Myopia suppression system using safety-distance guidance between user mobile device and eyes

Abstract

The present invention provides a myopia suppression system using safety-distance guidance between a user mobile device and the eyes, comprising: the user mobile device, which includes a display unit for outputting images and text, photographs the face of a user so as to obtain a user face image, and obtains user feature points for the face of the user and the actual distance to the eyes of the user on the basis of a user iris image obtained by detecting the iris of the user; an analysis server for analyzing a user vision analysis result of and a user vision prediction result on the basis of the user feature points and the actual distance transmitted from the user mobile device; and a manager electronic device for setting the safety distance between the user mobile device and the eye of the user and transmitting same to the user mobile device, wherein, if the actual distance exceeds the safety distance, the user mobile device outputs a warning message through the display unit while reducing, to be lower than the resolution of the images and text output to the display unit, the resolution of images and text to be output to the display unit, and thus a safety distance control mode can be performed.

Description

Myopia suppression system by inducing a safe distance between the user's mobile device and the eyes

[0001] The present invention relates to a myopia suppression system that protects eye health by guiding the distance between the screen of a mobile device carried by a user and the eyes viewing it to a safe distance range.

[0002]

[0003] In general, a mobile device is a portable device that is portable and has one or more functions such as voice and video calling, input / output of information, and data storage.

[0004] Recently, with the popularization of smart devices such as smartphones, the functions of such portable devices have diversified, and they are evolving into comprehensive multimedia devices (multimedia players) equipped with complex functions such as taking pictures or videos, playing music or video files, playing games, and receiving broadcasts.

[0005] Since the display part of these mobile devices is limited in size, users have to hold the mobile device closer to their eyes, which increases eye fatigue and has a negative effect on eyesight.

[0006] Meanwhile, the amount of time spent on mobile devices by infants and children is gradually increasing, and the negative impact of mobile devices has already become a social issue. Therefore, there is a need to develop technology to slow the progression of myopia by encouraging users to maintain a safe distance between their eyes and mobile devices.

[0007]

[0008] (Patent Document 0001) Patent Publication No. 10-2013-0031120 (Published: March 28, 2013)

[0009]

[0010] The purpose of the present invention to solve the above problem is to provide a user with a myopia suppression system by inducing a safe distance between the user's mobile device and the user's eyes, which lowers the resolution of the display unit to blur the display and outputs a warning message when the actual distance between the user's eyes and the display unit of the user's mobile device exceeds the safe distance set by the administrator using iris recognition technology.

[0011] In addition, the purpose of the present invention to solve the above problem is to provide an administrator with a myopia suppression system by calculating the actual distance between the user's eyes and the display unit of the user's mobile device using iris recognition technology, and analyzing the user's eyesight analysis result and the user's eyesight prediction result based on the calculated actual distance and the user's stored eyesight, thereby inducing a safe distance between the user's mobile device and the eyes.

[0012] In addition, the purpose of the present invention to solve the above-mentioned problem is to provide a myopia suppression system by inducing a safe distance between a user's mobile device and the eyes, which applies a safe distance control mode only to pre-registered users using facial recognition technology.

[0013]

[0014] The technical problems to be solved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0015]

[0016] In order to achieve the above object, the present invention provides a system for suppressing myopia by inducing a safe distance between a user's mobile device and the eyes, comprising: a display unit that outputs images and text; a user's mobile device that photographs a user's face to obtain a user's face image and detects the user's iris and obtains user feature points for the user's face and an actual distance from the user's eyes based on the user's iris image; an analysis server that analyzes the user's vision analysis result and the user's vision prediction result based on the user feature points and the actual distance transmitted from the user's mobile device; and an administrator electronic device that sets a safe distance between the user's mobile device and the user's eyes and transmits the set to the user's mobile device; wherein, when the actual distance deviates from the safe distance, the user's mobile device lowers the resolution of an image text to be output on the display unit compared to the resolution of an image and text output on the display unit and outputs a warning message through the display unit, thereby performing a safe distance control mode.

[0017] In an embodiment of the present invention, the user portable device includes an information collection unit including a camera that captures the user's face to obtain the user facial image; and a facial recognition unit that extracts the user feature points for the user's face from the user facial image transmitted from the camera and transmits the extracted user feature points to the analysis server; and the facial recognition unit may be characterized in that it determines whether to perform the safety distance control mode based on a result of matching the user feature points with a plurality of pre-stored feature points extracted from facial images for an unspecified number of people.

