KR101921420B1 - Apparatus and method for playing video contents - Google Patents

Abstract

The present invention relates to an apparatus and a method for playing a video. The method of controlling a video according to another aspect of the present invention includes: a step of selecting specific video content according to a video content playback command; a step of loading a monochromatic filter layer corresponding to the complementary color of an eyesight falling color; a step of applying the monochromatic filter layer to the selected image content and generating eyesight falling prevention content; and a step of controlling the display of the generated eyesight falling prevention content. It is possible to remove blue light.

Description

[0001] APPARATUS AND METHOD FOR PLAYING VIDEO CONTENTS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an apparatus and a method for image reproduction, and more particularly, to an apparatus and a method having a vision protection function of a viewer who watches image contents.

Recently, blue light and a problem caused by blue light have become an issue.

Blue light is a blue light that exists at wavelengths between 380 and 500 nanometers. It is the wavelength of light used for the treatment of acne in dermatologists and has been pointed out that it can be harmful to the body for a long time.

In particular, modern people who use IT equipment for a long time increase their eye fatigue. In severe cases, they damage the retina or lens in the eye. Also, if you watch a smartphone, PC, or TV for a long time at night, it is difficult to fall asleep immediately. Blue light also hinders the secretion of sleep inducing hormone.

In particular, the risk of blue light is likely to cause retinal damage when exposed to visible light wavelengths in the 400 to 500 nm band.

Under normal conditions, when the light reaches the photoreceptor of the retina, the cell stops its activity until it is restored through the metabolic process. The 430nm wavelength blue light enhances the potential for cellular oxidative damage, and the 1/2-minute exposure to 408nm wavelength , And 25-minute exposure at 430 nm, leading to permanent receptor cell damage and retinal epithelial lesions.

It is not easy for many parents to watch TV, etc., especially for children, but it is not easy to correct the attitude of children who watch TV or watch for a long time. In the case of children with such a bad habit, The possibility of visual impairment is inevitably increased.

In order to solve such a problem of blue light, a technique of lowering the emission of blue light in a notebook or a monitor has been proposed. However, this is to lower the blue light emitted from the display panel itself. There is a problem in that it can not be applied.

Published Japanese Patent Application No. 10-2015-0058016

It is an object of the present invention to provide an apparatus and method for displaying a blue light removal effect for each content in a device that enables users to view various contents such as a TV viewing .

According to an aspect of the present invention, there is provided a video playback apparatus including: a content selection unit for selecting a specific video content according to a video content playback command; A content change processing unit for loading a monochromatic filter layer corresponding to a complementary color of a visual depression color and applying the monochromatic filter layer to the selected image contents to generate a visual depression preventing content; And a content display control section that controls the display device to display the visual acuity-reduction preventing content generated by the content change processing section.

According to another aspect of the present invention, there is provided a method of controlling a video reproducing apparatus, including: selecting a specific video content according to a video content playback command; Loading a monochromatic filter layer corresponding to a complementary color of visual loss of color; Applying the monochromatic filter layer to the selected image content to generate a visual deterioration preventing content; And controlling the generated visual acuity-reduction preventing contents to be displayed.

As described above, according to the present invention, not only the control on the display panel, but also the function of preventing visual deterioration through application of a specific filter in the image reproducing apparatus such as the set-top box is performed, have.

Particularly, when a user selects a specific image content through a menu operation, it is determined whether or not the visual depression prevention function is activated based on the entry point through the menu operation, The visual acuity reduction preventing process can be performed on the specific image contents even if not received.

Furthermore, even in the same image content, the alpha value of the filter layer for the visual reduction prevention function is dynamically changed based on the color information included in each frame, thereby achieving an appropriate visual protection function. In addition, The color change of the content can be minimized.

