Readout circuit adjusting method and system of X-ray direct imaging detector

Abstract

The invention provides a reading circuit adjusting method and system for an X-ray direct imaging detector, and the method comprises the steps: S1, receiving X-rays through an imaging detector, exciting electron hole pairs of a semiconductor material in the imaging detector, and converting X-ray photons into digital signals; s2, the reading circuit converts the digital signal into an image signal and amplifies the digital signal; s3, the image processing system analyzes and processes the image signal to generate a high-quality image; and S4, the adjustment system adjusts the generated high-quality image to improve the signal-to-noise ratio and definition of the image. The invention provides a reading circuit adjusting method and a reading circuit adjusting system for an X-ray direct imaging detector, which are used for solving the problems of blurring, artifacts and the like of an imaging result caused by the influence of equipment stability on the quality of X-ray imaging.

Description

Technical Field

[0001] The present invention relates to the technical field of X-ray imaging, and in particular to a readout circuit adjustment method and system for an X-ray direct imaging detector. Background Art

[0002] Since the 1920s, X-ray detection technology has begun to enter industrial applications. In the early days, this technology was mainly used in the medical field, such as X-ray photography, to observe the internal structure of the human body. With the development of computer technology and optoelectronic materials, X-ray detection technology has gradually shifted from traditional film imaging to digital imaging. This shift has greatly improved detection efficiency and image quality, making X-ray detection technology more widely used in the industrial field. Digital X-ray detection technology includes indirect digital imaging and direct digital imaging. Indirect digital imaging records X-ray information on the imaging plate through an image intensifier, and then reads and converts it into a digital image through a scanning device; while direct digital imaging uses discrete X-ray detectors such as flat-panel detectors to directly receive X-rays and convert them into digital signals, with higher detection speed and image quality. The quality of current X-ray imaging is affected by the stability of the equipment, resulting in problems such as blurring and artifacts in the imaging results, affecting the accuracy of the detection results. Summary of the invention

[0003] In view of the problems existing in the above background technology, the present invention proposes a readout circuit adjustment method and system for an X-ray direct imaging detector, which is used to solve the problem that the quality of X-ray imaging is affected by the stability of the equipment, resulting in blurring and artifacts in the imaging results. The technical solutions adopted are as follows:

[0004] A method for adjusting a readout circuit of an X-ray direct imaging detector, the method comprising:

[0005] S1: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals;

[0006] S2: The readout circuit converts the digital signal into an image signal and amplifies the digital signal;

[0007] S3: The image processing system analyzes and processes the image signal to generate high-quality images;

[0008] S4: The adjustment system adjusts the generated high-quality image to improve the signal-to-noise ratio and clarity of the image.

[0009] Preferably, the readout circuit includes: a dual sampling circuit, a sample-and-hold circuit, an analog-to-digital converter and an output buffer, and the signal output end of the dual sampling circuit is connected to the signal input end of the sampling and holding circuit, the signal output end of the sampling and holding circuit is connected to the signal input end of the analog-to-digital converter, and the signal output end of the analog-to-digital converter is connected to the signal input end of the output buffer.

[0010] Preferably, the S2 includes:

[0011] S21: the double sampling circuit performs reset signal adoption and integration signal adoption on the electrical signal collected by the readout circuit, subtracts the reset signal from the integration signal to obtain a net signal, and transmits the net signal to the sample and hold circuit;

[0012] S22: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, and the output buffer amplifies the digital signal.

[0013] Preferably, S3 includes:

[0014] S31: preprocessing the image signal, performing in-depth analysis and processing on the preprocessed image, and extracting key features in the image;

[0015] S32: Performing image enhancement processing according to the analysis result.

[0016] Preferably, the S4 includes:

[0017] S41: performing quality assessment on the generated image, and modifying relevant parameters of the image according to the assessment result;

[0018] S42: performing quality assessment on the modified image again to form a closed-loop feedback mechanism until the image quality reaches a specified value;

[0019] S43: Outputting the adjusted high-quality image to a display device or saving it to a storage device.

