Shoe style design method based on digitized three-dimensional model of shoe tree

Abstract

The application relates to a leather shoe style design method based on a shoe last digital three-dimensional model. The method comprises the following steps: acquiring a shoe last digital three-dimensional model, and loading a contour module structure model library; extracting first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model, and determining the area boundary of each contour module structure model; acquiring each contour module structure model and second key feature points of each contour module structure model, and registering the shoe last digital three-dimensional model and each contour module structure model based on the first key feature points of the shoe last digital three-dimensional model and the second key feature points of each contour module structure model; and adjusting the functional area parameters of a functional area three-dimensional model in each contour module structure model based on the shoe last digital three-dimensional model and each contour module structure model, and generating a leather shoe style three-dimensional model. The method can realize efficient and accurate shoe style design through digital technology.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of leather shoe style design, and particularly relates to a leather shoe style design method based on a digital three-dimensional model of a shoe tree. BACKGROUND

[0002] Traditional shoe design and manufacturing processes have long relied on manual experience and two-dimensional drawings, which have many limitations. In the shoe tree making and shoe type design links, designers mainly rely on experience judgment and repeated trial production, which not only leads to a long design cycle and high trial and error cost, but also often results in inaccurate data conversion between shoe trees and shoe types, thereby increasing the adjustment cost in the production process and causing resource waste.

[0003] With the shoe design undergoing a transition from traditional experience-driven to data-driven, digital technology has become a key force to improve the efficiency and effect of shoe design. However, in the prior art, the matching degree of the digital three-dimensional model of the shoe tree and the digital three-dimensional model of the leather shoe style is low, which often makes the design model inconsistent with the actual product, thereby increasing the adjustment cost in the production process and resource waste. SUMMARY

[0004] Therefore, it is necessary to provide a leather shoe style design method based on a digital three-dimensional model of a shoe tree to improve the efficiency and accuracy of leather shoe style design.

[0005] In a first aspect, the application provides a leather shoe style design method based on a digital three-dimensional model of a shoe tree, comprising:

[0006] obtaining a digital three-dimensional model of a shoe tree and loading a contour module structure model library;

[0007] extracting first key feature points of the digital three-dimensional model of the shoe tree corresponding to each contour module structure model, and determining the region boundaries of each contour module structure model;

[0008] obtaining each contour module structure model and second key feature points of each contour module structure model from the contour module structure model library, and registering the digital three-dimensional model of the shoe tree and each contour module structure model based on the first key feature points of the digital three-dimensional model of the shoe tree corresponding to each contour module structure model and the second key feature points of each contour module structure model;

[0009] adjusting the function region parameters of the function region three-dimensional model in each contour module structure model based on the digital three-dimensional model of the shoe tree and each contour module structure model, and generating a leather shoe style three-dimensional model based on each contour module structure model after adjusting the function region parameters.

[0010] In one of the embodiments, the profile module structure model library includes a toe profile module structure model library, a body profile module structure model library, a heel profile module structure model library and a sole profile module structure model library, the digitized three-dimensional model of the last is obtained, and the profile module structure model library is loaded, including:

[0011] The point cloud data of the last is obtained by a three-dimensional scanning device;

[0012] The digitized three-dimensional model of the last is constructed based on the point cloud data of the last;

[0013] The preset toe profile module structure model library, the preset body profile module structure model library, the preset heel profile module structure model library and the preset sole profile module structure model library are loaded.

[0014] In one of the embodiments, the profile module structure model includes a toe profile module structure model stored in the toe profile module structure model library, a body profile module structure model stored in the body profile module structure model library, a heel profile module structure model stored in the heel profile module structure model library and a sole profile module structure model stored in the sole profile module structure model library, the first key feature points include first toe key feature points corresponding to the toe profile module structure model, first body key feature points corresponding to the body profile module structure model, first heel key feature points corresponding to the heel profile module structure model and first sole key feature points corresponding to the sole profile module structure model, the first key feature points corresponding to each profile module structure model of the digitized three-dimensional model of the last are extracted, the area boundaries of each profile module structure model are determined, including:

[0015] Based on the digitized three-dimensional model of the last, the first toe key feature points, the first body key feature points, the first heel key feature points and the first sole key feature points corresponding to each profile module structure model are recognized and extracted;

[0016] According to the extracted first key feature points, the closed curve is drawn in combination with the digitized three-dimensional model of the last;

[0017] Based on the closed curve, the area boundaries of each profile module structure model are divided.

