CN108900781B - Light supplement control method and device for image acquisition device and image acquisition system - Google Patents
Light supplement control method and device for image acquisition device and image acquisition system Download PDFInfo
- Publication number
- CN108900781B CN108900781B CN201810836316.2A CN201810836316A CN108900781B CN 108900781 B CN108900781 B CN 108900781B CN 201810836316 A CN201810836316 A CN 201810836316A CN 108900781 B CN108900781 B CN 108900781B
- Authority
- CN
- China
- Prior art keywords
- light
- gray value
- light supplement
- value
- image acquisition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/74—Circuitry for compensating brightness variation in the scene by influencing the scene brightness using illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Image Input (AREA)
Abstract
The application discloses a light supplement control method and device for an image acquisition device and an image acquisition system. Wherein, the method comprises the following steps: starting a light supplementing device for supplementing light to the image acquisition device; acquiring a gray value of a picture acquired by an image acquisition device; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value. The technical problem of the waste of light filling equipment power consumption is caused to the fixed light filling light intensity that the light intensity that has solved if the picture definition that the camera was shot reaches the requirement needs is less than light filling equipment.
Description
Technical Field
The application relates to the field of cameras, in particular to a light supplement control method and device for an image acquisition device and an image acquisition system.
Background
With the enhancement of security awareness of people, household security cameras are more and more popular, and a plurality of household appliances are also provided with the cameras for human body recognition of household scenes. At night, the camera cannot detect a clear camera picture, so that the infrared LED lamp is generally utilized for light supplement. However, the light supplement intensity cannot be adjusted by the conventional light supplement control method, so that the picture is sometimes highlighted, and sometimes, the light supplement cannot be effectively performed, so that the picture is not clear and the imaging effect is poor. Furthermore, some biometric functions cannot be realized. In addition, when the light supplement equipment supplements light to the camera with high stable light intensity, if the light supplement light intensity which is lower than the light supplement intensity is only needed to supplement light to the camera, the picture can be clear, and the waste of the power consumption of the light supplement equipment is caused.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the application provides a light supplement control method and device for an image acquisition device and an image acquisition system, and aims to at least solve the technical problem that if the definition of a picture shot by a camera meets requirements, the required light intensity is less than the fixed light supplement light intensity of light supplement equipment, so that the power consumption of the light supplement equipment is wasted.
According to an aspect of an embodiment of the present application, there is provided a light supplement control method for an image capturing device, including: starting a light supplementing device for supplementing light to the image acquisition device; acquiring a gray value of a picture acquired by an image acquisition device; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value.
Optionally, after the grayscale value of the picture is smaller than the first threshold, the method includes: and when the gray value is smaller than the first threshold, closing the light supplementing equipment, detecting the gray value after the light supplementing equipment is closed, if the gray value is smaller than the first threshold, continuously closing the light supplementing equipment, and otherwise, starting the light supplementing equipment.
Optionally, before starting a light supplement device for supplementing light to the image acquisition device, the method includes: determining the gray value of each frame of image in a preset time period before the light supplementing equipment is started; determining an average gray value according to the gray value of each frame of image; comparing the average gray value with a first threshold value; and when the average gray value is larger than the first threshold value, triggering and starting the light supplementing equipment.
Optionally, before triggering to start the light supplement device, the method includes: determining a value interval to which the average gray value belongs; and determining the light intensity corresponding to the value range, and taking the light intensity as the initial light intensity of the light supplementing device.
Optionally, before triggering to start the light supplement device, the method includes: determining a value interval to which the average gray value belongs; and determining the PWM duty ratio corresponding to the value-taking interval.
Optionally, gradually adjusting the fill-in light intensity of the fill-in light device includes: and gradually increasing the PWM duty ratio so as to increase the current value of a PWM driving power supply for driving the light supplementing equipment and increase the light supplementing intensity.
Optionally, in the above method, after the light supplement device of the image capturing apparatus is started, the method further includes: comparing the gray value with a second threshold value; and if the gray value is smaller than the second threshold value, closing the light supplementing equipment.
According to another aspect of the embodiments of the present application, there is provided a light supplement control method for an image capturing device, including: acquiring a gray value of a picture acquired by an image acquisition device; comparing the gray value with a preset threshold value; and adjusting the light supplement intensity of the picture according to the comparison result.
According to another aspect of the embodiments of the present application, there is provided a light supplement control method for an image capturing device, including: acquiring a gray value of a picture acquired by an image acquisition device; if the gray value is smaller than the first threshold and larger than the second threshold, trying to close the light supplementing device, detecting the gray value after the light supplementing device is closed, if the gray value is smaller than the first threshold, continuously closing the light supplementing device, and otherwise, starting the light supplementing device; and if the gray value is smaller than the third threshold and larger than the first threshold, selecting the initial light intensity of the light supplementing device according to the gray value, starting the light supplementing device, and gradually increasing the light intensity of the light supplementing device until the gray value of the picture is smaller than the first threshold.
According to another aspect of the embodiments of the present application, an image capturing system is provided, which includes an image capturing device, configured to send an instruction for starting a light supplement device to the light supplement device; acquiring a gray value of a picture acquired by an image acquisition device; comparing the gray value with a first threshold value; gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than a first threshold value; and the light supplementing equipment is used for receiving the instruction and supplementing light to the image acquisition device under the triggering of the instruction.
