Image processing circuit

Abstract

The utility model discloses an image processing circuit, belongs to the technical field of image processing, and solves the problem that another mode is provided to ensure that a picture transmitted by a processor is kept clear. Comprising a video acquisition module for acquiring video images and converting the video images into electric signals; and a plurality of image transmission circuits, the input ends of the plurality of image transmission circuits are coupled with the output end of the video acquisition module, and the image transmission circuits transmit and process the electric signals of the video images. When the device works, the video acquisition module captures an image and converts the image into an electric signal, the synchronous separator extracts a synchronous pulse, the filter reduces noise, the digital signal processor optimizes the image, the encoder compresses the signal, the decoder recovers a video, and the DAC converts the signal into an analog signal for display, and a user controls the decoder to drive the relay through the microcontroller. The number of image transmission circuits is adjusted according to image definition, and the display effect is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of image processing, and particularly relates to an image processing circuit. Background Art

[0002] An image processing circuit is an electronic system specifically designed to capture, process, and improve image quality. It typically includes an image sensor, an analog-to-digital converter (ADC), a microcontroller or a digital signal processor (DSP), a memory, and a necessary power management unit. These components work together to convert real-world scenes into high-quality digital images. The image sensor is responsible for capturing the optical signals of the scene and converting them into electrical signals, and the ADC then converts these analog signals into digital form. The microcontroller or DSP is responsible for controlling the working state of the image sensor and executing advanced image processing algorithms. The memory is used to temporarily store the processed image data, and the power management unit ensures that all components obtain a stable power supply.

[0003] However, during the image transmission process, the image quality may be degraded due to various factors, and this phenomenon is called image transmission distortion. The reasons for distortion may include signal attenuation, electromagnetic interference, signal synchronization problems, incorrect signal amplification, or incompatible transmission media. These problems may cause noise, blurring, color deviation, or frame loss in the image, affecting the clarity and reliability of the image.

[0004] Currently, to address the problem of picture distortion, it is mainly achieved by reducing the signal-to-noise ratio. Specifically, the electrical signals transmitted by the image sensor are amplified through operations to reduce the signal-to-noise ratio. Another method is needed to ensure that the image transmitted by the final processor remains clear.

[0005] Therefore, an image processing circuit is proposed to solve or alleviate the above problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide an image processing circuit to solve the deficiencies existing in the prior art.

[0007] To achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An image processing circuit includes

[0009] a video acquisition module, which acquires video images and converts them into electrical signals;

[0010] an image transmission circuit. The number of the image transmission circuits is several. The input ends of the several image transmission circuits are all coupled to the output end of the video acquisition module, and the image transmission circuit transmits and processes the electrical signals of the video images;

[0011] A processor that acquires video image electrical signals from several image transmission circuits and combines and processes them to obtain images;

[0012] A switching circuit coupled between the processor and several image transmission circuits, which controls the number of paths between the several image transmission circuits and the processor.

[0013] Preferably, the switching circuit includes

[0014] Relays, the number of which is the same as the number of image transmission circuits, and the relays are controlled to turn on and off the image transmission circuits;

[0015] A microcontroller that inputs user demand input instructions and outputs instruction signals;

[0016] A decoder, the input end of which is coupled to the output end of the microcontroller, and the output end of which is coupled to the input ends of each relay. The decoder responds to the instruction signal and performs logical conversion according to the instruction signal of the microcontroller to drive the relay to work.

[0017] Preferably, the image transmission circuit includes

[0018] A sync separator, the input end of which is coupled to the output end of the video acquisition module, and which extracts sync pulse signals from the video image electrical signals;

[0019] A filter, the input end of which is coupled to the output end of the sync separator, and which removes noise in the sync pulse signals;

[0020] A digital signal processor, the input end of which is coupled to the output end of the filter, and the digital signal processor processes the video image electrical signals processed by the filter;

[0021] An encoder, the input end of which is coupled to the output end of the digital signal processor, and which compresses and encodes the processed video image electrical signals;

[0022] A video decoding module, the input end of which is coupled to the output end of the encoder, and which decodes the compressed video image electrical signals to restore them to the original or nearly original digital video signals;

[0023] A digital-to-analog converter, the input end of which is coupled to the output end of the video decoding module, and the digital-to-analog converter converts the digital video signals back to analog signals.

[0024] Preferably, a display is further included, and the display is coupled to the processor, and the display converts the analog signal into a visible image.

