KR101512813B1 - computer-readable recording medium having a program recorded media and playing a media performing said method and reproduction method, and screen switching by recognition of image expression - Google Patents

Abstract

A method for recognizing a stereoscopic format of a video image according to the present invention and switching and reproducing the stereoscopic image comprises: segmenting the stereoscopic image into frames; Indexing at least one subdivided frame into an image; Recognizing a stereoscopic image by extracting an image of the frame by area and coordinates; Extracting attribute information of the stereoscopic image to recognize a stereoscopic format; And reproducing the stereoscopic image corresponding to the stereoscopic format supported by the media playback medium.
According to this technical feature, the stereoscopic image can be viewed without changing the setting of the media playback medium when the stereoscopic video is viewed by the user.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer readable recording medium having a computer readable recording medium having a program recording medium and a computer readable recording medium storing a media playback medium and a program for performing the method, < / RTI > said method and reproduction method,

The present invention provides a high quality stereoscopic image by providing a high quality stereoscopic image to a user by converting a video image into a stereoscopic format optimized for a video image in a media playback medium, And a computer readable recording medium storing a media playback medium and a program for performing the method.

Definition of stereoscopic image

Stereo-Scopic image separates left and right images from each other and presents binocular disparity (binocular disparity) to the left and right eyes by presenting the same image as seen from left and right respectively, Which is expressed as a three-dimensional space (Three Dimension).

Implementation of stereoscopic image

The stereoscopic image is applied various techniques as exemplified below depending on the application environment and purpose such as media reproduction medium, display device, graphic effect, and the like.

(1) The Side by Side method is a method of symmetrically separating stereoscopic images such as 2D and 3D in left-right and up-down directions and is generally used in terrestrial and cable broadcasting.

(2) The Top & Bottom (or Over under) method is a method of expressing left and right stereoscopic images by symmetrically separating the stereoscopic image screen in the up-down direction.

(3) The Frame Sequential method is a formatting method applied to a stereoscopic image of a shutter system. Since there is no optimized codec, image quality deterioration and frame restrictions may occur during encoding.

(4) The frame packing method is a method of representing a stereoscopic image by grouping the left image and the right image, which exist separately, into one file.

(5) The color separation method is a method of synthesizing a stereoscopic image using color components of a left-right stereoscopic image, and is generally applied to a two-dimensional (2D) monitor using red-eyeglasses.

problem

There is an inconvenience that the image reproduction method optimized for the stereoscopic image should be directly set in the media reproduction medium when the user views the stereoscopic image,

When a video image desired by the user is a general image that does not support stereoscopic images, the stereoscopic image can not be viewed on the media playback medium.

The present invention relates to a method of switching and reproducing a screen by recognizing a stereoscopic format of a video image to solve such a conventional problem, and a media playback medium and a computer readable recording medium on which the program is recorded,

(1) Providing a stereoscopic image viewing without changing the setting of the media playback medium when the stereoscopic image is viewed,

(2) When a stereoscopic image is reproduced in a media playback medium, the stereoscopic image is converted into a stereoscopic format optimized for the image (for example, a general image, a stereoscopic image, a hologram, etc.)

(3) To minimize the time required for image loading, screen recognition, and stereoscopic image conversion when a stereoscopic image is reproduced from a media playback medium, thereby quickly meeting the user's viewing needs.

According to an aspect of the present invention, there is provided a method of recognizing a stereoscopic format of a video image and switching and reproducing the stereoscopic image according to the present invention includes dividing stereoscopic images into frames, Indexing at least one subdivided frame into an image; Recognizing a stereoscopic image by extracting an image of the frame by area and coordinates; Extracting attribute information of the stereoscopic image to recognize a stereoscopic format; And reproducing the stereoscopic image corresponding to the stereoscopic format supported by the media playback medium.

A method according to the present invention includes a step of multithreading a frame of a stereoscopic image and indexing the stereoscopic image into an image.