According to another aspect of the embodiments of the present application, there is provided a light supplement control device for an image capturing device, including: a starting module: the light supplementing equipment is used for starting the light supplementing of the image acquisition device; the acquisition module is used for acquiring the gray value of the picture acquired by the image acquisition device; an analysis module: for comparing the grey value with a first threshold value; an adjusting module: and the controller is used for gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value.
According to still another aspect of an embodiment of the present application, there is provided a storage medium including a stored program, where the program is executed to control a device on which the storage medium is located to perform the light supplement control method of the image capturing apparatus.
According to still another aspect of the embodiments of the present application, there is provided a processor for executing a program, where the program executes the fill-in light control method of the image capturing device described above.
In the embodiment of the application, the gray value of the picture acquired by the image acquisition device is acquired in real time; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold, and when the gray value of the picture is smaller than the first threshold, the definition of the picture meets the requirement. Therefore, the light supplement intensity of the light supplement equipment is gradually adjusted, when the definition of the picture meets the requirement, the light supplement intensity is stopped to be increased in time, the definition of the picture meets the requirement through the minimum light supplement intensity, and the technical effect of saving the power consumption of the light supplement equipment is achieved. And then solved if the picture definition that the camera was shot reaches the fixed light filling light intensity that the requirement needs is less than light filling equipment, cause the extravagant technical problem of light filling equipment consumption.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic diagram of an image acquisition system according to an embodiment of the present application;
fig. 2 is a schematic flowchart of a light supplement control method of an image capturing device according to an embodiment of the present disclosure;
fig. 3 is a schematic flowchart of another light supplement control method for an image capturing device according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of another light supplement control method for an image capturing device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a light supplement control device of an image capturing device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For a better understanding of the above embodiments, the meanings of technical terms referred to in the embodiments of the present application are explained below:
PWM (Pulse Width Modulation) is a very effective technique for controlling analog circuits using digital outputs of microprocessors, and is widely used in many fields ranging from measurement, communication to power control and conversion.
Fig. 1 is a schematic structural diagram of an image acquisition system according to an embodiment of the present application. As shown in fig. 1, the system includes: an image acquisition device 12 and a light supplement device 14. Wherein:
the image acquisition device 12 is configured to send an instruction for starting the light supplement device 14 to the light supplement device; acquiring the gray value of the picture acquired by the image acquisition device 12; comparing the gray value with a first threshold value; and gradually adjusting the fill-in light intensity of the fill-in light device 14 according to the comparison result until the gray-scale value of the picture is smaller than the first threshold.
In an alternative embodiment, the image capturing device 12 may be a monitoring camera for capturing images within a monitoring range. Light filling equipment 14 can install in image acquisition device 12 outsidely, and light filling equipment 14 can be infrared light filling lamp, and infrared light filling lamp comprises the infrared LED of multiunit, and the welding of multiunit LED lamp is in one or polylith PCB, and the copper cladding is handled on the PCB surface, does benefit to the heat dissipation, and infrared wavelength is generally 850 ~ 1000nm, and typical infrared wavelength is 940nm, belongs to the non-visible light.
And the supplementary lighting device 14 is configured to receive the instruction and perform supplementary lighting on the image acquisition device 12 under the trigger of the instruction.
The higher the gray scale value of the picture acquired by the image acquisition device 12 is, the darker the picture acquired by the image acquisition device 12 is, and the weaker the light of the scene of the shot picture is.
The image acquisition device 12 acquires the gray value of the shot picture in real time, and when the gray value of the picture acquired by the image acquisition device 12 is smaller than a first threshold, the definition of the picture acquired by the image acquisition device 12 meets the requirement.
In an optional embodiment, before the light supplement device 14 for supplementing light to the image acquisition device 12 is started, the image acquisition device 12 continuously shoots a plurality of images within a period of time, and determines a gray value of each frame of image within a preset period of time before the light supplement device 14 is started; determining an average gray value according to the gray value of each frame of image; comparing the average gray value with a first threshold value; when the average gray value is greater than the first threshold, the image acquisition device 12 sends an instruction to the light supplement device 14, and starts the light supplement device 14. Before the light supplement device 14 is triggered and started, a value interval to which the average gray value belongs is determined; and determining the light intensity corresponding to the value interval, and taking the light intensity as the initial light intensity of the light supplementing device 14.
In an optional embodiment, the light supplement device 14 is driven by a PWM adjustable driving power supply, and after the image acquisition device 12 determines the value interval to which the average gray value belongs, the appropriate PWM pulse width corresponding to the interval to which the average gray value belongs may be found according to a table look-up method, where the table is obtained by summarizing the product development actual simulation test statistical results. And controlling the PWM adjustable driving power supply according to the duty ratio corresponding to the PWM pulse width to drive the light supplement equipment 14 to supplement light according to the corresponding current value. The PWM duty ratio corresponds to the light intensity of the light supplement device 14, and the larger the PWM duty ratio is, the stronger the light intensity of the light supplement device 14 is. The PWM duty ratio when the light supplement device 14 is turned on is the initial light intensity of the light supplement device 14. After the light supplement device 14 is turned on, the current value of the PWM driving power supply for driving the light supplement device 14 is increased by gradually increasing the PWM duty ratio, so that the light intensity of the light supplement device 14 is increased. Specifically, the PWM duty may be increased periodically in time, and may be increased at a rate of 1% per 1 second. The sharpness of the image acquired by the image acquisition device 12 also gradually increases, and the gray value of the image acquired by the image acquisition device 12 gradually decreases. When the gray value of the image acquired by the image acquisition device 12 is smaller than the first threshold, the increase of the PWM duty is stopped. At this time, the light intensity of the supplementary light device 14 is stable, and the image acquired by the image acquisition device 12 is clear.
