Ultrahigh-speed single-photon imaging device of photon camera

By designing a photon camera ultra-high-speed single-photon imaging device, including imaging arrays, preprocessing modules, image processing modules, etc., the problem of external equipment processing after taking pictures is solved, and the rapid processing and storage of image data is achieved, which significantly improves work efficiency.

CN119402757APending Publication Date: 2025-02-07ZHEJIANG UNIV
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Patent Information

Application Number
CN202411529371.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-02-07

AI Technical Summary

Technical Problem

After taking photos, existing photon cameras need to use other professional processing equipment to process the images, which takes a lot of time.

Method used

A photon camera ultra-high speed single-photon imaging device is designed, including an imaging array, a preprocessing module, an image processing module, a control module, a storage module and a transmission module. Through the coordinated work of these modules, real-time processing of photon signals and images are realized. Instant storage and transmission of data.

Benefits of technology

It realizes that the photon camera can quickly process and store image data after taking pictures, reducing dependence on external devices and significantly shortening processing time.

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Abstract

The invention relates to the technical field of digital imaging, in particular to a photon camera ultra-high-speed single-photon imaging device which comprises an imaging array, a preprocessing module, an image processing module, a control module, a storage module and a transmission module. The detection module is used for detecting photons, the preprocessing module is used for processing the detected photons, the image processing module is used for processing image data converted by the preprocessing module, the control module is used for controlling operation of the photon camera imaging system, and the storage module is used for storing processed image information. And the transmission module is used for transmitting the image information to external equipment.
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Description

Technical Field

[0001] The present invention relates to the technical field of digital imaging, and in particular to an ultra-high-speed single-photon imaging device of a photon camera. Background Art

[0002] Single-photon detection technology has a wide range of applications in high-resolution spectral measurement, non-destructive material analysis, high-speed phenomenon detection, precision analysis, atmospheric pollution measurement, bioluminescence, radiation detection, high-energy physics, astronomical photometry, optical time domain emission, quantum key distribution systems and other fields.

[0003] At present, photon cameras generally use imaging solutions such as EMCCD to achieve imaging. At high speeds, they can achieve 10,000 frames per second and can take pictures in low light. After taking pictures, other professional processing equipment is needed to process the image, which takes a lot of time. Summary of the invention

[0004] The purpose of the present invention is to provide an ultra-high-speed single-photon imaging device for a photon camera, aiming to solve the problem that the existing photon camera needs to use other professional processing equipment to process the image after taking the photo, which takes a lot of time.

[0005] To achieve the above-mentioned object, the present invention provides an ultra-high-speed single-photon imaging device of a photon camera, comprising an imaging array, a preprocessing module, an image processing module, a control module, a storage module and a transmission module, wherein the imaging array, the preprocessing module, the image processing module, the control module, the storage module and the transmission module are connected in sequence;

[0006] The imaging array is used to simultaneously capture photon signals from different spatial positions;

[0007] The pre-processing module is used to process the detected photons;

[0008] The image processing module is used to process the image data converted by the preprocessing module;

[0009] The control module is used to control the operation of the photon camera imaging system;

[0010] The storage module is used to store the processed photon information;

[0011] The transmission module is used to transmit photon information to an external device.

[0012] Wherein, the imaging array comprises a photon detector and a photon array detector, and the photon detector and the photon array detector are connected in sequence;

[0013] The photon detector is used to capture photon signals;

[0014] The photon array detector is used to convert captured photon signals into electrical pulse signals.

[0015] Wherein, the preprocessing module comprises a pulse amplifier, a filter, a digital conversion unit, a data acquisition unit, and an image reconstruction unit, and the pulse amplifier, the filter, the digital conversion unit, the data acquisition unit, and the image reconstruction unit are connected in sequence;

[0016] The pulse amplifier is used to amplify the electrical pulse signal;

[0017] The filter is used to remove noise and other unwanted signals;

[0018] The digital conversion unit is used to convert the electrical pulse signal into a digital signal;

[0019] The data acquisition unit is used to collect all data signals of the photon detector;

[0020] The image reconstruction unit is used to convert data into a visual image by using algorithms and calculation methods.