[0018] In an embodiment of the present invention, the information collection unit may further include a camera sensor that detects the user's iris and acquires the user iris image, the facial recognition unit may generate a matching signal while transmitting a facial image including the pre-stored feature point to the analysis server when the user feature point matches any one of the plurality of pre-stored feature points, and the user's mobile device may further include an iris recognition unit that calculates an actual distance between the user's mobile device and the user's eye based on the user's iris image transmitted from the camera sensor; and a control unit that generates an operation signal according to the matching signal transmitted from the facial recognition unit and transmits the operation signal to the iris recognition unit so that the safety distance control mode is performed.

[0019] In an embodiment of the present invention, the iris recognition unit may be characterized in that, when receiving the operation signal transmitted from the control unit, the iris recognition unit transmits the actual distance to the analysis server according to the operation signal.

[0020] In an embodiment of the present invention, the actual distance (D R )Is, It can be characterized by being defined as (where, L0 = user's iris length, L1 = iris length in the iris image, LF = focal length)

[0021] In an embodiment of the present invention, the face recognition unit may generate a mismatch signal when the user feature point does not match the plurality of pre-stored feature points, and the control unit may generate a non-operation signal according to the non-match signal transmitted from the face recognition unit and transmit the non-operation signal to the iris recognition unit to control the operation of the iris recognition unit so that the safe distance control mode is not performed.

[0022] In an embodiment of the present invention, the manager electronic device transmits the input user's ID and eyesight to the analysis server, and the analysis server may include an information storage unit that stores a facial image including the pre-stored feature points transmitted from the facial recognition unit, the actual distance transmitted from the iris recognition unit, the user's ID and the user's eyesight transmitted from the manager electronic device; and an analysis unit that analyzes the user's eyesight analysis result and the user's eyesight prediction result based on the facial image including the pre-stored feature points, the actual distance, the user's ID, and the user's eyesight and transmits the results to the manager electronic device.

[0023] In an embodiment of the present invention, the manager electronic device may be characterized by outputting the user's vision analysis results including the actual distance, reading time, lighting, and outdoor light duration.

[0024]

[0025] The effect of the present invention according to the above configuration is that, when the actual distance between the user's eyes and the display unit of the user's mobile device exceeds the safety distance set by the administrator, the resolution of the display unit is lowered to display it blurrily and a warning message is output at the same time, thereby suppressing or slowing down the progression of myopia of the user using the user's mobile device.

[0026] In addition, the effect of the present invention according to the above configuration is that the iris recognition technology is used to calculate the actual distance between the user's eyes and the display unit equipped on the user's mobile device, and the calculated actual distance and the user's stored eyesight are analyzed based on the user's eyesight analysis results and the user's eyesight prediction results, thereby allowing the administrator (including the guardian) to manage the eyesight of infants, children, and adolescents.

[0027] In addition, the effect of the present invention according to the above configuration is that the safety distance control mode is provided only to registered users using facial recognition technology, thereby preventing inconvenience caused by the safety distance control mode being performed when used by users who do not need the safety distance adjustment function.

[0028]

[0029] The effects of the present invention are not limited to the effects described above, and should be understood to include all effects that can be inferred from the detailed description of the present invention or the composition of the invention described in the claims.

[0030]

[0031] FIG. 1 is a block diagram illustrating a myopia suppression system that induces a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention.

[0032] FIG. 2 is a conceptual diagram illustrating a myopia suppression system by inducing a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention.

[0033] FIG. 3 is a conceptual diagram illustrating a process in which a facial recognition unit included in a myopia suppression system that induces a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention recognizes the user's face.

[0034] FIG. 4 is a conceptual diagram illustrating a process in which an iris recognition unit included in a myopia suppression system for inducing a safe distance between a user's mobile device and the user's eyes according to an embodiment of the present invention calculates an actual distance between the user's mobile device and the user's eyes based on an iris image that detects the user's iris.

[0035]

[0036] A most preferred embodiment according to the present invention comprises: a user portable device including a display unit that outputs images and text, which captures a user's face to acquire a user's face image and acquires user feature points for the user's face and an actual distance from the user's eyes based on the user iris image that detects the user's iris; an analysis server that analyzes the user's vision analysis result and the user's vision prediction result based on the user feature points and the actual distance transmitted from the user portable device; and an administrator electronic device that sets a safety distance between the user portable device and the user's eyes and transmits the set to the user portable device; wherein, when the actual distance deviates from the safety distance, the user portable device outputs a warning message through the display unit while lowering the resolution of an image text to be output on the display unit lower than the resolution of an image and text output on the display unit, thereby executing a safety distance control mode.

