CN112866541A - Device control method and electronic device - Google Patents
Device control method and electronic device Download PDFInfo
- Publication number
- CN112866541A CN112866541A CN201911099129.1A CN201911099129A CN112866541A CN 112866541 A CN112866541 A CN 112866541A CN 201911099129 A CN201911099129 A CN 201911099129A CN 112866541 A CN112866541 A CN 112866541A
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- electronic device
- upper cover
- lens
- glass upper
- control method
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
- H04N23/611—Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/61—Control of cameras or camera modules based on recognised objects
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
Abstract
A device control method and an electronic device are provided. The device control method is used for controlling the electronic device. The electronic device is provided with a ground glass upper cover and an image acquisition device. The device control method includes: in a preset state, the upper cover of the ground glass shields the lens of the image acquisition device; detecting brightness change by the lens through the ground glass upper cover; and triggering the electronic device to execute preset operation according to the brightness change.
Description
Technical Field
The present invention relates to a device control technology, and more particularly, to a device control method and an electronic device.
Background
Face recognition technology has been widely used for user authentication of electronic devices such as smart phones and notebook computers. However, in order to use the instant face recognition function, the image recognition module on the electronic device needs to be kept in the activated state at any time, which increases the power consumption of the electronic device. Although some electronic devices may additionally detect the approach of a user by a proximity sensor (proximity sensor) or activate the image recognition module by detecting an input operation such as a user touching a screen, the proximity sensor is expensive, and the image recognition module is also passive to use by being manually activated.
Disclosure of Invention
The invention provides a device control method and an electronic device, which can provide better device performance and/or improve user experience by using an image recognition technology which is used by matching a frosted glass upper cover with the electronic device, wherein the frosted glass upper cover is cheaper in price.
An embodiment of the present invention provides a device control method for controlling an electronic device. The electronic device is provided with a ground glass upper cover and an image acquisition device. The device control method includes: in a preset state, the upper cover of the ground glass shields the lens of the image acquisition device; detecting brightness change by the lens through the ground glass upper cover; and triggering the electronic device to execute preset operation according to the brightness change.
The embodiment of the invention further provides an electronic device, which comprises a ground glass upper cover, an image acquisition device and a processor. The processor is coupled to the image acquisition device. And in a preset state, the ground glass upper cover is used for shielding the lens. The lens is used for detecting brightness change through the ground glass upper cover. The processor is used for controlling the electronic device to execute preset operation according to the brightness change.
Based on the above, in the preset state, the frosted glass upper cover on the electronic device can shield the lens of the image acquisition device. The lens can detect brightness change through the frosted glass upper cover. Then, the electronic device can be triggered to execute a preset operation according to the brightness change. Thereby, better device performance and/or improved user experience may be provided.
Drawings
Fig. 1 is a functional block diagram of an electronic device according to an embodiment of the invention.
Fig. 2 is an external view of an electronic device according to an embodiment of the invention.
Fig. 3 is a schematic diagram illustrating a lens according to an embodiment of the invention receiving light through a ground glass upper cover.
Fig. 4 is a schematic diagram of an input interface according to an embodiment of the invention.
Fig. 5 is a schematic diagram of a moving ground glass upper cover according to an embodiment of the invention.
Fig. 6 is a schematic diagram illustrating a lens system according to an embodiment of the invention, wherein light is not received by a frosted glass upper cover.
Fig. 7 is a schematic diagram of a target image according to an embodiment of the invention.
Fig. 8 is a flowchart illustrating a device control method according to an embodiment of the invention.
Fig. 9 is a flowchart illustrating a device control method according to an embodiment of the invention.
Wherein:
10: an electronic device;
11: covering the ground glass;
12: an image acquisition device;
13: a processor;
21: a lens;
301. 601, a step of: light rays;
41: inputting an interface;
501: direction;
71: a target image;
s801 to S803, S901 to S908: and (5) carrying out the following steps.
