Pixel row adjusting method and system in laser scanning imaging process and related equipment

Abstract

The embodiment of the invention provides a pixel line adjusting method and system in a laser scanning imaging process and related equipment, which are used for reducing or eliminating laser imaging errors caused by upper stacking and lower leakage in the laser scanning process. The method provided by the embodiment of the invention comprises the following steps: acquiring the offset of a developing area of each laser light source in a scanning vertical direction; according to the offset of each developing area in the scanning vertical direction, adjusting the number of pixel rows of the exposure area distributed by each laser light source; wherein if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced, and if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

Description

Technical Field

[0001] The present invention relates to the field of laser direct imaging technology, and in particular to a method, system and related equipment for adjusting pixel rows in a laser scanning imaging process. Background Art

[0002] Laser direct imaging refers to exposing the pixels on the photosensitive resin coating surface through laser, thereby generating the desired image on the photosensitive resin coating surface. Common laser direct imaging methods include: laser imaging based on DMD (digital micromirror device), laser array scanning imaging, etc.

[0003] When the laser array is used for scanning imaging, taking the exposure image as a rectangular area as an example, the entire rectangular area is cut into multiple small rectangular areas and assigned to each laser in the laser array for exposure. The height of the rectangle assigned to each laser is the distance between two lasers. The applicant found that for the entire exposure area, the pixel rows on both sides of the image shrink toward the center of the image, resulting in the phenomenon of overlap and leakage. Figure 1 As shown, laser A, laser B, laser C, and laser D are all adjusted from bottom to top (i.e., after each row of pixels is scanned, they are stepped in the vertical direction to move to the next row of pixels). When laser A and laser B are located below the image, the first row of lasers shrinks upward, and the last row is not affected by the expansion and contraction and remains in the same position, which causes the height of the final exposed pattern to become smaller, thereby generating a gap at the junction of laser A and laser B (leakage below); when laser C and laser D are located above the image, the first row of lasers shrinks downward, and the last row is not affected by the expansion and contraction and remains in the same position, resulting in an increase in the height of the rectangle, thereby causing an overlap at the junction of laser C and laser D (overlapping phenomenon).

[0004] How to reduce or eliminate the laser imaging error caused by overlap and leakage during laser scanning has become an urgent problem to be solved in the field of laser scanning imaging technology. Summary of the invention

[0005] Embodiments of the present invention provide a method, system and related equipment for adjusting pixel rows during laser scanning imaging, which are used to reduce or eliminate laser imaging errors caused by overlap and leakage during laser scanning.

[0006] A first aspect of an embodiment of the present invention provides a method for adjusting pixel rows during laser scanning imaging, which may include:

[0007] Obtaining the offset of the developing area of ​​each laser light source in the vertical scanning direction;

[0008] The number of pixel rows of the exposure area assigned to each laser light source is adjusted according to the offset of each developing area in the vertical scanning direction; wherein, if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

[0009] Optionally, as a possible implementation, in the embodiment of the present invention, obtaining the offset of the developing area of ​​each laser light source in the scanning vertical direction may include:

[0010] The actual deviation value between the actual position and the theoretical position of the marking point in the developing area of ​​each laser light source is detected, and the actual deviation value corresponding to each laser light source is used as the offset of the corresponding laser light source.

[0011] Optionally, as a possible implementation, in the embodiment of the present invention, obtaining the offset of the developing area of ​​each laser light source in the scanning vertical direction may include:

[0012] The positions of the marking points in the exposure areas assigned to the respective laser light sources are input into a preset offset model to calculate the predicted offsets of the respective marking points, and the predicted offsets corresponding to the respective laser light sources are used as the offsets of the corresponding laser light sources.

[0013] Optionally, as a possible implementation manner, the method for adjusting pixel rows during laser scanning imaging in the embodiment of the present invention may further include:

[0014] The image area after exposure and development is divided into a plurality of development areas, and the actual deviation value between the position of the marking point of each development area and the theoretical position is detected to form an input sequence, and the input sequence is input into a preset initial model for training to obtain an offset model.