[0020] A readout circuit adjustment system for an X-ray direct imaging detector, the system comprising:

[0021] Imaging detector: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals;

[0022] Readout circuit: The readout circuit converts the digital signal into an image signal and amplifies the digital signal;

[0023] Image processing system: The image processing system analyzes and processes image signals to generate high-quality images;

[0024] Adjustment system: The adjustment system adjusts the generated high-quality images to improve the signal-to-noise ratio and clarity of the images.

[0025] Preferably, the readout circuit comprises:

[0026] Double sampling circuit: The double sampling circuit performs reset signal adoption and integration signal adoption on the electrical signal collected by the readout circuit, subtracts the reset signal from the integration signal to obtain a net signal, and transmits the net signal to the sample and hold circuit;

[0027] Conversion system: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal electrical level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, which amplifies the digital signal.

[0028] Preferably, the image processing system comprises:

[0029] Image processing system: pre-process the image signal, conduct in-depth analysis and processing on the pre-processed image, and extract key features from the image;

[0030] Image enhancement system: Enhance the image based on the analysis results.

[0031] Preferably, the adjustment system comprises:

[0032] Quality assessment system: evaluate the quality of the generated images and modify the relevant parameters of the images based on the assessment results;

[0033] Quality assessment loop system: The modified image is re-evaluated to form a closed-loop feedback mechanism until the image quality reaches the specified value;

[0034] Output system: Outputs the adjusted high-quality image to a display device or saves it to a storage device.

[0035] Beneficial effects of the invention: The invention proposes a readout circuit adjustment method and system for an X-ray direct imaging detector, which is used to solve the problem that the quality of X-ray imaging is affected by the stability of the equipment, resulting in blurring and artifacts in the imaging results. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A readout circuit adjustment method for an X-ray direct imaging detector according to the present invention;

[0037] Figure 2This is the readout circuit of the present invention. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0039] One embodiment of the present invention provides a method for adjusting a readout circuit of an X-ray direct imaging detector, the method comprising:

[0040] S1: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals;

[0041] S2: The readout circuit converts the digital signal into an image signal and amplifies the digital signal;

[0042] S3: The image processing system analyzes and processes the image signal to generate high-quality images;

[0043] S4: The adjustment system adjusts the generated high-quality image to improve the signal-to-noise ratio and clarity of the image.

[0044] The working principle and effect of the above technical solution are as follows: when X-rays are irradiated on the imaging detector, the semiconductor material inside the detector absorbs the energy of the X-rays. These energies are sufficient to excite the electrons in the semiconductor material, causing it to transition from the valence band to the conduction band, thereby generating electron-hole pairs inside the material. These electron-hole pairs are separated and collected under the action of the electric field to form electrical signals. The readout circuit is a key part connecting the imaging detector and the subsequent processing system. It is responsible for receiving the digital signal from the imaging detector and converting it into an image signal. This conversion process usually involves decoding, reorganizing and formatting the signal to form recognizable image data. At the same time, the readout circuit also amplifies the signal to enhance the signal strength and improve the signal-to-noise ratio. This is crucial to improving the clarity and quality of the image. The image processing system receives the image signal from the readout circuit and further analyzes and processes it. These processes include filtering, enhancing, sharpening, denoising, etc. of the image, aiming to improve the visual effect and quality of the image. The adjustment system includes a variety of algorithms and tools for adjusting parameters such as image brightness, contrast, color balance, etc. to further improve the signal-to-noise ratio and clarity of the image. Through these adjustment steps, the adjustment system can ensure that the final output image has the best visual effect and quality to meet the different needs and application scenarios of users. The semiconductor material inside the detector can efficiently absorb X-ray energy and convert it into electron-hole pairs, which are then converted into digital signals through the readout circuit. This efficient signal conversion capability enables the detector to capture X-ray image information quickly and accurately. In the process of converting digital signals into image signals, the readout circuit will amplify the signal. This step not only enhances the signal strength, but also helps to improve the signal-to-noise ratio and reduce the impact of noise on image quality. The image processing system performs fine analysis and processing on the image signal, including filtering, enhancement, sharpening, denoising and other steps. These processing steps can significantly improve the visual effect and quality of the image, making the generated image clearer and more delicate. The adjustment system allows users to further adjust and optimize the generated high-quality image. By adjusting parameters such as image brightness, contrast, and color balance, users can obtain the best visual effect according to actual needs. This flexible adjustment capability enables the detector to adapt to different application scenarios and needs.