In one aspect, the attribute information of the stereoscopic image includes stereoscopic characteristic information (including glasses, no-spectacles, complete stereoscopy, and polarized light time sharing), the number of frames for reconstruction of stereoscopic images (including information amount, position of saturation, saturation, Information (including scan line, frame rate, aspect ratio, horizontal-vertical scan rate).

In one embodiment, the stereoscopic format is a stereoscopic image, a two-dimensional stereoscopic image, and a three-dimensional stereoscopic image.

The method includes recognizing a format of a stereoscopic image from attribute information of a stereoscopic image and determining whether the stereoscopic image is supported by the media playback medium; And converting a format of the stereoscopic image corresponding to a stereoscopic format supported by the media playback medium

A method according to the present invention includes switching a format of a stereoscopic image based on attribute information of a stereoscopic image stored in an index information file corresponding to a stereoscopic format supported by a media playback medium.

A method according to the present invention includes converting a format of a stereoscopic image corresponding to a stereoscopic format supported by a media playback medium and reproducing the format.

Meanwhile, a method for recognizing a stereoscopic format of a video image and switching and reproducing a screen according to the present invention is implemented by a program command and is executed in a media playback medium and a computer readable recording medium.

Through this technical solution,

(1) There is an effect that the stereoscopic image can be viewed without changing the setting of the media reproduction medium directly by the user when the stereoscopic video is viewed,

(2) It is effective to provide a high-quality stereoscopic image to the user by switching to a stereoscopic format (for example, a general image, a stereoscopic image, a hologram, etc.) optimized for the image when the stereoscopic image is reproduced in the media playback medium ,

(3) The time required for image loading, screen recognition, and stereoscopic image conversion when a stereoscopic image is reproduced from a media playback medium is minimized, thereby promptly satisfying a viewer's viewing needs.

FIG. 1 illustrates a process of recognizing a screen of a stereoscopic image according to an embodiment of the present invention,
FIG. 2 illustrates a process of dividing a screen of a stereoscopic image recognized in FIG. 1 into frames,
FIG. 3 illustrates a table defining the extracted attribute values in FIG. 1,
4 and 6 illustrate a process of reading a stereoscopic format of an image from a frame image according to an embodiment,
FIG. 7 illustrates a process of converting a stereoscopic image of an image according to an embodiment from two-dimensional (2D) to stereoscopic and three-dimensional (3D)
FIG. 8 shows a process of converting a stereoscopic image according to an embodiment of FIG. 7 from a three-dimensional (3D) image to a stereoscopic image and a two-dimensional image (2D).

The present invention relates to a method for switching and reproducing a screen by recognizing a stereoscopic format of a video image and a media playback medium for performing the method and a computer readable recording medium on which a program is recorded, When a video is played back, the video is converted into a stereoscopic format optimized for the video, thereby providing a high quality stereoscopic video to the user.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the technical embodiments of the present invention can be implemented in various ways according to the technological level of a person skilled in the art, and thus are not limited to the embodiments described in this specification.

For the sake of clarity, parts not related to the description are omitted from the drawings, and a detailed description of parts that are well known to those skilled in the art is omitted.

In the specification and claims, it is to be understood that when a section is referred to as " comprising " an element, it may be interpreted that it may further include other elements unless specifically stated otherwise.

The technical terms mentioned in the specification are interpreted broadly among the meanings commonly used in the technical field to which the present invention belongs. However, even if it is a usual technical term, the case where the meaning is given separately in this specification is not so.

Definitions of key technical terms in this specification

Hereinafter, the " media playback medium " is a desktop personal computer, a display device, a television (TV), and a multimedia portable assistant capable of reproducing stereoscopic images, And a dedicated video codec for reproducing stereoscopic images can be mounted. The term " media playback medium " is intended to encompass all types of optical media such as magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs and DVDs, A magneto-optical media, and a hardware device specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like.

On the other hand, "media playback media" is implemented as a programming language and resides in mobile and desktop operating systems (including "Android", "Unix", "Linux", "Mac OS X", "iOS", "Windows" It means software that plays video. For example, the term " media playback medium " includes a Web programming language such as VBScript, Cpmmon Gateway Interface, PHP (Hypertext Preprocessor), Java Server Pages (JSP), Active Server Pages (ASP), JAVA, Hypertext Makeup Language , JAVASCRIPT and XML (Extensible Makeup Language)) to play 3D images on a mobile operating system. Alternatively, it can be implemented as a computer programming language (including Visual Basic, C language, and JAVA) The image can be reproduced.

Hereinafter, the term "stereoscopic format" means stereoscopic image representation of a video image. The stereoscopic image stereoscopic image display system according to the present invention includes a stereoscopic image display system, a two-dimensional stereoscopic image display system, (three Demension).

FIG. 1 illustrates a process of recognizing a screen of a stereoscopic image according to an embodiment of the present invention, FIG. 2 illustrates a process of dividing a screen of a stereoscopic image recognized in FIG. 1 into frames, FIG. Represents a table that defines a value.

The stereoscopic image is indexed (indexed), the screen is divided into frames, and attribute values of the respective frames are extracted and defined in a table form (step S101).

In one aspect, a palette header (palette header, palette name is defined), palette data (Pal Data, palette data values obtained from the image are defined), a scene header (Scene Header, a number for a specific scene is defined) is defined. In the index table, a scene item is defined. The item header (Item Header, the scene number is defined), the start number (start frame, the start frame number of the scene is defined), the end number Number, the end frame number of the scene is defined).

Of course, information related to icons, contents, and text may be additionally defined in the index table according to media playback environments such as media playback media, display devices, graphic effects, and stereoscopic video production and programming purposes A detailed description of the preferred embodiments of the present invention will be omitted.

On the other hand, the stereoscopic image is indexed to subdivide the screen into frames, and attribute values of each frame are extracted and defined in the form of a table. According to this technical feature, the present invention increases the search speed of a frame in the process of imaging a screen of a stereoscopic image.

For example, in order to recognize a stereoscopic format of an image, the playback section (start, end) of each frame is repeatedly decoded to image the screen. In the present invention, the entire amount of the stereoscopic image is indexed, And defines the frame as a table referring to the value defined in the table. Therefore, the frame of the screen recognized in the stereoscopic image can be quickly imaged, and the image generation speed for the frame is improved.

According to this technical feature, the present invention can shorten the time required from initial loading to conversion of a stereoscopic format when a stereoscopic image is reproduced in a media playback medium.

Meanwhile, the present invention indexes a frame of the subdivided stereoscopic image into an image, extracts an image for each area (step S102), and decodes the frame image to recognize the image screen (step S105).

Video images are generally divided into three-dimensional (2D) and three-dimensional (3D) images. The two-dimensional representation image is divided into a bitmap and a graphic in the form of a vector. The bitmap is divided into a pixel ((X, Y) Pixel), and the vector implements the shape by applying various function values on the two-dimensional coordinates.

Three Dimension is a kind of vector graphics. It does not implement graphic shape by creating pixels. By applying various function values on only three-dimensional (X, Y, Z) coordinates, , Space). In the 3D method, 3D data is defined as a line through a rendering process.

These stereoscopic images (2D and 3D) are represented by Side by Side, Top & Bottom, Frame Sequence, Frame Packing, and Color Separation, and unique attribute values are defined in the image frame according to each format .

The present invention recognizes a stereoscopic format (e.g., a stereoscopic image, a two-dimensional stereoscopic image, a three-dimensional stereoscopic image, or a hologram) of the image by reading the characteristic difference expressed on the image screen from the attribute information read out from the frame image step).

FIGS. 4 and 6 illustrate a process of reading a stereoscopic format of an image from a frame image according to an embodiment.

According to the present invention, the image is indexed to frame the stereoscopic image frame by frame (Frame1 - > Frame n), and the specific position of each frame image DP1 - > DPn) to recognize the stereoscopic format of the frame. Through these technical features, the present invention can improve the recognition rate of stereoscopic format of an image.

