KR20210130631A - Apparatus and method for providing video contents for preventing user from harmful contents and protecting user's eyes - Google Patents

Abstract

According to one embodiment of the present specification, provided is a method for providing video content, which includes the steps of: selectively providing a video according to a condition separately set for each user by executing a video providing program which selectively provides video content according to a condition separately set for each user; and providing a reward to a first user based on the distance at which the first user, who is a protector, watches the video.

Description

Apparatus and method for providing content for prevention of reproduction of harmful content and protection of eyesight

Embodiments disclosed in this specification provide an apparatus and method for providing video content that minimizes exposure of children to harmful content in a video playback service, prevents damage to children's eyes, and allows content necessary for children to be preferentially recommended. it's about

The center of content consumption is shifting from text or image-oriented content to video content. This phenomenon is particularly pronounced in the younger generation. It is investigated that the younger generation, who are frequently exposed to media from childhood and are accustomed to using smart devices, relatively prefer video content.

Accordingly, there is an increasing need to properly control the exposure of children to videos. Harmful videos with high violence or sensational content are provided to children without being filtered, and there are concerns that learning or motor skills may deteriorate due to long-time video viewing, and visual impairment may occur due to close viewing.

But on the other hand, not all videos are harmful, and they are often used as useful learning materials or toys.

Therefore, rather than controlling all videos, parents want to prevent children from being exposed to harmful content, properly control video viewing time or distance from the screen, and select useful content to provide to children.

However, the conventional video playback services did not satisfy the needs of these guardians. As a prior art, Korean Patent Registration No. 10-1548588, 'a system and method for safe content use based on content use rating,' assigns a rating for each content, and controls exposure to a protected person accordingly. However, in order to control the content exposed to the protected persons based on the rating, it is inconvenient to assign an appropriate rating to all content. In this way, there is a problem in that it is difficult to select and provide useful content to users.

Therefore, there is a need for a technology that can solve the above-mentioned problems and at the same time satisfy the needs of guardians.

In addition, as the age of presbyopia is falling, users' smartphone viewing is expanding. Therefore, middle-aged people also want to protect their eyesight, and for this purpose, they want to maintain a certain distance to the smartphone screen, but their personal will is not enough. In addition, there was no service to motivate the user to maintain the distance to the smartphone screen over a certain level.

On the other hand, the above-mentioned background art is technical information that the inventor possessed for the derivation of the present invention or acquired in the process of derivation of the present invention, and it cannot be said that it is necessarily a known technique disclosed to the general public before the filing of the present invention. .

SUMMARY Embodiments disclosed in the present specification provide an apparatus and method for providing video content that block harmful content in a video playback service and provide useful content to a protected person.

Embodiments disclosed herein have an object to provide a video content providing apparatus and method capable of restricting the indiscriminate viewing of a video by a protector.

SUMMARY Embodiments disclosed herein have an object to provide an apparatus and method for providing video content that enables a guardian to selectively provide content necessary for a protected person.

SUMMARY Embodiments disclosed in the present specification provide an apparatus and method for providing video content for preventing damage to a person's eyesight.

According to one embodiment, as a technical means for achieving the above technical problem, there is provided an apparatus for providing video content, comprising: a storage unit for storing a video providing program and data for selectively providing video content according to conditions set separately for each user; and a control unit that selectively provides a moving picture according to a condition set separately for each user by executing the program, wherein the control unit provides a reward to the first user based on a distance at which the first user who is a protected person watches the moving picture can do.

According to another embodiment, a video content providing method includes: selectively providing a video according to a condition separately set for each user by executing a video providing program that selectively provides video content according to a condition separately set for each user; and providing a reward to the first user based on the distance at which the first user, who is the protector, watches the video.

According to another embodiment, a computer-readable recording medium in which a program for performing a method of providing video content is recorded is disclosed. The method includes the steps of selectively providing a video according to a condition separately set for each user by executing a video providing program that selectively provides video content according to a condition separately set for each user; and providing a reward to the first user based on the distance at which the first user, who is the protector, watches the video.

According to another embodiment, a computer program stored in a medium for performing a method for providing video content is disclosed. The method includes the steps of selectively providing a video according to a condition separately set for each user by executing a video providing program that selectively provides video content according to a condition separately set for each user; and providing a reward to the first user based on the distance at which the first user, who is the protector, watches the video.

According to any one of the above-described problem solving means, it is possible to provide an apparatus and method for providing a video content that blocks harmful content in a video playback service and provides useful content to a protected person.