At this time, it is ensured that the definition of the image acquired by the image acquisition device 12 meets the requirement, and the increase of the PWM duty ratio and the increase of the light supplement intensity of the light supplement device 14 are stopped in time, so that the power consumption of the light supplement device 14 is reduced.
Fig. 2 is a schematic flowchart of a light supplement control method of an image capturing device according to an embodiment of the present disclosure.
As shown in fig. 2, the method comprises at least steps S202-S208:
step S202, a light supplement device for supplementing light to the image acquisition device is started.
In an alternative embodiment, the image capturing device may be a monitoring camera for capturing images within a monitoring range. The light filling equipment can be installed outside the image acquisition device and also can be arranged inside the image acquisition device, the light filling equipment can be an infrared light filling lamp, the infrared light filling lamp consists of multiple groups of infrared LEDs, the multiple groups of LED lamps are welded in one or multiple PCBs, the PCB surface is coated with copper for treatment, the heat dissipation is facilitated, the infrared wavelength is generally 850-1000 nm, the typical infrared wavelength is 940nm, and the non-visible light belongs to.
Step S204, acquiring the gray value of the picture acquired by the image acquisition device.
The higher the gray value of the picture collected by the image collection device is, the darker the picture collected by the image collection device is, and the weaker the light of the shot picture scene is.
The image acquisition device acquires the picture in real time, a control device can be arranged outside the image acquisition device, and the control device can be used for acquiring the gray value of the picture acquired by the image acquisition device. The control device can also be arranged inside the image acquisition device.
And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, the image acquired by the image acquisition device is clear and meets the requirement.
In an alternative embodiment, before step S202, the image capturing apparatus continuously captures a plurality of images for a period of time, and when the average gray-level value of the plurality of continuously captured images is greater than the preset threshold Q1, which represents that the environment is dark at this time, the light supplement device is directly turned on. When the average gray value of a plurality of continuously shot images is greater than a preset threshold value Q1, the light supplement device can be directly started with preset light intensity, so that after the light supplement device is started, the gray value of the collected image is smaller than the first threshold value after the light supplement device is started and the image collection device is started.
Step S206, comparing the gray value with a first threshold value.
Step S208, gradually adjusting the fill-in light intensity of the fill-in light device according to the comparison result until the gray-level value of the picture is smaller than the first threshold.
In an optional embodiment, before a light supplement device for supplementing light to an image acquisition device is started, the image acquisition device continuously shoots a plurality of images within a period of time, and the gray value of each frame of image within a preset period of time before the light supplement device is started is determined; determining an average gray value according to the gray value of each frame of image; comparing the average gray value with a first threshold value; and when the average gray value is larger than the first threshold value, triggering and starting the light supplementing equipment. Before the light supplementing equipment is triggered and started, determining a value interval to which the average gray value belongs; and determining the light intensity corresponding to the value interval, and taking the light intensity as the initial light intensity of the light supplementing equipment.
In an optional embodiment, the light supplementing device is driven by a PWM adjustable driving power supply, and after the value interval to which the average gray value belongs is determined, the appropriate PWM pulse width corresponding to the interval to which the average gray value belongs can be found according to a table look-up method, where the table is obtained by summarizing the product development actual simulation test statistical results. And controlling the PWM adjustable driving power supply according to the duty ratio corresponding to the PWM pulse width to drive the light supplementing equipment to supplement light according to the corresponding current value. The PWM duty ratio corresponds to the light intensity of the light supplementing device, and the larger the PWM duty ratio is, the stronger the light intensity of the light supplementing device is. The PWM duty ratio when the light supplement device is turned on corresponds to the light intensity of the light supplement device, which is the initial light intensity. After the light supplement equipment is started, the current value of a PWM driving power supply for driving the light supplement equipment is increased by gradually increasing the PWM duty ratio, so that the light intensity of the light supplement equipment is increased. Specifically, the PWM duty may be increased periodically in time, and may be increased at a rate of 1% per 1 second. The definition of the image collected by the image collecting device is gradually increased, and the gray value of the image collected by the image collecting device is gradually reduced. And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, stopping increasing the PWM duty ratio. At this time, the light intensity of the light supplement device is stable, and the image collected by the image collecting device is clear.
At the moment, the definition of the image collected by the image collecting device meets the requirement, the increase of the PWM duty ratio can be stopped in time, the light supplementing intensity of the light supplementing equipment is stopped in time, and the power consumption of the light supplementing equipment is saved.
The gray value of the image collected by the image collecting device is analyzed in real time. When the gray value is smaller than the first threshold value, the light supplement lamp is turned off, and the gray value after the light supplement lamp is turned off is detected; if the gray value is smaller than the first threshold value, the light supplement lamp is continuously turned off, otherwise, the light supplement lamp is turned on.
When the gray value of the image acquired by the image acquisition device is smaller than the first threshold, the image definition acquired by the image acquisition device already meets the requirement, but at the moment, if the ambient light participates in the periphery of the image acquisition device, under the combined action of the ambient light brightness and the light supplement equipment, the gray value of the image acquired by the image acquisition device is not greatly different from the gray value of the image acquired by the image acquisition device when the light supplement equipment acts alone. Therefore, the light supplement equipment needs to be turned off in an attempt, if the light supplement equipment is turned off, the gray value of the image is still smaller than the first threshold value, the light intensity of the ambient light at the moment is enough to enable the image collected by the image collecting device to be clear, the light supplement equipment does not need to be turned on, and then the light supplement equipment is continuously turned off. If the gray value of the image is larger than the first threshold value after the light supplement device is turned off, it is indicated that the ambient light cannot enable the definition of the image to meet the requirement, and the light supplement device needs to be restarted.
