method for processing large-capacity video data in parallel.

Recently, broadcasting and TV providing HD (High Definition) video are becoming common, and in the future, they will want bigger and better image quality such as a movie (UHD class video) viewed at a movie theater at home.

In addition, with the development of multimedia technology, the size of the image display device is getting larger as the demand of the user increases, and as the signal processing technology and the semiconductor technology are developed, high quality and high resolution images can be acquired and outputted.

It is generally known that an image of 4K size (4096 × 2160) or more is required when a display device of 63 inches or more is used in a living room environment of 2.5 m viewing distance. When a conventional full-high-definition (FHD) image is reproduced in a 70-inch or larger display device, the pixel of the output image is directly perceived by the user, resulting in deterioration in subjective image quality .

In other words, there is an increasing demand for ultra high definition media, and much attention is focused on acquisition and processing of 4K ~ 8K contents. In order to process ultra-high-definition video data, the amount of data increases by 4 times or more for 4K media and 16 times or more for 8K media, compared with HD.

Also, the data processing speed of current CPU and GPU is continuously increasing, and especially high-performance processors are mostly based on multicore. In the case of CPUs, multi-core processors with 2 to 8 or more processor cores are the mainstream, while GPUs are dominated by Manicore processors with tens to hundreds of cores.

Therefore, application programs are being developed as a parallel program structure to optimally utilize the multicore hardware structure. Therefore, a program for encoding or processing a large amount of video data is also being developed as a parallel program corresponding to multicore.

However, the growth rate of data access speed between disk and main memory and the rate of increase of data transfer rate between main memory and CPU or GPU is not enough. Therefore, it is difficult to input and process original contents of 4K or more in real time.

An object of the present invention is to provide an apparatus for processing large-capacity video data in parallel.

It is another object of the present invention to provide a method for processing large-capacity video data in parallel.

According to one aspect of the present invention, there is provided an apparatus for processing video data, the apparatus comprising: a reader for receiving video data and reading color components constituting video data; An encoding unit, and a compression storage unit for compressing and storing information encoded in parallel by at least one encoding unit for each color component.

Here, the reader unit may read video data stored for each color component in parallel.

Here, the video data processing apparatus may further include at least one storage for separately storing the information encoded in parallel for each color component.

According to another aspect of the present invention, there is provided a video data processing method comprising the steps of: receiving video data and reading color components constituting video data; performing parallel encoding for each color component; And compressing and storing the encoded information for each of the components.

In the case of using the apparatus and method for processing video data according to the embodiment of the present invention as described above, the processing speed for large-capacity video data can be increased by reading and encoding large-capacity video data of 4K or more in parallel.

In addition, it is applied to a digital cinema or a digital signage system that supports high resolution, and has a merit that high-quality video data can be processed at a high speed.

1 is a conceptual diagram showing a structure of video data.
2 is a block diagram showing a configuration of a video data processing apparatus.
3 is a block diagram showing a configuration of a video data processing apparatus according to an embodiment of the present invention.
4 is a conceptual diagram illustrating storage of video data by a video data processing apparatus according to an embodiment of the present invention.
5 is a block diagram showing a configuration of a video data processing apparatus according to another embodiment of the present invention.
6 is a flowchart illustrating a video data processing method according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, A, B, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual diagram showing a structure of video data.

Referring to FIG. 1, original data of a video includes a header and a color component. The header may include various information on the video data 10, and the color component may have various forms depending on the type.

For example, a color component may be represented as RGB, YUV, or XYZ depending on the pixel format. That is, the video data 10 may have a header and a color component sequentially stored.

2 is a block diagram showing a configuration of a video data processing apparatus.

Referring to FIG. 2, the video data processing apparatus 100 includes a reader 110, an encoding unit, and a compression storage unit 130. Here, the encoding unit may include at least one of the first encoding unit 121, the second encoding unit 122, and the third encoding unit 123.

The reader unit 110 can read the video data 10 at one time. For example, the first component may represent R (red), the second component may represent G (green), and the third component may represent B (blue). Accordingly, the reader unit 110 can read each of the color components at one time and transmit it to the encoding unit.

The first encoding unit 121 performs encoding for the first component, the second encoding unit 122 performs encoding for the second component, and the third encoding unit 123 encodes the third component Can be performed.

That is, the encoding unit may perform encoding (sequentially) sequentially for each color component.

The compression storage unit 130 compresses and stores each sequentially encoded color component.

However, since the video data processing apparatus 100 according to FIG. 2 sequentially encodes each color component constituting the video data 10, the processing time of the data may increase. In addition, since the video data 10 are sequentially processed, the amount of calculation can be increased.

3 is a block diagram showing a configuration of a video data processing apparatus according to an embodiment of the present invention.

Referring to FIG. 3, the apparatus 100 for processing video data according to an embodiment of the present invention includes a reader 110, an encoding unit, and a compression storage unit 130. Here, the encoding unit may include at least one of the first encoding unit 121, the second encoding unit 122, and the third encoding unit 123.

In particular, according to the embodiment of the present invention, the first encoding unit 121, the second encoding unit 122, and the third encoding unit 123 may be arranged in parallel.

The reader 110 can receive and read the video data 10 at once. That is, the reader unit 110 may read each color component at a time and transmit it to the encoding unit. In particular, the reader unit 110 can distinguish each color component and transmit it to the corresponding encoding unit.

