CN111641789A - Multi-camera system light supplement control method, device, equipment and medium - Google Patents
Multi-camera system light supplement control method, device, equipment and medium Download PDFInfo
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- CN111641789A CN111641789A CN202010531677.3A CN202010531677A CN111641789A CN 111641789 A CN111641789 A CN 111641789A CN 202010531677 A CN202010531677 A CN 202010531677A CN 111641789 A CN111641789 A CN 111641789A
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
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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
- H04N23/70—Circuitry for compensating brightness variation in the scene
- H04N23/72—Combination of two or more compensation controls
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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
- H04N23/70—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
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Abstract
The invention provides a light supplement control method, a device, equipment and a medium based on a multi-camera system, which comprise the following steps: the main camera system acquires light brightness information through one or more auxiliary camera systems, outputs a light supplement control instruction to the auxiliary camera systems based on the light brightness information, and controls the brightness of light supplement lamps in the auxiliary camera systems; the invention can realize remote light supplement control and has strong stability.
Description
Technical Field
The invention relates to the field of camera control, in particular to a method, a device, equipment and a medium for controlling light supplement of a multi-camera system.
Background
At present, a one-by-one or one-by-N remote multi-lens camera is a main machine, and a plurality of lenses are mounted on a plurality of auxiliary machine systems, and the lenses can independently monitor different places at a remote distance. At present, a main machine DSP outputs a PWM waveform to control a light supplement lamp driving IC (integrated circuit) in an infrared lamp light supplement driving scheme commonly used by people, but only the main machine has a DSP small system in the actual work of dragging one or dragging N equipment, and other auxiliary equipment cannot control a light supplement lamp if meeting in an outdoor place of cloudy days or at night due to the fact that the DSP small system is lacked, the intensity of light entering the lens is possibly insufficient, and the image shot by the lens is not clear enough.
Therefore, how to solve the problem that the monitoring effect of the one-by-one or one-by-N remote multi-lens camera in the place with insufficient light is poor becomes a technical problem to be solved urgently.
Disclosure of Invention
In view of the problems in the prior art, the invention provides a method, a device, equipment and a medium for controlling light supplement of a multi-camera system, and mainly solves the problem of poor remote monitoring effect.
In order to achieve the above and other objects, the present invention adopts the following technical solutions.
A light supplement control method based on a multi-camera system comprises the following steps:
the main camera system obtains light brightness information through one or more auxiliary camera systems, outputs a light supplement control instruction to the auxiliary camera systems based on the light brightness information, and controls the brightness of light supplement lamps in the auxiliary camera systems.
Optionally, a processor of a main camera system generates a brightness acquisition instruction, the brightness acquisition instruction is transmitted to one or more auxiliary camera systems, and brightness detection equipment in the auxiliary camera systems is controlled to acquire the light brightness information;
and the processor outputs a light supplement control instruction to the auxiliary camera system according to the light brightness information, and controls the brightness of a light supplement lamp in the auxiliary camera system.
Optionally, a brightness adjustment parameter is obtained according to the light brightness information, and the light supplement control instruction is generated by the processor to control the brightness of a light supplement lamp in the auxiliary camera system.
Optionally, the supplementary lighting control instruction carries adjustment voltage information.
Optionally, the main camera system outputs the brightness acquisition instruction and/or the supplementary lighting control instruction to the auxiliary camera system in a coaxial transmission manner.
Optionally, the main camera system converts the brightness acquisition instruction and/or the fill-in light control instruction into coaxial data through a coaxial data conversion module and outputs the coaxial data.
Optionally, the coaxial data conversion module at least includes an MIPI-coaxial conversion chip.
Optionally, the auxiliary camera system analyzes the brightness acquisition instruction and/or the supplementary lighting control instruction from the acquired coaxial data through an analysis module, and controls the brightness detection device and/or the supplementary lighting lamp to execute a corresponding instruction.
Optionally, the parsing module at least includes a coaxil-MIPI conversion chip.
Optionally, the brightness acquisition instruction and/or the fill-in light control instruction are transmitted through a communication protocol.
Optionally, the communication protocol at least includes an I2C protocol, a MIPI protocol.
Optionally, the brightness detection device at least includes an analog-to-digital converter and an ambient brightness detector, where the analog-to-digital converter converts the light brightness information obtained by the ambient brightness detector into a digital signal and feeds the digital signal back to the processor.