In an optional embodiment, a second threshold is set, where the second threshold is smaller than the first threshold, and after the light supplement device of the image acquisition apparatus is started, the method further includes: comparing the gray value with a second threshold value; and if the gray value is smaller than the second threshold value, closing the light supplementing equipment. When the gray value of the image is smaller than the second threshold value, the light intensity of the ambient light can be determined to be sufficient to enable the image collected by the image collecting device to be clear, and therefore the light supplementing device is directly closed. In the embodiment of the application, the gray value of the picture acquired by the image acquisition device is acquired in real time; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold, and when the gray value of the picture is smaller than the first threshold, the definition of the picture meets the requirement. Therefore, when the ambient light is increased, the light supplementing device can be timely turned off, the power consumption of the light supplementing device is saved, and the technical effect of prolonging the service life of the light supplementing device is achieved. And then solved if the picture definition that the camera was shot reaches the fixed light filling light intensity that the requirement needs is less than light filling equipment, cause the extravagant technical problem of light filling equipment consumption.
Fig. 3 is a schematic flow chart of another light supplement control method for an image capturing device according to an embodiment of the present disclosure, and as shown in fig. 3, the method includes at least steps S302-S306:
step S302, acquiring the gray value of the picture acquired by the image acquisition device;
the image acquisition device acquires pictures in real time, a control device can be arranged outside the image acquisition device, and the control device can be used for acquiring the gray value of the pictures acquired by the image acquisition device. The control device may also be internal to the image acquisition device.
Step S304, comparing the gray value with a preset threshold value;
step S306, adjusting the light supplement intensity of the picture according to the comparison result.
In an alternative embodiment, the image capturing device may be a monitoring camera for capturing images within a monitoring range. The light filling equipment can be installed outside the image acquisition device, and the light filling equipment can be infrared light filling lamp, and infrared light filling lamp comprises the infrared LED of multiunit, and the welding of multiunit LED lamp is in one or polylith PCB, and the copper is covered on the PCB surface and is handled, does benefit to the heat dissipation, and infrared wavelength is 850 ~ 1000nm generally, and typical infrared wavelength is 940nm, belongs to non-visible light.
And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, the image acquired by the image acquisition device is clear and meets the requirement.
In an optional embodiment, the image capturing device continuously captures a plurality of images within a period of time, and when an average gray-scale value of the continuously captured plurality of images is greater than a preset threshold Q1, which indicates that the environment is dark at that time, the light supplement device is directly turned on. When the average gray value of a plurality of continuously shot images is greater than a preset threshold value Q1, the light supplement device can be directly started with preset light intensity, so that after the light supplement device is started, the gray value of the collected image is smaller than the first threshold value after the light supplement device is started and the image collection device is started.
In an optional embodiment, before a light supplement device for supplementing light to an image acquisition device is started, the image acquisition device continuously shoots a plurality of images within a period of time, and the gray value of each frame of image within a preset period of time before the light supplement device is started is determined; determining an average gray value according to the gray value of each frame of image; comparing the average gray value with a first threshold value; and when the average gray value is larger than the first threshold value, triggering and starting the light supplementing equipment. Before the light supplementing equipment is triggered and started, determining a value interval to which the average gray value belongs; and determining the light intensity corresponding to the value interval, and taking the light intensity as the initial light intensity of the light supplementing equipment.
In an optional embodiment, the light supplementing device is driven by a PWM adjustable driving power supply, and after the value interval to which the average gray value belongs is determined, the appropriate PWM pulse width corresponding to the interval to which the average gray value belongs can be found according to a table look-up method, where the table is obtained by summarizing the product development actual simulation test statistical results. And controlling the PWM adjustable driving power supply according to the duty ratio corresponding to the PWM pulse width to drive the light supplementing equipment to supplement light according to the corresponding current value. The PWM duty ratio corresponds to the light intensity of the light supplementing device, and the larger the PWM duty ratio is, the stronger the light intensity of the light supplementing device is. The PWM duty ratio when the light supplement device is turned on corresponds to the light intensity of the light supplement device, which is the initial light intensity. After the light supplement equipment is started, the current value of a PWM driving power supply for driving the light supplement equipment is increased by gradually increasing the PWM duty ratio, so that the light intensity of the light supplement equipment is increased. Specifically, the PWM duty may be increased periodically in time, and may be increased at a rate of 1% per 1 second. The definition of the image collected by the image collecting device is gradually increased, and the gray value of the image collected by the image collecting device is gradually reduced. And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, stopping increasing the PWM duty ratio. At this time, the light intensity of the light supplement device is stable, and the image collected by the image collecting device is clear.
At the moment, the definition of the image collected by the image collecting device meets the requirement, the increase of the PWM duty ratio can be stopped in time, the light supplementing intensity of the light supplementing equipment is stopped in time, and the power consumption of the light supplementing equipment is saved.
The gray value of the image collected by the image collecting device is analyzed in real time. When the gray value is smaller than the first threshold value, the light supplement lamp is turned off, and the gray value after the light supplement lamp is turned off is detected; if the gray value is smaller than the first threshold value, the light supplement lamp is continuously turned off, otherwise, the light supplement lamp is turned on.