[0045] In one embodiment of the present invention, the readout circuit includes: a dual sampling circuit, a sample-and-hold circuit, an analog-to-digital converter, and an output buffer, and the signal output end of the dual sampling circuit is connected to the signal input end of the sampling and holding circuit, the signal output end of the sampling and holding circuit is connected to the signal input end of the analog-to-digital converter, and the signal output end of the analog-to-digital converter is connected to the signal input end of the output buffer.

[0046] The working principle and effect of the above technical solution are as follows: the double sampling circuit is mainly used to perform preliminary processing on the signal after the detector receives X-rays and generates an analog signal. It samples the signal at two different time points, usually after the reset signal and the integration signal. The two sampling points correspond to the states of the detector when there is no X-ray irradiation and when there is X-ray irradiation. The output of the double sampling circuit is the signal difference between the two sampling points, which removes most of the fixed pattern noise and dark current and improves the signal-to-noise ratio of the signal. The sampling and holding circuit receives the signal difference from the double sampling circuit and keeps the signal stable for a period of time. This is because the conversion rate of the analog-to-digital converter cannot match the real-time changes of the detector signal, so a sampling and holding circuit is required to "freeze" the signal so that the ADC can perform accurate conversion. The output of the sampling and holding circuit is a stable analog signal, whose value corresponds to the signal difference output by the double sampling circuit. The analog-to-digital converter is the core part of the readout circuit, which converts the analog signal from the sampling and holding circuit into a digital signal. This conversion process is realized by circuits such as comparators and counters, which can quantize the continuous changes of the analog signal into a series of discrete digital values. The main function of the output buffer is to cache the digital signal output by the ADC and transmit it to the subsequent image processing system or storage device. Since the transmission speed of the digital signal may be limited by factors such as the interface and bus bandwidth, the output buffer can ensure the continuity and stability of the signal. The double sampling circuit in the readout circuit can remove most of the fixed pattern noise and dark current in the detector signal, thereby significantly improving the signal-to-noise ratio of the signal. The sample-and-hold circuit ensures that the signal received by the ADC during the conversion process is stable, avoiding the influence of signal fluctuations on the conversion accuracy. At the same time, the high-precision ADC can accurately quantize the analog signal into a digital signal, retaining the details and accuracy of the signal. This enables the generated digital image to truly reflect the original signal of the detector, improving the accuracy and reliability of the image. Modern readout circuits usually use high-speed ADCs and optimized circuit designs to achieve fast signal conversion and transmission.

[0047] In one embodiment of the present invention, S2 includes:

[0048] S21: the double sampling circuit performs reset signal adoption and integration signal adoption on the electrical signal collected by the readout circuit, subtracts the reset signal from the integration signal to obtain a net signal, and transmits the net signal to the sample and hold circuit;

[0049] S22: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, and the output buffer amplifies the digital signal.

[0050] The working principle and effect of the above technical solution are as follows: the double sampling circuit is mainly used to perform preliminary processing on the signal after the detector receives X-rays and generates an analog signal. It samples the signal at two different time points, usually after the reset signal and the integration signal. The two sampling points correspond to the states of the detector when there is no X-ray irradiation and when there is X-ray irradiation. The output of the double sampling circuit is the signal difference between the two sampling points, which removes most of the fixed pattern noise and dark current and improves the signal-to-noise ratio of the signal. The sampling and holding circuit receives the signal difference from the double sampling circuit and keeps the signal stable for a period of time. This is because the conversion rate of the analog-to-digital converter cannot match the real-time changes of the detector signal, so a sampling and holding circuit is required to "freeze" the signal so that the ADC can perform accurate conversion. The output of the sampling and holding circuit is a stable analog signal, whose value corresponds to the signal difference output by the double sampling circuit. The analog-to-digital converter is the core part of the readout circuit, which converts the analog signal from the sampling and holding circuit into a digital signal. This conversion process is realized by circuits such as comparators and counters, which can quantize the continuous changes of the analog signal into a series of discrete digital values. The main function of the output buffer is to cache the digital signal output by the ADC and transmit it to the subsequent image processing system or storage device. Since the transmission speed of the digital signal may be limited by factors such as the interface and bus bandwidth, the output buffer can ensure the continuity and stability of the signal. The double sampling circuit in the readout circuit can remove most of the fixed pattern noise and dark current in the detector signal, thereby significantly improving the signal-to-noise ratio of the signal. The sample-and-hold circuit ensures that the signal received by the ADC during the conversion process is stable, avoiding the influence of signal fluctuations on the conversion accuracy. At the same time, the high-precision ADC can accurately quantize the analog signal into a digital signal, retaining the details and accuracy of the signal. This enables the generated digital image to truly reflect the original signal of the detector, improving the accuracy and reliability of the image. Modern readout circuits usually use high-speed ADCs and optimized circuit designs to achieve fast signal conversion and transmission.