Optionally, the processor determines whether the light brightness information reaches a preset brightness threshold, and if so, generates the supplementary lighting control instruction and transmits the supplementary lighting control instruction to a supplementary lighting lamp in a corresponding auxiliary camera system for supplementary lighting brightness control; and if the brightness threshold value is not reached, continuously outputting the brightness acquisition instruction.
Optionally, the light supplement lamp at least includes a digital-to-analog converter and a light supplement chip, where the digital-to-analog converter converts the light supplement control instruction into an analog signal to drive the light supplement chip to output a corresponding light supplement brightness value.
Optionally, mapping the brightness adjustment parameter into a control numerical range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip to obtain a digital-to-analog conversion value;
and the digital-to-analog converter drives the light supplementing chip to output the corresponding light supplementing brightness value according to the digital-to-analog conversion value.
Optionally, an adjustable factor is set, and the digital-to-analog conversion value is adjusted according to the adjustable factor so as to adjust the fill-in light brightness value.
Optionally, the processor comprises one of: digital signal processor, micro control unit, central processing unit.
A light supplement control device for multiple camera systems comprises:
the main control equipment is used for acquiring light brightness information by the main camera system through one or more auxiliary camera systems;
and the light supplement control equipment is used for outputting a light supplement control instruction to the auxiliary camera system according to the light brightness information and controlling the brightness of a light supplement lamp in the auxiliary camera system.
Optionally, the system comprises an instruction transmission module, configured to generate a brightness acquisition instruction through a processor of a main camera system, transmit the brightness acquisition instruction to one or more auxiliary camera systems, and control a brightness detection device in the auxiliary camera systems to obtain the light brightness information;
and the processor outputs a light supplement control instruction to the auxiliary camera system according to the light brightness information, and controls the brightness of a light supplement lamp in the auxiliary camera system.
Optionally, the auxiliary camera system further comprises a parameter obtaining module, configured to obtain a brightness adjustment parameter according to the light brightness information, and generate the supplementary lighting control instruction through the processor, so as to control the brightness of the supplementary lighting in the auxiliary camera system.
Optionally, the supplementary lighting control instruction carries adjustment voltage information.
Optionally, the system further includes a coaxial transmission system, configured to output the brightness acquisition instruction and/or the supplementary lighting control instruction to the auxiliary camera system by the main camera system through a coaxial transmission mode.
Optionally, the coaxial transmission system includes a coaxial data conversion module, configured to convert the brightness acquisition instruction and/or the fill-in light control instruction into coaxial data for output.
Optionally, the coaxial data conversion module at least includes an MIPI-coaxial conversion chip.
Optionally, the coaxial transmission system includes an analysis module, configured to analyze the brightness acquisition instruction and/or the fill-in light control instruction from the acquired coaxial data, and output an instruction for controlling the brightness detection device and/or the fill-in light to execute the corresponding instruction.
Optionally, the parsing module at least includes a coaxil-MIPI conversion chip.
Optionally, the system comprises a communication module, configured to transmit the brightness acquisition instruction and/or the fill-in light control instruction through a communication protocol.
Optionally, the communication protocol at least includes an I2C protocol, a MIPI protocol.
Optionally, the brightness detection device at least includes an analog-to-digital converter and an ambient brightness detector, where the analog-to-digital converter converts the light brightness information obtained by the ambient brightness detector into a digital signal and feeds the digital signal back to the processor.
Optionally, the processor determines whether the light brightness information reaches a preset brightness threshold, and if so, generates the supplementary lighting control instruction and transmits the supplementary lighting control instruction to a supplementary lighting lamp in a corresponding auxiliary camera system for supplementary lighting brightness control; and if the brightness threshold value is not reached, continuously outputting the brightness acquisition instruction.
Optionally, the light supplement lamp at least includes a digital-to-analog converter and a light supplement chip, where the digital-to-analog converter converts the light supplement control instruction into an analog signal to drive the light supplement chip to output a corresponding light supplement brightness value.
Optionally, the system comprises a luminance parameter conversion module, configured to map the luminance adjustment parameter into a control value range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip, so as to obtain a digital-to-analog conversion value;
and the digital-to-analog converter drives the light supplementing chip to output the light supplementing brightness value corresponding to the brightness adjusting parameter according to the digital-to-analog conversion value.