[0025] Preferably, the number of the image transmission circuits is 2 - 7.

[0026] Preferably, the microcontroller is an STM32F103C8T6 single-chip microcomputer, and the decoder is a 74HC138 decoder.

[0027] Preferably, the video acquisition module is a MOS image sensor, the synchronous separator is a TLC394 separator, the digital signal processor is a TMS320C6678 DSP processor, the encoder is an A12S chip, and the video decoder is an RTD2660 chip.

[0028] The utility model has the following beneficial effects:

[0029] When the utility model works, the video acquisition module captures an image and converts it into an electrical signal. The synchronous separator extracts the synchronous pulse, the filter reduces noise, the digital signal processor optimizes the image, the encoder compresses the signal, the decoder restores the video, and the DAC converts it into an analog signal for display. The user controls the decoder to drive the relay through the microcontroller, adjusts the number of image transfer circuits according to the image clarity, and optimizes the display effect. Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0031] Figure 1 is the structural block diagram of the present utility model;

[0032] Figure 2 is the structural block diagram of the switching circuit in the present utility model;

[0033] Figure 3 is the wiring diagram of the microcontroller and the decoder in the present utility model.

[0034] 1. Video acquisition module; 2. Synchronous separator; 3. Filter; 4. Digital signal processor; 5. Encoder; 6. Video decoding module; 7. Digital-to-analog converter; 8. Switching circuit; 801. Microcontroller; 802. Decoder; 803. Relay; 9. Processor; 10. Display. Detailed Embodiments

[0035] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0037] It should be noted that: like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present utility model is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0039] In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] An image processing circuit, such as Figure 1As shown, it includes a video acquisition module 1, an image transmission circuit, a processor 9, a switching circuit 8, and a display 10. Among them, the number of image transmission circuits is 2 - 7.

[0042] The video acquisition module 1 acquires video images and converts them into electrical signals. The number of image transmission circuits is several. The input ends of several image transmission circuits are all coupled to the output end of the video acquisition module 1. The image transmission circuits transmit and process the electrical signals of the video images. The processor 9 acquires the video image electrical signals from several image transmission circuits and combines and processes them to obtain images. The switching circuit 8 is coupled between the processor 9 and several image transmission circuits, and it controls the number of paths between several image transmission circuits and the processor 9. The display 10 is coupled to the processor 9, and the display 10 converts the analog signal into a visible image.

[0043] Among them,

[0044] Such as Figure 2 and Figure 3 As shown, the switching circuit 8 includes a relay 803, a microcontroller 801, and a decoder 802. The microcontroller 801 is an STM32F103C8T6 single-chip microcomputer, and the decoder 802 is a 74HC138 decoder.

[0045] The number of relays 803 is the same as the number of image transmission circuits. The relays 803 are controlled to turn the image transmission circuits on and off. The microcontroller 801 inputs user demand input instructions and outputs instruction signals. The input end of the decoder 802 is coupled to the output end of the microcontroller 801, and the output end of the decoder 802 is coupled to the input ends of each relay 803. The decoder 802 responds to the instruction signal and performs logic conversion according to the instruction signal of the microcontroller 801 to drive the relay 803 to work.

[0046] And such as Figure 1 As shown, the image transmission circuit includes a sync separator 2, a filter 3, a digital signal processor 4, an encoder 5, a video decoding module 6, and a digital-to-analog converter 7.

[0047] The input end of the synchronization separator 2 is coupled to the output end of the video acquisition module 1. It extracts the synchronization pulse signal from the video image electrical signal. The input end of the filter 3 is coupled to the output end of the synchronization separator 2. It removes the noise in the synchronization pulse signal. The input end of the digital signal processor 4 is coupled to the output end of the filter 3. The digital signal processor 4 processes the video image electrical signal processed by the filter 3. The input end of the encoder 5 is coupled to the output end of the digital signal processor 4. It compresses and encodes the processed video image electrical signal. The input end of the video decoding module 6 is coupled to the output end of the encoder 5. It decodes the compressed video image electrical signal and restores it to the original or nearly original digital video signal. The input end of the digital-to-analog converter 7 is coupled to the output end of the video decoding module 6. The digital-to-analog converter 7 converts the digital video signal back to an analog signal.

[0048] In the above image transmission circuit, the video acquisition module 1 is a MOS image sensor, the synchronization separator 2 is a TLC394 separator, the digital signal processor 4 is a TMS320C6678 DSP processor, the encoder 5 is an A12S chip, and the video decoder is an RTD2660 chip.