In addition, it is possible to select whether or not to set the VISUAL PROTECTION MODE from the user, and thereby not activate the VISUAL VISUAL PROTECT mode even when the VISUAL PROTECT mode is set, but to activate the VISUAL PROTECT mode Thus, user convenience can be increased.

1 is a schematic configuration diagram of an entire communication system including an image reproducing apparatus according to an embodiment of the present invention,
Fig. 2 is a functional block diagram of the video reproducing apparatus of Fig. 1,
3 is a flowchart illustrating a communication flow and a control process between a video playback apparatus and a content providing server according to an embodiment of the present invention,
4 is a diagram illustrating a process of adjusting the alpha value of a monochromatic filter layer for each frame of image content,
FIG. 5 is a control flowchart of an image reproducing apparatus according to another embodiment of the present invention.

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

Hereinafter, embodiments of the present invention will be described in order to facilitate understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention can be configured by combining at least any one of individual components, individual functions, or individual steps included in each embodiment.

In particular, some claims of the claims for convenience include alphabets such as '(a)' for convenience, but these alphabets do not define the order of each step.

Hereinafter, each signal referred to in the embodiments of the present invention may refer to one signal transmitted by one connection or the like, but may also mean a series of signals transmitted for the purpose of performing a specific function . That is, in each embodiment, a plurality of signals transmitted after a predetermined time interval or after receiving a response signal from the counterpart device can be represented by one signal name for convenience.

The overall configuration of the entire communication system including the image reproducing apparatus 100 according to an embodiment of the present invention is as shown in FIG.

As shown in the figure, the entire communication system may include a content providing server 300, a display device 200, and an image reproducing device 100.

Here, the content providing server 300 provides video content, and may store and provide predetermined video content or provide real-time video content such as real-time broadcasting.

The display device 200 includes a display panel (not shown) for displaying actual image contents, and may correspond to, for example, an LCD (Liquid Crystal Display) monitor or a television.

On the other hand, the image reproducing apparatus 100 has a function of processing image contents received from the outside, that is, the contents providing server 300, and then transmitting the processed image contents to the display apparatus 200 to display the image contents on the display apparatus 200 .

The video reproducing apparatus 100 receives the video content transmitted by the content providing server 300 via the wired communication network. However, the video reproducing apparatus 100 may include a wireless module such as a terrestrial transmitting module It is also possible to receive the image content from the content providing server 300 through the wireless channel.

In this embodiment, the image reproducing apparatus 100 and the display apparatus 200 are distinguished from each other, but the image reproducing apparatus 100 may be integrated with the display apparatus 200.

Furthermore, it is needless to say that the video playback apparatus 100 may correspond to a predetermined server connected to the network.

In the following description of the present embodiment, the image reproducing apparatus 100 is a set-top box. In particular, it is assumed that the set-top box receives and reproduces IPTV (Internet Protocol Television) broadcasts in this embodiment.

An example of a specific functional block of the image reproducing apparatus 100 is shown in FIG.

As shown in the figure, the video playback apparatus 100 may include a content selection unit 110, a content change processing unit 120, and a display control unit 130.

Here, the content selection unit 110 performs a function of selecting a specific video content according to a video content playback command.

For example, the content selection unit 110 may control the display device 200 to divide and display the image content list according to the display request of the user's image content list, When one image content is specified, the image content is selected as a content for reproduction.

At this time, the content selection unit 110 may request the content providing server 300 to request the image content designated by the user and receive the image content.

In addition, the content selection unit 110 may determine whether a user requests playback, i.e., whether the selected video content belongs to a predetermined specific group.

For example, when the user is in the 'KIDS broadcast' group in the video content list and the user enters the group 'KIDS broadcast' and selects the video content included in the group, the content selection unit 110 selects It can be determined that the selected video content belongs to the 'kids broadcasting' group.

That is, the content selection unit 110 selects the video content selected by the user based on the kind of entry point on the menu (that is, entry into the 'kids broadcasting' group) Whether or not it is possible.