[0051] In one embodiment of the present invention, S3 includes:

[0052] S31: preprocessing the image signal, performing in-depth analysis and processing on the preprocessed image, and extracting key features in the image;

[0053] S32: Performing image enhancement processing according to the analysis result.

[0054] The working principle and effect of the above technical solution are as follows: First, the image signal is subjected to noise suppression processing to reduce random noise and interference in the image and improve the signal-to-noise ratio of the image. The image is subjected to geometric correction and brightness / contrast correction to eliminate image distortion and distortion caused by the non-uniformity of the detector or the imaging process. The preprocessed image is deeply analyzed by the image processing algorithm to extract the key features in the image. The image is divided into different regions or objects for further analysis and processing. The contrast of the image is adjusted to make the useful information in the image more prominent while suppressing unnecessary details and noise. The image is sharpened to enhance the edges and details of the image. According to the actual application requirements, the enhanced image is optimized to adapt to different display devices and environments. The preprocessing step can remove noise and interference in the image, improve the signal-to-noise ratio of the image, and make the image clearer and purer. The image processed by preprocessing and in-depth analysis is easier to observe and interpret, which helps professionals to obtain useful information in the image more quickly. In-depth analysis and processing can further correct the distortion and distortion in the image and improve the geometric accuracy and color accuracy of the image. Image enhancement processing can significantly improve the visual effect of an image, making it clearer, brighter, and with more prominent details. Enhancement processing can highlight important information in an image and suppress irrelevant information as needed, making the image more in line with the needs of the observer.

[0055] In one embodiment of the present invention, the S4 includes:

[0056] S41: performing quality assessment on the generated image, and modifying relevant parameters of the image according to the assessment result;

[0057] S42: performing quality assessment on the modified image again to form a closed-loop feedback mechanism until the image quality reaches a specified value;

[0058] S43: Outputting the adjusted high-quality image to a display device or saving it to a storage device.

[0059] The working principle and effect of the above technical solution are as follows: a comprehensive quality assessment is performed on the generated image, and according to the results of the quality assessment, quality problems existing in the image are identified, and relevant imaging parameters are adjusted in a targeted manner. After modifying the imaging parameters, the image is regenerated and quality assessment is performed. The effect of parameter adjustment is evaluated by comparing the image quality before and after the modification. If the image quality still does not meet the specified standard, the imaging parameters are adjusted according to the new evaluation results. This process forms a closed-loop feedback mechanism, which is optimized through continuous iteration until the image quality meets the requirements. When the image quality reaches the specified value, the adjusted high-quality image is output to the display device for viewing. At the same time, the image is saved in a storage device for subsequent analysis, processing and archiving. The workflow is highly automated, reducing the need for manual intervention. Automated processing not only improves work efficiency, but also reduces the possibility of human error. The closed-loop feedback mechanism enables the system to respond quickly to changes in image quality and adjust parameters in time to restore image quality, which is particularly important for real-time imaging applications. Adjustment of a variety of imaging parameters enables the system to adapt to different imaging needs and scenarios. By flexibly adjusting parameters, the best imaging effect can be obtained. After stages of optimization, the final output image quality is stable and reliable, and can meet the needs of various application scenarios.

[0060] One embodiment of the present invention provides a readout circuit adjustment system for an X-ray direct imaging detector, the system comprising:

[0061] Imaging detector: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals;

[0062] Readout circuit: The readout circuit converts the digital signal into an image signal and amplifies the digital signal;

[0063] Image processing system: The image processing system analyzes and processes image signals to generate high-quality images;

[0064] Adjustment system: The adjustment system adjusts the generated high-quality images to improve the signal-to-noise ratio and clarity of the images.

[0065] The working principle and effect of the above technical solution are as follows: In one embodiment of the present invention, the readout circuit includes:

[0066] Double sampling circuit: The double sampling circuit performs reset signal adoption and integration signal adoption on the electrical signal collected by the readout circuit, subtracts the reset signal from the integration signal to obtain a net signal, and transmits the net signal to the sample and hold circuit;

[0067] Conversion system: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal electrical level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, which amplifies the digital signal.

[0068] The working principle and effect of the above technical solution are:

[0069] In one embodiment of the present invention, the image processing system comprises:

[0070] Image processing system: pre-process the image signal, conduct in-depth analysis and processing on the pre-processed image, and extract key features from the image;

[0071] Image enhancement system: Enhance the image based on the analysis results.

[0072] The working principle and effect of the above technical solution are:

[0073] In one embodiment of the present invention, the regulating system comprises:

[0074] Quality assessment system: evaluate the quality of the generated images and modify the relevant parameters of the images based on the assessment results;

[0075] Quality assessment loop system: The modified image is re-evaluated to form a closed-loop feedback mechanism until the image quality reaches the specified value;

[0076] Output system: Outputs the adjusted high-quality image to a display device or saves it to a storage device.

[0077] The quality assessment system obtains the signal-to-noise ratio, contrast, clarity, color accuracy and noise of the image, and standardizes and normalizes the above parameters to obtain the quality assessment result, and compares it with the set image expected quality score Q, and the quality assessment result is obtained by the following formula:

[0078]

[0079] Among them, Q i represents the i-th quality assessment result, R i represents the signal-to-noise ratio of the image, C i Indicates the contrast of the image, H i Indicates the clarity of the image, A i Indicates the color accuracy of the image; N i represents the noise level of the image, α represents the noise weight of the image, and the value of α is 0.7;

[0080] When Q iWhen ≥Q, it means that the current image quality score has reached the expected quality score, then after recording the current values ​​of the various parameters, the image is output to the display device or saved to the storage device;

[0081] When Q i When <Q, it indicates that the current image quality score is lower than the expected quality score, and the quality assessment loop system adjusts the parameters of the image, and the parameters are adjusted according to the following formula:

[0082]

[0083] Among them, R i+1 It represents the signal-to-noise ratio after the image is adjusted once, C i+1 Indicates the contrast of the image after one cycle adjustment, H i+1 Indicates the clarity of the image after one cycle adjustment, A i+1 It indicates the color accuracy of the image after one cycle adjustment. k indicates the adjustment coefficient, and the value of k is 0.5.

[0084] Repeat the cycle until Q i When ≥Q, the image is output to a display device or saved to a storage device.

[0085] The working principle and effect of the above technical solution are as follows: a comprehensive quality assessment is performed on the generated image, and according to the results of the quality assessment, quality problems existing in the image are identified, and relevant imaging parameters are adjusted in a targeted manner. After modifying the imaging parameters, the image is regenerated and quality assessment is performed. The effect of parameter adjustment is evaluated by comparing the image quality before and after the modification. If the image quality still does not meet the specified standard, the imaging parameters are adjusted according to the new evaluation results. This process forms a closed-loop feedback mechanism, which is optimized through continuous iteration until the image quality meets the requirements. When the image quality reaches the specified value, the adjusted high-quality image is output to the display device for viewing. At the same time, the image is saved in a storage device for subsequent analysis, processing and archiving. The workflow is highly automated, reducing the need for manual intervention. Automated processing not only improves work efficiency, but also reduces the possibility of human error. The closed-loop feedback mechanism enables the system to respond quickly to changes in image quality and adjust parameters in time to restore image quality, which is particularly important for real-time imaging applications. Adjustment of a variety of imaging parameters enables the system to adapt to different imaging needs and scenarios. By flexibly adjusting parameters, the best imaging effect can be obtained. After stages of optimization, the final output image quality is stable and reliable, and can meet the needs of various application scenarios.