Optionally, the apparatus includes an adjustable factor setting module, configured to set an adjustable factor, and adjust the digital-to-analog conversion value according to the adjustable factor to adjust the fill-in luminance value.
Optionally, the processor comprises one of: digital signal processor, micro control unit, central processing unit.
An apparatus, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the multi-camera system fill light control method.
One or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause an apparatus to perform the multi-camera system fill light control method.
As described above, the method, the apparatus, the device and the medium for controlling fill-in light of multiple camera systems according to the present invention have the following advantages.
The light brightness acquisition and light supplement process of the auxiliary camera system is controlled through the main camera system, so that the light supplement lamp can be remotely controlled, and the quality of remote image shooting is improved.
Drawings
Fig. 1 is a flowchart of a light supplement control method for a multi-camera system according to an embodiment of the present invention.
Fig. 2 is a block diagram of a fill-in light control apparatus of a multi-camera system according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a terminal device in an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a terminal device in another embodiment of the present invention.
Fig. 5 is a schematic diagram of data transmission of a multi-camera system according to an embodiment of the invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Referring to fig. 1, the present invention provides a light supplement control method for multiple camera systems, which includes that a main camera system obtains light brightness information through one or more auxiliary camera systems, and outputs a light supplement control instruction to the auxiliary camera systems based on the light brightness information, so as to control the brightness of light supplement lamps in the auxiliary camera systems.
In one embodiment, when multiple camera systems cooperate to monitor different locations relatively independently from each other at a remote location, a main camera system and one or more auxiliary camera systems may be provided, and only the main camera system includes a processor. And data information such as images, light brightness information and the like returned by the auxiliary camera system is received by the processor. The main camera system may include a communication module, and the communication module may be configured with communication protocol interfaces such as an MIPI Interface (Mobile Industry Processor Interface), an I2C Interface, and the like to perform data transmission with the auxiliary camera system. The main camera system can transmit the generated brightness acquisition instruction, the generated light supplement control instruction and the like to the auxiliary camera system through the corresponding communication protocol interface of the communication module.
In one embodiment, the processor of the main camera system may include one of a Digital Signal Processor (DSP), a Micro-Control Unit (MCU), a Central Processing Unit (CPU), and the like.
Referring to fig. 5, in an embodiment, in order to ensure stability of remote data transmission, a coaxial data conversion module may be disposed in the main camera system, and convert the instruction output by the main camera system and the data output by the communication module into coaxial data for transmission, for example, convert the instruction transmitted by the processor through the MIPI interface into coaxial data. The coaxial data conversion module may include an MIPI-coaxial conversion chip.
In one embodiment, the auxiliary camera system is provided with an analysis module for receiving the coaxial data transmitted by the main camera system and analyzing corresponding instructions from the coaxial data. The analysis module may include a coaxial-MIPI conversion chip.
Coaxial data transmission interfaces corresponding to the main camera system and the auxiliary camera system can be used for realizing coaxial data transmission between the main camera system and the auxiliary camera system through a single coaxial data line.
In one embodiment, the processor generates a brightness acquisition command, transmits the brightness acquisition command to the coaxial data conversion module through the I2C protocol interface, and converts the brightness acquisition command into coaxial data to be transmitted to one or more auxiliary camera systems.
After the auxiliary camera system analyzes the brightness acquisition instruction, the instruction can be transmitted to the corresponding brightness detection equipment through an I2C protocol interface. The main camera system can be used as a host machine of an I2C protocol, a brightness detection device, a supplementary lighting and the like can be used as a slave machine of an I2C protocol, and the corresponding slave machine is selected to establish connection according to the instruction of the host machine, so that bidirectional data transmission between the host machine and the slave machine is realized.
In an embodiment, the brightness detection device may include an analog-to-digital converter and an ambient brightness detector. And the analog-to-digital converter controls the ambient brightness detector to start brightness detection according to the brightness acquisition instruction. The ambient brightness detector may include a photo sensor having a photo resistance that decreases as the ambient brightness increases. The optical signals are converted into electric signals and fed back to the analog-to-digital converter, the analog-to-digital converter converts the sampled analog electric signals into digital signals, the digital signals are fed back to the coaxial-MIPI conversion chip through an I2C protocol, and the digital signals are converted into coaxial data to be transmitted to a processor of the main camera system to judge the light brightness information.