Detailed Description
Fig. 1 is a functional block diagram of an electronic device according to an embodiment of the invention. Referring to fig. 1, an electronic device 10 includes a ground glass upper cover 11, an image capturing device 12, and a processor 13. The ground glass upper cover 11 includes a light-permeable glass upper cover. For example, the light permeable material of the frosted glass upper cover 11 may include frosted glass, frosted glass and/or sand-blasted glass. After the light irradiates the frosted glass upper cover 11, the light passing through the frosted glass upper cover 11 can be scattered and diffused. Compared with the common transparent glass, if the lens is disposed behind the frosted glass upper cover 11, the external image captured by the lens through the frosted glass upper cover 11 is often blurred.
The image capturing device 12 is used for capturing external images. For example, the image capturing device 12 may include at least one lens and at least one photosensitive element. The image capturing device 12 can be used to capture external images through the lens and the photosensitive element. For example, the image capturing device 12 may include at least one camera built into the electronic device 10.
The processor 13 is coupled to the image capturing device 12. In one embodiment, the processor 13 may be configured to control the image capturing device 12. In one embodiment, if the frosted glass top cover 11 is movable, the processor 13 may also be coupled to the frosted glass top cover 11 and control the movement of the frosted glass top cover 11. In one embodiment, the processor 13 may also be used to control the overall or partial operation of the electronic device 10. For example, the Processor 13 may include a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), or other Programmable general purpose or special purpose microprocessor, Digital Signal Processor (DSP), Programmable controller, Application Specific Integrated Circuit (ASIC), Programmable Logic Device (PLD), or other similar devices or combinations thereof.
In one embodiment, the electronic device 10 further includes various electronic components such as a storage circuit, an input/output interface and/or a power circuit, which is not limited in the present invention. For example, the input/output interface may include a screen, a touch screen, a keyboard, a mouse, a touch pad, a speaker, a microphone, a wired communication interface card, and/or a wireless communication interface card, etc., which are not limited by the present invention.
In one embodiment, the frosted glass cover 11 can cover the lens of the image capturing device 12 in a predetermined state. The lens of the image capturing device 12 can detect the brightness variation through the frosted glass top cover 11. The brightness variation is, for example, the brightness variation of the image collected through the frosted glass upper cover 11. Then, the processor 13 may trigger the electronic device 10 to perform a preset operation according to the brightness variation.
In the following embodiments, a notebook computer is taken as an example of the electronic device 10 in fig. 1. However, in other embodiments, the electronic device 10 of fig. 1 may also be an electronic device such as a desktop computer, an industrial computer, a tablet computer, or a smart phone, which is configured with the frosted glass top cover 11 and the image capturing device 12, and the invention is not limited thereto.
Fig. 2 is an external view of an electronic device according to an embodiment of the invention. Referring to fig. 2, a notebook computer is taken as an example of the electronic device 10, and the lens 21 is shielded by the frosted glass top cover 11 in a predetermined state. When the lens 21 is shielded by the ground glass upper cover 11, the lens 21 can capture an external image through the ground glass upper cover 11.
Fig. 3 is a schematic diagram illustrating a lens according to an embodiment of the invention receiving light through a ground glass upper cover. Referring to fig. 3, when the lens 21 is shielded by the ground glass cover 11, the light 301 passes through the ground glass cover 11 and is received by the lens 21. Therefore, compared with the image captured when the lens 21 is not covered by the ground glass upper cover 11, the captured image is blurred when the lens 21 is covered by the ground glass upper cover 11. For example, if there is an object in front of the lens 21, the contour of the object is blurred and unclear in the image captured through the frosted glass upper cover 11.
In one embodiment, after the lens 21 captures an external image through the frosted glass cover 11, the processor 13 may analyze the external image to obtain a brightness variation of the external image. The processor 13 may determine whether the brightness variation meets a preset condition. If the brightness variation meets the preset condition, the processor 13 may trigger the electronic device 10 to perform a preset operation in response to the brightness variation meeting the preset condition. However, if the brightness variation does not meet the preset condition, the processor 13 may not perform the preset operation.