In addition, according to any one of the problem solving means, it is possible to present a video content providing apparatus and method capable of restricting the indiscriminate viewing of a video by a protector.

Furthermore, according to any one of the problem solving means, it is possible to provide an apparatus and method for providing video content so that the guardian can selectively provide the necessary content to the protector.

Furthermore, according to any one of the problem solving means, it is possible to provide an apparatus and method for providing video content for preventing damage to a person's eyesight. Through this, it is possible to provide a health care service that prevents damage to the eyesight of the protector.

Effects obtainable in the disclosed embodiments are not limited to the above-mentioned effects, and other effects not mentioned are clear to those of ordinary skill in the art to which the embodiments disclosed from the description below belong. will be able to be understood

1 is a block diagram illustrating a configuration of a video content device from an image according to an exemplary embodiment.
2 is an exemplary diagram for explaining a method of providing video content according to an embodiment.
3 is an exemplary diagram for explaining a method for providing video content according to an embodiment.
4 is a flowchart illustrating a content providing method according to an exemplary embodiment.
5 is a flowchart illustrating a method of deriving an age based on a recognized face of a person.

Hereinafter, various embodiments will be described in detail with reference to the accompanying drawings. The embodiments described below may be modified and implemented in various different forms. In order to more clearly describe the characteristics of the embodiments, detailed descriptions of matters widely known to those of ordinary skill in the art to which the following embodiments belong are omitted. In addition, in the drawings, parts irrelevant to the description of the embodiments are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a component is said to be "connected" with another component, it includes not only a case of 'directly connected' but also a case of 'connected with another component interposed therebetween'. In addition, when a component "includes" a component, it means that other components may be further included, rather than excluding other components, unless otherwise stated.

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

The video content providing apparatus 100 may be implemented as an electronic terminal in which an application such as a video playback program or a web browser is installed, or may be implemented as a server or a server-client system. When the video content providing apparatus 100 is implemented as a server-client system, it may include an electronic terminal in which a client for interaction with a user is installed.

In this case, the electronic terminal may be implemented as a computer, a portable terminal, a television, a wearable device, etc. which may include an interface capable of interacting with a user. Here, the computer includes, for example, a laptop, a desktop, and a laptop equipped with a web browser, and the portable terminal is, for example, a wireless communication device that ensures portability and mobility. , PCS (Personal Communication System), PDC (Personal Digital Cellular), PHS (Personal Handyphone System), PDA (Personal Digital Assistant), GSM (Global System for Mobile communications), IMT (International Mobile Telecommunication)-2000, CDMA (Code) All kinds of handheld, such as Division Multiple Access)-2000, WCode Division Multiple Access (W-CDMA), Wireless Broadband Internet (Wibro), Smart Phone, Mobile Worldwide Interoperability for Microwave Access (WiMAX), etc. ) based wireless communication device. In addition, the television may include IPTV (Internet Protocol Television), Internet TV (Internet Television), terrestrial TV, cable TV, and the like. Furthermore, the wearable device is, for example, a type of information processing device that can be worn directly on the human body, such as watches, glasses, accessories, clothes, shoes, etc. can be connected with

In this case, the electronic terminal may include a camera that takes an image toward the front of the display of the electronic terminal, or a proximity sensor that detects a distance to an object in front. Through this, the electronic terminal may calculate an approximate distance between the user and the electronic terminal.

In addition, the server may be implemented as a computer capable of communicating through a network with an electronic terminal in which an application or web browser is installed for interaction with the user, or may be implemented as a cloud computing server. In addition, the server may include a storage device capable of storing data or may store data through a third server.

1 is a block diagram illustrating a configuration of an apparatus 100 for providing video content according to an embodiment. The video content providing apparatus 100 according to an embodiment may include an input/output unit 110 , a communication unit 120 , a storage unit 130 , and a control unit 140 .

The input/output unit 110 may include an input unit for receiving an input from a user, and an output unit for displaying information such as a result of an operation or a state of the video content providing apparatus 100 .

The input/output unit 110 may receive a search command or a playback command for a video from a user, and output a search result based on the received command or play the video to be displayed.

Meanwhile, the communication unit 120 may perform wired/wireless communication with other devices or networks. To this end, the communication unit 120 may include a communication module that supports at least one of various wired and wireless communication methods. For example, the communication module may be implemented in the form of a chipset.

