WO2019237772A1

WO2019237772A1 - Light source control method and apparatus

Info

Publication number: WO2019237772A1
Application number: PCT/CN2019/077213
Authority: WO
Inventors: 姜欣; 付阳; 王云飞; 黄通兵
Original assignee: 北京七鑫易维信息技术有限公司
Priority date: 2018-06-14
Filing date: 2019-03-06
Publication date: 2019-12-19
Also published as: CN108762511A; CN108762511B

Abstract

Embodiments of the present application disclose a light source control method and apparatus. Whether a first light spot exists in an eye image is determined, the eye image being obtained by photographing an eye of a target object by an image collection system, and the first light spot being formed by reflecting light generated by a first light source into the image collection system by the cornea in the eye; and if it is determined that the first light spot does not exist in the eye image, a second light source can be turned on, so that light generated by the second light source is reflected by the cornea in the eye into the image collection system to form a second light spot, the second light source and the first light source being respectively located on two sides of the image collection system, and/or, the distance between the second light source and the image collection system is less than the distance between the first light source and the image collection system. The light generated by the second light source can be reflected by the cornea into the image collection system to form the second light spot in the eye image, so that the calculation of a fixation point is performed according to the second light spot and eye features, thereby improving the calculation accuracy of the fixation point.

Description

Method and device for controlling light source

Technical field

The present application relates to the field of image processing, and in particular, to a light source control method and device.

Background technique

Eye tracking technology refers to a technique for obtaining a user's gaze point by analyzing a user's eye movement. The mainstream technology mainly relies on the eye image based on the infrared frequency band to analyze the eye feature information, and then to obtain the user's gaze point.

In the prior art, a light spot can be formed by reflecting light on the cornea in the infrared frequency band, and combining the spot position and eye feature information in the eye image to determine the user's gaze point, but when the eye is closer to the image acquisition device, the light spot is easily lost , Resulting in inaccurate gaze point estimation.

Summary of the Invention

The embodiments of the present application provide a light source control method and device to solve the problem of inaccurate gaze point estimation in the prior art when the eye is closer to the image acquisition device.

A light source control method provided in an embodiment of the present application includes:

Determine whether there is a first light spot in the eye image; the eye image is obtained by shooting an eye of the target object through an image acquisition system, and the first light spot is the light generated by the first light source reflected by the cornea in the eye to Formed in the image acquisition system;

If not, turn on the second light source, so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition system to form a second light spot; the second light source is separate from the first light source Located on both sides of the image acquisition system, and / or, the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system.

Optionally, the first light source includes at least one infrared light source, and the second light source includes at least one infrared light source.

Optionally, the first light source includes a first infrared light source and a second infrared light source, and the first infrared light source and the second infrared light source are respectively disposed on two sides of the image acquisition system;

The second light source includes a third infrared light source and a fourth infrared light source, and the third infrared light source and the fourth infrared light source are respectively disposed on two sides of the image acquisition system.

Optionally, the image acquisition system includes at least two image acquisition devices; the eye image is obtained by photographing the eyes of the target object through a first image acquisition device, wherein a focal length of the first image acquisition device is less than or equal to The focal lengths of other image acquisition devices except the first image acquisition device in the image acquisition system are described.

Optionally, the method further includes:

Determine the distance between the target object and the image acquisition device according to the characteristics of the eye image, and if the distance is greater than or equal to a preset length, and the first light source is turned off, the first light source is turned on .

A light source control device provided in an embodiment of the present application includes:

A judging unit configured to judge whether a first light spot exists in an eye image; the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is light generated by a first light source passing through the eyes The cornea formed by reflection in the image acquisition system;

The second light source turning-on unit is configured to turn on the second light source if the judgment result of the judging unit is no, so that light generated by the second light source is reflected by the cornea in the eye to the image acquisition system to form a second Light spot; the second light source and the first light source are located on both sides of the image acquisition system, and / or, the distance between the second light source and the image acquisition system is smaller than the first light source and the The distance of the image acquisition system.

Optionally, the device further includes:

The first light source turning-on unit is configured to determine a distance between the target object and the image acquisition device according to a feature of the eye image. If the distance is greater than or equal to a preset length, the first light source is in an off state. , The first light source is turned on.