In one embodiment, the processor 13 may analyze the external image to obtain the brightness information of at least one pixel in the external image. For example, each pixel may have a luminance value. If the variation range of the brightness value of at least one predefined pixel in the external image exceeds a preset range, the processor 13 may determine that the brightness variation meets a preset condition. In addition, if the variation range of the brightness value of at least one predefined pixel point does not exceed the preset range, the processor 13 may determine that the brightness variation does not meet the preset condition.
In one embodiment, whether the brightness variation meets the predetermined condition is used to detect whether a user approaches and/or prepares to operate the electronic device 10. For example, in the predetermined states of fig. 2 and 3, when the user approaches and/or prepares to operate the electronic device 10, the face or hand of the user may block at least a portion of the light 301 originally received by the lens 21, resulting in a decrease in the brightness value of at least one predefined pixel in the captured external image. If the brightness value of the pixel point decreases to exceed the predetermined range, the processor 13 may determine that a user is approaching and/or preparing to operate the electronic device 10 and automatically perform the predetermined operation.
In one embodiment, the preset operation includes switching the operation mode of the electronic device 10. In one embodiment, switching the operating mode of the electronic device 10 includes waking up the electronic device 10 from a sleep (e.g., S3), hibernation, or idle state. In one embodiment, switching the operational mode of the electronic device 10 includes unlocking the electronic device 10 from a locked state.
In an embodiment, after switching the operation mode of the electronic device 10, the processor 13 may receive the verification information through at least one input interface of the electronic device 10. The processor 13 may then perform login authentication based on this authentication information.
Fig. 4 is a schematic diagram of an input interface according to an embodiment of the invention. Referring to fig. 4, in an embodiment, after determining to perform the predetermined operation, the input interface 41 may be presented on a display of the electronic device 10. The input interface 41 may prompt the user to enter authentication information (e.g., an account number and/or password). The processor 13 may receive authentication information input by the user via the input interface 41 and perform login authentication. During the login verification, the processor 13 may compare the verification information with the preset information in the database. If the comparison result is a match, the processor 13 may determine that the verification information is verified and switch the electronic device 10 to the login state corresponding to the verification information. In addition, if the comparison result is not matched, the processor 13 may determine that the verification information is not verified and maintain the electronic device 10 in the non-logged state (e.g., the locked state).
In one embodiment, the ground glass upper cover 11 is movable. Taking fig. 2 as an example, in a predetermined state, the ground glass upper cover 11 can move to a position where the lens 21 can be shielded. After leaving the preset state, the ground glass upper cover 11 may be moved to a position not to shield the lens 21 to expose the lens 21.
Fig. 5 is a schematic diagram of a moving ground glass upper cover according to an embodiment of the invention. Please refer to
In fig. 5, after leaving the predetermined state, the ground glass upper cover 11 can move along the direction 501 to a position not covering the lens 21, so as to expose the lens 21. After exposing the lens 21, the lens 21 may capture an external image without passing through the ground glass upper cover 11.
Fig. 6 is a schematic diagram illustrating a lens system according to an embodiment of the invention, wherein light is not received by a frosted glass upper cover. Referring to fig. 6, after the ground glass upper cover 11 is moved along the direction 501, the exposed lens 21 can directly receive the light 601. Compared to the embodiment of fig. 3, the external image obtained by receiving the light 601 may have a clearer object image and object contour.
In one embodiment, the preset operation includes an operation of moving the ground glass upper cover 11. For example, in one embodiment, after determining that the brightness variation meets the preset condition, the processor 13 may control the ground glass cover 11 to move along the direction 501 to expose the lens 21. In one embodiment, moving the ground glass upper cover 11 to the position where the lens 21 is exposed can be regarded as leaving the predetermined state.
