Platinum relief microcosmic line brightening method based on laser etching

Abstract

The invention provides a platinum relief microcosmic line brightening method based on laser etching, which comprises the following steps: acquiring initial line design parameters from platinum surface characteristics through a preset laser parameter database, and generating regular lines by adopting a pulse laser to obtain initial line distribution data; according to the preliminary line distribution data, a controlled tiny disturbance sequence is generated by adopting a random disturbance algorithm, and parameter adjustment is carried out for line depth, direction and spacing to obtain disturbance line distribution data; the line distribution data are optimized, high-precision laser etching equipment is adopted for executing line machining, micro lines with controlled disturbance are generated, and machined line data are obtained; and according to the gloss effect evaluation data, a feedback control algorithm is adopted to adjust the laser parameter database, updated line design parameters are generated, and final line processing parameters are obtained. According to the method, the glossiness and the visual effect of the platinum surface are effectively improved, and an innovative solution is provided for embossment manufacturing.

Description

Technical Field

[0001] The invention relates to a method for brightening platinum relief micro-textures based on laser etching. Background Art

[0002] Laser etching technology plays a crucial role in metal surface treatment, demonstrating its unique value in enhancing the visual effects and functionality of platinum relief micro-textures. By precisely controlling laser parameters, this technology can create fine textures on metal surfaces, enhancing gloss and three-dimensionality. It is widely used in jewelry, precision instruments, and decorative materials. However, existing laser etching methods have significant limitations in practical applications. Many traditional approaches overly focus on regularity and consistency in the texture, resulting in a monotonous visual effect that lacks natural beauty. Overly regular textures can even cause unnecessary optical interference, affecting overall gloss.

[0003] In this context, the optimization of laser etching faces core challenges. Although the regular design of the texture facilitates process control, it is easy to make the light reflection too single due to the lack of variation, making it difficult to present a rich visual level. This single reflection characteristic will amplify the light interference effect, produce undesirable dispersion or glare, and reduce the quality of the surface brightening effect. Therefore, how to introduce appropriate changes to optimize light reflection while maintaining the overall consistency of the texture has become a technical problem that needs to be solved urgently. What is more complicated is that this change must be precisely controllable to avoid destroying the overall coordination of the texture, while ensuring the stability and repeatability of the process.

[0004] Therefore, how to introduce controlled micro-perturbations on the platinum relief micro-textures through laser etching technology to optimize the changes in texture depth, direction or spacing, thereby balancing regularity and natural visual effects, becomes a key issue in this study. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention proposes a platinum relief micro-texture brightening method based on laser etching, which can effectively improve the glossiness and visual effect of the platinum surface by precisely controlling the micro-texture structure.

[0006] The technical solution of the present invention is achieved as follows: A method for brightening platinum relief micro-textures based on laser etching, comprising the following steps: Using a preset laser parameter database, the initial texture design parameters are obtained from the surface characteristics of platinum. A pulsed laser is used to generate regular textures and obtain preliminary texture distribution data. Based on the preliminary grain distribution data, a random perturbation algorithm is used to generate a controlled small perturbation sequence, and parameters are adjusted for grain depth, direction, and spacing to obtain perturbation grain distribution data. Obtain light reflection characteristic parameters from the disturbance pattern distribution data, use the optical simulation model to calculate the reflected light intensity distribution and interference effect, determine whether there is dispersion or glare, and obtain the light reflection optimization parameters; If the light reflection optimization parameters show that the interference effect exceeds the preset threshold, the iterative optimization algorithm is used to adjust the disturbed texture distribution data, recalculate the texture depth, direction and spacing, and obtain the optimized texture distribution data; By optimizing the texture distribution data and using high-precision laser etching equipment to perform texture processing, micro-textures with controlled disturbances are generated, and the processed texture data is obtained; Obtain surface gloss parameters from processed texture data, use spectral analysis technology to detect the gloss effect, determine whether it meets the natural visual effect standard, and obtain gloss effect evaluation data; According to the gloss effect evaluation data, the feedback control algorithm is used to adjust the laser parameter database, generate updated texture design parameters, and obtain the final texture processing parameters; Based on the final texture processing parameters, batch processing is performed using an automated laser etching system to generate platinum relief textures that meet the gloss effect and natural visual effects, and obtain batch processing texture data.

