Security inspection image processing methods and systems

Abstract

This disclosure relates to a security inspection image processing method and system. The security inspection image processing method includes: responding to a synchronization command, triggering a synchronization operation between a preset number of package label number queues and a security inspection image queue for the preset number of packages, so that the preset number matches the number of security inspection images in the synchronized security inspection image queue; the synchronization operation includes: a judgment step: determining whether the number of security inspection images in the security inspection image queue is equal to the number of label numbers in the label number queue; if the numbers are equal, exiting the synchronization operation; if the numbers are not equal, performing image analysis on the optical images captured when each security inspection image in the security inspection image queue is generated, determining the number of packages in the optical images; performing a segmentation operation or image thresholding operation on security inspection images with more than one package to obtain multiple security inspection images with the same number of packages, and then returning to the judgment step.

Description

[0001] This application is a divisional application of the invention patent application filed on December 24, 2018, with application number 201811581337.0 and title "Security Inspection Image Processing Method and System". Technical Field

[0002] This disclosure relates to the field of security inspection, and in particular to a security inspection image processing method and system. Background Technology

[0003] In the field of radiation imaging security inspection, linking X-ray images with other information about the items is a crucial means of achieving traceability of security inspection information. For example, in cargo logistics security inspection, the waybill number is a unique numerical identifier for a package. By querying the waybill number, the package's logistics information can be obtained. If the security inspection information from the X-ray image is linked one-to-one with the waybill number, then when dangerous goods are found concealed in the package, security personnel can quickly obtain the logistics information through the linked waybill number for handling and reporting.

[0004] Generally, when a package passes through a security scanner, an image is generated. For example, the package shown in Figure 1(a) becomes the security image shown in Figure 1(b) after passing through the scanner. In some fields, package traffic is high, with packages entering the scanner almost continuously, often resulting in a single security image containing multiple packages (see [link to relevant documentation]). Figure 2 This is usually caused by putting two or more packages in at one time, or by multiple packages overlapping and entering the passage consecutively.

[0005] In the logistics industry, the above situation is quite common. When it's necessary to link a package's waybill number with its X-ray security scan image for subsequent retrieval, problems may arise that the retrieval fails. For example, refer to... Figure 3 After scanning the waybill numbers of packages A and B, the unloading workers place them on cargo transport track a1. Because the placement is random, multiple packages may overlap and enter the security inspection machine a2 during the unloading and security inspection process in a single vehicle. This results in security images generated by machine a2 being far fewer than the actual number of packages, making it difficult to accurately retrieve the corresponding security image based on the waybill number—a phenomenon known as missed inspection. This violates the principle in the logistics industry that every package must be inspected. Summary of the Invention

[0006] In view of this, the present disclosure provides a security inspection image processing method and system that can minimize the missed detection during waybill number retrieval.

[0007] In one aspect of this disclosure, a security inspection image processing method is provided, comprising:

[0008] In response to a synchronization command, a synchronization operation is triggered between the queue of waybill numbers corresponding to a preset number of packages and the queue of security inspection images of the preset number of packages, so that the preset number matches the number of security inspection images in the synchronized security inspection image queue;

[0009] Synchronization operations include:

[0010] Judgment Step: Determine whether the number of security inspection images in the security inspection image queue is equal to the number of waybill numbers in the waybill number queue;

[0011] If the quantities are equal, exit the synchronization operation;

[0012] If the quantities are not equal, image analysis is performed on the optical images taken when each security image is generated in the security image queue to determine the number of packages in the optical images.

[0013] Perform a segmentation operation or an image thresholding operation on the security inspection images with more than one package to obtain multiple security inspection images with the same number of packages, and then return to the judgment step.

[0014] In some embodiments, if some or all of the security images in the security image queue lack corresponding optical images, or if the number of packages cannot be obtained by analyzing the optical images, then the security image with the largest width in the package transport direction is selected from the security image queue, and the selected security image is segmented along the package transport direction to obtain at least two segmented security images, and then the process returns to the judgment step.

[0015] In some embodiments, after the synchronization operation is completed, each waybill number in the waybill number queue is matched one-to-one with each security inspection image in the synchronized security inspection image queue according to the queue order.

[0016] In some embodiments, the security inspection image processing method further includes the operation of retrieving a security inspection image according to the waybill number, including:

[0017] Search for the security inspection image corresponding to the input waybill number;

[0018] Output the security inspection image and at least one security inspection image that is located before and / or after the security inspection image in the security inspection image queue.

[0019] In some embodiments, the synchronization command comes from external input based on a control panel or remote control, or is automatically generated during the package scanning process.

[0020] In one aspect of this disclosure, a security inspection image processing system is provided, comprising:

[0021] A scanning device is used to scan the waybill number of at least one package that is about to enter the security checkpoint to form a waybill number queue including each waybill number.

[0022] Security screening equipment is used to scan at least one package entering a security screening lane and generate security images to form a security image queue including the individual security images; and

[0023] The synchronization device is configured to perform the aforementioned security inspection image processing method.

[0024] In some embodiments, the security inspection image processing system further includes:

[0025] An optical camera device, installed within the security inspection equipment, is used to capture an optical image of the scanned package when generating a security inspection image.

[0026] In some embodiments, the security inspection image processing system further includes:

[0027] A synchronization operation switch is installed on the control panel or remote control of the security inspection equipment, and is used to send synchronization commands to the synchronization device when operated.

[0028] Therefore, according to the embodiments of this disclosure, when a package is inspected for security, the waybill number queue and the security inspection image queue are synchronized according to the synchronization instruction, so that the number of waybill numbers matches the number of security inspection images, so that each waybill number can correspond to a certain security inspection image, thereby minimizing the possibility of missed inspections when searching for waybill numbers. Attached Figure Description

[0029] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0030] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0031] Figure 1(a) and Figure 1(b) are actual photos and security inspection images of the package example, respectively;

[0032] Figure 2 It is a security inspection image that includes multiple packages;

[0033] Figure 3 This is a schematic diagram of the logistics security inspection process in related technologies;

[0034] Figure 4 This is a flowchart illustrating some embodiments of the security inspection image processing method disclosed herein;

[0035] Figure 5 This is a flowchart illustrating the synchronous operation in some embodiments of the security inspection image processing method disclosed herein;

[0036] Figure 6 According to Figure 5 A schematic diagram illustrating the adjustment of the security inspection image sequence achieved through synchronous operation in the embodiment;

[0037] Figure 7 This is a flowchart illustrating the synchronous operation in some other embodiments of the security inspection image processing method disclosed herein;

[0038] Figure 8 According to Figure 7 A schematic diagram illustrating the adjustment of the security inspection image sequence achieved through synchronous operation in the embodiment;

[0039] Figure 9 This is a flowchart illustrating the synchronous operation in some other embodiments of the security inspection image processing method disclosed herein;

[0040] Figure 10 According to Figure 9 A schematic diagram illustrating the adjustment of the security inspection image sequence achieved through synchronous operation in the embodiment;

[0041] Figure 11 These are schematic diagrams illustrating the structure of some embodiments of the security inspection image processing system according to this disclosure;

[0042] Figure 12 This is a schematic diagram of the structure of some embodiments of the security inspection image processing system according to the present disclosure.

[0043] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0044] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the scope of the disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps set forth in these embodiments should be construed as exemplary only and not as limiting.

[0045] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0046] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0047] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0048] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0049] To minimize missed detections during waybill number retrieval, in some embodiments of the security inspection image processing method disclosed herein, the method includes: in response to a synchronization command, triggering a synchronization operation between a preset number of waybill number queues corresponding to packages and a security inspection image queue for the same preset number of packages, so that the preset number matches the number of security inspection images in the synchronized security inspection image queues. When performing security checks on packages, the synchronization operation between the waybill number queues and the security inspection image queues is performed according to the synchronization command, ensuring that the number of waybill numbers matches the number of security inspection images. This ensures that each waybill number corresponds to a specific security inspection image, thereby minimizing missed detections during waybill number retrieval.

[0050] The waybill number queue here can be formed by package scanning. For example, unloading personnel or automated equipment first scan the waybill number of the package using a scanning device, and then place the package on the cargo transport track. The scanned waybill numbers enter the waybill number queue and can be arranged sequentially according to the order of entry. The security image queue can be obtained by scanning with X-rays (such as X-rays) of security inspection equipment. When a package passes through the beam of X-rays, the resulting security image enters the security image queue and can be arranged sequentially in the security image queue according to the order of generation.

[0051] like Figure 4 The diagram shown is a flowchart illustrating some embodiments of the security inspection image processing method according to this disclosure. (Reference) Figure 4 In some embodiments, the security inspection image processing method includes:

[0052] Step 100: In response to the synchronization command, trigger the synchronization operation between the waybill number queue corresponding to the preset number of packages and the security inspection image queue of the preset number of packages, so that the preset number matches the number of security inspection images in the synchronized security inspection image queue.

[0053] Step 200: After the synchronization operation is completed, make each waybill number in the waybill number queue correspond one-to-one with each security inspection image in the synchronized security inspection image queue according to the queue order.

[0054] Before synchronization is performed, if multiple packages enter the security inspection equipment in a close or overlapping manner, the security inspection image may include multiple packages. This results in the number of waybill numbers in the queue of multiple scanned packages being greater than the number of security images in the security inspection image queue, making it impossible to achieve a one-to-one correspondence and thus impossible to retrieve the waybill numbers.

[0055] At this point, security personnel can manually operate the control panel or remote control to input synchronization commands from the outside, triggering the synchronization operation in step 100. For example, if security personnel find overlapping or too close packages while reviewing the security images, they can press the corresponding synchronization button or handle. Alternatively, the security equipment can automatically check the overlap of packages and prompt the security personnel to confirm synchronization, allowing them to manually operate the control panel or remote control accordingly.

[0056] Alternatively, synchronization instructions can be automatically generated during the package scanning process. For example, when the security inspection equipment checks the proximity or overlap of packages during the scanning process, it can generate synchronization instructions, or it can generate synchronization instructions periodically to trigger the synchronization operation in step 100.

[0057] Through synchronization, the number of waybill numbers in the waybill number queue and the number of security images in the security image queue can both be equal to the actual number of scanned packages. Thus, in step 200, each waybill number in the waybill number queue can be matched one-to-one with each security image in the synchronized security image queue, achieving binding.

[0058] In this way, based on the relationship between the bound waybill number and the security inspection image, the operation of retrieving security inspection images by waybill number can be realized. When the operator enters a waybill number, they can query the security inspection image corresponding to that waybill number. Considering that there may be situations where the waybill number is scanned first but the corresponding package arrives at the X-ray beam surface of the security inspection equipment later, or that the synchronized security inspection image deviates from the actual package (e.g., incomplete display or misalignment), the search results can be output not only for the security inspection image corresponding to the waybill number, but also for at least one security inspection image in the security inspection image queue that is before and / or after the first security inspection image. For example, the security inspection image corresponding to the waybill number, along with the previous and next security inspection images, can be output. In this way, the searcher can obtain a more accurate understanding by viewing more security inspection images.

[0059] like Figure 5 The diagram shown is a flowchart illustrating the synchronous operation in some embodiments of the security inspection image processing method according to this disclosure. (Reference) Figure 5 In some embodiments, the synchronization operation may include:

[0060] Step 110 (Judgment Step): Determine whether the number of security inspection images in the security inspection image queue is equal to the number of waybill numbers in the waybill number queue. If the number is equal, exit the synchronization operation. If the number is not equal, proceed to step 120.

[0061] Step 120: Select the security image with the largest width in the package transport direction from the security image queue;

[0062] Step 130: Segment the selected security inspection image along the package transport direction to obtain at least two segmented security inspection images, and then return to step 110.

[0063] Step 110 provides the exit condition for the synchronization operation: the number of security inspection images equals the number of waybill numbers. Furthermore, after segmentation in step 130, the process returns to step 110 to repeat the judgment operation. The segmented security inspection images in step 130 can directly replace the segmented security inspection images in the security inspection image queue; the segmented security inspection images can be deleted or saved separately.

[0064] This embodiment can effectively divide a wider security inspection image into more relatively narrow security inspection images through one or more segmentation operations, thereby increasing the number of security inspection images to match the number of waybill numbers.

[0065] When segmenting the selected security inspection image in step 130, the security inspection image with the largest width can be halved in width along the package transport direction to obtain two security inspection images with equal width after segmentation. Of course, it can also be segmented according to other ratios (e.g., 2:3), or segmented into three or more security inspection images.

[0066] If, before the segmentation operation, it is found that at least two security images in the security image queue have the same width and exceed the width of any other security image (i.e., there are multiple security images with the largest width), then one of these at least two security images can be randomly selected for segmentation. In other embodiments, at least two security images can also be selected by default for segmentation, for example, the first or last security image among the at least two security images can be selected by default for segmentation.

[0067] like Figure 6 As shown, it is according to Figure 5 A schematic diagram illustrating the adjustment of the security inspection image sequence achieved through synchronization operations in this embodiment. Figure 6 In the sequence, there are five waybill numbers: 1001, 1002, 1003, 1004, and 1005. However, the current security image sequence contains only three security images: Image 1, Image 2, and Image 3. Since Image 2 is the widest of the three, it is selected and halved. The original Image 2 is replaced by Images 2 and 3, and Image 3 becomes Image 4. Because the number of images in the security image sequence is still less than the number of waybill numbers, the process continues. Since Images 2 and 3 have the same width, Image 3 is randomly selected and halved, resulting in Image 3 becoming Images 3 and 4, and Image 4 becoming Image 5. At this point, the number of security images in the security image queue is equal to the number of waybill numbers in the waybill number sequence, so the synchronization operation ends. Each waybill number can now correspond to a specific security image, making waybill-based retrieval possible.

[0068] To achieve higher retrieval requirements and more accurately match security inspection images with waybill numbers, image analysis can be introduced into the synchronous operation in some embodiments. For example... Figure 7 The diagram shown is a flowchart illustrating the synchronous operation in some other embodiments of the security inspection image processing method according to this disclosure. (Reference) Figure 7 In some embodiments, the synchronization operation includes:

[0069] Step 110 (Judgment Step): Determine whether the number of security inspection images in the security inspection image queue is equal to the number of waybill numbers in the waybill number queue. If the number is equal, exit the synchronization operation. If the number is not equal, execute step 140.

[0070] Step 140: Select security images from the security image queue that can be segmented by image thresholding in the direction of package transport;

[0071] Step 150: Perform image thresholding on the selected security inspection image along the package transport direction to obtain at least two segmented security inspection images, and then return to the judgment step.

[0072] Considering that the background area in the security inspection image has a relatively uniform color level, such as all RGB values ​​being 255 or higher, while the foreground area of ​​the security inspection image displaying the package is a pseudo-color area, which can be relatively clearly distinguished from the background area, a security inspection image suitable for image thresholding can be selected in step 140. Specifically, the image segmentation position in the security inspection image can be determined according to a preset color level threshold, and then the security inspection image is segmented at the determined image segmentation position along the package transport direction. Here, the preset color level threshold is determined based on the color level of the background area in the security inspection image; for example, the preset color level threshold can be set to be slightly lower than the color level of the background area.

[0073] refer to Figure 8 For explanations regarding the waybill number sequence and security check image sequence in this example, please refer to [link / reference]. Figure 6 This will not be elaborated further here. Image 2 includes three packages. From left to right, the color gradation of the position between the first package and the second and third packages is relatively close to the color gradation of the background area, which meets the set image threshold. Therefore, it is determined that image 2 can be segmented by image thresholding, and the segmentation position can be set between the first package and the second package.

[0074] Image thresholding is performed on image 2 in step 150 to obtain segmented images 2 and 3, with the original image 3 becoming image 4. Next, the process returns to step 110 to determine if the number of waybill numbers matches the number of security inspection images. Clearly, in... Figure 8 In the process, after the segmentation operation, the number of security inspection images in the security inspection image queue is still less than the number of waybill numbers, and at this point, neither image 2 nor image 3 contains areas that meet the preset color level threshold, so image thresholding cannot be performed. In this case, we can use... Figure 5 The segmentation operation in the embodiment is performed to obtain more security inspection images. Specifically, the security inspection image with the largest width in the package transport direction is selected from the security inspection image queue, and the selected security inspection image is segmented along the package transport direction to obtain at least two segmented security inspection images, and then the process returns to step 110.