In one embodiment, the preset operation further includes capturing a target image through the lens 21 and performing face recognition based on the target image after moving the ground glass cover 11 to expose the lens 21 (i.e., after leaving the preset state). Compared with the image collected by the frosted glass upper cover 11 in the preset state, the object in the target image can have a clearer image contour because the target image is not collected by the frosted glass upper cover 11.
Fig. 7 is a schematic diagram of a target image according to an embodiment of the invention. Referring to fig. 7, in an embodiment, after leaving the predetermined state, the captured target image 71 may include a face image of the user. The sharpness of the face image is only affected by the performance (e.g., image resolution) of the image capturing device 12 itself, and is not affected by the frosted glass cover 11.
In one embodiment, the processor 13 may perform face recognition based on the target image. According to the face recognition result, the processor 13 can switch the operating state of the electronic device 10. For example, if the face recognition result reflects that the user in the target image is indeed a valid user of the electronic device 10, the processor 13 may switch the electronic device 10 to a login state corresponding to the valid user. Alternatively, if the face recognition result reflects that the user in the target image is not a legitimate user of the electronic device 10, the processor 13 may maintain the electronic device 10 in the non-logged-in state (e.g., the locked state).
In one embodiment, the processor 13 may further determine whether the ground glass upper cover 11 is movable. If the frosted glass upper cover 11 is movable, after determining that the brightness variation meets the preset condition, the processor 13 may move the frosted glass upper cover 11 to a position where the lens 21 can be exposed, as shown in fig. 5. After exposing the lens 21, the processor 13 may analyze the target image captured through the lens 21 and perform face recognition. However, if the frosted glass top cover 11 is not movable, after determining that the brightness variation meets the preset condition, the processor 13 may present the input interface 41 as shown in fig. 4 to receive the verification information input by the user and perform login verification.
In one embodiment, the ground glass upper cover 11 may be locked manually by a user (e.g., snap-lock via a solid latch) or the ground glass upper cover 11 may be locked by the processor 13. After the ground glass upper cover 11 is locked in a preset state, the ground glass upper cover 11 cannot move. In addition, if the user releases the locking of the frosted glass upper cover 11 manually or by the processor 13, the processor 13 can move the frosted glass upper cover 11 according to the measured brightness change to expose the lens of the image capturing device 12.
It should be noted that in the embodiments of fig. 3 and fig. 5, a notebook computer is taken as an example of the electronic device 10. However, in other embodiments, regardless of the type of the electronic device 10, the setting position of the ground glass cover 11, the setting position of the lens 21, the moving direction of the ground glass cover 11, the moving track of the ground glass cover 11, the shape of the ground glass cover 11, and/or the number of the lenses 21 can be adjusted according to practical requirements, and the invention is not limited thereto.
Fig. 8 is a flowchart illustrating a device control method according to an embodiment of the invention. Referring to fig. 8, in step S801, in a preset state, the lens of the image capturing device is shielded by the frosted glass upper cover. In step S802, a brightness change is detected by the lens through the frosted glass upper cover. In step S803, the electronic device is triggered to execute a preset operation according to the brightness change.
Fig. 9 is a flowchart illustrating a device control method according to an embodiment of the invention. Referring to fig. 9, in step S901, in a preset state, the lens of the image capturing device is covered by the frosted glass upper cover. In step S902, a brightness change is detected by the lens through the frosted glass upper cover. In step S903, it is determined whether the brightness change meets a preset condition. If the brightness variation does not meet the preset condition, the process returns to step S901. If the brightness variation meets the preset condition, in step S904, it is determined whether the upper cover of the ground glass is movable.
If the frosted glass upper cover is movable, in step S905, the frosted glass upper cover is moved to expose the lens of the image capturing device. In step S906, a target image is captured through the exposed lens and face recognition is performed according to the target image. In addition, if the ground glass upper cover is not movable, in step S907, the operation mode of the electronic device is switched. In step S908, authentication information is received via an input interface of the electronic device and login authentication is performed according to the authentication information.