[0007] The beneficial effects of the present invention are as follows: initial texture design parameters are obtained through a preset laser parameter database, a pulsed laser is used to generate regular textures, and a random perturbation algorithm is used to adjust the parameters to obtain perturbed texture distribution data. Subsequently, the present invention uses an optical simulation model to calculate the reflected light intensity distribution and interference effect, and adjusts the texture parameters through an iterative optimization algorithm to achieve light reflection optimization. Finally, high-precision laser etching equipment is used to perform texture processing, and the gloss effect is detected through spectral analysis technology. A feedback control algorithm is used to adjust the laser parameters to achieve mass production of platinum relief textures that conform to natural visual effects. The present invention effectively improves the gloss and visual effect of the platinum surface by precisely controlling the microscopic texture structure, providing an innovative solution for relief manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 Flowchart of the method of the present invention. DETAILED DESCRIPTION

[0010] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0011] Reference Figure 1 A method for brightening platinum relief micro-textures based on laser etching, characterized by comprising the following steps: S101 obtains initial texture design parameters from the surface characteristics of platinum through a preset laser parameter database, uses a pulsed laser to generate regular textures, and obtains preliminary texture distribution data; 1) Obtaining initial texture design parameters that match the surface characteristics of platinum from a preset laser parameter database to obtain surface texture parameters. If the surface texture parameters meet a preset threshold, determining the surface characteristics of platinum through material surface analysis to obtain surface characteristic data, and using a pulsed laser to perform laser pulse control to generate regular textures and obtain a preliminary texture distribution; 2) Evaluate the initial grain distribution through grain regularity measurement. If the regularity measurement value reaches the preset standard, the grain distribution data is determined.

[0012] represents the regularity measure of the texture, Indicates the number of texture areas, Indicates the number of sampling points in each area, Indicates the texture depth of the kth point in the i-th region, represents the average depth of the i-th region; 3) Use the convolutional neural network algorithm to extract the features of the texture distribution data and obtain the texture feature set. Based on the texture feature set, through laser processing accuracy analysis, it is judged whether the texture distribution data meets the processing requirements and the processing quality data is obtained.

[0013] Indicates the machining accuracy error, Indicates the number of measurement points, Indicates the actual processing depth, Indicates the target processing depth; 4) If the processing quality data meets the preset accuracy standard, the final texture distribution data is output.

[0014] S102 generates a controlled micro-disturbance sequence using a random perturbation algorithm based on the preliminary grain distribution data, adjusts parameters for grain depth, direction, and spacing, and obtains perturbed grain distribution data; 1) Using random perturbation algorithm to process preliminary texture distribution data, generate small perturbation sequence, adjust texture depth parameter, texture direction parameter and texture spacing parameter, and obtain perturbation texture distribution data; 2) Analyzing the disturbed texture distribution data through Fourier transform, extracting the texture frequency characteristics, and obtaining the texture frequency distribution data. If the spectrum peak of the texture frequency distribution data meets the preset threshold, the texture frequency distribution data is smoothed by the mean filtering method to obtain the smoothed frequency distribution data; 3) Based on the smoothed frequency distribution data, the principal component analysis algorithm is used to extract the main eigenvectors of the texture distribution to obtain a texture feature vector set. If the eigenvalue variance ratio of the texture feature vector set meets the preset standard, the texture feature vector set is converted back to the spatial domain through inverse Fourier transform to obtain optimized texture distribution data; 4) Based on the optimized texture distribution data, cluster analysis method is used to divide the texture distribution into regions to obtain texture regional distribution data. If the intra-cluster variance of the texture regional distribution data is lower than the preset threshold, the final texture distribution data is determined.

[0015] S103 obtains light reflection characteristic parameters from the disturbance pattern distribution data, calculates the reflected light intensity distribution and interference effect using an optical simulation model, determines whether there is dispersion or glare, and obtains light reflection optimization parameters; 1) Extracting light reflection characteristic parameters from the disturbance pattern distribution data, and calculating the initial reflected light intensity distribution using a preset ray tracing algorithm to obtain initial light intensity distribution data; 2) Based on the initial light intensity distribution data, the optical simulation model is used to calculate the interference effect, extract the interference fringe characteristics, and obtain the interference effect data. If the fringe density of the interference effect data exceeds the preset threshold, the Fourier transform is used to analyze the interference effect data, extract the frequency characteristics, and obtain the interference frequency distribution data.