[0021] Wherein, the image processing module comprises an image enhancement unit, a feature extraction unit, an image analysis unit and an image compression unit, and the image enhancement unit, the feature extraction unit, the image analysis unit and the image compression unit are connected in sequence;

[0022] The image enhancement unit is used to adjust the contrast, color balance, saturation and detail information of the image;

[0023] The feature extraction unit is used to identify useful feature information in the image and analyze it;

[0024] The image analysis unit is used to analyze and process the image using machine learning, deep learning and other algorithms;

[0025] The image compression unit is used to compress the image for subsequent viewing and use.

[0026] Wherein, the control module includes a main controller and a processing controller, and the main controller and the processing controller are connected in sequence;

[0027] The main controller is responsible for the operation control and status monitoring of the entire imaging system;

[0028] The processing controller is used to control the amplification factor of the pulse amplifier.

[0029] Wherein, the storage module includes a memory and an encryption unit, and the memory and the encryption unit are connected in sequence;

[0030] The memory is used to store image data to ensure the integrity of the image data;

[0031] The encryption unit is used to encrypt the data in the memory.

[0032] Wherein, the transmission module includes an Ethernet interface, a verification unit and an anti-interference unit, and the Ethernet interface, the verification unit and the anti-interference unit are connected in sequence;

[0033] The Ethernet interface is used to connect to an external device using Ethernet and transmit image data;

[0034] The verification unit is used to authenticate the receiving device;

[0035] The anti-interference unit is used to ensure stable transmission in an environment with external interference.

[0036] The present invention discloses an ultra-high-speed single-photon imaging device for a photon camera. The imaging array is used to simultaneously capture photon signals from different spatial positions. The preprocessing module is used to process the detected photons. The image processing module is used to process the image data converted by the preprocessing module. The operation of the photon camera imaging system is controlled by the control module. The storage module is used to store the processed image information. The transmission module is used to transmit the image information to an external device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0038] Figure 1 It is an overall module diagram of an ultra-high-speed single-photon imaging device of a photon camera of the present invention.

[0039] Figure 2 It is an overall flow chart of an ultra-high-speed single-photon imaging device of a photon camera of the present invention.

[0040] Figure 3 It is a module diagram of a verification unit of an ultra-high-speed single-photon imaging device of a photon camera of the present invention.

[0041] 101-imaging array, 102-preprocessing module, 103-image processing module, 104-control module, 105-storage module, 106-transmission module, 107-photon detector, 108-photon array detector, 109-pulse amplifier, 110-filter, 111-digital conversion unit, 112-data acquisition unit, 113-image reconstruction unit, 114-image enhancement unit, 115-feature extraction unit, 116-image analysis unit, 117-image compression unit, 118-main controller, 119-processing controller, 120-memory, 121-encryption unit, 122-Ethernet interface, 123-verification unit, 124-anti-interference unit, 125-monitoring unit, 126-alarm unit, 127-password verification subunit, 128-biometric verification subunit. DETAILED DESCRIPTION

[0042] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0043] See also Figure 1 to Figure 3 , Figure 1 It is an overall module diagram of an ultra-high-speed single-photon imaging device of a photon camera of the present invention. Figure 2 It is a flow chart of the whole of a photon camera ultra-high-speed single-photon imaging device of the present invention. Figure 3 It is a module diagram of a verification unit of an ultra-high-speed single-photon imaging device of a photon camera of the present invention.

[0044] A photon camera ultra-high-speed single-photon imaging device of the present invention comprises: an imaging array 101, a preprocessing module 102, an image processing module 103, a control module 104, a storage module 105 and a transmission module 106, wherein the imaging array 101, the preprocessing module 102, the image processing module 103, the control module 104, the storage module 105 and the transmission module 106 are connected in sequence;

[0045] The imaging array 101 is used to simultaneously capture photon signals from different spatial positions;

[0046] The pre-processing module 102 is used to process the detected photons;

[0047] The image processing module 103 is used to process the image data converted by the preprocessing module 102;

[0048] The control module 104 is used to control the operation of the photon camera imaging system;

[0049] The storage module 105 is used to store the processed photon information;

[0050] The transmission module 106 is used to transmit the photon information to an external device.

[0051] In this embodiment, the imaging array 101 is used to simultaneously capture photon signals from different spatial positions, and the preprocessing module 102 is used to process the detected photons, the image processing module 103 is used to process the image data converted by the preprocessing module 102, the operation of the photon camera imaging system is controlled by the control module 104, the storage module 105 is used to store the processed photon information, and the transmission module 106 is used to transmit the photon information to an external device.

[0052] Further, the imaging array 101 includes a photon detector 107 and a photon array detector 108, and the photon detector 107 and the photon array detector 108 are connected in sequence;

[0053] The photon detector 107 is used to capture photon signals;

[0054] The photon array detector 108 is used to convert the captured photon signal into an electrical pulse signal;

[0055] In this embodiment, when a photon hits the photon detector 107, the photosensitive material in the photon detector 107 absorbs the energy of the photon. After the energy of the photon is absorbed, electrons are generated in the photosensitive material. The excited electrons are then accelerated under the action of the electric field and form electrical signals inside the photon array detector 108.

[0056] Further, the preprocessing module 102 includes a pulse amplifier 109, a filter 110, a digital conversion unit 111, a data acquisition unit 112, and an image reconstruction unit 113, and the pulse amplifier 109, the filter 110, the digital conversion unit 111, the data acquisition unit 112, and the image reconstruction unit 113 are connected in sequence;

[0057] The pulse amplifier 109 is used to amplify the electrical pulse signal;

[0058] The filter 110 is used to remove noise and other unwanted signals;

[0059] The digital conversion unit 111 is used to convert the electrical pulse signal into a digital signal;

[0060] The data acquisition unit 112 is used to collect all data signals of the photon detector 107;

[0061] The image reconstruction unit 113 is used to convert the data into a visual image using algorithms and calculation methods;

[0062] In this embodiment, the electrical pulse signal converted by the photon array detector 108 is amplified by using the pulse amplifier 109, and the filter 110 is used to remove noise and other unnecessary signals, and then converted into a digital signal by the digital conversion unit. At the same time, all data signals of the photon detector 107 are collected by the data acquisition unit 112, and the data are converted into a visual image using algorithms and calculation methods, and the reconstructed image is displayed.

[0063] Further, the image processing module 103 includes an image enhancement unit 114, a feature extraction unit 115, an image analysis unit 116 and an image compression unit 117, and the image enhancement unit 114, the feature extraction unit 115, the image analysis unit 116 and the image compression unit 117 are connected in sequence;

[0064] The image enhancement unit 114 is used to adjust the contrast, color balance, saturation and detail information of the image;

[0065] The feature extraction unit 115 is used to identify useful feature information in the image and analyze it;

[0066] The image analysis unit 116 is used to analyze and process the image using machine learning, deep learning and other algorithms;

[0067] The image compression unit 117 is used to compress the image for subsequent viewing and use;

[0068] In this embodiment, the image is made clearer by enhancing the edge and detail information of the image, and the image parameters such as color balance, saturation and brightness are adjusted to improve the image visual effect. The image clarity can be improved by enhancing the contrast, and the edges in the image can be identified for shape analysis and object detection. At the same time, the image is processed using machine learning, deep learning and other algorithms. After processing, the image is compressed by JPEG, and the compressed image will be saved as a JPEG format file for subsequent viewing and use.

[0069] Further, the control module 104 includes a main controller 118 and a processing controller 119, and the main controller 118 and the processing controller 119 are connected in sequence;

[0070] The main controller 118 is responsible for the operation control and status monitoring of the entire imaging system;

[0071] The processing controller 119 is used to control the amplification factor of the pulse amplifier 109;

[0072] In this embodiment, the main controller 118 receives instructions from a user or an external system, and controls the various components of the imaging system to work together according to these instructions, and the processing controller 119 can control the amplification factor of the pulse amplifier 109 by sending a control signal to the pulse amplifier 109.

[0073] Further, the storage module 105 includes a memory 120 and an encryption unit 121, and the memory 120 and the encryption unit 121 are connected in sequence;

[0074] The memory 120 is used to store image data to ensure the integrity of the image data;

[0075] The encryption unit 121 is used to encrypt the data in the memory 120;

[0076] In this embodiment, the pixel values, color information, depth information and other information of the image are stored through the memory 120 for subsequent processing, analysis or display, and can detect and correct bit errors that may occur during the storage process to ensure the accuracy of the data. The image data or other sensitive information in the memory 120 is encrypted by using complex encryption algorithms and keys.

[0077] Further, the transmission module 106 includes an Ethernet interface 122, a verification unit 123 and an anti-interference unit 124, and the Ethernet interface 122, the verification unit 123 and the anti-interference unit 124 are connected in sequence;

[0078] The Ethernet interface 122 is used to connect to external devices using Ethernet and transmit image data;

[0079] The verification unit 123 is used to authenticate the receiving device;

[0080] The anti-interference unit 124 is used to ensure stable transmission in an environment with external interference;

[0081] In this embodiment, the Ethernet interface 122 is used to connect and communicate with other Ethernet-supported devices, and image data can be efficiently transmitted to a remote device or storage system through the Ethernet interface 122 for further processing, analysis or display. Before transmitting the image data, the verification unit 123 is used to authenticate the receiving device communicating with it to ensure that the data is not tampered with or stolen during the transmission process. The anti-interference unit 124 enhances the system's anti-interference capability in complex environments to ensure that data can be transmitted stably and accurately.

[0082] Furthermore, the control module 104 further includes a monitoring unit 125 and an alarm unit 126, and the monitoring unit 125 and the alarm unit 126 are connected in sequence;

[0083] The monitoring unit 125 is used to monitor the state of the imaging system in real time during operation;

[0084] The alarm unit 126 is used to warn the user of a malfunction caused by an accident or other unstable factors during the operation of the imaging system;

[0085] In this embodiment, the operation of the monitoring unit 125 can ensure that the imaging system maintains normal operation, and send an alarm to the user in the event of a malfunction caused by an accident or other unstable factors, so as to facilitate the user's handling.

[0086] Further, the verification unit 123 includes a password verification subunit 127 and a biometric verification subunit 128, and the password verification subunit 127 and the biometric verification subunit 128 are connected in sequence;

[0087] The password verification subunit 127 is used for the user to input a password to confirm the identity of the receiving device;

[0088] The biometric verification subunit 128 is used to confirm the identity of the user;

[0089] In this embodiment, during data transmission, the receiving device needs to input the correct password or key, which will be checked by the verification unit 123, and the verification unit 123 supports biometric recognition, such as fingerprint recognition, facial recognition, etc., to ensure that the identity of the receiving device is accurate.

[0090] In the ultra-high-speed single-photon imaging device of a photon camera of the present invention, when a photon hits the photon detector 107, the photosensitive material in the photon detector 107 absorbs the energy of the photon. After the energy of the photon is absorbed, electrons are generated in the photosensitive material. The excited electrons are then accelerated under the action of the electric field and form electrical signals inside the photon array detector 108. The electrical pulse signal converted by the photon array detector 108 is amplified by using the pulse amplifier 109. The processing controller 119 sends a control signal to the pulse amplifier 109 to control its amplification factor, and the filter 110 is used to remove noise. The sound and other unnecessary signals are converted into digital signals by the digital conversion unit. At the same time, all data signals of the photon detector 107 are collected by the data acquisition unit 112, and the data are converted into a visual image by using algorithms and calculation methods, and the reconstructed image is displayed. In the displayed image, the image edge and detail information are enhanced to make the image clearer, and the color balance, saturation, brightness and other parameters of the image are adjusted to improve the image visual effect. The image clarity can be improved by enhancing the contrast, and the edges in the image are identified for shape analysis and object detection. At the same time, it is used to use machine learning, deep learning and other algorithms to analyze the image. After the processing is completed, the image is compressed by JPEG, and the compressed image is saved as a JPEG format file for subsequent viewing and use. When processing the photon signal and the image data, the main controller 118 receives instructions from the user or the external system, and controls the various components of the imaging system to work together according to these instructions. After the image data is processed, the pixel value, color information, depth information and other information of the image are saved through the memory 120 for subsequent processing, analysis or display, and can detect and correct bit errors that may occur during the storage process, thereby ensuring the accuracy of the data. The image data or other sensitive information in the memory 120 is encrypted using a complex encryption algorithm and key. At this time, the Ethernet interface 122 is used to connect and communicate with other devices supporting Ethernet. The image data can be efficiently transmitted to a remote device or storage system through the Ethernet interface 122 for further processing, analysis or display. Before transmitting the image data, the verification unit 123 is used to authenticate the receiving device communicating with it to ensure that the data is not tampered with or stolen during the transmission process. The anti-interference unit 124 is used to enhance the anti-interference ability of the system in complex environments to ensure that the data can be transmitted stably and accurately.

[0091] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A photon camera ultra-high-speed single-photon imaging device, characterized in that: It includes an imaging array, a preprocessing module, an image processing module, a control module, a storage module and a transmission module, wherein the imaging array, the preprocessing module, the image processing module, the control module, the storage module and the transmission module are connected in sequence; The imaging array is used to simultaneously capture photon signals from different spatial positions; The pre-processing module is used to process the detected photons; The image processing module is used to process the image data converted by the preprocessing module; The control module is used to control the operation of the photon camera imaging system; The storage module is used to store the processed photon information; The transmission module is used to transmit photon information to an external device.

2. The ultra-high-speed single-photon imaging device of a photon camera according to claim 1, characterized in that: The imaging array includes a photon detector and a photon array detector, and the photon detector is connected to the photon array detector; The photon detector is used to capture photon signals; The photon array detector is used to convert captured photon signals into electrical pulse signals.

3. The ultra-high-speed single-photon imaging device of a photon camera as claimed in claim 2, characterized in that: The preprocessing module includes a pulse amplifier, a filter, a digital conversion unit, a data acquisition unit, and an image reconstruction unit, wherein the pulse amplifier, the filter, the digital conversion unit, the data acquisition unit, and the image reconstruction unit are connected in sequence; The pulse amplifier is used to amplify the electrical pulse signal; The filter is used to remove noise and other unwanted signals; The digital conversion unit is used to convert the electrical pulse signal into a digital signal; The data acquisition unit is used to collect all data signals of the photon detector; The image reconstruction unit is used to convert data into a visual image by using algorithms and calculation methods.

4. The ultra-high-speed single-photon imaging device of a photon camera as claimed in claim 3, characterized in that: The image processing module comprises an image enhancement unit, a feature extraction unit, an image analysis unit and an image compression unit, wherein the image enhancement unit, the feature extraction unit, the image analysis unit and the image compression unit are connected in sequence; The image enhancement unit is used to adjust the contrast, color balance, saturation and detail information of the image; The feature extraction unit is used to identify useful feature information in the image and analyze it; The image analysis unit is used to analyze and process the image using machine learning and deep learning algorithms; The image compression unit is used to compress the image for subsequent viewing and use.

5. The ultra-high-speed single-photon imaging device of a photon camera as claimed in claim 4, characterized in that: The control module includes a main controller and a processing controller, and the main controller is connected to the processing controller; The main controller is responsible for the operation control and status monitoring of the entire imaging system; The processing controller is used to control the amplification factor of the pulse amplifier.

6. The ultra-high-speed single-photon imaging device of a photon camera as claimed in claim 5, characterized in that: The storage module includes a memory and an encryption unit, and the memory is connected to the encryption unit; The memory is used to store image data to ensure the integrity of the image data; The encryption unit is used to encrypt the data in the memory.

7. The ultra-high-speed single-photon imaging device of a photon camera as claimed in claim 6, characterized in that: The transmission module includes an Ethernet interface, a verification unit and an anti-interference unit, and the Ethernet interface, the verification unit and the anti-interference unit are connected in sequence; The Ethernet interface is used to connect to an external device using Ethernet and transmit image data; The verification unit is used to authenticate the receiving device; The anti-interference unit is used to ensure stable transmission in an environment with external interference.

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