Meanwhile, in the present invention, the frame image of the generated image is multithreaded (step S103). Accordingly, when the frame image is decoded, it is possible to improve the retrieval speed of the frame, thereby increasing the speed of recognizing the stereoscopic format for the frame.

FIG. 7 illustrates a process of converting a three-dimensional image of an image according to an embodiment from two-dimensional (2D) to solid and three-dimensional (3D) Dimensional solid, and two-dimensional (2D).

The input stereoscopic image is indexed and indexed and subdivided into frames (S201). The subdivided frames are indexed with an image to extract an image for each region (S202). In the present invention, the extracted image is subjected to multithread processing to improve a frame search speed upon decoding (step S203).

The stereoscopic image of the image is decoded by decoding the image of the frame (S205), and the stereoscopic format of the image is analyzed by reading the attribute information from the image of the frame (S208). The attribute information includes at least one of three-dimensional characteristic information (including spectacles, spectacles, complete stereoscopic, and polarized time-division), the number of frames for reconstructing a stereoscopic image (including information amount, position of color, degree of saturation, Speed, aspect ratio, horizontal-vertical scan rate).

Also, the stereoscopic format of the image supported by the media playback medium is analyzed (step S211).

Meanwhile, the stereoscopic format of the image input in step S201 is recognized, and the stereoscopic format is converted into a stereoscopic format supported by the media playback medium, and an index is generated for the stereoscopic format to reproduce video (step S216) . For example, if the image input in step S201 is a three-dimensional stereoscopic format and the media playback medium supports a two-dimensional stereoscopic format, the three-dimensional stereoscopic format is converted to a stereoscopic image format to reproduce the image. Of course, if the stereoscopic format of the image input in step S201 is the same as the stereoscopic format supported by the media playback medium, the image is reproduced without switching.

When a two-dimensional stereoscopic format is supported by the media playback medium as a result of analysis of a stereoscopic format supported by the media playback medium, the two-dimensional stereoscopic image input in step S201 is converted into a three-dimensional stereoscopic format (Step S213), generates an index for the converted stereoscopic image, and plays back the video (step S216).

That is, in the above-described embodiment, the stereoscopic format of the media playback medium is switched and reproduced in the optimized stereoscopic format without changing the stereoscopic format of the image input in the step S201. However, in another embodiment The stereoscopic format of the image input in the step S201 may be converted to correspond to the stereoscopic format supported by the media playback medium to reproduce a high quality stereoscopic image.

For example, if a stereoscopic image of a higher quality than the stereoscopic image input in step S201 is supported in the media playback medium (S201), the stereoscopic format of the image input in step S201 is stored in an upper stereoscopic format (Step S213).

According to the technical features of the present invention, when a stereoscopic image is reproduced in a media playback medium, the stereoscopic format of the image input in step S201 and the stereoscopic format supported by the media playback medium, Dimensional stereoscopic image, a three-dimensional stereoscopic image, and a hologram), converts the input stereoscopic image into a high-quality stereoscopic format supported by the media playback medium, and plays back the stereoscopic image without any additional setting .

Although it has been described above that the stereoscopic image input in the step S201 is converted into a high-quality stereoscopic format supported by the media playback medium for the preferred embodiment (stereoscopic or 2D stereoscopic image → 3D stereoscopic image) Dimensional stereoscopic image can be converted into a low-quality stereoscopic image and reproduced (2D stereoscopic image → stereoscopic image), and a high-quality three-dimensional stereoscopic image is converted into a low-quality stereoscopic image and a two-dimensional stereoscopic image (3D stereoscopic image → 3D stereoscopic image or 2D stereoscopic image).