The light source control method and device provided in the embodiments of the present application determine whether a first light spot exists in an eye image, where the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is a first light source The generated light is reflected by the cornea in the eye to the image acquisition system. If it is determined that the first spot does not exist in the eye image, the second light source can be turned on so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition. A second light spot is formed in the system, wherein the second light source and the first light source are respectively located on two sides of the image acquisition system, and / or the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system. Because the missing light spot in the eye image is usually caused by the eye being closer to the image acquisition system, the light generated by the first light source cannot be reflected by the cornea in the eye, or cannot enter the image acquisition system normally after the corneal reflection in the eye. Therefore, when the first light spot does not exist in the eye image, the second light source is turned on, because the second light source is closer to the image acquisition system, and / or, the second light source and the first light source are located on both sides of the image acquisition system, respectively, Enable the light generated by the second light source to enter the image acquisition system through the corneal reflection in the eye smoothly, thereby forming a second light spot in the eye image, so as to calculate the fixation point according to the second light spot and eye characteristics, and improve the calculation of the fixation point accuracy.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely These are some of the embodiments described in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without paying creative labor.

FIG. 1 is a schematic diagram of forming a first light spot according to an embodiment of the present application; FIG.

FIG. 2 is a schematic diagram of a first light spot loss according to an embodiment of the present application; FIG.

3 is a flowchart of a light source control method according to an embodiment of the present application;

4 is a schematic diagram of forming a second light spot according to an embodiment of the present application;

5 is a schematic structural diagram of a light source and an image acquisition system according to an embodiment of the present application;

FIG. 6 is a structural block diagram of a light source control device according to an embodiment of the present application.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only These are part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The inventor of the present application has found through research that in the prior art, light in the infrared frequency band is reflected on the cornea and entered into an image acquisition device, and the eye image obtained by the image acquisition device photographing the eye includes a light spot, combining the position of the light spot and the eye The feature information can determine the user's gaze point. FIG. 1 is a schematic diagram of the formation of a first light spot provided by an embodiment of the present application. As shown in FIG. 1, the first light source 101 generates infrared light, forms a reflection point 103 on the cornea 102, and enters the image acquisition system 104 to cause the image acquisition system 104 to shoot. A first light spot exists in the obtained eye image, and the position of the first light spot in the eye image can refer to the position of the reflection point 103 on the cornea 102. The gaze point of the user may be determined according to the position of the first light spot and the characteristic information of the eyes, where the characteristic information of the eyes may be, for example, the position of the pupil center 106 of the eyes.

FIG. 2 is a schematic diagram of a first light spot loss provided by an embodiment of the present application. As shown in FIG. 2, when the eye is close to the image acquisition device, the first light source 101 generates infrared light, and a reflection point 103 is formed on the cornea 102 to reflect the light. The direction of the incident light and the direction of the incident light are related to the curvature center 105 of the cornea 102. At this time, because the reflection angle α is large, the reflection angle α is the line between the curvature center 105 and the reflection point 103 (the virtual line shown in the figure) and the first The included angle of the reflected light (the thick solid line shown in the figure) corresponding to the light source 101 cannot reflect the light smoothly into the image acquisition device, so the eye image captured by the image acquisition device does not include the first light spot, that is, the first light spot is lost. When the direction of the user's line of sight deviates from the setting position of the first light source 101, the light generated by the first light source 101 cannot irradiate the cornea 102 in the eye, and no reflected light can be generated, resulting in the loss of the first light spot. The estimation of the user's gaze point based on the eye image without the first spot is not accurate.