When the gray value of the image acquired by the image acquisition device is smaller than the first threshold, the image definition acquired by the image acquisition device already meets the requirement, but at the moment, if the ambient light participates in the periphery of the image acquisition device, under the combined action of the ambient light brightness and the light supplement equipment, the gray value of the image acquired by the image acquisition device is not greatly different from the gray value of the image acquired by the image acquisition device when the light supplement equipment acts alone. Therefore, the light supplement equipment needs to be turned off in an attempt, if the light supplement equipment is turned off, the gray value of the image is still smaller than the first threshold value, the light intensity of the ambient light at the moment is enough to enable the image collected by the image collecting device to be clear, the light supplement equipment does not need to be turned on, and then the light supplement equipment is continuously turned off. If the gray value of the image is larger than the first threshold value after the light supplement device is turned off, it is indicated that the ambient light cannot enable the definition of the image to meet the requirement, and the light supplement device needs to be restarted. In an optional embodiment, a second threshold is set, where the second threshold is smaller than the first threshold, and after the light supplement device of the image acquisition apparatus is started, the method further includes: comparing the gray value with a second threshold value; and if the gray value is smaller than the second threshold value, closing the light supplementing equipment. When the gray value of the image is smaller than the second threshold value, the light intensity of the ambient light can be determined to be sufficient to enable the image collected by the image collecting device to be clear, and therefore the light supplementing device is directly closed.
In the embodiment of the application, the gray value of the picture acquired by the image acquisition device is acquired in real time; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold, and when the gray value of the picture is smaller than the first threshold, the definition of the picture meets the requirement. Therefore, when the ambient light is increased, the light supplementing device can be timely turned off, the power consumption of the light supplementing device is saved, and the technical effect of prolonging the service life of the light supplementing device is achieved. And then solved if the picture definition that the camera was shot reaches the fixed light filling light intensity that the requirement needs is less than light filling equipment, cause the extravagant technical problem of light filling equipment consumption.
Fig. 4 is a schematic flow chart of another light supplement control method for an image capturing device according to an embodiment of the present disclosure, and as shown in fig. 4, the method at least includes steps S402 to S406:
step S402, acquiring the gray value of the picture acquired by the image acquisition device;
the image acquisition device acquires the picture in real time, the image acquisition device can be externally connected with a control device, and the control device can be used for acquiring the gray value of the picture acquired by the image acquisition device. The control device can also be arranged inside the image acquisition device.
The higher the gray value of the picture collected by the image collection device is, the darker the picture collected by the image collection device is, and the weaker the light of the shot picture scene is.
And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, the image acquired by the image acquisition device is clear and meets the requirement. The light supplement control is divided into two cases according to the comparison result between the gray-level value and the different threshold values, and the specific case is as shown in the following steps S404 and S406.
Step S404, if the gray-scale value is smaller than the first threshold and larger than the second threshold, trying to close the light supplement device, and detecting the gray-scale value after closing the light supplement device, if the gray-scale value is smaller than the first threshold, continuously closing the light supplement device, otherwise, starting the light supplement device.
In an alternative embodiment, the image capturing device may be a monitoring camera for capturing images within a monitoring range. The light filling equipment can be installed outside the image acquisition device, and the light filling equipment can be infrared light filling lamp, and infrared light filling lamp comprises the infrared LED of multiunit, and the welding of multiunit LED lamp is in one or polylith PCB, and the copper is covered on the PCB surface and is handled, does benefit to the heat dissipation, and infrared wavelength is 850 ~ 1000nm generally, and typical infrared wavelength is 940nm, belongs to non-visible light.
Wherein the second threshold is less than the first threshold.
In order to solve the technical problems that after the light supplement is automatically started under the night vision condition, a user enters a family to actively start an indoor lamp, the light intensity is not obviously superposed, so that an infrared light supplement lamp cannot be timely turned off, the extra power consumption of the light supplement lamp is caused, and the service life of the light supplement lamp is shortened. In an optional embodiment, when the gray-level value of the image acquired by the image acquisition device is smaller than the first threshold and larger than the second threshold, the sharpness of the image acquired by the image acquisition device already meets the requirement, but at this time, if ambient light participates in the periphery of the image acquisition device, and the ambient light brightness and the light supplement device act together, the gray-level value of the image acquired by the image acquisition device and the gray-level value of the image acquired by the image acquisition device when the light supplement device acts alone do not differ greatly. Therefore, the light supplement equipment needs to be turned off in an attempt, if the light supplement equipment is turned off, the gray value of the image is still smaller than the first threshold value, the light intensity of the ambient light at the moment is enough to enable the image collected by the image collecting device to be clear, the light supplement equipment does not need to be turned on, and then the light supplement equipment is continuously turned off. If the gray value of the image is larger than the first threshold value after the light supplement device is turned off, it is indicated that the ambient light cannot enable the definition of the image to meet the requirement, and the light supplement device needs to be restarted.
In an optional embodiment, after the light supplement device of the image acquisition device is started, comparing the gray value with a second threshold; and if the gray value is smaller than the second threshold value, closing the light supplementing equipment. When the gray value of the image is smaller than the second threshold value, the light intensity of the ambient light can be determined to be sufficient to enable the image collected by the image collecting device to be clear, and therefore the light supplementing device is directly closed.
Step S406, if the gray-level value is smaller than the third threshold and larger than the first threshold, selecting an initial light intensity of the light supplement device according to the gray-level value, turning on the light supplement device, and gradually increasing the light intensity of the light supplement device until the gray-level value of the picture is smaller than the first threshold.