[0016] represents the two-dimensional Fourier transform result, The spatial function representing the interference effect, and represent the frequency variables in the x and y directions respectively, and i is the imaginary unit; 3) According to the interference frequency distribution data, determine whether the dispersion phenomenon exists. If the peak width of the frequency distribution exceeds the preset threshold, it is determined that the dispersion phenomenon exists and obtain the dispersion judgment result. According to the dispersion judgment result, the interference frequency distribution data is smoothed by the mean filtering method to obtain the smoothed frequency distribution data.

[0017] represents the smoothed frequency distribution function, M represents the filter window size, represents the mean filter kernel function, represents the original frequency distribution function, k=(M-1) / 2; 4) extracting glare features from the smoothed frequency distribution data. If the intensity value of the glare feature exceeds a preset threshold, it is determined that glare exists, and a glare judgment result is obtained;

[0018] represents the characteristic intensity of glare, represents the signal analysis interval, represents the second derivative of the smoothed frequency distribution,

[0019] Indicates the glare judgment result, Indicates the preset glare threshold. When the glare characteristic intensity When the value is greater than the threshold, it is determined that there is glare and output 1, otherwise it outputs 0; 5) According to the dispersion judgment results and the glare judgment results, the light reflection characteristic parameters are adjusted, and the reflected light intensity distribution is updated using an iterative optimization algorithm to obtain the light reflection optimization parameters.

[0020] S104: If the light reflection optimization parameter shows that the interference effect exceeds the preset threshold, an iterative optimization algorithm is used to adjust the disturbed texture distribution data, and the texture depth, direction and spacing are recalculated to obtain optimized texture distribution data; 1) If the interference effect of the optimized texture distribution data still exceeds the preset threshold, a ray tracing algorithm is used to calculate the adjusted reflected light intensity distribution to obtain reflected light intensity distribution data;

[0021] represents the reflected light intensity distribution, represents the surface reflectivity, represents the incident light intensity, represents the angle of incidence; 2) Based on the reflected light intensity distribution data, the frequency characteristics of the interference effect are extracted using Fourier transform to obtain the interference frequency distribution data. If the peak width of the interference frequency distribution data exceeds the preset threshold, the interference frequency distribution data is smoothed using the Gaussian filter method to obtain the smoothed frequency distribution data. 3) According to the smoothed frequency distribution data, the periodic characteristics of the texture distribution are extracted to obtain the texture periodic distribution data.

[0022] represents the texture period distribution function, represents the periodic eigenvalue, represents the smoothed frequency distribution function; If the periodic characteristic value of the texture periodic distribution data deviates from the preset range, the gradient descent algorithm is used to adjust the texture depth and spacing parameters to obtain the adjusted texture parameter data, and the texture distribution data is recalculated to obtain the final optimized texture distribution data.

[0023] represents the final optimized texture distribution function, represents the texture depth distribution function, represents the texture spacing distribution function, and is the weight coefficient.

[0024] S105 optimizes the texture distribution data and uses high-precision laser etching equipment to perform texture processing, generating micro-textures with controlled disturbances and obtaining the processed texture data; 1) Preprocessing the texture distribution data, adjusting the texture parameters, and obtaining preprocessed texture data. High-precision laser etching technology is used to perform initial texture processing to generate preliminary texture structure data. If the disturbance characteristics of the preliminary texture structure data deviate from a preset threshold, a convolutional neural network algorithm is used to extract features from the texture structure data to obtain texture disturbance feature data. 2) Based on the texture disturbance feature data, the laser etching parameters are adjusted using a gradient descent algorithm to optimize the texture depth and spacing to obtain optimized etching parameter data. The texture structure is then processed again using high-precision laser etching technology to generate optimized texture structure data. 3) Based on the optimized texture structure data, the spatial distribution characteristics of the texture are extracted to obtain texture distribution characteristic data. If the periodicity of the texture distribution characteristic data deviates from the preset range, the texture distribution characteristic data is smoothed by the Gaussian filtering method to obtain the final texture data.