In order to solve the foregoing technical problems, embodiments of the present application provide a light source control method and device, which determine whether a first light spot exists in an eye image, where the eye image is obtained by shooting an eye of a target object through an image acquisition system. A light spot is formed by the light generated by the first light source reflecting through the cornea in the eye to the image acquisition system. If it is determined that the first light spot does not exist in the eye image, the second light source can be turned on so that the light generated by the second light source passes through the eye. Of the cornea is reflected into the image acquisition system to form a second light spot, wherein the second light source and the first light source are respectively located on both sides of the image acquisition system, and / or the distance between the second light source and the image acquisition system is smaller than the first light source and the image acquisition system The distance of the system. Because the missing light spot in the eye image is usually caused by the eye being closer to the image acquisition system, the light generated by the first light source cannot be reflected by the cornea in the eye, or cannot enter the image acquisition system normally after the corneal reflection in the eye. Therefore, when the first light spot does not exist in the eye image, the second light source is turned on, because the second light source is closer to the image acquisition system, and / or, the second light source and the first light source are located on both sides of the image acquisition system, respectively, Enable the light generated by the second light source to pass through the corneal reflection in the eye and enter the image acquisition system, thereby forming a second light spot in the eye image, so as to calculate the fixation point according to the second light spot and eye characteristics, and improve the calculation of the fixation point accuracy.

Various non-limiting embodiments of the present application will be described in detail below with reference to the drawings.

FIG. 3 is a flowchart of a light source control method according to an embodiment of the present application. As shown in FIG. 3, the method includes the following steps.

S101. Determine whether a first light spot exists in the eye image, and if not, perform S102.

The eye image is obtained by photographing the eyes of the target object through an image acquisition system. The image acquisition system may include at least one image acquisition device, and the image acquisition device may be an infrared camera, an infrared camera, etc. When irradiated, the image acquisition device can acquire light information in the infrared frequency band.

A first light spot may exist in the eye image. As shown in FIG. 1, the first light source 101 generates infrared light, and the reflection point 103 on the cornea 102 reflects into the image acquisition system 104, so that the eye image obtained by the image acquisition system 104 is captured. There is a first light spot in the image, that is, in the eye image, the position corresponding to the reflection point 103 is a bright spot, that is, the first light spot.

The first light source 101 includes at least one infrared light source, such as an infrared light emitting diode, an infrared laser with a lower power, or other light sources that can generate infrared light, and is used to illuminate the face and eyes of a target object. Infrared light It can be reflected by the cornea 102 into the image acquisition system 104, so that a first light spot is formed in the eye image captured by the image acquisition system.

When the eye is closer to the image acquisition system, the reflection angle α of the light generated by the first light source 101 on the cornea 102 is large, and the light corresponding to the first light source 101 is reflected by the cornea 102 and cannot enter the image acquisition system. The first light spot does not exist in the eye image captured by the system 104, and S102 may be performed at this time.

S102. Turn on the second light source to form a second light spot.

As an optional implementation manner, FIG. 4 is a schematic diagram of forming a second light spot according to an embodiment of the present application. As shown in FIG. 4, the second light source 107 and the first light source 101 may be on the same side of the image acquisition system 104. The distance between the two light sources 107 and the image acquisition system 104 may be smaller than the distance between the first light source 101 and the image acquisition system.

The second light source 107 includes at least one infrared light source, such as an infrared light emitting diode, an infrared laser with a lower power, or other light sources that can generate infrared light, and is used to illuminate the face and eyes of a target object to make an image The acquisition system 104 can capture the eyes of the target object and the light spot formed by the infrared light reflected on the cornea, and obtain characteristic information of the eyes of the target object.

Since the second light source 107 is closer to the image acquisition system 104, the infrared light generated by the second light source 107 is reflected on the reflection point 103 relative to the reflection angle α of the infrared light generated by the first light source 101 at the reflection point 103. The reflection angle β is small, where the reflection angle β is the angle between the line between the center of curvature 105 and the reflection point 103 (thin dashed line in the figure) and the reflected light (thick dashed line in the figure) corresponding to the second light source 107. The light corresponding to the two light sources 107 is reflected by the cornea 102 and can enter the image acquisition system 104, so that the image acquisition system 104 has a second light spot in the eye image captured when the second light source 107 illuminates the target object's eyes. The position of the second spot and the feature information of the eyes estimate the gaze point of the target object.

In addition, as another optional implementation manner, the second light source 107 and the first light source 101 may also be respectively located on two sides of the image acquisition system 104 (not shown in the figure). Specifically, a plane passing through the image acquisition system 104 and perpendicular to the line where the first light source 101 and the image acquisition system are located can be constructed. The plane divides the space into two sides of the image acquisition system 104, and the first light source 101 can be located in the image acquisition. The first side of the system 104 and the second light source 107 may be located on the second side of the image acquisition system 104.