[0037]

[0038] Hereinafter, the present invention will be described with reference to the attached drawings. However, the present invention can be implemented in various different forms and is therefore not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar parts have been designated with similar reference numerals throughout the specification.

[0039] Throughout the specification, when a part is said to be "connected (connected, contacted, or coupled)" to another part, this includes not only cases where it is "directly connected," but also cases where it is "indirectly connected" with another part in between. Furthermore, when a part is said to "include" a component, this does not exclude other components, but rather implies that it may include other components, unless otherwise specifically stated.

[0040] The terminology used herein is merely used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, it should be understood that the terms "comprises" or "has" indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0041] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0042]

[0043] FIG. 1 is a block diagram illustrating a myopia suppression system that induces a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention.

[0044] Referring to FIG. 1, a myopia suppression system by inducing a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention includes a user's mobile device (100), an analysis server (200), and an administrator electronic device (300).

[0045] FIG. 2 is a conceptual diagram illustrating a myopia suppression system by inducing a safe distance between a user's mobile device and the eyes according to one embodiment of the present invention.

[0046] Referring to FIGS. 1 and 2, the user's mobile device (100) acquires user feature points for the user's face and the actual distance from the user's eyes based on a facial image captured by capturing the user's face and an iris image detected by detecting the user's iris.

[0047] In particular, the user's mobile device (100) is capable of measuring the actual distance (D R ) exceeds the safety distance, the safety distance control mode is performed by lowering the resolution of the image and text to be output on the display unit (140) to a lower resolution than that of the image and text output on the display unit and outputting a warning message through the display unit (140).

[0048] The safe distance control mode starts when the application installed on the user's mobile device is operated, but as described below, it is not performed when the user's facial image captured after the application is operated does not match a plurality of previously stored facial images.

[0049] Here, the safe distance can be 30 cm.

[0050] Referring to FIG. 1, a user mobile device (100) includes an information collection unit (110), a camera sensor (112), a face recognition unit (120), an iris recognition unit (130), a display unit (140), and a control unit (150).

[0051] Referring to FIG. 1, the information collection unit (110) includes a camera (111) and a camera sensor (112).

[0052] The camera (111) captures a photo of the user's face to obtain a facial image.

[0053] For example, the camera (111) may be installed on the front of the user portable device (100) equipped with the display unit (140) or on the back of the user portable device (100) facing the display unit (140).

[0054] The above-mentioned camera (111) transmits the acquired facial image to the facial recognition unit (120).

[0055] The camera sensor (112) detects the user's iris and acquires an iris image.

[0056] The above-mentioned camera sensor (112) transmits the acquired iris image to the iris recognition unit (130).

[0057] Figure 3 is a conceptual diagram illustrating the process by which a facial recognition unit, included in a myopia suppression system that induces a safe distance between a user's mobile device and the user's eyes, recognizes the user's face, according to one embodiment of the present invention. While a portion of the face is covered as a protective measure to prevent personal information leakage through facial photographs, in reality, recognition is based on the entire face.

[0058] Referring to FIG. 3, the facial recognition unit (120) extracts user feature points for the user's face from a facial image transmitted from a camera (111) and transmits the extracted features to the analysis server (200).

[0059] Here, feature points are points that indicate specific parts of the user's face, such as the eyes, nose, mouth, eyebrows, and face shape.

[0060] These features have different distributions for each person, so they are used to recognize human faces.

[0061] Specifically, the facial recognition unit (120) determines whether to perform the safety distance control mode based on the result of matching a plurality of pre-stored feature points extracted from a facial image of an unspecified number of people with the user feature points.

[0062] More specifically, the facial recognition unit (120) stores facial images of multiple people and multiple feature points extracted from the facial images of multiple people.

[0063] Accordingly, the facial recognition unit (120) extracts user feature points from the user facial image transmitted from the camera (111) and matches the user feature points to a plurality of pre-stored feature points.

[0064] First, when a user feature point matches one of a plurality of pre-stored feature points, the facial recognition unit (120) transmits a facial image including the pre-stored feature point to the analysis server (200) and simultaneously generates a matching signal and transmits it to the control unit (150).

[0065] Meanwhile, the facial recognition unit (120) generates a mismatch signal and transmits it to the control unit (150) when the user's feature point does not match with a plurality of previously stored feature points.

[0066] FIG. 4 is a conceptual diagram illustrating a process in which an iris recognition unit included in a myopia suppression system for inducing a safe distance between a user's mobile device and the user's eyes according to an embodiment of the present invention calculates an actual distance between the user's mobile device and the user's eyes based on an iris image that detects the user's iris.