[0025] S106 obtains surface gloss parameters from the processed texture data, uses spectral analysis technology to detect the gloss effect, determines whether it meets the natural visual effect standard, and obtains gloss effect evaluation data; 1) Extract surface gloss parameters from the processed texture data, use spectral analysis technology to generate gloss distribution characteristic data, and compare it with the preset natural visual standard. If the gloss distribution characteristic deviates from the preset threshold, gloss deviation data is generated.

[0026] D represents the gloss deviation value, Indicates the actual gloss value, Indicates the standard gloss value, K indicates the number of measurement points; 2) For the gloss deviation data, the Gaussian filtering method is used to smooth the gloss distribution characteristic data to obtain smooth gloss data.

[0027] represents the smoothed glossiness function, represents the original glossiness function, represents the smoothing coefficient, Represents the convolution operation; 3) Extract gloss uniformity features from smooth gloss data, use principal component analysis algorithm to generate gloss uniformity feature data, and judge by preset uniformity threshold. If the uniformity feature is lower than the threshold, generate gloss adjustment parameter data

[0028] Represents the gloss adjustment parameter, represents the adjustment coefficient, represents the target uniformity threshold, Represents the current uniformity eigenvalue; 4) Based on the gloss adjustment parameter data, the gradient descent algorithm is used to optimize the gloss distribution characteristics to obtain the optimized gloss distribution data. The final gloss effect characteristics are extracted from the optimized gloss distribution data to generate gloss effect evaluation data.

[0029] Indicates the final gloss effect score, represents the optimized gloss parameter, represents the target gloss parameter, represents the weight coefficient, Indicates the number of evaluation indicators.

[0030] S107 uses a feedback control algorithm to adjust the laser parameter database based on the gloss effect evaluation data, generates updated texture design parameters, and obtains the final texture processing parameters; using the final texture processing parameters, an automated laser etching system is used to perform batch processing to generate platinum relief textures that meet the gloss effect and natural visual effects, and obtain batch processing texture data.

[0031] 1) Extract the deviation distribution characteristics from the gloss effect evaluation data, calculate the deviation mean and variance, and obtain the deviation distribution parameters. Based on the deviation distribution parameters, a feedback control algorithm is used to generate the laser parameter adjustment coefficient to obtain the adjustment coefficient data.

[0032] represents the adjustment coefficient, represents the control gain, represents the mean deviation, represents the deviation variance, t represents the time step; 2) Extract the laser parameter update value from the adjustment coefficient data, use the matrix operation method to update the laser parameter database, and obtain the updated laser parameter set.

[0033] represents the updated laser parameters, represents the original laser parameters, represents the adjustment coefficient, Represents the parameter matrix dimension; 3) Generate the texture design parameter adjustment vector based on the updated laser parameter set, and use the linear mapping method to calculate the texture parameter change to obtain the texture design parameter set.

[0034] Indicates the texture design parameters, represents the mapping matrix, represents the updated laser parameters, represents the change vector; 4) Extract processing control features from the texture design parameter set. If the processing control features exceed the preset threshold, the boundary constraint method is used to adjust the parameter range to obtain the restricted texture parameter set.

[0035] represents the restricted texture parameters, Indicates the texture design parameters, Indicates the upper limit of texture design parameters, Indicates the lower limit of texture design parameters; 5) Based on the restricted texture parameter set, the parameter fusion method is used to generate the final texture processing parameters to obtain the processing parameter data. The processing stability characteristics are extracted from the processing parameter data, and the principal component analysis algorithm is used to generate the stability index to obtain the final processing parameter set.