In an embodiment, a brightness threshold value can be set according to parameters of the photosensitive sensor, after the processor acquires light brightness information, whether the light brightness information is smaller than the brightness threshold value is judged, and if the light brightness information is smaller than the brightness threshold value, a brightness acquisition instruction is continuously output to control brightness detection equipment of the auxiliary camera system to acquire an environment brightness value; if the brightness is larger than or equal to the brightness threshold, a brightness adjusting parameter is further calculated according to the light brightness information, wherein the brightness adjusting parameter may include brightness adjusting analog voltage information and the like. And the processor generates a light supplement control instruction according to the brightness adjusting parameter and transmits the light supplement control instruction to a light supplement lamp corresponding to the auxiliary camera system.
In an embodiment, the fill-in light may include a digital-to-analog converter and a fill-in light chip, where the digital-to-analog converter receives the fill-in light control command and converts the fill-in light control command into an analog signal for driving the fill-in light chip to output a fill-in light brightness value.
In an embodiment, the luminance adjustment parameter is mapped into a control value range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip, and the light supplement chip is driven to output a light supplement luminance value corresponding to the luminance adjustment parameter. Specifically, assuming that the driving voltage of the fill-in chip is 0.65V to 1.2V, the maximum output voltage of the DAC is 3.3V, and the DAC control value corresponding to the voltage of 3.3V is 256, the DAC value Y corresponding to the control voltage of 0.65V to 1.2V is 50V to 93V.
In an embodiment, the DAC value may be adjusted according to a client requirement, for example, an adjustable factor may be issued through a web end or other user terminals, where the adjustable factor may be an adjustment ratio of a fill-in light LED and the like at different DAC values. And adjusting the DAC value according to the adjustable factor. Please refer to table 1. The adjustable factor can be set to the brightness adjustment ratio of the LED of the fill-in lamp, such as 5%, 20% and the like. The LED fill-in luminance value is in direct proportion to the fill-in current, and the purpose of adjusting the fill-in luminance value can be achieved by adjusting the current.
TABLE 1
| DAC issues Y | Web delivery of X | ||
| DAC values | IC actual analog value V | Actual proportional value of LED | LED actual circuit mA |
| 50 | 0.65 | 5％ | 20 |
| 52 | 0.679 | 10％ | 40 |
| 58 | 0.746 | 20％ | 80 |
| 61 | 0.795 | 30％ | 120 |
| 66 | 0.853 | 40％ | 160 |
| 70 | 0.911 | 50％ | 200 |
| 75 | 0.969 | 60％ | 240 |
| 80 | 1.027 | 70％ | 280 |
| 84 | 1.085 | 80％ | 320 |
| 88 | 1.143 | 90％ | 360 |
| 93 | 1.201 | 100％ | 400 |
Specifically, different calculation formulas can be adopted to determine the DAC value according to different brightness adjustment proportion requirements of the fill-in light, where X is 5% and 10%, and a corresponding formula can be represented as Y being 0.4X + 48; when X is 30% and 40%, the corresponding formula can be expressed as Y ═ X/2+ 46.
In another embodiment, when the main camera system and the auxiliary camera system are closer to each other, a wired or wireless connection may be selectively and directly established between the communication module of the main camera system and the communication module of the auxiliary camera system to transmit the corresponding instruction, so as to implement the light supplement control process in the foregoing steps.
Referring to fig. 2, the present embodiment provides a light supplement control apparatus for multiple camera systems, which is used to implement the light supplement control method for multiple camera systems in the foregoing embodiment. Since the technical principle of the system embodiment is similar to that of the method embodiment, repeated description of the same technical details is omitted.
In an embodiment, the multi-camera system fill-in light control apparatus includes a main control device 10 and a fill-in light control device 11, where the main control device 10 and the fill-in light control device 11 are configured to assist in performing the steps described in the foregoing method embodiments.
Optionally, the system comprises an instruction transmission module, configured to generate a brightness acquisition instruction through a processor of the main camera system, transmit the brightness acquisition instruction to one or more auxiliary camera systems, and control brightness detection equipment in the auxiliary camera systems to obtain light brightness information;
and the processor outputs a light supplement control instruction to the auxiliary camera system according to the light brightness information, and controls the brightness of a light supplement lamp in the auxiliary camera system.
Optionally, the auxiliary camera system further comprises a parameter obtaining module, configured to obtain a brightness adjustment parameter according to the light brightness information, and generate the supplementary lighting control instruction through the processor, so as to control the brightness of the supplementary lighting in the auxiliary camera system.