In general, the first light spot is usually lost when the target object is closer to the image acquisition system 104 and the sight of the target object falls at a point away from the setting position of the first light source 101, the cornea 102 in the target object's eyes. As the line of sight deviates from the setting position of the first light source 101, the light generated by the first light source 101 on the first side of the image acquisition system 104 cannot directly irradiate the cornea 102 in the eyes of the target object, so there is no reflection Light appears in the image acquisition system 104, causing the first spot to be lost. If the second light source 107 provided on the second side of the image acquisition system 104 is turned on, since the second light source 107 and the first light source 101 are located on both sides of the image acquisition system, the cornea 102 in the target's eyes is deviated with the direction of the line of sight The setting position of the second light source 107. The light generated by the second light source 107 can directly irradiate the cornea 102 in the eyes of the target object and enter the image acquisition system 104 through reflection. At this time, a second light spot appears in the eye image, which is convenient. The calculation of the fixation point is performed according to the second light spot and the characteristics of the eye, thereby improving the accuracy of the fixation point calculation.

When the second light source 107 and the first light source 101 are located on both sides of the image acquisition system 104, the distance between the second light source 107 and the image acquisition system 104 may be smaller than the distance between the first light source 101 and the image acquisition system 104. The light from the two light sources 107 can be directly irradiated on the cornea 102 in the eyes of the target object, and the reflection angle is small, which is convenient for a second light spot to appear in the eye image.

When the second light source 107 and the first light source 101 are located on both sides of the image acquisition system 104, the distance between the second light source 107 and the image acquisition system 104 may also be greater than or equal to the distance between the first light source 101 and the image acquisition system 104. The cornea 102 in the eye of the target object is deviated to the setting position of the second light source 107 with the line of sight. The light generated by the second light source 107 can directly irradiate the cornea 102 in the eye of the target object and enter the image acquisition system 104 through reflection. A second flare appears in the eye image.

In specific implementation, FIG. 5 is a schematic structural diagram of a light source and an image acquisition system according to an embodiment of the present application. As shown in FIG. 5, the image acquisition system 104 may include a first image acquisition device 1041 and a second image acquisition device 1042. The eye image can be obtained by photographing the eyes of the target object by the first image acquisition device 1041, and the focal length of the first image acquisition device 1041 is less than or equal to other image acquisition devices in the image acquisition system 104 except the first image acquisition device 1041 , For example, the focal length of the first image acquisition device 1041 is smaller than or equal to the focal length of the second image acquisition device 1042.

The first light source 101 may include a first infrared light source 1011 and a second infrared light source 1012. The first infrared light source 1011 and the second infrared light source 1012 are respectively disposed on two sides of the image acquisition system 104. Accordingly, the second light source 107 may include The third infrared light source 1071 and the fourth infrared light source 1072, and the third infrared light source 1071 and the fourth infrared light source 1072 are respectively disposed on two sides of the image acquisition system 104.

When the first light source 101 is working, the first infrared light source 1011 and the second infrared light source 1012 may work at the same time, or only one of them may work. When the second light source 107 is working, the third infrared light source 1071 and the fourth infrared light source 1072 may work simultaneously. Work, or only one of them. When the second light source 107 is turned on, the first light source 101 may be turned off, or the first light source 101 may not be turned off.

When the first light spot formed by the first infrared light source 1011 reflected by the cornea 102 is lost, the third infrared light source 1071 on the same side as the first infrared light source 1011 may be turned on, or the fourth infrared light source on the different side from the first infrared light source 1011 may be turned on. Light source 1072, wherein the distance between the fourth infrared light source 1072 and the first image acquisition device 1041 may be smaller than the distance between the first infrared light source 1011 and the first image acquisition device 1041, or may be greater than or equal to the first infrared light source 1011 and the first image The distance of the acquisition device 1041; when the first light spot formed by the second infrared light source 1012 reflected by the cornea 102 is lost, the fourth infrared light source 1072 on the same side as the second infrared light source 1012 can be turned on, or the second infrared light source 1012 can be turned on The third infrared light source 1071 on a different side, wherein the distance between the third infrared light source 1071 and the first image acquisition device 1041 may be smaller than the distance between the second infrared light source 1012 and the first image acquisition device 1041, or may be greater than or equal to the second infrared The distance between the light source 1012 and the first image acquisition device 1041.