And continuously shooting a plurality of images in a period of time by using an optional image acquisition device, and when the average gray value of the continuously shot images is greater than a third threshold of a preset threshold, representing that the environment is dark at the moment, starting the light supplement equipment. When the average gray value of a plurality of continuously shot images is greater than the preset threshold value, the light supplementing device can be directly started with preset light intensity, so that after the light supplementing device is started, the gray value of the collected image is smaller than the first threshold value after the light supplementing device is started by the image collecting device.
In an optional embodiment, before a light supplement device for supplementing light to an image acquisition device is started, the image acquisition device continuously shoots a plurality of images within a period of time, and the gray value of each frame of image within a preset period of time before the light supplement device is started is determined; determining an average gray value according to the gray value of each frame of image; comparing the average gray value with a first threshold value; and when the average gray value is smaller than the third threshold and larger than the first threshold, triggering and starting the light supplementing equipment. Before the light supplementing equipment is triggered and started, determining a value interval to which the average gray value belongs; and determining the light intensity corresponding to the value interval, and taking the light intensity as the initial light intensity of the light supplementing equipment.
In an optional embodiment, the light supplementing device is driven by a PWM-adjustable driving power supply, and after the value interval to which the average gray value belongs is determined, the appropriate PWM pulse width corresponding to the interval to which the average gray value belongs can be found according to a table look-up method, where the table is obtained by summarizing the product development actual simulation test statistical results. And controlling the PWM adjustable driving power supply according to the duty ratio corresponding to the PWM pulse width to drive the light supplementing equipment to supplement light according to the corresponding current value. The PWM duty ratio corresponds to the light intensity of the light supplementing device, and the larger the PWM duty ratio is, the stronger the light intensity of the light supplementing device is. The PWM duty ratio when the light supplement device is turned on corresponds to the light intensity of the light supplement device, which is the initial light intensity. After the light supplement equipment is started, the current value of a PWM driving power supply for driving the light supplement equipment is increased by gradually increasing the PWM duty ratio, so that the light intensity of the light supplement equipment is increased. Specifically, the PWM duty may be increased periodically in time, and may be increased at a rate of 1% per 1 second. The definition of the image collected by the image collecting device is gradually increased, and the gray value of the image collected by the image collecting device is gradually reduced. And when the gray value of the image acquired by the image acquisition device is smaller than the first threshold, stopping increasing the PWM duty ratio. At this time, the light intensity of the light supplement device is stable, and the image collected by the image collecting device is clear.
At the moment, the definition of the image collected by the image collecting device meets the requirement, the increase of the PWM duty ratio can be stopped in time, the light supplementing intensity of the light supplementing equipment is stopped in time, and the power consumption of the light supplementing equipment is saved.
In the embodiment of the application, the gray value of the picture acquired by the image acquisition device is acquired in real time; comparing the gray value with a first threshold value; and gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold, and when the gray value of the picture is smaller than the first threshold, the definition of the picture meets the requirement. Therefore, when the ambient light is increased, the light supplementing device can be timely turned off, the power consumption of the light supplementing device is saved, and the technical effect of prolonging the service life of the light supplementing device is achieved. And then solved if the picture definition that the camera was shot reaches the fixed light filling light intensity that the requirement needs is less than light filling equipment, cause the extravagant technical problem of light filling equipment consumption. Secondly, also solved under the night vision condition, after the automatic light filling that opens, under the user got into the family and initiatively opened the condition of indoor lamp, the light intensity stack is not obvious, leads to infrared light filling lamp can not in time turn-off, causes the extra consumption of light filling lamp to can cause the technical problem of the life-span reduction of light filling lamp.
Fig. 5 is a schematic structural diagram of a light supplement control device of an image capturing device according to an embodiment of the present application. As shown in fig. 5, the apparatus includes: a start module 52; an acquisition module 54; an analysis module 56; and an adjustment module 58. Wherein:
the start module 52: the light supplementing equipment is used for starting the light supplementing of the image acquisition device;
in some optional embodiments, the image acquisition device may be a camera, and the light supplement device may be an infrared light supplement lamp.
An obtaining module 54, configured to obtain a gray value of a picture acquired by the image acquisition device;
in some optional embodiments, the picture acquired by the image acquisition device may be a monitoring image captured by a monitoring camera, and the gray-scale value of the picture acquired by the image acquisition device is an average of the gray-scale values of all pixels in the picture image or a gray-scale value of ambient light in the picture.
The analysis module 56: for comparing the grey value with a first threshold value;
the adjusting module 58: and the controller is used for gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value.
When the gray value is smaller than the first threshold value, the image quality of the picture acquired by the image acquisition device is clear. The adjusting module 58 may gradually adjust the fill-in light intensity of the fill-in light device according to the comparison result, and may perform other identification, such as human body identification or face identification to alarm intrusion of a stranger.
It should be noted that, reference may be made to the description related to the embodiment shown in fig. 2 for a preferred implementation of the embodiment shown in fig. 5, and details are not described here again.
According to still another aspect of an embodiment of the present application, there is provided a storage medium including a stored program, where the program is executed to control a device on which the storage medium is located to perform the light supplement control method of the image capturing apparatus.
According to still another aspect of the embodiments of the present application, there is provided a processor for executing a program, where the program executes the fill-in light control method of the image capturing device described above.