[0067] The iris recognition unit (130) determines the actual distance (D) between the user's mobile device (100) and the user's eye based on the iris image transmitted from the camera sensor (112). R ) is calculated.

[0068] Here, the actual distance (D R ) is the distance between the display unit (140) mounted on the front of the user's mobile device (100) and the user's eyes looking at the display unit (140), and is the shortest distance when the virtual line from the user's eyes to the display unit (140) and the display unit (140) are perpendicular.

[0069] Specifically, referring to Fig. 4, the actual distance (D R ) is defined by the following [Mathematical Formula 1], and at this time, the camera sensor (112) is located at the location shown as L1 in FIG. 4.

[0070] [Mathematical Formula 1]

[0071]

[0072] (where L0 = user's iris length, L1 = iris length in the iris image, and LF = focal length)

[0073] Specifically, the user's iris length (L0) is the actual diameter of the user's iris, the iris length (L1) in the iris image is the iris diameter in the iris image acquired from the camera sensor (112), and the focal length (LF) is the distance between the point where light rays parallel to the optical axis converge on the optical axis as they pass through the lens provided in the camera sensor (112) and the lens.

[0074] In addition, the iris length (L1) in the iris image mentioned in the above [Mathematical Formula 1] is defined by the following [Mathematical Formula 2].

[0075] [Equation 2]

[0076]

[0077] (Here, L1 = iris length in the iris image, N = number of pixels, R = pixel length)

[0078] Specifically, the number of pixels (N) is the number of pixels arranged in the diameter of the iris in the iris image, and the length of the pixel (R) is the length (unit: mm) for one pixel in the iris image acquired from the camera sensor (112).

[0079] The above iris recognition unit (130) receives an operation signal transmitted from the control unit (150) and determines the actual distance (D) according to the operation signal. R ) is transmitted to the analysis server (200).

[0080] As above, the iris recognition unit (130) measures the actual distance (D R ) is transmitted to the analysis server (200) when the user's facial image captured by the camera (111) matches one of a number of previously stored facial images.

[0081] Meanwhile, when the iris recognition unit (130) receives a non-operational signal transmitted from the control unit (150), it calculates the actual distance (D) according to the non-operational signal. R ) is not transmitted to the analysis server (200), thereby allowing the user to freely take a posture in which to look at the display unit (140).

[0082] As above, the iris recognition unit (130) measures the actual distance (D R ) is not transmitted to the analysis server (200) when the user's facial image captured by the camera (111) does not match with a plurality of previously stored facial images.

[0083] The display unit (140) outputs images and text.

[0084] The above-mentioned display unit (140) is the actual distance (D R ) exceeds the safety distance, the safety distance control mode is performed by outputting a warning message while lowering the resolution of the image and text to be output on the display unit (140) to a resolution lower than that of the image and text output on the display unit (140).

[0085] The control unit (150) generates an operation signal according to the matching signal transmitted from the facial recognition unit (120) and then transmits it to the iris recognition unit (130) to control the operation of the iris recognition unit (130) so that the safety distance control mode is performed.

[0086] Accordingly, the iris recognition unit (130) measures the actual distance (D R ) and then calculate the actual distance (D R ) is transmitted to the analysis server (200).

[0087] Meanwhile, the control unit (150) generates a non-operation signal according to a non-matching signal transmitted from the face recognition unit (120) and transmits it to the iris recognition unit (130) to control the operation of the iris recognition unit (130) so that the safety distance control mode is not performed.

[0088] Accordingly, the iris recognition unit (130) measures the actual distance (D R ) is not calculated and is not transmitted to the analysis server (200).

[0089] The analysis server (200) analyzes the user's vision analysis results and the user's vision prediction results based on the user's characteristic points and actual distance transmitted from the user's mobile device (100).

[0090] Referring to FIG. 1, the analysis server (200) includes an information storage unit (210) and an analysis unit (220).

[0091] The information storage unit (210) contains a facial image including pre-stored feature points transmitted from the facial recognition unit (120) and an actual distance (D) transmitted from the iris recognition unit (130). R ), stores the user's ID and user's eyesight transmitted from the administrator electronic device (300).

[0092] The analysis unit (220) includes a facial image including pre-stored feature points and an actual distance (D R ), the user's vision analysis results and the user's vision prediction results are analyzed based on the user's ID and the user's vision and transmitted to the administrator's electronic device.

[0093] Referring to FIGS. 1 and 2, the administrator electronic device (300) sets a safety distance between the user's mobile device (100) and the user's eyes and transmits it to the user's mobile device (100).