[0015] Optionally, as a possible implementation manner, in the embodiment of the present invention, inputting the input sequence into a preset initial model for training to obtain an offset model may include:

[0016] According to r = s / ∑(1 / d i 2 ) Calculate the offset parameter r of the marker points in each area, where s is the actual deviation value corresponding to the current marker point, d i is the distance between the remaining marked points and the current marked point, and i is the label of each area;

[0017] According to s = r * ∑ (1 / d i 2 ) Establish a marker point offset matrix for each area;

[0018] An offset mapping model for any exposure point is established based on the linear proportional relationship between the exposure time of any exposure point and the marking point in each area.

[0019] A second aspect of an embodiment of the present invention provides a system for adjusting pixel rows during laser scanning imaging, which may include:

[0020] An acquisition module, used to acquire the offset of the developing area of ​​each laser light source in the vertical scanning direction;

[0021] An adjustment module is used to adjust the number of pixel rows in the exposure area allocated to each laser light source according to the offset of each developing area in the vertical scanning direction; wherein, if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

[0022] Optionally, as a possible implementation, in the embodiment of the present invention, the acquisition module may include:

[0023] The detection unit is used to detect the actual deviation value between the actual position and the theoretical position of the marking point of the developing area of ​​each laser light source, and use the actual deviation value corresponding to each laser light source as the offset of the corresponding laser light source.

[0024] Optionally, as a possible implementation, in the embodiment of the present invention, the acquisition module may include:

[0025] The prediction unit is used to input the position of the marking point in the exposure area assigned to each laser light source into a preset offset model to calculate the predicted offset of each marking point, and use the predicted offset corresponding to each laser light source as the offset of the corresponding laser light source.

[0026] Optionally, as a possible implementation manner, the pixel row adjustment system during the laser scanning imaging process in the embodiment of the present invention may further include:

[0027] A detection module, which divides the image area after exposure and development into a plurality of development areas, and detects the actual deviation between the position of the marking point of each development area and the theoretical position to form an input sequence;

[0028] The training module inputs the input sequence into a preset initial model for training to obtain an offset model.

[0029] Optionally, as a possible implementation, the training module in the embodiment of the present invention may include:

[0030] The first calculation unit, according to r = s / ∑ (1 / d i2 ) Calculate the offset parameter r of the marker points in each area, where s is the actual deviation value corresponding to the current marker point, d i is the distance between the remaining marked points and the current marked point, and i is the label of each area;

[0031] The second calculation unit, according to s=r*∑(1 / d i 2 ) Establish a marker point offset matrix for each area;

[0032] The third calculation unit establishes an offset mapping model of any exposure point according to a linear proportional relationship between the exposure time of any exposure point and the marking point in each area.

[0033] A third aspect of an embodiment of the present invention provides a computer device, the computer device comprising a processor, the processor being configured to implement the steps in the first aspect and any possible implementation manner of the first aspect when executing a computer program stored in a memory.

[0034] A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the first aspect and any possible implementation of the first aspect are implemented.

[0035] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0036] In an embodiment of the present invention, the offset of the developing area of ​​each laser light source in the vertical scanning direction is obtained in advance. If the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced to eliminate pixel row overlap; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased to eliminate pixel row gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a schematic diagram of the top-stacked and bottom-leaked images in the existing laser scanning technology solution;

[0038] Figure 2 A schematic diagram of an embodiment of a method for adjusting pixel rows in a laser scanning imaging process according to an embodiment of the present invention;

[0039] Figure 3 FIG. 1 is a schematic diagram of an embodiment of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0040] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0041] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0042] In the description of this application, unless otherwise specified, "multiple" means two or more. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components.