In the embodiment of the present application, the distance between the target object and the image acquisition system may also be determined according to the characteristics of the eye image. Specifically, the distance between the target object and the image acquisition system may be determined by the pupil diameter in the eye image. The distance between the target object and the image acquisition system can also be determined by the distance between the pupils in the eye image, and can also be determined by the characteristics of other eye images, and no examples are given here.

For example, if the pupil diameter is less than or equal to the preset diameter, it means that the distance between the target object and the image acquisition system is far, and at this time, it can be determined that the distance between the target object and the image acquisition system is greater than or equal to the preset length. Alternatively, if the distance between the pupils is less than or equal to a preset distance, it can be determined that the distance between the target object and the image acquisition system is greater than or equal to a preset length.

When the distance between the target object and the image acquisition system is greater than or equal to the preset length, if the first light source 101 is turned off, the first light source 101 may be turned on.

An embodiment of the present application provides a method for controlling a light source, by determining whether a first light spot exists in an eye image, where the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is generated by the first light source The light is formed by reflecting the cornea in the eye into the image acquisition system. If it is determined that there is no first light spot in the eye image, the second light source can be turned on so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition system. A second light spot is formed, wherein the second light source and the first light source are respectively located on two sides of the image acquisition system, and / or the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system. Because the missing light spot in the eye image is usually caused by the eye being closer to the image acquisition system, the light generated by the first light source cannot be reflected by the cornea in the eye, or cannot enter the image acquisition system normally after the corneal reflection in the eye. Therefore, when the first light spot does not exist in the eye image, the second light source is turned on, because the second light source is closer to the image acquisition system, and / or, the second light source and the first light source are located on both sides of the image acquisition system, respectively, Enable the light generated by the second light source to pass through the corneal reflection in the eye and enter the image acquisition system, thereby forming a second light spot in the eye image, so as to calculate the fixation point according to the second light spot and eye characteristics, and improve the calculation of the fixation point accuracy.

Based on the light source control method provided by the above embodiments, the embodiment of the present application further provides a light source control device. The working principle is described in detail below with reference to the accompanying drawings.

FIG. 6 is a structural block diagram of a light source control device according to an embodiment of the present application. As shown in FIG. 6, the device includes:

The determining unit 110 is configured to determine whether a first light spot exists in an eye image; the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is light generated by a first light source through the light source. Formed by the cornea in the eye reflecting into the image acquisition system;

The second light source turning-on unit 120 is configured to turn on the second light source if the determination result of the determining unit is no, so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition system to form a first Two light spots; the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system.

Optionally, the device further includes:

An embodiment of the present application provides a light source control device, which determines whether a first light spot exists in an eye image, where the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is generated by the first light source The light is formed by reflecting the cornea in the eye into the image acquisition system. If it is determined that there is no first light spot in the eye image, the second light source can be turned on so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition system. A second light spot is formed, wherein the second light source and the first light source are respectively located on two sides of the image acquisition system, and / or the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system. Because the missing light spot in the eye image is usually caused by the eye being closer to the image acquisition system, the light generated by the first light source cannot be reflected by the cornea in the eye, or cannot enter the image acquisition system normally after the corneal reflection in the eye. Therefore, when the first light spot does not exist in the eye image, the second light source is turned on, because the second light source is closer to the image acquisition system, and / or, the second light source and the first light source are located on both sides of the image acquisition system, respectively, Enable the light generated by the second light source to pass through the corneal reflection in the eye and enter the image acquisition system, thereby forming a second light spot in the eye image, so as to calculate the fixation point according to the second light spot and eye characteristics, and improve the calculation of the fixation point accuracy.

When introducing elements of various embodiments of the present application, the articles "a," "an," "the," and "said" are intended to mean that there are one or more of the elements. The words "including," "including," and "having" are all inclusive and mean that there may be additional elements other than the listed elements.

It should be noted that a person of ordinary skill in the art can understand that the implementation of all or part of the processes in the foregoing method embodiments can be completed by using a computer program to instruct related hardware. The program can be stored in a computer-readable storage In the medium, when the program is executed, it may include the processes of the foregoing method embodiments. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM).

Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments. In particular, as for the device embodiment, since it is basically similar to the method embodiment, it is described relatively simply, and the relevant part may refer to the description of the method embodiment. The device embodiments described above are merely schematic, and the units and modules described as separate components may or may not be physically separated. In addition, some or all of the units and modules may be selected according to actual needs to achieve the objective of the solution of this embodiment. Those of ordinary skill in the art can understand and implement without creative efforts.

The above description is only a specific implementation of the present application. It should be noted that, for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and retouching can be made. These improvements and retouching also It should be regarded as the scope of protection of this application.

Claims

A light source control method, the method includes:

Determine whether there is a first light spot in the eye image; the eye image is obtained by shooting an eye of the target object through an image acquisition system, and the first light spot is the light generated by the first light source reflected by the cornea in the eye to Formed in the image acquisition system;

If not, turn on the second light source, so that the light generated by the second light source is reflected by the cornea in the eye to the image acquisition system to form a second light spot; the second light source is separate from the first light source Located on both sides of the image acquisition system, and / or, the distance between the second light source and the image acquisition system is smaller than the distance between the first light source and the image acquisition system.
The method of claim 1, wherein the first light source comprises at least one infrared light source and the second light source comprises at least one infrared light source.
The method according to claim 2, wherein the first light source comprises a first infrared light source and a second infrared light source, and the first infrared light source and the second infrared light source are respectively disposed in two of the image acquisition system. side;

The second light source includes a third infrared light source and a fourth infrared light source, and the third infrared light source and the fourth infrared light source are respectively disposed on two sides of the image acquisition system.
The method according to any one of claims 1 to 3, wherein the image acquisition system includes at least two image acquisition devices; the eye image is obtained by photographing the eyes of the target object through a first image acquisition device, wherein The focal length of the first image acquisition device is less than or equal to the focal length of other image acquisition devices in the image acquisition system except the first image acquisition device.
The method according to any one of claims 1 to 3, wherein the method further comprises:

Determine the distance between the target object and the image acquisition device according to the characteristics of the eye image, and if the distance is greater than or equal to a preset length, and the first light source is turned off, the first light source is turned on .
A light source control device, the device includes:

A judging unit configured to judge whether a first light spot exists in an eye image; the eye image is obtained by shooting an eye of a target object through an image acquisition system, and the first light spot is light generated by a first light source passing through the eyes The cornea formed by reflection in the image acquisition system;

The second light source turning-on unit is configured to turn on the second light source if the judgment result of the judging unit is no, so that light generated by the second light source is reflected by the cornea in the eye to the image acquisition system to form a second Light spot; the second light source and the first light source are located on both sides of the image acquisition system, and / or, the distance between the second light source and the image acquisition system is smaller than the first light source and the The distance of the image acquisition system.
The apparatus of claim 6, wherein the first light source includes at least one infrared light source, and the second light source includes at least one infrared light source.
The device according to claim 7, wherein the first light source comprises a first infrared light source and a second infrared light source, and the first infrared light source and the second infrared light source are respectively disposed in two of the image acquisition system. side;

The second light source includes a third infrared light source and a fourth infrared light source, and the third infrared light source and the fourth infrared light source are respectively disposed on two sides of the image acquisition system.
The apparatus according to any one of claims 6 to 8, wherein the image acquisition system includes at least two image acquisition devices; the eye image is obtained by photographing an eye of a target object through a first image acquisition device, wherein The focal length of the first image acquisition device is less than or equal to the focal length of other image acquisition devices in the image acquisition system except the first image acquisition device.
The device according to any one of claims 6 to 8, wherein the device further comprises:

The first light source turning-on unit is configured to determine a distance between the target object and the image acquisition device according to a feature of the eye image. If the distance is greater than or equal to a preset length, the first light source is in an off state. , The first light source is turned on.
A storage medium comprising a stored program, wherein when the program is run, a device where the storage medium is located is controlled to perform the light source control method according to any one of claims 1 to 5.
A device including a memory and a processor,

A computer program is stored in the memory;

The processor is configured to execute a computer program stored in the memory, and when the computer program runs, the light source control method according to any one of claims 1 to 5 is executed.