In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be substantially implemented or contributed to by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (11)
1. A light supplement control method of an image acquisition device is characterized by comprising the following steps:
starting a light supplementing device for supplementing light to the image acquisition device;
acquiring a gray value of a picture acquired by the image acquisition device;
comparing the gray value with a first threshold value;
gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value;
after the grayscale value of the picture is less than the first threshold, the method further includes:
when the gray value is smaller than the first threshold value, closing the light supplementing equipment, and detecting the gray value after closing the light supplementing equipment; if the gray value is smaller than the first threshold, the light supplement equipment is continuously closed, otherwise, the light supplement equipment is opened;
gradually adjusting the fill light intensity of the fill light device, including: gradually increasing the PWM duty ratio so as to increase the current value of a PWM driving power supply for driving the light supplement equipment and increase the light supplement intensity;
the method further comprises the following steps: and stopping increasing the PWM duty ratio when the gray value is smaller than the first threshold value.
2. A light supplement control method for an image capturing device according to claim 1, wherein before starting a light supplement device for supplementing light to the image capturing device, the method further comprises:
determining the gray value of each frame of image in a preset time period before the light supplementing equipment is started; determining an average gray value according to the gray value of each frame of image; comparing the average gray value to the first threshold; and triggering and starting the light supplementing equipment when the average gray value is larger than the first threshold value.
3. A light supplement control method for an image capturing device according to claim 2, wherein before triggering the light supplement device, the method comprises:
determining a value interval to which the average gray value belongs; and determining the light intensity corresponding to the value interval, and taking the light intensity as the initial light intensity of the light supplementing device.
4. A light supplement control method for an image capturing device according to claim 2, wherein before triggering the light supplement device, the method comprises:
determining a value interval to which the average gray value belongs; and determining the PWM duty ratio corresponding to the value interval.
5. A light supplement control method for an image acquisition device according to any one of claims 1 to 4, wherein after the light supplement device of the image acquisition device is started, the method further comprises: comparing the gray value with a second threshold value; and if the gray value is smaller than the second threshold value, closing the light supplementing equipment.
6. A light supplement control method of an image acquisition device is characterized by comprising the following steps:
acquiring a gray value of a picture acquired by an image acquisition device;
comparing the gray value with a preset threshold value;
adjusting the light supplement intensity of the picture according to the comparison result;
adjusting the fill-in light intensity of the picture according to the comparison result comprises: gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than a first threshold value;
after the grayscale value of the picture is less than the first threshold, the method further includes:
when the gray value is smaller than the first threshold value, closing the light supplementing equipment, and detecting the gray value after closing the light supplementing equipment; if the gray value is smaller than the first threshold, the light supplement equipment is continuously closed, otherwise, the light supplement equipment is opened;
gradually adjusting the fill light intensity of the fill light device, including: gradually increasing the PWM duty ratio so as to increase the current value of a PWM driving power supply for driving the light supplement equipment and increase the light supplement intensity;
the method further comprises the following steps: and stopping increasing the PWM duty ratio when the gray value is smaller than the first threshold value.
7. A light supplement control method of an image acquisition device is characterized by comprising the following steps:
acquiring a gray value of a picture acquired by the image acquisition device;
if the gray value is smaller than a first threshold and larger than a second threshold, trying to close the light supplementing device, detecting the gray value after the light supplementing device is closed, if the gray value is smaller than the first threshold, continuously closing the light supplementing device, and otherwise, starting the light supplementing device;
if the gray value is smaller than a third threshold and larger than the first threshold, selecting initial light intensity of light supplementing equipment according to the gray value, starting the light supplementing equipment, and gradually increasing the light intensity of the light supplementing equipment until the gray value of the picture is smaller than the first threshold;
gradually adjusting the fill light intensity of the fill light device, including: gradually increasing the PWM duty ratio so as to increase the current value of a PWM driving power supply for driving the light supplement equipment and increase the light supplement intensity;
the method further comprises the following steps: and stopping increasing the PWM duty ratio when the gray value is smaller than the first threshold value.
8. An image acquisition system, comprising:
the image acquisition device is used for sending an instruction for starting the light supplement equipment to the light supplement equipment; acquiring a gray value of a picture acquired by an image acquisition device; comparing the gray value with a first threshold value; gradually adjusting the light supplement intensity of the light supplement equipment according to the comparison result until the gray value of the picture is smaller than the first threshold value;
the light supplementing equipment is used for receiving the instruction and supplementing light to the image acquisition device under the triggering of the instruction;
the image acquisition device is further used for controlling to close the light supplementing equipment when the gray value is smaller than the first threshold value, and detecting the gray value after the light supplementing equipment is closed; if the gray value is smaller than the first threshold, controlling to continuously close the light supplementing device, otherwise, controlling to open the light supplementing device;
the image acquisition device is further used for gradually increasing the PWM duty ratio so as to increase the current value of a PWM driving power supply for driving the light supplement equipment and increase the light supplement intensity;
the image acquisition device is further used for stopping increasing the PWM duty ratio when the gray value is smaller than the first threshold value.
9. The utility model provides an image acquisition device's light filling controlling means which characterized in that includes:
a starting module: the light supplementing equipment is used for starting the light supplementing of the image acquisition device;
the acquisition module is used for acquiring the gray value of the picture acquired by the image acquisition device;
an analysis module: for comparing the grey value with a first threshold value;
an adjusting module: the light supplement device is used for gradually adjusting the light supplement intensity of the light supplement device according to the comparison result until the gray value of the picture is smaller than the first threshold value;
the device is further configured to close the light supplement device when the gray value is smaller than the first threshold, and detect the gray value after closing the light supplement device; if the gray value is smaller than the first threshold, the light supplement equipment is continuously closed, otherwise, the light supplement equipment is opened;
the adjusting module is further configured to gradually increase the PWM duty ratio, so as to increase a current value of a PWM driving power supply for driving the light supplement device, and increase the light supplement intensity;
the adjusting module is further configured to stop increasing the PWM duty cycle when the grayscale value is less than the first threshold.