[0043] For ease of understanding, the laser array in an embodiment of the present invention is described below. The laser array is composed of laser light sources arranged non-overlappingly in the scanning direction. The position distribution in the scanning direction may overlap or not overlap, as long as the relative positions of the lasers remain fixed. In actual applications, after the laser array scans a distance of one pixel row in a direction parallel to the pixel row, it adjusts and moves in the direction perpendicular to the scanning (i.e., the vertical direction of the pixel row) (i.e., moves a pixel distance from top to bottom or a pixel distance from bottom to top in the vertical direction of the pixel row), and then performs scanning and exposure of the next batch of pixel rows. The specific process in the embodiment of the present invention is then described below, please refer to Figure 2 , an embodiment of a method for adjusting pixel rows in a laser scanning imaging process in an embodiment of the present invention may include:

[0044] S201: Obtaining the offset of the developing area of ​​each laser light source in the scanning vertical direction;

[0045] Based on the laser array scanning imaging process, the applicant found that since each laser in the laser array exposes different areas respectively, the order of exposure of different pixel rows is different. The area exposed first has a certain elastic force on the area exposed later, which ultimately causes the pixel rows on both sides to shrink toward the center of the image, resulting in the phenomenon of upper overlap and lower leakage.

[0046] In order to eliminate or reduce the phenomenon of overlapping and leaking, the applicant proposed pre-detection or model prediction of each laser light source, resulting in laser imaging errors. Since the position of the lasers in the laser array remains unchanged, the relative position of the subsequent exposure area remains unchanged, and the laser imaging errors are also similar. Based on this analysis, when the same laser array is used for exposure imaging again, the number of pixel rows required to be exposed for each laser light source can be adaptively adjusted, thereby reducing or eliminating the laser imaging errors caused by overlapping and leaking during the laser scanning process.

[0047] Optionally, as a possible implementation, obtaining the offset of the development area of ​​each laser light source in the vertical direction of scanning may include: detecting the actual deviation value between the actual position and the theoretical position of the marking point of the development area of ​​each laser light source, and taking the actual deviation value corresponding to each laser light source as the offset of the corresponding laser light source.

[0048] Optionally, as a possible implementation, obtaining the offset of the development area of ​​each laser light source in the vertical direction of scanning may include: inputting the position of the marking point in the exposure area assigned to each laser light source into a preset offset model to calculate the predicted offset of each marking point, and using the predicted offset corresponding to each laser light source as the offset of the corresponding laser light source.

[0049] For example, in practical applications, each laser light source may be allocated an area to be exposed in advance, and then the image area after exposure and development may be divided into a plurality of development areas, and the actual deviation value s between the position of the marking point of each development area and the theoretical position may be detected to form an input sequence, and the input sequence may be input into a preset initial model for training to obtain an offset model. The process of establishing the preset initial model may include: according to r=s / ∑(1 / d i 2 ) Calculate the offset parameter r of the marker points in each area, where s is the actual deviation value corresponding to the current marker point, d i is the distance between the remaining marking points and the current marking point, ∑(1 / d i 2 ) for each (1 / d i 2 ) is the summation formula; according to the formula s=r*∑(1 / d i 2) establish a marker point offset matrix for each area; and establish an offset mapping model for any exposure point based on a linear proportional relationship between any exposure point in each area and the exposure time of the marker point.

[0050] It is understandable that the above modeling process is only exemplary. In actual application, it can also be based on s i With d i There is an inverse proportional correlation between them to establish other forms of univariate function relationships, and then establish a corresponding preset initial model to perform approximate simulation calculations on the offset, which is not limited here.

[0051] S202: adjusting the number of pixel rows in the exposure area allocated to each laser light source according to the offset of each development area in the vertical scanning direction;

[0052] After the preset initial model is trained to obtain the offset model, the number of pixel rows in the exposure area allocated to each laser light source can be adjusted according to the offset of each development area in the vertical scanning direction.

[0053] Specifically, if the offset of the target developing area is opposite to the direction of the laser light source adjustment movement, the number of pixel rows of the target developing area corresponding to the laser light source is reduced; if the offset of the target developing area is the same as the direction of the laser light source adjustment movement, the number of pixel rows of the target developing area corresponding to the laser light source is increased. Figure 1 As shown in the figure, the adjustment movement direction of the laser light source is vertically from bottom to top, then the offset direction (vertical upward) of laser light source (marked as laser in the figure) A and laser B is the same as the adjustment movement direction (vertical upward) of the laser light source and a downward leakage phenomenon occurs. The number of pixel rows required to be exposed by the corresponding laser light source (laser A, B) should be increased to fill the gap; correspondingly, the offset direction of laser C and laser D is opposite to the adjustment movement direction of the laser light source and an upward overlap phenomenon occurs. The number of pixel rows in the exposure area allocated to the corresponding laser light source (laser C, D) should be reduced to eliminate the overlap.