Or when the user presses a specific button provided on the remote control or the like for the selection of the content belonging to the above-mentioned 'kids group', the content selection unit 110 executes a kind of application corresponding to the 'kids group' When the user selects the image content included in the 'KIDS GROUP' in this state, the content selection unit 110 determines that the user has requested the reproduction, that is, the selected image content included in the ' It can be judged that it belongs to the specific group set for activation of the eye protection mode according to the example.

On the other hand, the content change processing unit 120 loads the monochromatic filter layer corresponding to the complementary color of the blurred vision color, and applies the monochromatic filter layer to the selected image content in the content selection unit 110 to generate the blurred vision prevention content .

That is, the visual degradation preventing content generated by the content change processing unit 120 is obtained by applying the above-described monochromatic filter layer to the visual content received from the content providing server 300 or stored in the self-contained content.

In particular, since the blurred vision color corresponds to blue, the content change processing unit 120 may load the yellow filter layer corresponding to the complementary color of blue and apply it to the image content to minimize the emission of the blue light.

Here, the filter layer may be pre-stored or dynamically generated. For example, the content change processing unit 120 may generate a monochromatic filter layer having RGB values of (255, 255, 0) .

In particular, the content change processing unit 120 may control the alpha value corresponding to the transparency of the monochromatic filter layer to be 25% to 35%.

When the alpha value of the monochromatic filter layer is 100%, the color of the background image content is not visible at all, and if the alpha value is 0%, the monochromatic filter layer corresponds to the transparent layer.

In particular, when the alpha value of the monochromatic filter layer is smaller than 25%, the effect of reducing the blue light is insignificant and the sample protection function does not operate properly. If the alpha value of the monochromatic filter layer is larger than 35% However, the color of the yellow color is noticeable in the video contents, and the viewer may feel inconvenience.

Therefore, it is preferable that the alpha value of the monochromatic filter layer is 25% to 35%.

In this manner, the content change processing unit 120 performs a so-called vision protection function for converting the image content into the sight protection contents, and can perform the vision protection function only for the specific image content without performing such a sight protection function have.

For example, the content change processing unit 120 may perform the process of generating a content for preventing blindness only when the previously selected video content belongs to a predetermined specific group as a result of the determination by the content selection unit 110. [

Specifically, as a result of the determination by the content selection unit 110, the content change processing unit 120 activates the vision protection function only when the user selects a specific video content from the 'KIDS broadcast' group It is possible to pass the image contents through the monochromatic filter layer described above. Here, the selection of the video content belonging to the 'KIDS broadcast' group may be made by entering through a specific app or entering a sub menu of a general IPTV menu, as described above.

Furthermore, the content change processing unit 120 can dynamically change the alpha value of the monochromatic filter layer while performing the vision protecting function for the same image content.

For example, the content change processing unit 120 may change the alpha value of the monochromatic filter layer dynamically according to a preset algorithm based on the frame-by-frame color distribution of the selected image content.

In other words, when a certain frame has a lot of blue, the blue light removal effect is increased by increasing the alpha value, and when there is little blue in a specific frame, the alpha value can be lowered to minimize viewing inconvenience due to application of an excessive monochromatic filter layer.

The alpha value adjustment may be performed for each frame, or for each frame group of a predetermined time unit.

On the other hand, the content display control unit 130 performs a function of controlling to display the content of the visual low-level degradation generated by the content change processing unit 120. [

That is, when the display device 200 is connected as shown in FIG. 1, the content display control unit 130 transmits the visual degradation prevention content generated by the content change processing unit 120 to the display device 200 so as to be displayed .

Hereinafter, a process of transmitting / receiving image content between the image reproducing apparatus 100 and the content providing server 300 according to an embodiment of the present invention will be described with reference to FIG.

First, an image reproducing apparatus (e.g., a set-top box) 100 displays a video content list according to a user's command (step S1).

At this time, the image reproducing apparatus 100 may receive the image content list from the content providing server 300 and display it.

The user can select one of the displayed image content lists (step S3). At this time, the image reproducing apparatus 100 determines whether the selected image content is included in a specific group (a 'kids group' in this embodiment) (Step S5). If it is determined that the selected image content belongs to the 'kids group', the image reproducing apparatus 100 activates the eyesight protection mode (step S7).

At this time, the image reproducing apparatus 100 can detect whether a user enters a menu for selecting a specific image content, and determine whether to activate the eyesight protection mode.

For example, when the user enters the 'kids group' on the image content list menu and selects the image content included in the group, the user can activate the vision protection mode.

In this case, additional information for indicating whether the specific image content is the target of the eyesight protection mode does not need to be included in the corresponding image content.

Then, the image reproducing apparatus 100 requests the selected image contents to the contents providing server 300 (step S9) and receives the selected image contents (step S11). If the image contents selected by the user are pre-stored, these steps are omitted .

The image reproducing apparatus 100 generates a monochromatic filter layer having an RGB value of (255,255,0) and an alpha value of 30% (step S17) when the current vision protection mode is activated (step S13) 300) (step S19).

Here, as an example of applying the monochromatic filter layer to the image content, the monochromatic filter layer may be arranged and then the image content may be disposed at the lower end of the monochromatic filter layer. In this case, And the detailed description thereof is omitted.

Subsequently, the image reproducing apparatus 100 displays the image content to which the monochromatic filter layer is applied (step S21).

The activation state of the Sight Protection Mode may be terminated at the time when the reproduction of the specific image content selected by the user is terminated or may be terminated when the user exits the 'Kid Group' on the image content list menu.

Hereinafter, a specific procedure for dynamically changing the alpha value of the monochromatic filter layer by the image reproducing apparatus 100 will be described with reference to FIG.

First, the image reproducing apparatus 100 extracts a predetermined time frame from the image content (step S31). For example, the image reproducing apparatus 100 can extract frames of 1 second.

Then, the image reproducing apparatus 100 extracts a color distribution of the extracted frame by time unit (step S33), and confirms the blue color ratio based on the extracted color distribution (step S35).

For example, the image reproducing apparatus 100 can confirm the blue ratio of the color distribution of the frames of 1 second.

Then, the image reproducing apparatus 100 calculates an alpha value corresponding to the identified blue ratio (step S37). For example, if the blue ratio is 20% and the alpha ratio is 30, The value can be increased and the alpha value reduced by the rate at which the blue ratio is reduced.

The image reproducing apparatus 100 can set the alpha value thus calculated as the alpha attribute of the monochromatic filter layer (step S39).

Accordingly, a monochromatic filter layer having different alpha values for each frame or each frame group of a predetermined time unit is applied, thereby minimizing the inconvenience of viewing the video contents as well as the visual protection effect.

In the above example, the alpha value of the monochromatic filter layer is automatically promoted. However, it is needless to say that the user can directly adjust the alpha value by providing a menu for alpha value adjustment.

In the above-described embodiment, the case where the contents belonging to a specific group (for example, the 'kids broadcasting group') is selected is always applied to the eyesight protection mode, but the user may set whether or not the eyesight protection mode is activated in advance.

This process is illustrated in FIG.

First, the image reproducing apparatus 100 sets the vision protection mode according to the selection of the user (step S).

In order to set the vision protection mode, the user can select the vision protection mode item included in the existing menu or select a specific button on the remote controller.

In this state, the image reproducing apparatus 100 detects whether or not the user enters the specific TV mode (the TV mode in this embodiment) according to the user's selection (step S43).

As described above, the KIDS TV mode is a mode in which a user enters a KIDS broadcast (child broadcast), for example, by selecting a KIDS broadcast menu among other menus of the IPTV, Application) to enter an environment for selecting a KIDS broadcast.

If it is determined that the user enters the KID TV mode, the image reproducing apparatus 100 activates the eyesight protection mode and reproduces the contents selected by the user while the eyesight protection mode is activated (step S45).

That is, as described above, a filter layer having RGB (255, 255, 0) and an alpha value of 25% to 30% is generated, and the filter layer is applied to the image content and displayed.

In this case, when the entry into the kids TV mode is detected, the image reproducing apparatus 100 may display a guidance pop-up window to inform the viewer that the eyesight protection mode is activated.

If it is determined that the user is not in the TV mode but is in another TV mode (for example, general TV mode), the video playback apparatus 100 plays back the content selected by the user in a state in which the eyesight protection mode is disabled S44).

That is, the user does not always activate the visual acuity protection mode even if the visual acuity protection mode is set in step S41, but activates the visual acuity protection mode only when the user enters a specific TV mode (for example, a kids TV mode) .

On the other hand, if the entry state of the child's TV mode is terminated or released according to the user's selection (step S47), that is, if the user leaves the child's TV mode, the image playback apparatus 100 deactivates the visual- Step S49).

Therefore, if the user subsequently selects a content in a menu or mode other than the Kid's TV mode, the image playback apparatus 100 performs the content playback process by deactivating the eyesight nanny mode even if the eyesight protection mode is set.

Of course, if the eyesight protection mode is not set in step S41, a playback process for the content is performed in a state in which the eyesight protection mode is not activated even if the user enters the kids TV mode.

5, the visual field protection mode is activated at the time of entering the specific TV mode in the state where the visual-safety protection mode is set. However, when the specific content included in the specific TV mode is reproduced, Mode is activated, and the visual acuity protection mode may be deactivated at the time when the reproduction of the corresponding content ends.

In the above-described embodiment, the user sets the vision protection mode by pressing a specific button or the like of the remote controller for setting the vision protection mode, and then activates the vision protection mode when entering the Kid's TV mode. However, The playback apparatus 100 may activate the eyesight protection mode when the user presses the enter button for entering the kids TV mode provided on the remote controller.

In the above-described embodiments, the process according to the vision protection mode is performed on the specific image content selected by the user. However, the process according to the vision protection mode can be performed not only on the specific image content but also on the predetermined menu display screen Of course it is.

For example, as described above, when the user presses the enter button for entering the Kid's TV mode to view the Kid's TV menu screen, the video playback apparatus 100 automatically activates the eyesight protection mode according to entry into the Kid's TV mode, The monochromatic filter layer corresponding to the complementary color is loaded and the corresponding monochromatic filter layer is applied to the contents of the TV menu screen content to generate the visual deterioration preventing contents and then the generated television menu screen is displayed .

That is, in this case, the vision protection mode is applied not only to the specific broadcast content but also to the menu operation screen.

At this time, the user may set whether to activate the vision protection mode in advance.

For example, the user may select the sight-protection mode to be activated in the video playback apparatus 100, and then enter the menu in which the specific contents are collected through the menu operation by pressing the enter key for the TV mode as described above When a specific program menu entry is made, the image reproducing apparatus 100 can perform processing according to the eyesight protection mode and display the menus in which the specific contents are gathered.

In this case, when the entry state of the specific program mode is terminated, that is, when the user leaves the menu where the specific contents are gathered, the image reproducing apparatus 100 can automatically deactivate the eyesight protection mode.

Meanwhile, it goes without saying that the process of performing each of the above-described embodiments can be performed by a program or an application stored in a predetermined recording medium (for example, a computer-readable). Here, the recording medium includes an electronic recording medium such as a RAM (Random Access Memory), a magnetic recording medium such as a hard disk, and an optical recording medium such as a CD (Compact Disk).