10. A storage medium, comprising a stored program, wherein when the program runs, a device in which the storage medium is located is controlled to execute the light supplement control method of the image capturing apparatus according to any one of claims 1 to 5.
11. A processor, configured to execute a program, wherein the program executes the fill-in light control method of the image capturing device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836316.2A CN108900781B (en) | 2018-07-26 | 2018-07-26 | Light supplement control method and device for image acquisition device and image acquisition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810836316.2A CN108900781B (en) | 2018-07-26 | 2018-07-26 | Light supplement control method and device for image acquisition device and image acquisition system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108900781A CN108900781A (en) | 2018-11-27 |
| CN108900781B true CN108900781B (en) | 2020-11-27 |
Family
ID=64352046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810836316.2A Active CN108900781B (en) | 2018-07-26 | 2018-07-26 | Light supplement control method and device for image acquisition device and image acquisition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108900781B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708509B (en) * | 2019-03-12 | 2020-10-21 | 麗寶大數據股份有限公司 | System and method for image displaying |
| CN111369556B (en) * | 2020-03-23 | 2024-02-20 | 中铁电气化局集团有限公司 | Contact net detection method and system |
| CN111988506B (en) * | 2020-08-14 | 2022-03-01 | 深圳市商汤科技有限公司 | Light supplementing method and device, electronic equipment and storage medium |
| CN112954229B (en) * | 2021-02-08 | 2023-04-18 | 青岛海尔电冰箱有限公司 | Method and device for adjusting light intensity of light supplementing lamp based on gray value and refrigerator |
| CN113642555B (en) * | 2021-07-29 | 2022-08-05 | 深圳市芯成像科技有限公司 | Image processing method, computer readable medium and system |
| CN116246053A (en) * | 2022-04-08 | 2023-06-09 | 辽宁警察学院 | Vehicle monitoring system image acquisition method based on two-stage continuous photographing and light supplementing |
| CN116503369B (en) * | 2023-05-06 | 2024-01-26 | 北京思莫特科技有限公司 | Deformation monitoring method of structure and image exposure parameter adjusting method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707826A (en) * | 2017-09-29 | 2018-02-16 | 深圳怡化电脑股份有限公司 | The brightness adjusting method and device of light compensating lamp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118608A (en) * | 2009-12-30 | 2011-07-06 | 捷达世软件（深圳）有限公司 | System and method for adjusting video monitoring light |
| CN203416333U (en) * | 2013-07-17 | 2014-01-29 | 广东安居宝数码科技股份有限公司 | PWM infrared fill-in light switching device |
| CN104202537B (en) * | 2014-09-05 | 2019-03-01 | 天彩电子（深圳）有限公司 | A kind of light-dimming method of thermal camera |
| CN106941579B (en) * | 2017-03-03 | 2019-03-15 | 东软集团股份有限公司 | The method and device of image scanning |
-
2018
- 2018-07-26 CN CN201810836316.2A patent/CN108900781B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707826A (en) * | 2017-09-29 | 2018-02-16 | 深圳怡化电脑股份有限公司 | The brightness adjusting method and device of light compensating lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108900781A (en) | 2018-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108900781B (en) | Light supplement control method and device for image acquisition device and image acquisition system | |
| CN105759935B (en) | A kind of terminal control method and terminal | |
| CN110336954B (en) | Automatic light supplementing adjustment method, system and storage medium | |
| CN109194873B (en) | Image processing method and device | |
| CN106210334B (en) | Intelligent flash lamp control method and system and mobile terminal | |
| CN111818271B (en) | Method for eliminating image flicker, electronic device and storage medium | |
| CN108737728B (en) | Image shooting method, terminal and computer storage medium | |
| WO2017172695A1 (en) | Systems and methods of biometric anaysis with adaptive trigger | |
| CN111510637A (en) | Brightness adjusting method and device of light supplementing device, road light supplementing device and electronic equipment | |
| CN105049737A (en) | Light supplement control method, apparatus and mobile terminal | |
| CN103905706A (en) | Internet protocol camera and control method thereof | |
| CN103236249B (en) | The method and apparatus that display device regulates automatically | |
| CN114596620B (en) | Light supplement control method, device and equipment for face recognition equipment and storage medium | |
| CN102970482A (en) | Method for automatically starting pinkeye preventing model in photographing and photographing equipment thereof | |
| CN103297675A (en) | Image capture method and relative image capture system | |
| US20050199815A1 (en) | Irradiation control device | |
| CN113114926A (en) | Image processing method and device and camera | |
| CN116320771A (en) | Shooting method and electronic equipment | |
| CN105915810B (en) | Control method of electronic equipment and electronic equipment | |
| CN108668022B (en) | Face unlocking method in dark state and mobile terminal thereof | |
| CN102879977B (en) | Camera flash control method, control device and mobile terminal | |
| CN114302068B (en) | Image shooting method and device | |
| CN110740264B (en) | Intelligent camera data rapid acquisition system and acquisition method | |
| CN110505413A (en) | Light-source control system based on double light source gun shaped video cameras | |
| CN113132617B (en) | Image jitter judgment method and device and image identification triggering method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |