CN112887632A - Monitoring equipment rapid photographing processing method and device, monitoring equipment and storage - Google Patents
Monitoring equipment rapid photographing processing method and device, monitoring equipment and storage Download PDFInfo
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- H—ELECTRICITY
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- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
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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
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
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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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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/80—Camera processing pipelines; Components thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/2621—Cameras specially adapted for the electronic generation of special effects during image pickup, e.g. digital cameras, camcorders, video cameras having integrated special effects capability
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Abstract
The invention discloses a monitoring equipment quick photographing processing method, which comprises the following steps: when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor; when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to the DSP processor, wherein the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal; and when the DSP finishes processing the digital image signal and obtains a corresponding picture, storing the picture. The monitoring equipment rapid photographing processing method can realize rapid photographing processing of the monitoring equipment, improve photographing performance and enhance photographing effect. In addition, the invention also discloses a monitoring device rapid photographing processing device, a monitoring device and a memory.
Description
Technical Field
The invention relates to the technical field of monitoring equipment, in particular to a monitoring equipment rapid photographing processing method and device, monitoring equipment and a memory.
Background
With the rapid development of monitoring technology and the general improvement of safety awareness of people, video monitoring is spread in various fields, and the market demand of monitoring equipment is larger and larger.
It is known that because people and animals all have constant body temperature, so can send the infrared ray of specific wavelength, at present, generally dispose PIR thermal infrared sensor on the supervisory equipment, when people or animal appear in the control range, the infrared ray that sends can be detected by the thermal infrared sensor on the supervisory equipment, and this infrared ray passes through fresnel lens reinforcing back and gathers on the infrared induction source to produce the signal and shoot with triggering the camera.
However, at present, when a person or an animal passes through the monitoring device quickly in the monitoring range of the monitoring device, the monitoring device may easily take an image of the person or the animal due to the fact that a photographing signal cannot be triggered timely and the image processing speed is too slow, or the photographed image of the person or the animal is not complete, and the photographing performance is poor and the photographing effect is poor.
Disclosure of Invention
The invention mainly aims to provide a monitoring device quick photographing processing method, and aims to solve the technical problems of poor photographing performance and poor photographing effect of the conventional monitoring device.
In order to achieve the above object, the present invention provides a monitoring device fast photographing processing method, which includes:
when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor;
when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to a DSP (digital signal processor), wherein the DSP loads a processing program through a FLASH memory based on four-wire SPI (serial peripheral interface) communication and adopts a quick AE (automatic exposure) algorithm to perform automatic exposure processing on the received digital image signal;
and when the DSP processor finishes processing the digital image signal and obtains a corresponding picture, storing the picture.
Preferably, before the step of initializing the image sensor and acquiring an image through the image sensor when the photographing start signal is received, the monitoring device quick photographing processing method further includes:
and when the PIR infrared sensor senses that a person or an animal passes through the monitoring range, generating the photographing starting signal and sending the photographing starting signal.
Preferably, when the PIR infrared sensor senses that a person or an animal passes through the monitoring range, the step of generating and sending the photographing start signal includes:
when the PIR infrared sensor receives heat radiated by a human or an animal and converts a heat signal into an electric signal, the electric signal is amplified by a preset multiple through a signal amplification circuit and is converted into a photographing starting signal in a digital signal form through a signal conversion circuit.
Optimally, when the image sensor acquires a first frame original image, the first frame original image is converted into a corresponding digital image signal and is sent to the DSP processor, and the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and performs automatic exposure processing on the received digital image signal by using a fast AE algorithm includes:
and when the DSP processor loads the processing program through a FLASH memory based on four-wire SPI interface communication, other initialization programs are forbidden to be loaded.
The invention also provides a monitoring device fast photographing processing device, which comprises:
the image acquisition module is used for initializing the image sensor and acquiring an image through the image sensor when receiving a photographing starting signal;
the image processing module is used for converting a first frame of original image into a corresponding digital image signal and sending the digital image signal to the DSP processor when the image sensor acquires the first frame of original image, and the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal;
and the picture storage module is used for storing the picture when the DSP finishes processing the digital image signal and obtains the corresponding picture.
Preferably, the monitoring device snapshot processing apparatus further includes:
and the photographing starting signal sending module is used for generating and sending the photographing starting signal when the PIR infrared sensor senses that people or animals pass through the monitoring range.