[0036] represents the stability index, Represents the final processing parameters, represents the i-th parameter feature, represents the total number of features; 6) Using the final texture processing parameters, batch processing is performed using an automated laser etching system to generate platinum relief textures that meet the gloss effect and natural visual effect, thereby obtaining batch processing texture data.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for brightening platinum relief micro-textures based on laser etching, characterized in that: The following steps are involved: Using a preset laser parameter database, the initial texture design parameters are obtained from the surface characteristics of platinum. A pulsed laser is used to generate regular textures and obtain preliminary texture distribution data. Based on the preliminary grain distribution data, a random perturbation algorithm is used to generate a controlled small perturbation sequence, and parameters are adjusted for grain depth, direction, and spacing to obtain perturbation grain distribution data. Obtain light reflection characteristic parameters from the disturbance pattern distribution data, use the optical simulation model to calculate the reflected light intensity distribution and interference effect, determine whether there is dispersion or glare, and obtain the light reflection optimization parameters; If the light reflection optimization parameters show that the interference effect exceeds the preset threshold, the iterative optimization algorithm is used to adjust the disturbed texture distribution data, recalculate the texture depth, direction and spacing, and obtain the optimized texture distribution data; By optimizing the texture distribution data and using high-precision laser etching equipment to perform texture processing, micro-textures with controlled disturbances are generated, and the processed texture data is obtained; Obtain surface gloss parameters from processed texture data, use spectral analysis technology to detect the gloss effect, determine whether it meets the natural visual effect standard, and obtain gloss effect evaluation data; According to the gloss effect evaluation data, the feedback control algorithm is used to adjust the laser parameter database, generate updated texture design parameters, and obtain the final texture processing parameters; Based on the final texture processing parameters, batch processing is performed using an automated laser etching system to generate platinum relief textures that meet the gloss effect and natural visual effects, and obtain batch processing texture data.

2. The method for brightening platinum relief microstructures based on laser etching according to claim 1, characterized in that: The method uses a preset laser parameter database to obtain initial texture design parameters from the surface characteristics of platinum, uses a pulsed laser to generate regular textures, and obtains preliminary texture distribution data, including: Initial texture design parameters matching the surface characteristics of platinum are obtained from a preset laser parameter database to obtain surface texture parameters. If the surface texture parameters meet a preset threshold, the surface characteristics of platinum are determined through material surface analysis to obtain surface characteristic data. A pulsed laser is used to perform laser pulse control, generate regular textures, and obtain a preliminary texture distribution. The initial grain distribution is evaluated by grain regularity measurement. If the regularity measurement value reaches the preset standard, the grain distribution data is determined. represents the regularity measure of the texture, Indicates the number of texture areas, Indicates the number of sampling points in each area, Indicates the texture depth of the kth point in the i-th region, represents the average depth of the i-th region; The convolutional neural network algorithm is used to extract the features of the texture distribution data to obtain the texture feature set. Based on the texture feature set, the laser processing accuracy analysis is performed to determine whether the texture distribution data meets the processing requirements and obtain the processing quality data. Indicates the machining accuracy error, Indicates the number of measurement points, Indicates the actual processing depth, Indicates the target processing depth; If the processing quality data meets the preset accuracy standard, the final texture distribution data will be output.

3. The method for brightening platinum relief micro-textures based on laser etching according to claim 1, characterized in that: The method of generating a controlled micro-perturbation sequence based on the preliminary texture distribution data by using a random perturbation algorithm and adjusting parameters for texture depth, direction, and spacing to obtain the perturbation texture distribution data includes: The random perturbation algorithm is used to process the preliminary grain distribution data, generate a small perturbation sequence, adjust the grain depth parameters, grain direction parameters and grain spacing parameters, and obtain the perturbed grain distribution data; The disturbed texture distribution data is analyzed by Fourier transform, and the texture frequency characteristics are extracted to obtain the texture frequency distribution data. If the spectrum peak of the texture frequency distribution data meets the preset threshold, the texture frequency distribution data is smoothed by the mean filtering method to obtain the smoothed frequency distribution data; Based on the smoothed frequency distribution data, the principal component analysis algorithm is used to extract the main eigenvectors of the texture distribution to obtain the texture feature vector set. If the eigenvalue variance ratio of the texture feature vector set reaches the preset standard, the texture feature vector set is converted back to the spatial domain through inverse Fourier transform to obtain the optimized texture distribution data; According to the optimized texture distribution data, the cluster analysis method is used to divide the texture distribution into regions to obtain the texture regional distribution data. If the intra-cluster variance of the texture regional distribution data is lower than the preset threshold, the final texture distribution data is determined.

4. The method for brightening platinum relief microstructures based on laser etching according to claim 1, characterized in that: The method of obtaining light reflection characteristic parameters from the disturbance texture distribution data, calculating the reflected light intensity distribution and interference effect using an optical simulation model, determining whether there is dispersion or glare, and obtaining light reflection optimization parameters includes: Extract light reflection characteristic parameters from the disturbance texture distribution data, calculate the initial reflected light intensity distribution using a preset ray tracing algorithm, and obtain the initial light intensity distribution data; According to the initial light intensity distribution data, the interference effect is calculated using an optical simulation model, and the interference fringe characteristics are extracted to obtain the interference effect data. If the fringe density of the interference effect data exceeds the preset threshold, the interference effect data is analyzed using Fourier transform to extract the frequency characteristics and obtain the interference frequency distribution data. represents the two-dimensional Fourier transform result, The spatial function representing the interference effect, and represent the frequency variables in the x and y directions respectively, and i is the imaginary unit; According to the interference frequency distribution data, determine whether there is a dispersion phenomenon. If the peak width of the frequency distribution exceeds the preset threshold, it is determined that there is a dispersion phenomenon and the dispersion judgment result is obtained. According to the dispersion judgment result, the interference frequency distribution data is smoothed by the mean filtering method to obtain the smoothed frequency distribution data. represents the smoothed frequency distribution function, M represents the filter window size, represents the mean filter kernel function, represents the original frequency distribution function, k=(M-1) / 2; Extracting glare features from the smoothed frequency distribution data; if the intensity value of the glare features exceeds a preset threshold, it is determined that glare exists, and a glare judgment result is obtained; represents the characteristic intensity of glare, represents the signal analysis interval, represents the second derivative of the smoothed frequency distribution, Indicates the glare judgment result, Indicates the preset glare threshold. When the glare characteristic intensity When the value is greater than the threshold, it is determined that there is glare and output 1, otherwise it outputs 0; According to the dispersion judgment results and the glare judgment results, the light reflection characteristic parameters are adjusted, and the reflected light intensity distribution is updated using an iterative optimization algorithm to obtain the light reflection optimization parameters.

5. The method for brightening platinum relief micro-textures based on laser etching according to claim 1, characterized in that: If the light reflection optimization parameter shows that the interference effect exceeds the preset threshold, an iterative optimization algorithm is used to adjust the disturbed texture distribution data, recalculate the texture depth, direction and spacing, and obtain optimized texture distribution data, including: If the interference effect of the optimized texture distribution data still exceeds the preset threshold, the adjusted reflected light intensity distribution is calculated using a ray tracing algorithm to obtain reflected light intensity distribution data; represents the reflected light intensity distribution, represents the surface reflectivity, represents the incident light intensity, represents the angle of incidence; According to the reflected light intensity distribution data, the frequency characteristics of the interference effect are extracted by Fourier transform to obtain the interference frequency distribution data. If the peak width of the interference frequency distribution data exceeds the preset threshold, the Gaussian filter method is used to smooth the interference frequency distribution data to obtain the smoothed frequency distribution data. According to the smoothed frequency distribution data, the periodic characteristics of the texture distribution are extracted to obtain the texture periodic distribution data. represents the texture period distribution function, represents the periodic eigenvalue, represents the smoothed frequency distribution function; If the periodic characteristic value of the texture periodic distribution data deviates from the preset range, the gradient descent algorithm is used to adjust the texture depth and spacing parameters to obtain the adjusted texture parameter data, and the texture distribution data is recalculated to obtain the final optimized texture distribution data. represents the final optimized texture distribution function, represents the texture depth distribution function, represents the texture spacing distribution function, and is the weight coefficient.

6. The method for brightening platinum relief microstructures based on laser etching according to claim 1, characterized in that: The method optimizes the texture distribution data, uses high-precision laser etching equipment to perform texture processing, generates microscopic textures with controlled disturbances, and obtains processed texture data, including: Preprocess the texture distribution data, adjust the texture parameters, and obtain preprocessed texture data. Perform initial texture processing using high-precision laser etching technology to generate preliminary texture structure data. If the disturbance characteristics of the preliminary texture structure data deviate from the preset threshold, use a convolutional neural network algorithm to extract features from the texture structure data to obtain texture disturbance feature data. According to the texture disturbance feature data, the laser etching parameters are adjusted through the gradient descent algorithm to optimize the texture depth and spacing to obtain the optimized etching parameter data. The texture structure is then processed again through high-precision laser etching technology to generate optimized texture structure data. According to the optimized texture structure data, the spatial distribution characteristics of the texture are extracted to obtain the texture distribution characteristic data. If the periodicity of the texture distribution characteristic data deviates from the preset range, the texture distribution characteristic data is smoothed by the Gaussian filtering method to obtain the final texture data.

7. The method for brightening platinum relief micro-textures based on laser etching according to claim 1, characterized in that: The surface glossiness parameters are obtained from the processed texture data, and the glossiness effect is detected by using spectral analysis technology to determine whether it meets the natural visual effect standard, thereby obtaining glossiness effect evaluation data, including: Surface gloss parameters are extracted from the processed texture data, and spectral analysis technology is used to generate gloss distribution characteristic data. The data is compared with the preset natural visual standard. If the gloss distribution characteristic deviates from the preset threshold, gloss deviation data is generated. D represents the gloss deviation value, Indicates the actual gloss value, Indicates the standard gloss value, K indicates the number of measurement points; For the gloss deviation data, the Gaussian filtering method is used to smooth the gloss distribution characteristic data to obtain smooth gloss data. represents the smoothed glossiness function, represents the original glossiness function, represents the smoothing coefficient, Represents the convolution operation; Extract gloss uniformity features from smooth gloss data, use principal component analysis algorithm to generate gloss uniformity feature data, and judge by preset uniformity threshold. If the uniformity feature is lower than the threshold, generate gloss adjustment parameter data. Represents the gloss adjustment parameter, represents the adjustment coefficient, represents the target uniformity threshold, Represents the current uniformity eigenvalue; Based on the gloss adjustment parameter data, the gradient descent algorithm is used to optimize the gloss distribution characteristics to obtain the optimized gloss distribution data. The final gloss effect characteristics are extracted from the optimized gloss distribution data to generate gloss effect evaluation data. Indicates the final gloss effect score, represents the optimized gloss parameter, represents the target gloss parameter, represents the weight coefficient, Indicates the number of evaluation indicators.

8. The method for brightening platinum relief micro-textures based on laser etching according to claim 1, characterized in that: The laser parameter database is adjusted using a feedback control algorithm based on the gloss effect evaluation data to generate updated texture design parameters and obtain final texture processing parameters, including: Extract the deviation distribution characteristics from the gloss effect evaluation data, calculate the deviation mean and variance, and obtain the deviation distribution parameters. Based on the deviation distribution parameters, a feedback control algorithm is used to generate the laser parameter adjustment coefficient to obtain the adjustment coefficient data. represents the adjustment coefficient, represents the control gain, represents the mean deviation, represents the deviation variance, t represents the time step; Extract the laser parameter update value from the adjustment coefficient data, use the matrix operation method to update the laser parameter database, and obtain the updated laser parameter set. represents the updated laser parameters, represents the original laser parameters, represents the adjustment coefficient, Represents the parameter matrix dimension; According to the updated laser parameter set, the texture design parameter adjustment vector is generated, and the texture parameter change is calculated using the linear mapping method to obtain the texture design parameter set. Indicates the texture design parameters, represents the mapping matrix, represents the updated laser parameters, represents the change vector; Extract processing control features from the texture design parameter set. If the processing control features exceed the preset threshold, the boundary constraint method is used to adjust the parameter range to obtain the restricted texture parameter set. represents the restricted texture parameters, Indicates the texture design parameters, Indicates the upper limit of texture design parameters, Indicates the lower limit of texture design parameters; According to the limited texture parameter set, the parameter fusion method is used to generate the final texture processing parameters to obtain the processing parameter data. The processing stability characteristics are extracted from the processing parameter data, and the principal component analysis algorithm is used to generate the stability index to obtain the final processing parameter set. represents the stability index, Represents the final processing parameters, represents the i-th parameter feature, Represents the total number of features.

Images