Optionally, the supplementary lighting control instruction carries adjustment voltage information.
Optionally, the coaxial transmission system is configured to output a brightness acquisition instruction and/or a fill-in light control instruction to the auxiliary camera system by the main camera system through a coaxial transmission mode.
Optionally, the coaxial transmission system includes a coaxial data conversion module, configured to convert the brightness acquisition instruction and/or the fill-in light control instruction into coaxial data for output.
Optionally, the coaxial data conversion module at least includes an MIPI-coaxial conversion chip.
Optionally, the coaxial transmission system includes an analysis module, configured to analyze the luminance acquisition instruction and/or the fill-in light control instruction from the acquired coaxial data, and output an instruction for controlling the luminance detection device and/or the fill-in light to execute the corresponding instruction.
Optionally, the parsing module at least includes a coaxil-MIPI conversion chip.
Optionally, the system comprises a communication module, configured to transmit the brightness acquisition instruction and/or the fill-in light control instruction through a communication protocol.
Optionally, the communication protocol includes at least I2C protocol, MIPI protocol.
Optionally, the brightness detection device at least comprises an analog-to-digital converter and an ambient brightness detector, and the analog-to-digital converter converts the light brightness information acquired by the ambient brightness detector into a digital signal and feeds the digital signal back to the processor.
Optionally, the processor judges whether the light brightness information reaches a preset brightness threshold, and if so, generates a light supplement control instruction and transmits the light supplement control instruction to a light supplement lamp in the corresponding auxiliary camera system for light supplement brightness control; and if the brightness threshold value is not reached, continuously outputting a brightness acquisition instruction.
Optionally, the light supplement lamp at least comprises a digital-to-analog converter and a light supplement chip, the digital-to-analog converter converts the light supplement control instruction into an analog signal, and the light supplement chip is driven to output a corresponding light supplement brightness value.
Optionally, the system comprises a luminance parameter conversion module, configured to map the luminance adjustment parameter into a control value range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip, so as to obtain a digital-to-analog conversion value;
and the digital-to-analog converter drives the light supplementing chip to output the light supplementing brightness value corresponding to the brightness adjusting parameter according to the digital-to-analog conversion value.
Optionally, the apparatus includes an adjustable factor setting module, configured to set an adjustable factor, and adjust the digital-to-analog conversion value according to the adjustable factor to adjust the fill-in luminance value
Optionally, the processor comprises one of: digital signal processor, micro control unit, central processing unit.
An embodiment of the present application further provides an apparatus, which may include: one or more processors; and one or more machine readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method of fig. 1. In practical applications, the device may be used as a terminal device, and may also be used as a server, where examples of the terminal device may include: the mobile terminal includes a smart phone, a tablet computer, an electronic book reader, an MP3 (Moving Picture Experts Group Audio Layer III) player, an MP4 (Moving Picture Experts Group Audio Layer IV) player, a laptop, a vehicle-mounted computer, a desktop computer, a set-top box, an intelligent television, a wearable device, and the like.
The embodiment of the present application further provides a non-volatile readable storage medium, where one or more modules (programs) are stored in the storage medium, and when the one or more modules are applied to a device, the device may execute instructions (instructions) included in the fill light control method for a multi-camera system in fig. 1 according to the embodiment of the present application.
Fig. 3 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present application. As shown, the terminal device may include: an input device 1100, a first processor 1101, an output device 1102, a first memory 1103, and at least one communication bus 1104. The communication bus 1104 is used to implement communication connections between the elements. The first memory 1103 may include a high-speed RAM memory, and may also include a non-volatile storage NVM, such as at least one disk memory, and the first memory 1103 may store various programs for performing various processing functions and implementing the method steps of the present embodiment.
Alternatively, the first processor 1101 may be, for example, a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic components, and the processor 1101 is coupled to the input device 1100 and the output device 1102 through a wired or wireless connection.
Optionally, the input device 1100 may include a variety of input devices, such as at least one of a user-oriented user interface, a device-oriented device interface, a software programmable interface, a camera, and a sensor. Optionally, the device interface facing the device may be a wired interface for data transmission between devices, or may be a hardware plug-in interface (e.g., a USB interface, a serial port, etc.) for data transmission between devices; optionally, the user-facing user interface may be, for example, a user-facing control key, a voice input device for receiving voice input, and a touch sensing device (e.g., a touch screen with a touch sensing function, a touch pad, etc.) for receiving user touch input; optionally, the programmable interface of the software may be, for example, an entry for a user to edit or modify a program, such as an input pin interface or an input interface of a chip; the output devices 1102 may include output devices such as a display, audio, and the like.
In this embodiment, the processor of the terminal device includes a function for executing each module of the speech recognition apparatus in each device, and specific functions and technical effects may refer to the above embodiments, which are not described herein again.
Fig. 4 is a schematic hardware structure diagram of a terminal device according to another embodiment of the present application. Fig. 4 is a specific embodiment of fig. 3 in an implementation process. As shown, the terminal device of the present embodiment may include a second processor 1201 and a second memory 1202.
The second processor 1201 executes the computer program code stored in the second memory 1202 to implement the method described in fig. 1 in the above embodiment.
The second memory 1202 is configured to store various types of data to support operations at the terminal device. Examples of such data include instructions for any application or method operating on the terminal device, such as messages, pictures, videos, and so forth. The second memory 1202 may include a Random Access Memory (RAM) and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.
Optionally, the first processor 1201 is provided in the processing assembly 1200. The terminal device may further include: communication component 1203, power component 1204, multimedia component 1205, speech component 1206, input/output interfaces 1207, and/or sensor component 1208. The specific components included in the terminal device are set according to actual requirements, which is not limited in this embodiment.
The processing component 1200 generally controls the overall operation of the terminal device. The processing assembly 1200 may include one or more second processors 1201 to execute instructions to perform all or part of the steps of the method illustrated in fig. 1 described above. Further, the processing component 1200 can include one or more modules that facilitate interaction between the processing component 1200 and other components. For example, the processing component 1200 can include a multimedia module to facilitate interaction between the multimedia component 1205 and the processing component 1200.
The power supply component 1204 provides power to the various components of the terminal device. The power components 1204 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the terminal device.
The multimedia components 1205 include a display screen that provides an output interface between the terminal device and the user. In some embodiments, the display screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the display screen includes a touch panel, the display screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.
The voice component 1206 is configured to output and/or input voice signals. For example, the voice component 1206 includes a Microphone (MIC) configured to receive external voice signals when the terminal device is in an operational mode, such as a voice recognition mode. The received speech signal may further be stored in the second memory 1202 or transmitted via the communication component 1203. In some embodiments, the speech component 1206 further comprises a speaker for outputting speech signals.
The input/output interface 1207 provides an interface between the processing component 1200 and peripheral interface modules, which may be click wheels, buttons, etc. These buttons may include, but are not limited to: a volume button, a start button, and a lock button.
The sensor component 1208 includes one or more sensors for providing various aspects of status assessment for the terminal device. For example, the sensor component 1208 may detect an open/closed state of the terminal device, relative positioning of the components, presence or absence of user contact with the terminal device. The sensor assembly 1208 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact, including detecting the distance between the user and the terminal device. In some embodiments, the sensor assembly 1208 may also include a camera or the like.
The communication component 1203 is configured to facilitate communications between the terminal device and other devices in a wired or wireless manner. The terminal device may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In one embodiment, the terminal device may include a SIM card slot therein for inserting a SIM card therein, so that the terminal device may log onto a GPRS network to establish communication with the server via the internet.
As can be seen from the above, the communication component 1203, the voice component 1206, the input/output interface 1207 and the sensor component 1208 referred to in the embodiment of fig. 4 can be implemented as the input device in the embodiment of fig. 3.
In summary, according to the light supplement control method, device, equipment and medium for multiple camera systems, the MIPI-coaxial conversion circuit is controlled by the main camera system to realize coaxial data code stream transmission, and multiple slaves including ADC chips are mounted by using the I2C protocol interfaces of the interfaces for transmitting data and controlling protocol on the same axis to collect brightness and output analog voltage from the DAC chips, so as to realize control of the light supplement lamp driving chip, thereby realizing remote control of the light supplement lamp; the coaxial data transmission mode can effectively ensure the stability of remote data transmission; the auxiliary camera system and the main camera system share the processor, so that the equipment cost can be effectively reduced; the communication protocol I2C for controlling the main machine and the auxiliary machine is used for controlling corresponding devices to cooperate to complete the control of the long-distance light supplement lamp, so that the control of the light supplement lamp can be realized without PWM by the auxiliary camera system of the N-one equipment; the invention has strong stability, does not need to redesign the hardware structure of the original camera, and can effectively save the cost. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (36)
1. A light supplement control method based on a multi-camera system is characterized by comprising the following steps:
the main camera system obtains light brightness information through one or more auxiliary camera systems, outputs a light supplement control instruction to the auxiliary camera systems based on the light brightness information, and controls the brightness of light supplement lamps in the auxiliary camera systems.
2. The light supplement control method based on a multi-camera system according to claim 1, comprising:
generating a brightness acquisition instruction through a processor of a main camera system, transmitting the brightness acquisition instruction to one or more auxiliary camera systems, and controlling brightness detection equipment in the auxiliary camera systems to acquire the light brightness information;
and the processor outputs a light supplement control instruction to the auxiliary camera system according to the light brightness information, and controls the brightness of a light supplement lamp in the auxiliary camera system.
3. A light supplement control method based on multiple camera systems according to claim 2, wherein a brightness adjustment parameter is obtained according to the light brightness information, and the processor generates the light supplement control command to control the brightness of a light supplement lamp in the auxiliary camera system.
4. A light supplement control method based on a multi-camera system according to claim 2, wherein the light supplement control command carries adjustment voltage information.
5. The light supplement control method based on multiple camera systems according to claim 2, wherein the main camera system outputs the brightness acquisition command and/or the light supplement control command to the auxiliary camera system by means of coaxial transmission.
6. The light supplement control method based on the multiple camera systems according to claim 5, wherein the main camera system converts the brightness acquisition command and/or the light supplement control command into coaxial data through a coaxial data conversion module and outputs the coaxial data.
7. The light supplement control method based on the multi-camera system according to claim 6, wherein the coaxial data conversion module at least comprises an MIPI-coaxial conversion chip.
8. A light supplement control method based on a multi-camera system according to claim 6, wherein the auxiliary camera system analyzes the brightness acquisition command and/or the light supplement control command from the obtained coaxial data through an analysis module, and controls the brightness detection device and/or the light supplement lamp to execute the corresponding command.
9. A light supplement control method for a multi-camera system according to claim 8, wherein the analysis module at least includes a coaxial-MIPI conversion chip.
10. The method for controlling supplementary lighting of multiple camera modules according to claim 2, wherein the brightness acquisition command and/or the supplementary lighting control command are transmitted via a communication protocol.
11. The method for controlling supplementary lighting of multiple camera modules according to claim 10, wherein the communication protocol at least includes I2C protocol and MIPI protocol.
12. The light supplement control method for multiple camera systems according to claim 2, wherein the brightness detection device at least comprises an analog-to-digital converter and an ambient brightness detector, and the analog-to-digital converter converts the light brightness information obtained by the ambient brightness detector into a digital signal and feeds the digital signal back to the processor.
13. The light supplement control method for the multiple camera systems according to claim 12, wherein the processor determines whether the light brightness information reaches a preset brightness threshold, and if so, generates the light supplement control command and transmits the light supplement command to a light supplement lamp in a corresponding auxiliary camera system for light supplement brightness control; and if the brightness threshold value is not reached, continuously outputting the brightness acquisition instruction.
14. The light supplement control method for a multi-camera system according to claim 13, wherein the light supplement lamp at least includes a digital-to-analog converter and a light supplement chip, and the digital-to-analog converter converts the light supplement control command into an analog signal to drive the light supplement chip to output a corresponding light supplement brightness value.
15. The light supplement control method for a multi-camera system according to claim 14, wherein the brightness adjustment parameter is mapped into a control value range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip to obtain a digital-to-analog conversion value;
and the digital-to-analog converter drives the light supplementing chip to output the corresponding light supplementing brightness value according to the digital-to-analog conversion value.
16. The method for controlling fill-in light of multiple camera systems of claim 15, wherein an adjustable factor is set, and the light brightness value is adjusted by adjusting the dac value according to the adjustable factor.
17. The method for controlling fill-in light of multiple camera modules according to claim 2, wherein the processor comprises one of: digital signal processor, micro control unit, central processing unit.
18. The utility model provides a many camera systems light filling controlling means which characterized in that includes:
the main control equipment is used for acquiring light brightness information by the main camera system through one or more auxiliary camera systems;
and the light supplement control equipment is used for outputting a light supplement control instruction to the auxiliary camera system according to the light brightness information and controlling the brightness of a light supplement lamp in the auxiliary camera system.
19. A light supplement control device based on multiple camera systems according to claim 18, comprising an instruction transmission module, configured to generate a brightness acquisition instruction through a processor of a main camera system, transmit the brightness acquisition instruction to one or more auxiliary camera systems, and control a brightness detection device in the auxiliary camera systems to obtain the light brightness information;
and the processor outputs a light supplement control instruction to the auxiliary camera system according to the light brightness information, and controls the brightness of a light supplement lamp in the auxiliary camera system.
20. A light supplement control device based on multiple camera systems as claimed in claim 19, comprising a parameter obtaining module configured to obtain a brightness adjustment parameter according to the light brightness information, and generate the light supplement control command through the processor to control the brightness of a light supplement lamp in the auxiliary camera system.
21. A multi-camera system-based supplementary lighting control apparatus according to claim 19, wherein the supplementary lighting control command carries adjustment voltage information.
22. The multi-camera system-based supplementary lighting control device according to claim 19, wherein the coaxial transmission system is configured to output the brightness acquisition command and/or the supplementary lighting control command to the auxiliary camera system by the main camera system through a coaxial transmission mode.
23. A supplementary lighting control device according to claim 22, wherein the coaxial transmission system comprises a coaxial data conversion module configured to convert the brightness acquisition command and/or the supplementary lighting control command into coaxial data for output.
24. A light supplement control device based on multiple camera systems as claimed in claim 23, wherein the coaxial data conversion module at least includes an MIPI-coaxial conversion chip.
25. A light supplement control device based on a multi-camera system according to claim 24, wherein the coaxial transmission system comprises an analysis module, configured to analyze the luminance acquisition command and/or the light supplement control command from the obtained coaxial data, and output a command for controlling the luminance detection device and/or the light supplement lamp to execute the corresponding command.
26. A fill-in light control apparatus for a multi-camera system according to claim 25, wherein the analysis module at least includes a coaxial-MIPI conversion chip.
27. The multi-camera module supplementary lighting control device according to claim 19, comprising a communication module configured to transmit the brightness acquisition command and/or the supplementary lighting control command via a communication protocol.
28. The multi-camera module fill-in light control device of claim 27, wherein the communication protocol at least includes I2C protocol and MIPI protocol.
29. The light supplement control device for multiple camera systems according to claim 19, wherein the brightness detection device comprises at least an analog-to-digital converter and an ambient brightness detector, and the analog-to-digital converter converts the light brightness information obtained by the ambient brightness detector into a digital signal and feeds the digital signal back to the processor.
30. The device for controlling light supplement of a multi-camera system according to claim 29, wherein the processor determines whether the light brightness information reaches a preset brightness threshold, and if so, generates the light supplement control command and transmits the light supplement command to a light supplement lamp of a corresponding auxiliary camera system for light supplement brightness control; and if the brightness threshold value is not reached, continuously outputting the brightness acquisition instruction.
31. The device for controlling light supplement of a multi-camera system according to claim 30, wherein the light supplement lamp comprises at least a digital-to-analog converter and a light supplement chip, and the digital-to-analog converter converts the light supplement control command into an analog signal to drive the light supplement chip to output a corresponding light supplement brightness value.
32. The light supplement control device for a multi-camera system according to claim 31, comprising a luminance parameter conversion module, configured to map the luminance adjustment parameter into a control value range of the digital-to-analog converter according to a value range of a driving voltage of the light supplement chip, so as to obtain a digital-to-analog conversion value;
and the digital-to-analog converter drives the light supplementing chip to output the light supplementing brightness value corresponding to the brightness adjusting parameter according to the digital-to-analog conversion value.
33. A light supplement control device for multiple camera systems according to claim 32, comprising an adjustable factor setting module configured to set an adjustable factor, and adjust the digital-to-analog conversion value according to the adjustable factor to adjust the light supplement brightness value.
34. The multi-camera module fill-in light control device of claim 19, wherein the processor comprises one of: digital signal processor, micro control unit, central processing unit.
35. An apparatus, comprising:
one or more processors; and
one or more machine-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method recited by one or more of claims 1-17.
36. One or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause an apparatus to perform the method recited by one or more of claims 1-17.
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