Preferably, the photographing start signal sending module includes:
and the processing unit is used for converting the thermal signal into the electric signal when the PIR infrared sensor receives the heat radiated by the human or animal, amplifying the electric signal by a preset multiple through a signal amplification circuit and converting the electric signal into the photographing starting signal in a digital signal form through a signal conversion circuit.
Preferably, the image processing module includes:
and the execution unit is used for prohibiting loading other initialization programs when the DSP processor loads the processing program through a FLASH memory based on four-wire SPI interface communication.
The invention also provides monitoring equipment which comprises the monitoring equipment rapid photographing processing device.
The invention also provides a memory, wherein the memory is stored with an embedded program, and the embedded program realizes at least the following steps of the monitoring equipment fast photographing processing method when being executed by the processor:
when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor;
when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to the DSP processor, wherein the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal;
and when the DSP processor finishes processing the digital image signal and obtains a corresponding picture, storing the picture.
Compared with the prior art, the technical scheme of the embodiment of the invention has the beneficial effects that:
in the rapid photographing processing method of the monitoring equipment, firstly, when a photographing starting signal is received, an image sensor is initialized, and an image is obtained through the image sensor; then when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to the DSP processor, and the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal; and finally, when the DSP finishes processing the digital image signals and obtains the corresponding pictures, storing the pictures. The rapid photographing processing method of the monitoring equipment can shorten the photographing processing time through the rapid starting processing of the DSP and the processing coordination of the rapid AE algorithm, can realize the rapid photographing processing of the monitoring equipment when people or animals passing through rapidly meet, improves the photographing performance and strengthens the photographing effect.
Drawings
Fig. 1 is a flowchart of a fast photographing processing method of a monitoring device in an embodiment of the present invention;
FIG. 2 is a flowchart of a snapshot processing method of a monitoring device according to another embodiment of the present invention;
FIG. 3 is a flowchart illustrating a fast photographing processing method of a monitoring device according to another embodiment of the present invention;
FIG. 4 is a flowchart illustrating a fast photographing processing method of a monitoring device according to another embodiment of the present invention;
fig. 5 is a block diagram of a snapshot processing apparatus of a monitoring device according to an embodiment of the present invention.
Detailed Description
In the following, the embodiments of the present invention will be described in detail with reference to the drawings in the following, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and 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 invention.
The invention provides a monitoring device quick photographing processing method, and with reference to fig. 1, the monitoring device quick photographing processing method comprises the following steps:
step S10: when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor;
step S20: when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to the DSP processor, wherein the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal;
step S30: and when the DSP finishes processing the digital image signal and obtains a corresponding picture, storing the picture.
In the present embodiment, the monitoring device includes various components, such as an image sensor, a DSP processor, and the like, and the image sensor can convert an optical image into an electronic signal, which generally includes both CMOS and CCD. Preferably, in the monitoring device rapid photographing processing method, the image sensor adopts an image sensor with a high output frame rate, and the purpose is to accelerate the image output speed and shorten the photographing processing time. The DSP processor, i.e. the digital signal processor, is used to implement processing of digital image signals, where the AE (automatic exposure), i.e. automatic exposure, is a mechanism for automatically adjusting exposure and gain according to the intensity of external light and preventing overexposure or underexposure, and the implementation process generally includes light intensity measurement, scene analysis, exposure compensation, etc., and the DSP processor uses a fast AE algorithm to perform automatic exposure processing of images. In addition, the DSP may also perform automatic white balance, color correction, and other functional processes, which are used for some common image processing and are not described herein again. In this embodiment, the DSP processor loads the processing program, the used FLASH memory is based on four-wire SPI interface communication, the processing program can run quickly, data can be transmitted quickly and efficiently, and software startup time can be shortened.
The monitoring device fast photographing processing method based on the steps S10-S30 can shorten the photographing processing time and realize fast photographing processing of the monitoring device through the cooperation of fast start processing of the DSP processor and processing of the fast AE algorithm, thereby improving the photographing performance and enhancing the photographing effect.
In a preferred embodiment, referring to fig. 2, before the step of initializing the image sensor and acquiring an image through the image sensor when the photographing start signal is received, the monitoring device quick photographing processing method further includes:
step S40: when the PIR infrared sensor senses that a person or an animal passes through the monitoring range, a photographing starting signal is generated and sent.
Specifically, the PIR infrared sensor, i.e., the pyroelectric infrared sensor according to this embodiment has the advantages of high sensitivity, low device power consumption, low price, and the like. When the PIR infrared sensor senses a person or an animal, the PIR infrared sensor sends a signal to an MCU singlechip of the monitoring equipment so as to control the start of a photographing function through the MCU singlechip. Preferably, the MCU singlechip adopts a low-power MCU singlechip, which is beneficial to improving the signal transmission processing speed and further accelerating the photographing speed.
In a preferred embodiment, referring to fig. 3, step S40 includes:
step S41: when the PIR infrared sensor receives heat radiated by a human or an animal and converts a heat signal into an electric signal, the electric signal is amplified by a preset multiple through a signal amplification circuit and is converted into a photographing starting signal in a digital signal form through a signal conversion circuit.
In the implementation step, the PIR infrared sensor enhances the infrared radiation of people or animals through the Fresnel lens and the optical filter and then gathers the infrared radiation of people or animals on the pyroelectric element, the pyroelectric infrared element loses charge balance to release charges outwards when receiving the change of the infrared radiation temperature of people or animals, namely, a thermal signal is converted into an electric signal, and then the electric signal is amplified by a preset multiple through a signal amplification circuit and is converted into a photographing starting signal in a digital signal form through a signal conversion circuit. The signal amplifying circuit and the signal converting circuit are functional circuits commonly used in the art, and the circuit composition and design thereof may be various and will not be described in detail herein. In addition, the Fresnel lens is preferably made of a high-sensitivity and low-false-alarm-rate material, so that the sensing speed of the PIR infrared sensor can be improved.
In a preferred embodiment, referring to fig. 4, step S20 includes:
step S21: when the DSP processor loads the processing program through the FLASH memory based on the four-wire SPI interface communication, other initialization programs are prohibited from being loaded.
In the implementation step, the loading of other initialization programs is prohibited, so that the image processing program of the DSP processor is guaranteed to be loaded preferentially and normally, the loading speed can be increased, that is, the starting time of the DSP processor is further shortened, and the rapid processing is realized. Other initialization procedures such as the initialization procedure of the monitor device screen and the keys, the initialization procedure of the USB interface, etc., including but not limited to these.
Based on the above monitoring device fast photographing processing method, the present invention further provides a monitoring device fast photographing processing apparatus, and referring to fig. 5, the monitoring device fast photographing processing apparatus includes:
the image acquisition module 10 is configured to initialize the image sensor and acquire an image through the image sensor when receiving a photographing start signal;
the image processing module 20 is configured to convert a first frame original image into a corresponding digital image signal and send the digital image signal to the DSP processor when the image sensor acquires the first frame original image, where the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and performs automatic exposure processing on the received digital image signal by using a fast AE algorithm;
and the picture storage module 30 is used for storing the pictures when the DSP finishes processing the digital image signals and obtains the corresponding pictures.
In a preferred embodiment, referring to fig. 5, the monitoring device snapshot processing apparatus further includes:
and the photographing starting signal sending module 40 is used for generating and sending a photographing starting signal when the PIR infrared sensor senses that a person or an animal passes through the monitoring range.
In a preferred embodiment, referring to fig. 5, the photographing start signal sending module 40 includes:
and the processing unit 41 is used for converting the thermal signal into an electric signal when the PIR infrared sensor receives heat radiated by a human or an animal, amplifying the electric signal by a preset multiple through the signal amplification circuit, and converting the electric signal into a photographing starting signal in a digital signal form through the signal conversion circuit.
In a preferred embodiment, referring to fig. 5, the image processing module 20 includes:
and the execution unit 21 is used for prohibiting other initialization programs from being loaded when the DSP processor loads the processing program through the FLASH memory based on the four-wire SPI interface communication.
The invention also provides monitoring equipment which comprises the monitoring equipment rapid photographing processing device.
The invention also provides a memory, wherein the memory is stored with an embedded program, and the embedded program realizes at least the following steps of the monitoring equipment fast photographing processing method when being executed by the processor:
step S10: when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor;
step S20: when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to the DSP processor, wherein the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal;
step S30: and when the DSP finishes processing the digital image signal and obtains a corresponding picture, storing the picture.
In the embodiments provided in the present invention, it should be understood that the disclosed method and apparatus can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules and components may be combined or integrated into another apparatus, 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 through some interfaces, the coupling or communication connection between devices or modules, and may be in an electrical, mechanical or other form.
Modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
In addition, functional modules in the embodiments of the present invention may be integrated into one processing module, or each of the modules may exist alone physically, or two or more modules are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The integrated module, if implemented in the form of a software functional module and sold or used as a separate product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of 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 invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It should be noted that, for the sake of simplicity, the above-mentioned method embodiments are described as a series of acts or combinations, but those skilled in the art should understand that the present invention is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no acts or modules are necessarily required of the invention.