The wireless communication supported by the communication unit 120 may be, for example, Wireless Fidelity (Wi-Fi), Wi-Fi Direct, Bluetooth, Ultra Wide Band (UWB), or Near Field Communication (NFC). Also, wired communication supported by the communication unit 120 may be, for example, USB or High Definition Multimedia Interface (HDMI).

The storage unit 130 may install and store various types of data such as files, applications, and programs. The control unit 140 to be described later may access and use data stored in the storage unit 130 , or may store new data in the storage unit 130 . Also, the control unit 140 may execute a program installed in the storage unit 130 . A video providing program for selectively providing video content according to conditions set separately for each user may be installed in the storage unit 130 .

In addition, the storage unit 130 may store a plurality of video content that can be provided to the user, and meta information about each video content, for example, the title, creator, description, and related keywords of the video.

Also, the storage unit 130 may store information on video restriction conditions that are separately set for each user. In this case, the video restriction condition information may include a setting value for limiting the number of videos that a user can reproduce during a certain period or limiting a video playback time or capacity. In addition, the video restriction condition information may include keywords (hereinafter referred to as 'prohibited words') related to videos that are excluded from the search results provided to the user or that the user cannot watch even though they are searched. In this case, the video restriction condition information can be set by each user or the user's guardian, and in particular, the prohibited words are compared with the title, creator, description, keywords, etc. of the video included in the meta information of each video, and the prohibited words are added to the meta information. The included video may be excluded from the search results for the user, or playback may be restricted so that the user cannot watch it even if it is not excluded from the search results.

Also, video recommendation condition information may be stored in the storage unit 130 . In this case, the video recommendation condition information may be set as tags including a keyword selected by the user or a guardian of the user as information about a condition to which a video that is preferentially recommended to the user or can be viewed by the user belongs. This is a condition in which only videos including the tag set in the meta information are exposed to the corresponding user. Alternatively, after the user watches the video, another video may be automatically played when the playback of the corresponding video ends. In this case, the automatically played video may be a video corresponding to the video recommendation condition described above.

Meanwhile, the above-described video content and meta information of each video content are not necessarily stored in the video content providing apparatus 100 , but may be stored in a separate device. In this case, the separate device may be a device that provides a third-party service operated by an operating entity different from the operating entity of the video content providing apparatus 100 .

Accordingly, the above-described video content providing device 100 may filter the video content provided by the third-party service between the server and the user of another operating entity that provides the video content through the third-party service so that it is provided to the user. have.

Meanwhile, the controller 140 controls the overall operation of the video content providing apparatus 100 and may include a processor such as a CPU. The controller 140 may control other components included in the video content providing apparatus 100 to perform an operation corresponding to a user input received through the input/output unit 110 .

For example, the controller 140 may execute a program stored in the storage unit 130 , read a file stored in the storage unit 130 , or store a new file in the storage unit 130 .

Specific operations of the controller 140 will be further described below.

Hereinafter, a video content providing method performed by the controller 140 of the video content providing apparatus 100 step by step will be described in more detail with reference to the drawings.

As shown in FIG. 1 , the controller 140 may receive a video recommendation condition set from a user or a user's guardian and store it in the storage unit 130 as video recommendation condition information.

At this time, if the user's guardian sets the video recommendation conditions, the user's guardian may set the video recommendation conditions through the user's electronic terminal, and after the guardian authenticates that the user is the user's guardian through the user's electronic terminal, the guardian's Video recommendation conditions can also be set through the electronic terminal.

For example, when a guardian selects a video recommendation condition setting menu after executing an application for providing video content installed on the user's electronic terminal, the controller 140 may request the guardian to authenticate whether the guardian corresponds to the guardian. Accordingly, the guardian can set the video recommendation conditions, for example, through an adult authentication process. In addition, in order to change the set conditions, parental authentication may be performed again.

On the other hand, for example, when the guardian intends to set the video recommendation condition of the user corresponding to the protected person using the guardian's electronic terminal, the control unit 140 specifies the electronic terminal of the protected person or the user account of the protected person in the guardian's electronic terminal. After that, it is possible to set the video recommendation conditions through parental authentication. In addition, the controller 140 may cause the set video recommendation condition to be applied to the electronic terminal specified by the guardian or to the user account of the protector.

In this case, in order to set the video recommendation condition, the controller 140 may receive a tag composed of keywords registered by the guardian. In this case, keywords set as tags may be directly text input from the guardian, or may be registered as tags by receiving some of the keywords preferentially selected by the controller 140 from the guardian based on the personal information of the protector.