[0018] In one of the embodiments, the second key feature points include a second toe key feature point corresponding to the first toe key feature point, a second instep key feature point corresponding to the first instep key feature point, a second heel key feature point corresponding to the first heel key feature point, and a second sole key feature point corresponding to the first sole key feature point, the contour module structure models and the second key feature points of the contour module structure models are obtained from the contour module structure model library, and the last digitized three-dimensional model and the contour module structure models are registered based on the first key feature points of the last digitized three-dimensional model corresponding to the contour module structure models and the second key feature points of the contour module structure models, including:

[0019] The contour module structure models are called from the contour module structure model library, the second toe key feature point corresponding to the first toe key feature point, the second instep key feature point corresponding to the first instep key feature point, the second heel key feature point corresponding to the first heel key feature point, and the second sole key feature point corresponding to the first sole key feature point of the contour module structure models are loaded;

[0020] The first toe key feature point and the second toe key feature point are registered;

[0021] The first instep key feature point and the second instep key feature point are registered;

[0022] The first heel key feature point and the second heel key feature point are registered;

[0023] The first sole key feature point and the second sole key feature point are registered.

[0024] In one of the embodiments, the functional area three-dimensional models include a protection functional area model in the toe contour module structure model, a comfort functional area model in the instep contour module structure model, a structural support functional area model in the heel contour module structure model, and an insulation functional area model in the sole contour module structure model, the functional area parameters include protection functional area parameters, comfort functional area parameters, structural support functional area parameters, and insulation functional area parameters, the functional area parameters of the functional area three-dimensional models in the contour module structure models are adjusted based on the last digitized three-dimensional model and the contour module structure models, and the leather shoe style three-dimensional model is generated based on the contour module structure models after the functional area parameters are adjusted, including:

[0025] The protection functional area parameters of the protection functional area model in the toe contour module structure model are adjusted based on the first toe key feature point of the last digitized three-dimensional model and the second toe key feature point of the toe contour module structure model;

[0026] Based on the first shoe body key feature points of the digitalized three-dimensional model of the shoe tree and the second shoe body key feature points of the shoe body contour modular structure model, the comfort function area parameters of the comfort function area model in the shoe body contour modular structure model are adjusted;

[0027] Based on the first shoe heel key feature points of the digitalized three-dimensional model of the shoe tree and the second shoe heel key feature points of the shoe heel contour modular structure model, the structure support function area parameters of the structure support function area model in the shoe heel contour modular structure model are adjusted;

[0028] Based on the first shoe sole key feature points of the digitalized three-dimensional model of the shoe tree and the second shoe sole key feature points of the shoe sole contour modular structure model, the insulation function area parameters of the insulation function area model in the shoe sole contour modular structure model are adjusted;

[0029] The leather shoe style three-dimensional model is generated according to the shoe head contour modular structure model after the protection function area parameters are adjusted, the shoe body contour modular structure model after the comfort function area parameters are adjusted, the shoe heel contour modular structure model after the structure support function area parameters are adjusted, and the shoe sole contour modular structure model after the insulation function area parameters are adjusted.

[0030] In one of the embodiments, the leather shoe style design method based on the digitalized three-dimensional model of the shoe tree further comprises:

[0031] Based on the leather shoe style three-dimensional model and the digitalized three-dimensional model of the shoe tree, the protection function score and the insulation function score of the leather shoe style three-dimensional model are generated.

[0032] In one of the embodiments, the expression of the protection function score and the insulation function score is:

[0033] ;

[0034] In the expression, and are the protection function score and the insulation function score respectively, is a step function, is the volume of the maximum deformation space of the leather shoe style three-dimensional model overlapping with the digitalized three-dimensional model of the shoe tree, and are the anti-deformation coefficient and the anti-puncture coefficient respectively, is the simulated impact deformation of the leather shoe style three-dimensional model, is the preset maximum impact deformation, is the simulated anti-puncture force of the shoe head contour modular structure model in the leather shoe style three-dimensional model, is the preset rated anti-puncture force, is the simulated leakage current of the leather shoe style three-dimensional model, is the preset maximum leakage current, and respectively are insulation thickness coefficient and coverage area coefficient, is preset standard average insulation thickness, is actual average insulation thickness of the three-dimensional model of the leather shoe style, is actual insulation area coverage area of the three-dimensional model of the leather shoe style, is preset standard insulation area coverage area.