In the foregoing embodiments, 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.
The above description is only a part of or preferred embodiments of the present invention, and neither the text nor the drawings should be construed as limiting the scope of the present invention, and all equivalent structural changes, which are made by using the contents of the present specification and the drawings, or any other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A monitoring device quick photographing processing method is characterized by comprising the following steps:
when a photographing starting signal is received, initializing an image sensor and acquiring an image through the image sensor;
when the image sensor acquires a first frame original image, converting the first frame original image into a corresponding digital image signal and sending the digital image signal to a DSP (digital signal processor), wherein the DSP loads a processing program through a FLASH memory based on four-wire SPI (serial peripheral interface) communication and adopts a quick AE (automatic exposure) algorithm to perform automatic exposure processing on the received digital image signal;
and when the DSP processor finishes processing the digital image signal and obtains a corresponding picture, storing the picture.
2. The monitoring device snapshot processing method of claim 1, wherein before the step of initializing an image sensor and acquiring an image through the image sensor when the snapshot start signal is received, the monitoring device snapshot processing method further comprises:
and when the PIR infrared sensor senses that a person or an animal passes through the monitoring range, generating the photographing starting signal and sending the photographing starting signal.
3. The monitoring device snapshot processing method of claim 2, wherein the step of generating and sending the picture-taking start signal when the PIR infrared sensor senses that a person or an animal passes through the monitoring range includes:
when the PIR infrared sensor receives heat radiated by a human or an animal and converts a heat signal into an electric signal, the electric signal is amplified by a preset multiple through a signal amplification circuit and is converted into a photographing starting signal in a digital signal form through a signal conversion circuit.
4. The monitoring device snapshot processing method of claim 1, wherein when the image sensor acquires a first frame of original image, the first frame of original image is converted into a corresponding digital image signal and sent to a DSP processor, and the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and performs automatic exposure processing on the received digital image signal by using a fast AE algorithm includes:
and when the DSP processor loads the processing program through a FLASH memory based on four-wire SPI interface communication, other initialization programs are forbidden to be loaded.
5. The utility model provides a supervisory equipment processing apparatus that shoots fast which characterized in that includes:
the image acquisition module is used for initializing the image sensor and acquiring an image through the image sensor when receiving a photographing starting signal;
the image processing module is used for converting a first frame of original image into a corresponding digital image signal and sending the digital image signal to the DSP processor when the image sensor acquires the first frame of original image, and the DSP processor loads a processing program through a FLASH memory based on four-wire SPI interface communication and adopts a quick AE algorithm to automatically expose the received digital image signal;
and the picture storage module is used for storing the picture when the DSP finishes processing the digital image signal and obtains the corresponding picture.
6. The monitoring device snapshot processing apparatus of claim 5, further comprising:
and the photographing starting signal sending module is used for generating and sending the photographing starting signal when the PIR infrared sensor senses that people or animals pass through the monitoring range.
7. The monitoring device snapshot processing apparatus of claim 6, wherein the photographing start signal sending module comprises:
and the processing unit is used for converting the thermal signal into the electric signal when the PIR infrared sensor receives the heat radiated by the human or animal, amplifying the electric signal by a preset multiple through a signal amplification circuit and converting the electric signal into the photographing starting signal in a digital signal form through a signal conversion circuit.
8. The monitoring device snapshot processing apparatus of claim 5, wherein the image processing module comprises:
and the execution unit is used for prohibiting loading other initialization programs when the DSP processor loads the processing program through a FLASH memory based on four-wire SPI interface communication.
9. A monitoring device characterized by comprising the monitoring device snapshot processing apparatus of any one of claims 5-8.
10. A memory, wherein the memory stores an embedded program, and the embedded program, when executed by the processor, implements the monitoring device snapshot processing method of any one of claims 1-4.
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| CN115665543A (en) * | 2022-11-04 | 2023-01-31 | 瑞芯微电子股份有限公司 | Method and apparatus for photographing image, electronic device, and storage medium |
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| CN209514813U (en) * | 2019-01-28 | 2019-10-18 | 上海联百商业设备有限公司 | A kind of intelligent burglary-resisting installation in market |
| CN110996439A (en) * | 2019-11-25 | 2020-04-10 | 上海电机学院 | Multifunctional intelligent lamp and automatic control method thereof |
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