In addition, the controller 140 can list and display the registered tags so that the guardian can manage the tags. Accordingly, the guardian may register additional keywords as tags or delete unnecessary keywords among keywords already registered as tags.

As such, when a tag is registered for the protected person, the controller 140 may store the registered tag in the storage unit 130 as video recommendation condition information in association with the user account of the protected person. In addition, the controller 140 may provide a recommendation list including videos including tags included in the video recommendation condition information in the meta information or similar tags in the meta information to the user corresponding to the protected person.

Alternatively, the controller 140 includes only the videos including tags included in the video recommendation condition information in the meta information or similar tags in the meta information to the protector, and the other videos are included in the search result or recommendation list. can make it not happen.

Alternatively, when the video playback for the user is terminated and another video is automatically played, the controller 140 may automatically play only the videos including tags included in the video recommendation condition information in the meta information.

Through this, the guardian can preferentially provide the necessary videos to the protected person or prevent other videos from being provided.

Meanwhile, FIG. 2 is an exemplary diagram for explaining a method of providing video content according to an embodiment.

As shown in FIG. 2 , the controller 140 may allow a guardian to set video restriction conditions.

At this time, if the user's guardian sets the video restriction conditions, the user's guardian may set the video restriction conditions through the user's electronic terminal, and after the guardian authenticates that the user is the user's guardian through the user's electronic terminal, the guardian's Video restriction conditions can also be set through the electronic terminal.

For example, when a guardian selects a video restriction condition setting menu after executing an application for providing video content installed on a user's electronic terminal, the controller 140 may request the guardian to authenticate whether the guardian corresponds to the guardian. Accordingly, the guardian can set video restrictions through, for example, an adult authentication process. In addition, in order to change the set conditions, parental authentication may be performed again.

On the other hand, for example, when the guardian sets the video restriction condition of the user corresponding to the protected person using the guardian's electronic terminal, the control unit 140 specifies the electronic terminal of the protected person or the user account of the protected person in the guardian's electronic terminal. After that, you can set video restrictions through parental authentication. Accordingly, the control unit 140 may apply the video restriction condition to the specified electronic terminal or the user account of the protected person.

In this case, to set the video restriction condition, the control unit 140 may receive the registration of prohibited words composed of keywords from the guardian. In this case, the keywords set as prohibited words may be directly text input from the guardian, or may be registered as prohibited words by receiving some of the keywords that the controller 140 preferentially selects from the guardian based on the personal information of the protector.

In addition, the control unit 140 may list and display the registered prohibited words so that the guardian manages the prohibited words. Accordingly, the guardian may register additional keywords as prohibited words or delete unnecessary keywords from keywords already registered as prohibited words.

As such, when a prohibited word is registered for the subject, the controller 140 may store the registered prohibited word in the storage unit 130 as video restriction condition information in association with the user account of the protected person. In addition, the controller 140 may block videos including prohibited words included in the video restriction condition information in the meta information or videos including similar prohibited words in the meta information from being exposed to the protector.

Furthermore, according to an embodiment, the controller 140 may perform filtering again using prohibited words on the videos that have already undergone a filtering process according to a specific condition, so that only the remaining videos are provided to the user.

For example, the controller 140 may preferentially block videos classified as adult material or violent material, and may additionally block videos including a prohibited word, for example, a specific game name in meta information. In addition, the prohibited words may include the name or account name of a specific producer, and in this case, the controller 140 may prevent the videos registered with the producer or account name from being exposed.

In this case, the controller 140 may prevent a video including a prohibited word in the meta information from being included in a recommendation list or a search list, or may prevent a thumbnail of the video from being displayed or not played even if included. In this case, in order to prevent the thumbnail from being displayed, the controller 140 may overlap and display a separate layer on the thumbnail, for example.

Meanwhile, FIG. 3 is an exemplary diagram for explaining a method of providing video content according to an embodiment.

As shown in FIG. 3 , the controller 140 may set the number of videos that a person can watch during a certain period as a video restriction condition. Accordingly, the guardian can select the number of videos to limit the number of videos that the protector can watch within the selected range.

However, the number of videos is one embodiment, and video restriction conditions may be set in a manner that limits video viewing time, video capacity, and the like.

In addition, the controller 140 may store, in the storage unit 130 , the video restriction condition information set as such prohibited words or the number of videos in association with the account of the protected person.

Accordingly, the controller 140 determines the videos to be included in the recommended list or search list of videos to be provided to the user by referring to the prohibited words and tags. Among the videos, videos including a prohibited word in meta information may be excluded, and videos including keywords corresponding to tags may be preferentially arranged in a recommendation list or a search list.

In addition, the controller 140 may count the number of videos used by the user during a predetermined period, and may not exceed the number included in the video restriction condition. That is, when the number of videos viewed by the user during a certain period reaches the maximum viewable number set in the video limit condition, the controller 140 does not respond to the user's video playback request until the corresponding period elapses. can block

Furthermore, the controller 140 may provide a tag list set as a video recommendation condition to a user who is a protected user, so that one of the tags can be selected, so that videos corresponding to the tag selected by the user are immediately searched. can

Meanwhile, the controller 140 may display an alarm or stop playback of video content if it is determined that the distance between the electronic terminal and the user is close while the user watches the video by playing the video.

To this end, the controller 140 captures the front through the front camera provided in the electronic terminal, recognizes a person's face in the captured image, and determines that the user is close if the size of the recognized face area is greater than or equal to a preset size. You can output an alarm or stop playing video content.

Accordingly, if the user corresponds to the protected person, the video viewing time and distance may be limited, and playable video content may also be limited according to conditions.

In relation to this, when it is determined that the user does not look at the output screen of the electronic terminal by tracking the recognized eyes, the controller 140 may stop the provided video content. In addition, the controller 140 identifies and tracks the recognized eyes, and when it is determined that the user is viewing the output screen of the electronic terminal, the provided video content may be played.

Also, the controller 140 may provide a reward to a user who is a protected person based on the distance at which the user views the video. For example, the distance from which a video is viewed may be the distance from the display of the electronic terminal to the user's eyes, or the distance from the display of the electronic terminal to the tip of the nose.

In this case, the reward is provided to induce the user to watch while maintaining a certain distance or more. The 'reward' refers to a reward so that the user can use it in a specific shopping mall or a specific site. The reward may be provided to the user in various forms, such as points, recharges, or reserves. In addition, the reward should be understood as a concept that includes all means of obtaining various economic benefits, such as points, coupons, reserves, discount benefits, badges, game items, cryptocurrency, and digital assets. Also, the reward may be a point used by an operating entity that provides video content. For example, the reward may be a currency used by YouTube, which is an operating entity.

Also, the controller 140 may provide a reward to the user based on at least one of a video viewing time and a distance. In this case, when a guardian and a protected person exist and the guardian watches the video, a reward can be provided to the user who is a protected person, and a reward can be provided to the user when the user watches the video without distinction between the protector and the protected person.

For example, the controller 140 may provide a reward to the user when a distance of a predetermined distance or more is maintained for a predetermined time or more to protect the user's eyesight. In this case, there may be various methods of setting a predetermined distance to protect the eyesight of a user who is a protector.

Also, for example, the controller 140 may calculate and give a reward by applying a different weight according to the viewing time or provide an additional reward. For example, the controller 140 may provide 1 point for viewing for 1 hour, 2 points for 2 hours of viewing, and 3 points for 3 hours of viewing to the user.

Alternatively, the controller 140 may provide a reward to the user in proportion to the viewing time of the users watching from a distance greater than or equal to a certain distance.

Alternatively, the controller 140 may provide a reward when the user changes the distance according to the suggestion when the suggested distance is presented to the user watching from a distance greater than or equal to a certain distance. For example, when a user who watched from a distance of about 20 cm is suggested to step back 10 cm, if the user follows it, a reward can be provided to the user.

Alternatively, the controller 140 may provide a reward to the user when a video matching a preset keyword is viewed from a distance greater than or equal to a certain distance. Alternatively, the controller 140 may provide a reward to the user in proportion to the user's viewing time when a video matching a preset keyword is viewed from a distance greater than or equal to a certain distance. In this case, for example, the preset keyword is related to an educational video, and may be English study, English fairy tale, and the like.

Alternatively, the controller 140 may deduct a reward provided to the user when a video including a prohibited word in meta information is viewed from a distance greater than or equal to a certain distance. Through this, it is possible to motivate not only to prevent a video containing a prohibited word in the meta information from being included in the recommended list or search list, but also to not watch a video containing a prohibited word in the meta information secondarily. . For example, the controller 140 may deduct a reward provided to the user when watching videos classified as adult or violent.

In relation to this, the controller 140 may provide a questionnaire to a non-protected user and set a distance for protecting the eyesight of the protected user based on a response of the non-protected user to the questionnaire.

For example, the questionnaire may include information about age, visual acuity, average viewing time, etc., and the control unit 140 gives a score according to the responses to each questionnaire, and protects the user's eyesight based on the summed score. You can set the distance for For example, if the score is greater than or equal to a predetermined score, a preset distance may be set, and if the score is less than a predetermined score, the distance for eye protection may be set larger than the preset distance.

In addition, the controller 140 may perform a normal eyesight test on the user who is the protector, and set a distance for protecting the eyesight of the user who is the protector based on the result of the performed eye test.

For example, in relation to a method of performing an eyesight test, the controller 140 may guide the test to be performed at a distance of 1.5 m apart. Thereafter, the controller 140 may display the characters and figures of the corresponding mark in the order of the time table, and may display the targets 0.1 to 2.0 at regular time intervals. The control unit may determine the target corresponding to the character or figure that the user has identified through voice input or character input as the current visual acuity.

Or, for example, in relation to a method of performing an eye test, the control unit 140 primarily displays a character or figure and reduces the size of the character or figure, according to a voice or text input from the user. It may be determined whether the corresponding character or figure can be identified, and the visual acuity corresponding to the identified size may be determined as the user's current visual acuity.

In relation to this, FIG. 4 is a flowchart illustrating a content providing method according to an exemplary embodiment.

Referring to FIG. 4 , in step S410 , the controller 140 takes a picture of a user's face looking at the display of the electronic terminal in order to view video content through the front camera provided in the electronic terminal. Thereafter, in step S420 , the controller 140 recognizes a face of a person in the captured image. Thereafter, in step S430 , the controller 140 estimates the age based on the recognized face of the person. Thereafter, in step S440 , the controller 140 may set a distance for protecting the user's eyesight according to the estimated age.

In this case, big data deep learning may be used to derive the age based on the recognized person's face.

5 is a flowchart illustrating a method of deriving an age based on a recognized face of a person.

Referring to FIG. 5 , in step S510 , the controller 140 may perform face region detection and eye region detection using the Adaboost algorithm, and each of the eyes is the center point of each eye detected using the Adaboost algorithm. can determine the center coordinates of In this case, when the detection of the face region or the detection of the eye region is not successful, the controller 140 may end the age estimation for the corresponding face image. That is, the controller 140 determines whether or not a face is present in the input face image, and attempts to detect the face because it exists, but if the face region detection fails, the age estimation for the face image may be terminated. In addition, although the controller 140 detects an eye region from the detected face region, when the detected eye region is covered by a hair shadow or the image quality of the input face image is low, a detection error occurs and the accuracy of age estimation is reduced Therefore, the age estimation for the corresponding face image can be terminated.

Thereafter, in step S520 , the controller 140 corrects the rotated face image due to a person's natural facial posture. This is because if the faces are not aligned, the result of age estimation may not be good. The controller 140 may correct the rotation of the face image so that the line segment connecting the centers of both eyes is horizontal. At this time, the controller 140 calculates the angle formed by the line segment connecting the centers of both eyes and the horizontal line, and rotates the face image by the calculated angle so that the line segment connecting the centers of the eyes is horizontal to correct the rotation of the face image. can In relation to this, the controller 140 measures the inclination of a straight line connecting the detected centers of both eyes and performs in-plane rotation correction by the angle of Equation 1 below.

는 오른 눈의 위치 좌표,

는 왼 눈의 좌표를 나타낸다.here,

is the position coordinate of the right eye,

represents the coordinates of the left eye.

Thereafter, in step S530 , the controller 140 re-detects the face region from the rotation-corrected face image. In this case, the controller 140 redefines the face region in the face image so that the background element unnecessary for age estimation is minimized and re-detects the face region.

Thereafter, in step S540 , the controller 140 divides the detected face region into a plurality of blocks and extracts image pixel values for each block as histogram characteristics. The controller 140 divides the redefined face region into sub-blocks and extracts characteristics using a local binary pattern (LBP) that is normally used for each block. The control unit 140 generates one histogram characteristic by combining the histogram characteristics as many as the number of sub-blocks in this way.

Thereafter, in step S550 , the controller 140 fuses a plurality of single-level LBP characteristics with different numbers of sub-blocks to obtain a texture characteristic for the entire region by a multi-level local binary pattern (MLBP). create

Thereafter, in step S560 , the controller 140 extracts the texture characteristics of a partial region, such as wrinkles in the face region, through Gabor filtering. The controller 140 defines a plurality of wrinkle regions based on the eye position in order to extract the wrinkle characteristics of a partial region, and extracts a high frequency component by convolving Gabor filtering on the defined wrinkle region. Thereafter, the controller 140 uses the average and standard deviation of the filtered image as the extracted wrinkle characteristics. In this case, step S560 may be performed simultaneously with step S550.

Then, in step S560, the control unit 140 normalizes the characteristic by MPBP and the characteristic by Gabor filtering and concatenates to generate a final characteristic in which the features of the entire region of the face region and the features of some regions are combined. .

Thereafter, in step S570 , the controller 140 reduces the data dimension by using the combined characteristics using principal component analysis (PCA). This is because, when the LBP feature is created, the face region is divided into several partial regions, so the dimension of the LBP feature increases as well as the continuous LBP feature dimension is included in the MLBP feature to increase the final feature dimension. When the dimension of the data is high, the controller 140 may take a lot of time to process the data and may estimate the age with low accuracy.

Thereafter, in step S580 , the controller 140 estimates the age from the dimension-reduced characteristics. The controller 140 generates training data in which the relationship between the age characteristic and the verification age is formed by training the data. The controller 140 may select a support vector suitable for the type of kernel, its parameters, input values, and verification age using the generated training data, and stores the training data to be used when estimating the age for a new input value thereafter. do.

Thereafter, in step S580 , the controller 140 may set a distance for protecting the user's eyesight according to the estimated age. For example, when the estimated age is the age corresponding to the person to be protected, the controller 140 may appropriately set the distance for eyesight protection.

On the other hand, in the video content providing method provided by the above-described video content providing device 100, the user can be managed by dividing the user into a general user who has no viewing restrictions and a protected person whose viewing is partially restricted according to the setting of the guardian, or In one terminal, a protected mode and a normal mode may be distinguished. At this time, in order to distinguish the modes, the video content providing apparatus 100 may use a service according to the general mode through an authentication procedure. And it could be a way to receive an answer to this.

On the other hand, the control unit 140 captures the front through the front camera provided in the electronic terminal, recognizes human eyes in the captured image, and controls the provided video content based on the result of tracking the recognized eyes. can

In addition, the video content providing apparatus 100 may block videos classified as adult material by sexuality or violence in the protected mode, and additionally block the video according to other prohibited words. In addition, in the protected mode, a recommended video may be preferentially displayed based on a tag or only a video corresponding to the tag may be exposed, and the viewing time may be limited according to settings. Conversely, in normal mode, these restrictions may not be applied.

The video content providing method includes steps that are time-series processed by the video content providing apparatus 100 . Accordingly, even if omitted below, the above-described content regarding the video content providing apparatus 100 may also be applied to the video content providing method according to the embodiment.

In addition, the terms "... unit" and "... module" described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software.

The term '~ unit' used in the above embodiments means software or hardware components such as field programmable gate array (FPGA) or ASIC, and '~ unit' performs certain roles. However, '-part' is not limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program patent code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables.

Functions provided in components and '~ units' may be combined into a smaller number of components and '~ units' or separated from additional components and '~ units'.

In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

The method for providing video content according to the embodiments described with reference to FIGS. 2 to 5 may also be implemented in the form of a computer-readable medium for storing instructions and data executable by a computer. In this case, the instructions and data may be stored in the form of program code, and when executed by the processor, a predetermined program module may be generated to perform a predetermined operation. In addition, computer-readable media can be any available media that can be accessed by a computer, and includes both volatile and nonvolatile media, removable and non-removable media. In addition, the computer-readable medium may be a computer recording medium, which is a volatile and non-volatile and non-volatile storage medium implemented in any method or technology for storage of information such as computer-readable instructions, data structures, program modules, or other data. It may include both volatile, removable and non-removable media. For example, the computer recording medium may be a magnetic storage medium such as HDD and SSD, an optical recording medium such as CD, DVD, and Blu-ray disc, or a memory included in a server accessible through a network.

Also, the method for providing video content according to the embodiments described with reference to FIGS. 2 to 5 may be implemented as a computer program (or computer program product) including instructions executable by a computer. The computer program includes programmable machine instructions processed by a processor, and may be implemented in a high-level programming language, an object-oriented programming language, an assembly language, or a machine language. . In addition, the computer program may be recorded in a tangible computer-readable recording medium (eg, a memory, a hard disk, a magnetic/optical medium, or a solid-state drive (SSD), etc.).