[0086] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for adjusting a readout circuit of an X-ray direct imaging detector, characterized in that: The method comprises: S1: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals; S2: The readout circuit converts the digital signal into an image signal and amplifies the digital signal; S3: The image processing system analyzes and processes the image signal to generate high-quality images; S4: The adjustment system adjusts the generated high-quality image to improve the signal-to-noise ratio and clarity of the image.

2. The method for adjusting the readout circuit of an X-ray direct imaging detector according to claim 1, characterized in that: The readout circuit includes: a dual sampling circuit, a sample-and-hold circuit, an analog-to-digital converter and an output buffer, and the signal output end of the dual sampling circuit is connected to the signal input end of the sampling and holding circuit, the signal output end of the sampling and holding circuit is connected to the signal input end of the analog-to-digital converter, and the signal output end of the analog-to-digital converter is connected to the signal input end of the output buffer.

3. The method for adjusting the readout circuit of an X-ray direct imaging detector according to claim 1, characterized in that: The S2 includes: S21: the double sampling circuit performs reset signal adoption and integration signal adoption on the electrical signal collected by the readout circuit, subtracts the reset signal from the integration signal to obtain a net signal, and transmits the net signal to the sample and hold circuit; S22: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, and the output buffer amplifies the digital signal.

4. The method for adjusting the readout circuit of an X-ray direct imaging detector according to claim 1, characterized in that: The S3 includes: S31: preprocessing the image signal, performing in-depth analysis and processing on the preprocessed image, and extracting key features in the image; S32: Performing image enhancement processing according to the analysis result.

5. The method for adjusting the readout circuit of an X-ray direct imaging detector according to claim 1, characterized in that: The S4 includes: S41: performing quality assessment on the generated image, and modifying relevant parameters of the image according to the assessment result; S42: performing quality assessment on the modified image again to form a closed-loop feedback mechanism until the image quality reaches a specified value; S43: Outputting the adjusted high-quality image to a display device or saving it to a storage device.

6. A readout circuit adjustment system for an X-ray direct imaging detector, characterized in that: The system comprises: Imaging detector: The imaging detector receives X-rays, excites electron-hole pairs in the semiconductor material inside the imaging detector, and then converts X-ray photons into digital signals; Readout circuit: The readout circuit converts the digital signal into an image signal and amplifies the digital signal; Image processing system: The image processing system analyzes and processes image signals to generate high-quality images; Adjustment system: The adjustment system adjusts the generated high-quality images to improve the signal-to-noise ratio and clarity of the images.

7. The readout circuit adjustment system of an X-ray direct imaging detector according to claim 6, characterized in that: The readout circuit comprises: Double sampling circuit: The double sampling circuit performs reset signal sampling and integral signal sampling on the electrical signal collected by the readout circuit, subtracts the reset signal from the integral signal to obtain a net signal, and transmits the net signal to the sample-and-hold circuit; Conversion system: A holding circuit is used to receive a clean signal, and the clean signal is connected to an internal electrical level. After the voltage is kept stable, the digital-to-analog converter converts the stable electrical signal into a digital signal, and then transmits the digital signal to an output buffer, which amplifies the digital signal.

8. The readout circuit adjustment system of an X-ray direct imaging detector according to claim 6, characterized in that: The image processing system comprises: Image processing system: pre-process the image signal, conduct in-depth analysis and processing on the pre-processed image, and extract key features from the image; Image enhancement system: Enhance the image based on the analysis results.

9. The readout circuit adjustment system of an X-ray direct imaging detector according to claim 6, characterized in that: The regulating system comprises: Quality assessment system: evaluate the quality of the generated images and modify the relevant parameters of the images based on the assessment results; Quality assessment loop system: The modified image is re-evaluated to form a closed-loop feedback mechanism until the image quality reaches the specified value; Output system: Outputs the adjusted high-quality image to a display device or saves it to a storage device.

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