[0054] Preferably, in an embodiment of the present application, the number of pixel rows reduced or increased can be approximately equal to the ratio of the offset to the spacing between adjacent pixel rows (the ratio can be rounded), and can also be less than the ratio of the offset to the spacing between adjacent pixel rows.

[0055] It can be seen from the above disclosure that in an embodiment of the present application, the offset of the development area of ​​each laser light source in the vertical direction of scanning is obtained in advance. If the offset of the target development area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target development area is reduced to eliminate pixel row overlap; if the offset of the target development area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target development area is increased to eliminate pixel row gaps.

[0056] The embodiment of the present application further provides a system for adjusting pixel rows during laser scanning imaging, which may include:

[0057] An acquisition module, used to acquire the offset of the developing area of ​​each laser light source in the vertical scanning direction;

[0058] An adjustment module is used to adjust the number of pixel rows in the exposure area allocated to each laser light source according to the offset of each developing area in the vertical scanning direction; wherein, if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

[0059] Optionally, as a possible implementation, in the embodiment of the present invention, the acquisition module may include:

[0060] The detection unit is used to detect the actual deviation value between the actual position and the theoretical position of the marking point of the developing area of ​​each laser light source, and use the actual deviation value corresponding to each laser light source as the offset of the corresponding laser light source.

[0061] Optionally, as a possible implementation, in the embodiment of the present invention, the acquisition module may include:

[0062] The prediction unit is used to input the position of the marking point in the exposure area assigned to each laser light source into a preset offset model to calculate the predicted offset of each marking point, and use the predicted offset corresponding to each laser light source as the offset of the corresponding laser light source.

[0063] Optionally, as a possible implementation manner, the pixel row adjustment system during the laser scanning imaging process in the embodiment of the present invention may further include:

[0064] A detection module, which divides the image area after exposure and development into a plurality of development areas, and detects the actual deviation between the position of the marking point of each development area and the theoretical position to form an input sequence;

[0065] The training module inputs the input sequence into the preset initial model for training to obtain the offset model.

[0066] Optionally, as a possible implementation, the training module in the embodiment of the present invention may include:

[0067] The first calculation unit, according to r = s / ∑ (1 / d i 2 ) Calculate the offset parameter r of the marker points in each area, where s is the actual deviation value corresponding to the current marker point, d iis the distance between the remaining marked points and the current marked point, and i is the label of each area;

[0068] The second calculation unit, according to s=r*∑(1 / d i 2 ) Establish a marker point offset matrix for each area;

[0069] The third calculation unit establishes an offset mapping model of any exposure point according to a linear proportional relationship between the exposure time of any exposure point and the marking point in each area.

[0070] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0071] The pixel row adjustment system in the laser scanning imaging process in the embodiment of the present invention is described above from the perspective of modular functional entities. Figure 3 , the computer device in the embodiment of the present invention is described below from the perspective of hardware processing:

[0072] The computer device 1 may include a memory 11, a processor 12 and an input / output bus 13. The processor 12 implements the above Figure 1 The steps in the method embodiment shown are, for example, Figure 2 Alternatively, when the processor executes the computer program, the functions of each module or unit in the above-mentioned device embodiments are realized.

[0073] The memory 11 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 11 may be an internal storage unit of the computer device 1, such as a hard disk of the computer device 1. In other embodiments, the memory 11 may also be an external storage device of the computer device 1, such as a plug-in hard disk equipped on the computer device 1, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. Further, the memory 11 may also include both an internal storage unit of the computer device 1 and an external storage device. The memory 11 may not only be used to store application software and various types of data installed in the computer device 1, such as the code of a computer program, etc., but may also be used to temporarily store data that has been output or is to be output.

[0074] In some embodiments, the processor 12 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 11, such as executing a computer program.

[0075] The input / output bus 13 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

[0076] Furthermore, the computer device may also include a wired or wireless network interface 14. The network interface 14 may optionally include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is usually used to establish a communication connection between the computer device 1 and other electronic devices.

[0077] Optionally, the computer device 1 may also include a user interface, which may include a display (Display), an input unit such as a keyboard (Keyboard), and optionally, the user interface may also include a standard wired interface and a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the computer device 1 and to display a visual user interface.

[0078] Figure 3 Only the computer device 1 having components 11-14 and a computer program is shown, and those skilled in the art will understand that Figure 3 The structure shown does not constitute a limitation on the computer device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0079] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the following can be achieved: Figure 2 Alternatively, when the processor executes the computer program, the functions of each module or unit in the above-mentioned device embodiments are realized.

[0080] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and units can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0081] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0082] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0083] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0084] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for adjusting pixel rows during laser scanning imaging, characterized in that: A laser array consisting of laser light sources arranged non-overlappingly in the vertical direction for scanning, including: Obtaining the offset of the developing area of ​​each laser light source in the vertical scanning direction; The number of pixel rows of the exposure area assigned to each laser light source is adjusted according to the offset of each developing area in the vertical scanning direction; wherein, if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

2. The method according to claim 1, characterized in that: Obtain the offset of the developing area of ​​each laser light source in the vertical direction of scanning, including: The actual deviation value between the actual position and the theoretical position of the marking point in the developing area of ​​each laser light source is detected, and the actual deviation value corresponding to each laser light source is used as the offset of the corresponding laser light source.

3. The method according to claim 1, characterized in that Obtain the offset of the developing area of ​​each laser light source in the vertical direction of scanning, including: The positions of the marking points in the exposure areas assigned to the respective laser light sources are input into a preset offset model to calculate the predicted offsets of the respective marking points, and the predicted offsets corresponding to the respective laser light sources are used as the offsets of the corresponding laser light sources.

4. The method according to claim 3, characterized in that Also includes: The image area after exposure and development is divided into a plurality of development areas, and the actual deviation value between the position of the marking point of each development area and the theoretical position is detected to form an input sequence, and the input sequence is input into a preset initial model for training to obtain an offset model.

5. The method according to claim 4, characterized in that Inputting the input sequence into a preset initial model for training to obtain an offset model includes: According to r = s / ∑ (1 / d i 2 ) Calculate the offset parameter r of the marker point in each area, where s is the actual deviation value corresponding to the current marker point, d i is the distance between the remaining marked points and the current marked point, and i is the label of each area; According to s = r * ∑ (1 / d i 2 ) Establish a marker point offset matrix for each area; An offset mapping model for any exposure point is established based on the linear proportional relationship between the exposure time of any exposure point and the marking point in each area.

6. A pixel row adjustment system during laser scanning imaging, characterized in that: include: An acquisition module, used to acquire the offset of the developing area of ​​each laser light source in the vertical scanning direction; An adjustment module is used to adjust the number of pixel rows in the exposure area allocated to each laser light source according to the offset of each developing area in the vertical scanning direction; wherein, if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced; if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

7. The system according to claim 6, characterized in that Get modules, including: The detection unit is used to detect the actual deviation value between the actual position and the theoretical position of the marking point of the developing area of ​​each laser light source, and use the actual deviation value corresponding to each laser light source as the offset of the corresponding laser light source.

8. The system according to claim 6, characterized in that Get modules, including: The prediction unit is used to input the position of the marking point in the exposure area assigned to each laser light source into a preset offset model to calculate the predicted offset of each marking point, and use the predicted offset corresponding to each laser light source as the offset of the corresponding laser light source.

9. A computer device, characterized in that: The computer device comprises a processor, and the processor is configured to implement the method according to any one of claims 1 to 5 when executing a computer program stored in a memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 5 is implemented.

Images