[0049] When the present utility model is actually working, the video acquisition module 1 is used to extract the video image and convert the video image into an electrical signal for transmission. When the video image electrical signal enters the image transmission circuit, the video image electrical signal will first enter the synchronization separator 2. The synchronization separator 2 extracts the synchronization pulse from the video signal to ensure the correct timing of image display, including horizontal and vertical synchronization signals. Then, the filter 3 is used to remove the noise and unnecessary frequency components in the video to improve the image quality. Then it is transmitted to the digital signal processor 4, which processes the video image electrical signal, such as denoising, sharpening, color correction, edge enhancement, etc., to improve the image quality. Then the processed video image electrical signal is given to the encoder 5 for compression encoding to reduce the data volume for easy storage and transmission. The video decoding module 6 decodes the compressed video image electrical signal and restores it to the original or nearly original digital video signal. Then the digital video signal is converted back to an analog signal to display the image on the analog display 10. After that, the microcontroller 801 is controlled according to the user's needs, inputting commands and outputting command signals according to the needs. The decoder 802 performs logical conversion according to the command signals to provide sufficient current driving ability to drive the relay 803 to work. Finally, the relays 803 with the number meeting the user's needs work, so that the corresponding number of image transmission circuits work and transmit data to the processor 9. If the image finally displayed on the display 10 is clear, there is no need to increase the number of image transmission circuits. If it is not clear, the number of conducting image transmission circuits is increased to provide more image data for the processor 9 to merge and process to obtain a clearer image.

[0050] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An image processing circuit, characterized in that, including a video acquisition module (1) that acquires video images and converts them into electrical signals; image transfer circuits, the number of the image transfer circuits being several, the input ends of the several image transfer circuits being coupled to the output end of the video acquisition module (1), and the image transfer circuits transferring and processing the electrical signals of the video images; a processor (9) that acquires the video image electrical signals from several image transfer circuits and combines and processes them to obtain images; a switching circuit (8) that is coupled between the processor (9) and several image transfer circuits and controls the number of paths between the several image transfer circuits and the processor (9).

2. The image processing circuit according to claim 1, wherein The switching circuit (8) includes relays (803), the number of the relays (803) being the same as the number of the image transfer circuits, and the relays (803) being controlled to control the on / off of the image transfer circuits; a microcontroller (801) that inputs user demand input instructions and outputs instruction signals; a decoder (802), the input end of the decoder (802) being coupled to the output end of the microcontroller (801), the output end of the decoder (802) being coupled to the input ends of the respective relays (803), and the decoder (802) responding to the instruction signals and performing logic conversion according to the instruction signals of the microcontroller (801) to drive the relays (803) to work.

3. An image processing circuit according to claim 1, characterized in that, The image transfer circuit includes a sync separator (2), the input end of which is coupled to the output end of the video acquisition module (1), and which extracts sync pulse signals from the video image electrical signals; a filter (3), the input end of which is coupled to the output end of the sync separator (2), and which removes noise in the sync pulse signals; a digital signal processor (4), the input end of which is coupled to the output end of the filter (3), and the digital signal processor (4) processes the video image electrical signals processed by the filter (3); an encoder (5), the input end of which is coupled to the output end of the digital signal processor (4), and which compresses and encodes the processed video image electrical signals; a video decoding module (6), the input end of which is coupled to the output end of the encoder (5), and which decodes the compressed video image electrical signals to restore them to original or near-original digital video signals; a digital-to-analog converter (7), the input end of which is coupled to the output end of the video decoding module (6), and the digital-to-analog converter (7) converts the digital video signals back into analog signals.

4. An image processing circuit according to claim 1, wherein It further includes a display (10), the display (10) being coupled to the processor (9), and the display (10) converting the analog signals into visible images.

5. An image processing circuit according to claim 1, wherein The number of the image transfer circuits is 2 - 7.

6. An image processing circuit according to claim 2, characterized in that, The microcontroller (801) is an STM32F103C8T6 single-chip microcomputer, and the decoder (802) is a 74HC138 decoder.

7. An image processing circuit according to claim 3, wherein The video acquisition module (1) is a MOS image sensor, the sync separator (2) is a TLC394 separator, the digital signal processor (4) is a TMS320C6678DSP processor, the encoder (5) is an A12S chip, and the video decoding module (6) is an RTD2660 chip.

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