[0035] In a second aspect, the present application further provides a leather shoe style design system based on a last digital three-dimensional model, comprising:

[0036] a data initialization module configured to acquire the last digital three-dimensional model and load a contour module structure model library;

[0037] a region boundary identification module configured to extract first key feature points of the last digital three-dimensional model corresponding to each contour module structure model, and determine region boundaries of each contour module structure model;

[0038] a three-dimensional model registration module configured to acquire each contour module structure model and second key feature points of each contour module structure model from the contour module structure model library, and register the last digital three-dimensional model and each contour module structure model based on the first key feature points of the last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model;

[0039] a design result generation module configured to adjust function region parameters of function region three-dimensional models in each contour module structure model based on the last digital three-dimensional model and each contour module structure model, and generate a three-dimensional model of a leather shoe style based on each contour module structure model after adjusting the function region parameters.

[0040] In a third aspect, the present application further provides a computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements steps of the method according to any one of the first aspect of the present application when executing the computer program.

[0041] In a fourth aspect, the present application further provides a computer readable storage medium, which stores a computer program, and the computer program implements steps of the method according to any one of the first aspect of the present application when executed by a processor.

[0042] The shoe style design method based on the digital three-dimensional model of the shoe tree can realize accurate registration of the digital three-dimensional model and dynamic adjustment of the contour module structure by extracting key feature points of the shoe tree and the contour module and performing spatial registration, so that the efficiency of the shoe design process can be systematically improved, the product development cycle can be greatly shortened, and the accuracy and efficiency of the shoe style design can be improved. Through the key feature point-based region boundary determination, the fitting accuracy of the shoe type and the foot structure can be effectively improved, the product comfort can be improved, and the reliability of the shoe style design can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the related art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0044] Figure 1 A flowchart of a shoe style design method based on a digital three-dimensional model of a shoe tree provided by an embodiment of the present application is shown in the figure.

[0045] Figure 2 A structure diagram of a shoe style design system based on a digital three-dimensional model of a shoe tree provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0047] Illustratively, the shoe style design method based on a digital three-dimensional model of a shoe tree provided by the present application can be used for the style design of safety shoes, especially for the style design of electrically insulating shoes.

[0048] In an exemplary embodiment of the present application, as shown in the figure, Figure 1 a shoe style design method based on a digital three-dimensional model of a shoe tree is provided. The present embodiment takes the method applied to a shoe style design terminal as an example. It should be understood that the method can also be applied to a shoe style design server, and can also be applied to a shoe style design system including a shoe style design terminal and a shoe style design server, and can be realized through the interaction of the shoe style design terminal and the shoe style design server. In the present embodiment, the method can include the following steps:

[0049] In step S101, a last digital three-dimensional model is acquired, and a profile module structure model library is loaded.

[0050] Specifically, the leather shoe style design terminal can acquire last point cloud data through a three-dimensional scanning device, and construct a last digital three-dimensional model based on the last point cloud data. The leather shoe style design terminal can load a preset profile module structure model library.

[0051] Optionally, the profile module structure model library can include, but is not limited to, a toe profile module structure model library, a body profile module structure model library, a heel profile module structure model library, and a sole profile module structure model library.

[0052] In step S102, first key feature points of the last digital three-dimensional model corresponding to each profile module structure model are extracted, and the region boundaries of each profile module structure model are determined.

[0053] Specifically, the leather shoe style design terminal can extract first key feature points of the last digital three-dimensional model corresponding to each profile module structure model. The leather shoe style design terminal can determine the region boundaries of each profile module structure model corresponding to the last digital three-dimensional model based on the last digital three-dimensional model and in combination with the first key feature points. The first key feature points can be used to represent the spatial position characteristics and morphological adaptation characteristics of the last digital three-dimensional model and the preset profile module structure model.

[0054] Optionally, the profile module structure model can include, but is not limited to, a toe profile module structure model, a body profile module structure model, a heel profile module structure model, and a sole profile module structure model.

[0055] Optionally, the first key feature points can include, but are not limited to, first toe key feature points, first body key feature points, first heel key feature points, and first sole key feature points.

[0056] Further, the first toe key feature points can include, but are not limited to, first last front end feature points, first toe width feature points, first toe curvature feature points, and first toe rear tolerance feature points. The first body key feature points can include, but are not limited to, first waist pit site feature points, first metatarsophalangeal site feature points, first body curve feature points, and first body girth feature points. The first heel key feature points can include, but are not limited to, first heel heel feature points, first heel height feature points, first heel inclination feature points, and first rear stirrup height feature points. The first sole key feature points can include, but are not limited to, first sole central axis feature points, first sole thickness feature points, and first sole boundary feature points.