Accordingly, the method for providing video content according to the embodiments described with reference to FIGS. 2 to 5 may be implemented by executing the above-described computer program by a computing device. The computing device may include at least a portion of a processor, a memory, a storage device, a high-speed interface connected to the memory and the high-speed expansion port, and a low-speed interface connected to the low-speed bus and the storage device. Each of these components is connected to each other using various buses, and may be mounted on a common motherboard or in any other suitable manner.

Here, the processor may process a command within the computing device, such as for displaying graphic information for providing a Graphical User Interface (GUI) on an external input or output device, such as a display connected to a high-speed interface. Examples are instructions stored in memory or a storage device. In other embodiments, multiple processors and/or multiple buses may be used with multiple memories and types of memory as appropriate. In addition, the processor may be implemented as a chipset formed by chips including a plurality of independent analog and/or digital processors.

Memory also stores information within the computing device. As an example, the memory may be configured as a volatile memory unit or a set thereof. As another example, the memory may be configured as a non-volatile memory unit or a set thereof. The memory may also be another form of computer readable medium such as, for example, a magnetic or optical disk.

In addition, the storage device may provide a large-capacity storage space to the computing device. A storage device may be a computer-readable medium or a component comprising such a medium, and may include, for example, devices or other components within a storage area network (SAN), a floppy disk device, a hard disk device, an optical disk device, or a tape device, a flash memory, or other semiconductor memory device or device array similar thereto.

The above-described embodiments are for illustration, and those of ordinary skill in the art to which the above-described embodiments pertain can easily transform into other specific forms without changing the technical idea or essential features of the above-described embodiments. You will understand. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope to be protected through this specification is indicated by the claims described below rather than the above detailed description, and it should be construed to include all changes or modifications derived from the meaning and scope of the claims and their equivalents. .

100: video content providing device
110: input/output unit 120: communication unit
130: storage unit 140: control unit

Claims (14)

In the video content providing device,
a storage unit for storing a video providing program and data for selectively providing video content according to conditions set separately for each user;
A control unit for selectively providing a video according to a condition set separately for each user by executing the program,
The control unit is
An apparatus for providing a reward to the first user based on a distance at which the first user, who is a protected person, watches a video. According to claim 1,
The control unit is
The apparatus of providing a reward to the first user when maintaining a distance of a predetermined distance or more for a predetermined time or more to protect the eyesight of the first user. 3. The method of claim 2,
The control unit is
An apparatus for providing a questionnaire to a second user who is not a protected person to set a distance for eye protection of the first user based on a response of the second user to the questionnaire. 3. The method of claim 2,
The control unit is
An apparatus for performing an eyesight test for the first user's eyesight test, and setting a distance for eye protection of the first user based on a result of the performed eye test. 3. The method of claim 2,
The content providing device includes an electronic terminal,
The control unit is
For photographing the front through the front camera provided in the electronic terminal, recognizing a person's face from the captured image, estimating the age based on the recognized person's face, and protecting the user's eyesight according to the estimated age device to set the distance. According to claim 1,
The control unit is
A device for providing a reward to the first user when watching a video matching a preset keyword from a distance of a certain distance or more. A method for providing video content, the method comprising: selectively providing a video according to a condition separately set for each user by executing a video providing program that selectively provides video content according to a condition separately set for each user; and
A method comprising the step of providing a reward to the first user based on the distance from which the protected first user views the video. 8. The method of claim 7,
The step of providing the reward,
The step of providing a reward to the first user when the distance of a predetermined distance or more is maintained for a predetermined time or more to protect the eyesight of the first user. 9. The method of claim 8,
The step of providing the reward,
The method further comprising the step of providing a questionnaire to a second user who is not a protected person and setting a distance for eye protection of the first user based on the response of the second user to the questionnaire. 9. The method of claim 8,
Steps to provide rewards
The method further comprising the step of performing an eye examination for the first user who is a protector, and setting a distance for eye protection of the first user based on the result of the performed eye examination. 9. The method of claim 8,
The step of providing the reward,
photographing the front through a front camera provided in the electronic terminal;
Recognizing a person's face in the captured image;
estimating an age based on the recognized face; and
The method further comprising the step of setting a distance for eye protection of the user according to the estimated age. 8. The method of claim 7,
The step of providing the reward,
Comprising the step of providing a reward to the first user when watching a video matching a preset keyword from a distance of a certain distance or more. A computer-readable recording medium in which a program for executing the method according to claim 7 is recorded on a computer. A computer program stored in a medium for performing the method according to claim 7 performed by the video content providing device.

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