Meanwhile, in step S206, the attribute information read from the frame image is stored and updated in the video information file. Preferably, the stereoscopic format of the image read in steps S209 and S212 and the attribute information of the stereoscopic image input in the step S201 are stored and updated in the video information file. Therefore, even if a series of processes performed to reproduce the stereoscopic image are not performed, the stereoscopic image input in the step S201 is referred to a high-quality stereoscopic format supported by the media playback medium by referring to the value stored in the video information file, Can be reproduced.

The stereoscopic format of the image read in steps S209 and S212 and the attribute information of the stereoscopic image input in step S201 are stored and updated in the index information file in step S214. Therefore, even if the stereoscopic image is not read from the stereoscopic image by repeatedly indexing the image frame when the stereoscopic image is reproduced, the stereoscopic image can be continuously reproduced by referring to the value stored in the index information file.

According to this technical feature, the time required for image loading, screen recognition, and stereoscopic image conversion in the media playback medium is minimized, and the preparation time consumed for stereoscopic image playback can be shortened.

The method embodiments according to one aspect of the present invention described above are implemented as program instructions to be executed on a media playback medium and a computer readable recording medium.

The computer-readable recording medium may include program commands, data files, data structures, and the like, alone or in combination. The computer-readable recording medium may be any type of optical storage media such as magnetic media such as hard disks, floppy disks and magnetic tape, optical media such as CD-ROMs and DVDs, magnetic-optical media such as floppy disks, And a hardware device specifically configured to store and execute program instructions, such as magneto-optical media, and ROM, RAM, flash memory, and the like.

The program instructions may be specially designed, configured, or otherwise available to those skilled in the computer software to implement the method embodiments of the present invention. Program instructions include machine code generated by the compiler as well as high-level language code that is executed on the computer via an interpreter.

The method of the present invention described above is not limited to the order of each of the illustrated steps. That is, the order of each step may vary according to the technical level of a person skilled in the art, and a plurality of steps may occur at the same time.

On the one hand, those skilled in the art will recognize that the steps illustrated are not exclusive, that one or more other steps may be included in a particular step, and that certain steps described in the flowchart may be omitted without affecting the technical scope of the present invention.

The above-described embodiments of the present invention include examples of various aspects as long as they fall within the scope of the claims. Therefore, it should be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

Claims (8)

Segmenting the stereoscopic image into frames;
Indexing at least one of the subdivided frames into an image;
Extracting an image of the indexed frame by region and coordinates to recognize a stereoscopic image;
Extracting attribute information of the stereoscopic image and recognizing a stereoscopic format; And
Reproducing the stereoscopic image for a stereoscopic format supported by a media playback medium
, ≪ / RTI &
And a step of performing a multiple-thread processing on the frame of the stereoscopic image to index into an image.
delete The method according to claim 1,
The attribute information of the stereoscopic image may include at least one of stereoscopic characteristics information (including spectacles, spectacles, complete stereoscopy, and polarization time division), the number of frames for reconstruction of a stereoscopic image (including information amount, position, saturation, A frame rate, an aspect ratio, and a horizontal-vertical refresh rate) of the video image.
The method according to claim 1,
Wherein the stereoscopic format comprises at least one of a general image (non-stereoscopic image), a two-dimensional stereoscopic image, and a three-dimensional stereoscopic image, which is the stereoscopic image representation of the video image. To switch the screen and play it.
The method according to claim 1,
Recognizing a format of the stereoscopic image from the attribute information of the stereoscopic image, and determining whether the format is supported by the media playback medium; And
Converting a format of the stereoscopic image corresponding to a stereoscopic format supported by the media playback medium;
Wherein the stereoscopic format of the video image is recognized and converted and reproduced on the screen.
The method according to claim 1,
And converting the format of the stereoscopic image into the stereoscopic format supported by the media playback medium with respect to the attribute information of the stereoscopic image. .
The method according to claim 1,
Converting a stereoscopic format of the stereoscopic image into a stereoscopic format supported by the media playback medium to generate an index and reproducing the stereoscopic image; .
A computer-readable recording medium recording a program for implementing the method according to any one of claims 1 to 7.

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