At this time, the program stored in the recording medium may be executed on hardware such as a computer or a smart phone to perform each of the above embodiments. In particular, at least one of the functional blocks of the video reproducing apparatus according to the present invention can be implemented by such a program or an application.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes may be made without departing from the gist of the present invention. It is to be understood that such variations and modifications are intended to be included in the scope of the appended claims.

100: image reproducing apparatus 200: display apparatus
300: content providing server 110:
120: content change processing unit 130: display control unit

Claims (17)

(a) selecting a specific image content according to a playback command of the image content;
(b) loading a monochromatic filter layer corresponding to a complementary color of vision-poor color;
(c) applying the monochromatic filter layer to the selected image content to generate blur suppression content;
(d) controlling the display device to display the generated low-vision-reduction-prevention content. The method according to claim 1,
Wherein the monochromatic filter layer having the RGB values of (255, 255, 0) is generated in the step (b). The method according to claim 2, wherein
Wherein the step (b) controls the alpha value corresponding to the transparency of the monochromatic filter layer to be 25% to 35%. The method according to claim 1,
The step (a)
Controlling the display of the image content list so that the image content list is classified and displayed according to a request for display of the image content list;
Determining whether the selected video content belongs to a predetermined specific group in accordance with a user's playback request,
Wherein the step (b) is performed only when the video content requested by the user to play belongs to a predetermined specific group as a result of the determination in step (a). The method according to claim 1,
Wherein the step (b) is performed only when the specific image content selected in step (a) belongs to a predetermined specific group. The method according to claim 1,
Wherein in step (b), the alpha value of the monochromatic filter layer is dynamically changed according to a predetermined algorithm based on a frame-by-frame color distribution of the selected image content. The method according to claim 1,
Further comprising setting a vision protection mode according to a user's selection,
(B) to (d) when the execution of the image content included in the specific program mode is sensed after the predetermined program mode is entered by the user in the state in which the eyesight protection mode is set The control method comprising the steps of: 8. The method of claim 7,
Further comprising the step of deactivating the visual acuity protection mode when the display control of the visual depression preventing contents is terminated. Setting a vision protection mode according to a user's selection;
Loading a monochromatic filter layer corresponding to a complementary color of visual loss due to activation of a vision protection mode when a preset specific program mode entry by a user is detected in a state where the visual acuity protection mode is set;
Generating a visual deterioration preventing content by applying the monochromatic filter layer to a menu screen content according to the entry into the specific program mode;
And controlling to display the generated low-vision-reduction content. 10. The method of claim 9,
Further comprising the step of deactivating the vision protection mode when an entry state of the predetermined program mode is terminated. A computer-readable recording medium storing a program for executing the method according to any one of claims 1 to 10. 10. An application program stored on a computer readable medium for executing the method of any one of claims 1 to 10 in combination with hardware. A content selection unit for selecting a specific video content according to a video content playback command;
A content change processing unit for loading a monochromatic filter layer corresponding to a complementary color of a visual depression color and applying the monochromatic filter layer to the selected image contents to generate a visual depression preventing content;
And a content display control unit for controlling the content to be displayed so as to display the content of the visual reduction preventive content generated by the content change processing unit. 14. The method of claim 13,
Wherein the content change processing unit generates a monochromatic filter layer having an RGB value of (255, 255, 0) and loads the monochromatic filter layer for filter processing. The method of claim 14, wherein
Wherein the content change processing unit controls the alpha value corresponding to the transparency of the single color filter layer to be 25% to 35%. 14. The method of claim 13,
The content selection unit controls the created video content list to be classified and displayed according to the request for display of the video content list of the user, and determines whether the selected video content belongs to the predetermined specific group according to the user's playback request ,
Wherein the content change processing unit performs the video-deterioration prevention content generation process only when the selected video content belongs to a predetermined specific group as a result of the determination by the content selection unit. 14. The method of claim 13,
Wherein the content change processing unit dynamically changes the alpha value of the monochromatic filter layer according to a preset algorithm based on a frame-by-frame color distribution of the selected image content.

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