[0075] Figure 5 The segmentation method of the security inspection images and the selection of security inspection images with equal width in the embodiments are applicable to this embodiment. Figure 8 In the image, image 3 is the widest security inspection image, so it is selected and split in half to obtain image 3 and image 4, while the original image 4 becomes image 5. The number of security inspection images in the resulting security inspection image queue is the same as the number of waybill numbers in the waybill number sequence, thus achieving a one-to-one correspondence between waybill numbers and security inspection images.

[0076] This embodiment improves the segmentation effect of wider security inspection images by introducing image thresholding, enabling the security inspection images to match the actual packages as closely as possible. For multiple packages that are relatively loosely arranged, image thresholding can obtain a more accurate correspondence between the waybill number and the security inspection image.

[0077] In this embodiment, the segmentation operation can be performed multiple times until the number of waybill numbers matches the number of security inspection images. During the segmentation and division steps described above, the segmented and divided security inspection images can directly replace the cut security inspection images in the security inspection image queue; the cut security inspection images can be deleted or saved separately.

[0078] When multiple packages overlap in width along the transport direction, additional auxiliary information can be considered to assist the synchronization process. For example, optical cameras can be installed in the security checkpoints to capture optical images to assist in image segmentation or division.

[0079] like Figure 9 The diagram shown is a flowchart illustrating the synchronous operation in some further embodiments of the security inspection image processing method according to this disclosure. (Reference) Figure 9 In some embodiments, the synchronization operation includes:

[0080] Step 110 (Judgment Step): Determine whether the number of security images in the security image queue is equal to the number of waybill numbers in the waybill number queue. If the number is equal, exit the synchronization operation. If the number is not equal, proceed to step 160.

[0081] Step 160: Perform image analysis on the optical images captured when each security image in the security image queue is generated to determine the number of packages in the optical images;

[0082] Step 170: Perform a segmentation operation or an image thresholding operation on the security inspection images with more than one package to obtain multiple security inspection images with the same number of packages, and then return to the judgment step.

[0083] The optical camera can capture images of packages as they pass through the X-ray beam of the security screening equipment, before, or after. In step 160, image analysis of the optical image of the packages makes it easier to determine the number of packages within the optical image. (Reference) Figure 10 For explanations regarding the waybill number sequence and security check image sequence in this example, please refer to [link / reference]. Figure 6 This will not be elaborated upon here. Image 2 in the security check image queue includes three packages. The number of packages in this security check image can be obtained by analyzing one or more optical images corresponding to this security check image.

[0084] For images 1 and 3, optical image analysis can determine that there is only a single package, therefore segmentation or image thresholding is unnecessary. However, for image 2, more targeted segmentation or image thresholding can be performed based on the analyzed number of packages. This reduces or avoids unnecessary operations on security images that do not require segmentation.

[0085] In actual synchronization, situations may arise where some or all security images in the security inspection image queue lack corresponding optical images (e.g., due to optical camera malfunction or inappropriate shooting timing). Alternatively, situations may occur where the number of packages cannot be determined through analysis of the optical images (e.g., the optical images are not clear enough or cannot be clearly distinguished from the background color). In such cases, refer to... Figure 5 The security image selection and segmentation operation in this embodiment involves selecting the security image with the largest width in the package transport direction from the security image queue, segmenting the selected security image along the package transport direction to obtain at least two segmented security images, and then returning to step 110.

[0086] The various embodiments of the above-described security inspection image processing method are applicable to different security inspection scenarios and have varying degrees of dependence on equipment. Furthermore, the various embodiments of the above-described security inspection image processing method can be implemented by security inspection equipment, or by a network-side management platform or other dedicated equipment. To minimize missed detections during waybill number retrieval, this disclosure also provides some embodiments of security inspection image processing systems.

[0087] like Figure 11 The diagram shown is a structural schematic of some embodiments of the security inspection image processing system according to this disclosure. (Reference) Figure 11In some embodiments, the security inspection image processing system includes a scanning device 10, a security inspection device 20, and a synchronization device 30. The scanning device 10 can be used to scan the waybill numbers of at least one package preparing to enter the security inspection channel, forming a waybill number queue including each waybill number. The security inspection device 20 can be used to scan at least one package entering the security inspection channel and generate security inspection images, forming a security image queue including each security inspection image. The synchronization device 30 can be configured to perform an embodiment of any of the aforementioned security inspection image processing methods. The synchronization device 30 can be located inside the security inspection device 20, on the network side, or independently of and connected to the security inspection device 20.

[0088] For embodiments requiring optical image assistance, refer to Figure 12 In some embodiments, the security inspection image processing system may further include an optical camera device 40. This optical camera device 40 may be disposed within the security inspection equipment 20 and is used to capture an optical image of the scanned package when generating a security inspection image.

[0089] Additionally, refer to Figure 12 In other embodiments of the security inspection image processing system, a synchronization operation switch may also be included. This synchronization operation switch may be located on the control panel or remote control of the security inspection equipment and is used to send synchronization commands to the synchronization device when operated. The synchronization operation switch may include physical or virtual buttons or handles.

[0090] This specification describes multiple embodiments in a progressive manner, with each embodiment having a different focus. Similar or identical parts between embodiments can be referred to interchangeably. For system embodiments, since their overall structure and involved components correspond to the content in the method embodiments, the description is relatively simple; relevant parts can be referred to in the descriptions of the method embodiments.

[0091] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0092] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A security inspection image processing method, comprising: In response to a synchronization command, a synchronization operation is triggered between the queue of waybill numbers corresponding to a preset number of packages and the queue of security inspection images of the preset number of packages, so that the preset number matches the number of security inspection images in the synchronized queue of security inspection images; Synchronization operations include: Judgment Step: Determine whether the number of security inspection images in the security inspection image queue is equal to the number of waybill numbers in the waybill number queue; If the quantities are equal, exit the synchronization operation; If the quantities are not equal, image analysis is performed on the optical images taken when each security image is generated in the security image queue to determine the number of packages in the optical images. Perform a segmentation operation or an image thresholding operation on the security inspection images with more than one package to obtain multiple security inspection images with the same number of packages, and then return to the judgment step.

2. The security inspection image processing method according to claim 1, wherein, If some or all of the security images in the security image queue lack corresponding optical images, or if the number of packages cannot be obtained by analyzing the optical images, then the security image with the largest width in the package transport direction is selected from the security image queue, and the selected security image is segmented along the package transport direction to obtain at least two segmented security images, and then the process returns to the judgment step.

3. The security inspection image processing method according to claim 1, wherein, After the synchronization operation is completed, each waybill number in the waybill number queue is matched one-to-one with each security inspection image in the synchronized security inspection image queue according to the queue order.

4. The security inspection image processing method according to claim 3 further includes the operation of retrieving security inspection images according to waybill numbers, including: Search for the security inspection image corresponding to the input waybill number; Output the security inspection image and at least one security inspection image that is located before and / or after the security inspection image in the security inspection image queue.

5. The security inspection image processing method according to claim 1, wherein, The synchronization command comes from external input based on the control panel or remote control, or is automatically generated during the package scanning process.

6. A security inspection image processing system, comprising: A scanning device is used to scan the waybill number of at least one package that is about to enter the security checkpoint to form a waybill number queue including each waybill number. Security inspection equipment is used to scan at least one package entering a security inspection channel and generate security images to form a security image queue including the individual security images. and The synchronization device is configured to perform the security inspection image processing method according to any one of claims 1 to 5.

7. The security inspection image processing system according to claim 6 further includes: An optical camera device, installed within the security inspection equipment, is used to capture an optical image of the scanned package when generating a security inspection image.

8. The security inspection image processing system according to claim 6 further includes: A synchronization operation switch is installed on the control panel or remote control of the security inspection equipment, and is used to send synchronization commands to the synchronization device when operated.

Images