However, the steps in fig. 8 and fig. 9 have been described in detail above, and are not repeated herein. It is noted that the steps in fig. 8 and fig. 9 can be implemented as a plurality of codes or circuits, and the invention is not limited thereto. In addition, the methods of fig. 8 and 9 may be used with the above exemplary embodiments, or may be used alone, and the invention is not limited thereto.
In summary, in the preset state, the frosted glass upper cover on the electronic device can shield the lens of the image capturing device. The lens can detect brightness change through the frosted glass upper cover. Then, the electronic device can be triggered to execute a preset operation according to the brightness change. In one embodiment, the ground glass upper cover can be moved to expose the lens according to the brightness change. The exposed lens can be used to capture a sharp image to perform face recognition. Alternatively, in an embodiment, an input interface may be provided according to the brightness change to receive the verification information input by the user and perform login verification. Thereby, better device performance and/or improved user experience may be provided.
Claims (10)
1. A device control method is used for controlling an electronic device, the electronic device is provided with a ground glass upper cover and an image acquisition device, and the device control method comprises the following steps:
in a preset state, a lens of the image acquisition device is shielded by the ground glass upper cover;
detecting a brightness change from the lens through the frosted glass upper cover; and
and triggering the electronic device to execute a preset operation according to the brightness change.
2. The device control method of claim 1, wherein the step of triggering the electronic device to perform the predetermined operation according to the brightness variation comprises:
judging whether the brightness change accords with a preset condition; and
and triggering the electronic device to execute the preset operation in response to the fact that the brightness change meets the preset condition.
3. The device control method of claim 1, wherein the predetermined operation comprises:
and moving the frosted glass upper cover to expose the lens of the image acquisition device.
4. The device control method of claim 3, wherein the predetermined operation further comprises:
after the upper cover of the ground glass is moved, a target image is collected through the lens; and
performing a face recognition according to the target image.
5. The device control method of claim 1, wherein the predetermined operation comprises:
switching a working mode of the electronic device;
after the working mode of the electronic device is switched, receiving verification information through an input interface of the electronic device; and
and executing login verification according to the verification information.
6. An electronic device, comprising:
a ground glass upper cover;
an image acquisition device having a lens; and
a processor coupled to the image acquisition device,
wherein, in a preset state, the upper cover of the frosted glass is used for shielding the lens,
the lens is used for detecting a brightness change through the frosted glass upper cover, and
the processor is used for controlling the electronic device to execute a preset operation according to the brightness change.
7. The electronic device of claim 6, wherein the processor controlling the electronic device to perform the predetermined operation according to the brightness variation comprises:
judging whether the brightness change accords with a preset condition; and
and controlling the electronic device to execute the preset operation in response to the fact that the brightness change meets the preset condition.
8. The electronic device of claim 6, wherein the predetermined operation comprises:
and moving the frosted glass upper cover to expose the lens of the image acquisition device.
9. The electronic device of claim 8, wherein the predetermined operation further comprises:
after the upper cover of the ground glass is moved, a target image is collected through the lens; and
performing a face recognition according to the target image.
10. The electronic device of claim 6, wherein the predetermined operation comprises:
switching a working mode of the electronic device;
after the working mode of the electronic device is switched, receiving verification information through an input interface of the electronic device; and
and executing login verification according to the verification information.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911099129.1A CN112866541A (en) | 2019-11-12 | 2019-11-12 | Device control method and electronic device |
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| CN201911099129.1A CN112866541A (en) | 2019-11-12 | 2019-11-12 | Device control method and electronic device |
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| CN112866541A true CN112866541A (en) | 2021-05-28 |
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| CN201911099129.1A Withdrawn CN112866541A (en) | 2019-11-12 | 2019-11-12 | Device control method and electronic device |
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Application publication date: 20210528 |