The first encoding unit 121 performs encoding for the first component, the second encoding unit 122 performs encoding for the second component, and the third encoding unit 123 encodes the third component Can be performed.

In particular, the first encoding unit 121, the second encoding unit 122, and the third encoding unit 123 may simultaneously encode the respective color components in parallel.

That is, the video data processing apparatus 100 according to FIG. 3 can perform encoding for each color component in parallel. Accordingly, the first encoding unit 121, the second encoding unit 122, and the third encoding unit 123 may encode each color component to be suitable for the parallel processor environment.

The compression storage unit 130 compresses and stores parallelly encoded color components. That is, the encoded video data 10 may be stored in storage via the compression storage unit 130. [ Here, storage may mean a place where data is stored in electromagnetic form so that it can be accessed by a computer processor.

4 is a conceptual diagram illustrating storage of video data by a video data processing apparatus according to an embodiment of the present invention.

Referring to FIG. 4, the apparatus 100 for processing video data according to an exemplary embodiment of the present invention may further include a storage for storing information in which each color component is encoded in parallel. Here, the storage may include at least one of the first storage 141, the second storage 142, and the third storage 143.

For example, the first storage 141 stores the encoded information of the first component, the second storage 142 stores the encoded information of the second component, and the third storage 143 stores the encoded information of the third component Can be stored.

That is, the video data processing apparatus 100 according to the embodiment of the present invention can divide and store each color component. In addition, the divided video data 10 may be virtualized into one data and recognized as one data or file in the application program.

5 is a block diagram showing a configuration of a video data processing apparatus according to another embodiment of the present invention.

Referring to FIG. 5, a video data processing apparatus according to an embodiment of the present invention includes a reader 110, an encoding unit, and a compression storage unit 130. The reader unit 110 may include at least one of a first reader unit 111, a second reader unit 112 and a third reader unit 113. The encoding unit may include a first encoding unit 121, The second encoding unit 122, and the third encoding unit 123, as shown in FIG.

The reader unit 110 can parallelly read data stored in parallel by dividing each color component. That is, the first reader 111 reads the first component, the second reader 112 reads the second component, and the third reader 113 reads the third component.

In addition, each reader unit 110 can distinguish each color component and transmit it to the corresponding encoding unit.

For example, the first reader unit 111 may transmit the first component to the first encoding unit 121, the second reader unit 112 may transmit the second component to the second encoding unit 122, And the third reader unit 113 may transmit the third component to the third encoding unit 123. [

The first encoding unit 121 performs encoding for the first component, the second encoding unit 122 performs encoding for the second component, and the third encoding unit 123 encodes the third component Can be performed.

The compression storage unit 130 compresses and stores parallelly encoded color components. For example, the first storage 141 stores the encoded information of the first component, the second storage 142 stores the encoded information of the second component, and the third storage 143 stores the encoded information of the third component Can be stored.

Although each component of the video data processing apparatus 100 according to the embodiment of the present invention described above is described as being arranged in each constituent part for convenience of explanation, at least two of the constituent parts may be combined to form one constituent part, The constituent parts can be divided into a plurality of constituent parts to carry out the function and the case of the integrated and separate embodiments of each constituent part is also included in the scope of the present invention unless the essence of the present invention is satisfied.

In addition, the video data processing apparatus 100 according to the embodiment of the present invention can be implemented as a computer-readable program or code on a computer-readable recording medium. A computer-readable recording medium includes all kinds of recording apparatuses in which data that can be read by a computer system is stored.

The computer-readable recording medium may also be distributed and distributed in a networked computer system so that a computer-readable program or code can be stored and executed in a distributed manner.

6 is a flowchart illustrating a video data processing method according to an embodiment of the present invention.

Referring to FIG. 6, a method of processing video data according to an embodiment of the present invention includes steps of reading color components (S610), performing parallel encoding for each color component (S620), and encoding information per color component And compressing and storing (S630).

The video data 10 may be received and color components constituting the video data 10 may be read (S610). For example, color components may be read at once, or data stored in parallel by dividing each color component may be read in parallel.

Encoding can be performed in parallel for each color component (S620). The color components can be represented as RGB, YUV or XYZ depending on the pixel format.

For example, the first component may represent R (red), the second component may represent G (green), and the third component may represent B (blue). Thus, encoding can be performed simultaneously for each of the first component, the second component, and the third component in parallel.

According to an embodiment of the present invention, the encoding for each color component can be performed in parallel. That is, the encoding process for each color component may be performed so as to be suitable for the parallel processor environment.

The information encoded for each color component can be compressed and stored (S630).

For example, information on each color component encoded in parallel can be separately stored. That is, the encoded information of the first component, the encoded information of the second component, and the encoded information of the third component may be separately stored in the corresponding storage.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

10: video data 100: video data processing device
110: reader unit 111: first reader unit
112: second reader unit 113: third reader unit
121: first encoding unit 122: second encoding unit
123: third encoding unit 130: compression storage unit
141: first storage 142: second storage
143: Third Storage

Claims (1)

A reader unit for receiving video data and reading a color component constituting the video data;
At least one encoding unit performing encoding in parallel for each color component; And
And a compression storage unit for compressing and storing information encoded in parallel by the at least one encoding unit for each of the color components.

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