[0094] As mentioned earlier, the safety distance can be 30cm, but it can be changed and set by the administrator.

[0095] Additionally, the administrator electronic device (300) transmits the user's ID and eyesight entered by the administrator to the analysis server (200).

[0096] The above-mentioned manager electronic device (300) outputs the user's vision analysis results and the user's vision prediction results transmitted from the analysis unit (230).

[0097] Specifically, the administrator electronic device (300) outputs the user's vision analysis results including actual distance (reading distance) (cm), reading duration (reading duration) (min), illumination (lux), and outdoor sunshine duration (outdoor sunshine duration) (min).

[0098]

[0099] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0100] The scope of the present invention is indicated by the claims described below, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

Claims

1. A user portable device including a display unit that outputs images and text, and that captures a user's face to obtain a user's face image and detects the user's iris based on the user's iris image to obtain user feature points for the user's face and the actual distance from the user's eyes; An analysis server that analyzes the user's vision analysis results and the user's vision prediction results based on the user's characteristic points and the actual distance transmitted from the user's mobile device; and An administrator electronic device that sets a safety distance between the user's mobile device and the user's eyes and transmits the information to the user's mobile device; A myopia suppression system through inducing a safe distance between a user's mobile device and the eyes, characterized in that the user's mobile device performs a safe distance control mode by outputting a warning message through the display unit while lowering the resolution of the image and text to be output on the display unit compared to the resolution of the image and text output on the display unit when the actual distance exceeds the safe distance.

2. In paragraph 1, The above user's mobile device, An information collection unit including a camera that captures the user's face to obtain a user's facial image; and A facial recognition unit that extracts user feature points for the user's face from the user's facial image transmitted from the camera and transmits the extracted user feature points to the analysis server; A myopia suppression system through inducing a safe distance between a user's mobile device and the eyes, characterized in that the above facial recognition unit determines whether to perform the safe distance control mode based on the result of matching the user's feature points with a plurality of pre-stored feature points extracted from facial images of an unspecified number of people.

3. In paragraph 2, The above information collection unit further includes a camera sensor that detects the user's iris and acquires the user's iris image, The above facial recognition unit generates a matching signal while transmitting a facial image including the stored feature point to the analysis server when the user feature point matches one of the plurality of stored feature points. The above user's mobile device, An iris recognition unit that calculates the actual distance between the user's mobile device and the user's eye based on the user's iris image transmitted from the camera sensor; and A myopia suppression system through inducing a safe distance between a user's mobile device and the eyes, characterized in that it further includes a control unit that generates an operation signal according to the matching signal transmitted from the facial recognition unit and transmits it to the iris recognition unit to control the operation of the iris recognition unit so that the safe distance control mode is performed.

4. In paragraph 3, A myopia suppression system through inducing a safe distance between a user's mobile device and the eyes, characterized in that the iris recognition unit transmits the actual distance to the analysis server according to the operation signal when receiving the operation signal transmitted from the control unit.

5. In paragraph 3, The above actual distance (D R )Is, A myopia suppression system by inducing a safe distance between a user's mobile device and the eyes, characterized by being defined as follows. (where L0 = user's iris length, L1 = iris length in the iris image, and LF = focal length) 6. In paragraph 3, The above facial recognition unit generates a mismatch signal when the user feature point does not match the plurality of pre-stored feature points. A myopia suppression system through inducing a safe distance between a user's mobile device and the eyes, characterized in that the control unit generates a non-operation signal according to the non-matching signal transmitted from the face recognition unit and transmits the signal to the iris recognition unit to control the operation of the iris recognition unit so that the safe distance control mode is not performed.

7. In paragraph 3, The above-mentioned administrator electronic device transmits the user's ID and eyesight to the analysis server. The above analysis server, An information storage unit that stores a facial image including the stored feature points transmitted from the facial recognition unit, the actual distance transmitted from the iris recognition unit, the user's ID transmitted from the manager electronic device, and the user's eyesight; and A myopia suppression system by inducing a safe distance between a user's mobile device and the eyes, characterized by comprising an analysis unit that analyzes the user's vision analysis result and the user's vision prediction result based on the facial image including the stored feature points, the actual distance, the user's ID, and the user's vision and transmits the results to the administrator electronic device.

8. In paragraph 1, A myopia suppression system by inducing a safe distance between a user's mobile device and the eyes, characterized in that the above-mentioned manager electronic device outputs the user's vision analysis results including the actual distance, reading time, lighting, and outdoor light duration.

Images