[0057] Illustratively, the first toe key feature point can be a spatial reference point based on the digital three-dimensional model of the last corresponding to the toe contour module structure model, and the first toe key feature point can be used to accurately match the toe module with the front end shape of the last. The first last front end feature point can be the most protruding point of the front end of the last, the first toe width feature point can be the point of the widest part of the toe area of the last, the first toe curvature feature point can be the key curvature change point of the toe surface of the last, and the first toe rear tolerance feature point can be the transition point of the junction area between the rear end of the toe of the last and the body. The first body key feature point can be a spatial reference point based on the digital three-dimensional model of the last corresponding to the body contour module structure model, and can be used to ensure the ergonomic fit and structural stability of the body module, wherein the first waist position feature point can be a key point of the waist (arch) area of the foot of the last, the first metatarsophalangeal position feature point can be a point of the metatarsophalangeal joint (toe and sole connection) area of the foot of the last, the first body curve feature point can be a key curve inflection point of the side or front of the body of the last, and the first body girth feature point can be a circumference measurement point at different heights of the body of the last. The first heel key feature point can be a spatial reference point based on the digital three-dimensional model of the last corresponding to the heel contour module structure model, and can be used to ensure the support performance and gait adaptability of the heel module, wherein the first heel heel feature point can be a point of the last heel end, which is a reference point of the rear end boundary of the heel module, the first heel height feature point can be a vertical height measurement point of the top and bottom of the heel of the last, the first heel inclination feature point can be a key point of the inclined surface of the side of the heel of the last, and the first rear toe height feature point can be a height difference measurement point of the heel part of the last relative to the front end of the sole. The first sole key feature point can be a spatial reference point based on the digital three-dimensional model of the last corresponding to the sole contour module structure model, and can be used to ensure the protection performance and adaptability of the sole, wherein the first sole central axis feature point can be a key point of the central line of the sole of the last, the first sole thickness feature point can be a thickness measurement point of different areas of the sole of the last (such as the forefoot, arch, and heel), and the first sole boundary feature point can be a key inflection point of the edge of the sole of the last, which can be used to define the coverage range of the sole module.

[0058] In step S103, each contour module structure model and the second key feature point of each contour module structure model are obtained from the contour module structure model library, and the digital three-dimensional model of the last and each contour module structure model are registered based on the first key feature point of the digital three-dimensional model of the last corresponding to each contour module structure model and the second key feature point of each contour module structure model.

[0059] Specifically, the leather shoe style design terminal can acquire each profile module structure model and the second key feature point of each profile module structure model from the profile module structure model library. The leather shoe style design terminal can register the last digital three-dimensional model and the corresponding each profile module structure model based on the first key feature point of the last digital three-dimensional model corresponding to each profile module structure model and the second key feature point of each profile module structure model.

[0060] Optionally, the leather shoe style design terminal can register the last digital three-dimensional model and the toe profile module structure model based on the first toe key feature point of the last digital three-dimensional model corresponding to the toe profile module structure model and the second toe key feature point of the toe profile module structure model.

[0061] Optionally, the leather shoe style design terminal can register the last digital three-dimensional model and the body profile module structure model based on the first body key feature point of the last digital three-dimensional model corresponding to the body profile module structure model and the second body key feature point of the body profile module structure model.

[0062] Optionally, the leather shoe style design terminal can register the last digital three-dimensional model and the heel profile module structure model based on the first heel key feature point of the last digital three-dimensional model corresponding to the heel profile module structure model and the second heel key feature point of the heel profile module structure model.

[0063] Optionally, the leather shoe style design terminal can register the last digital three-dimensional model and the sole profile module structure model based on the first sole key feature point of the last digital three-dimensional model corresponding to the sole profile module structure model and the second sole key feature point of the sole profile module structure model.

[0064] Further, the second toe key feature point can but not limited to include a second last front end feature point corresponding to the first last front end feature point, a second toe width feature point corresponding to the first toe width feature point, a second toe curvature feature point corresponding to the first toe curvature feature point, and a second toe back allowance feature point corresponding to the first toe back allowance feature point. The second instep key feature point can but not limited to include a second instep position feature point corresponding to the first instep position feature point, a second metatarsal-phalangeal position feature point corresponding to the first metatarsal-phalangeal position feature point, a second instep curve feature point corresponding to the first instep curve feature point, and a second instep girth feature point corresponding to the first instep girth feature point. The second heel key feature point can but not limited to include a second heel counter feature point corresponding to the first heel counter feature point, a second heel height feature point corresponding to the first heel height feature point, a second heel inclination feature point corresponding to the first heel inclination feature point, and a second heel back height feature point corresponding to the first heel back height feature point. The second sole key feature point can but not limited to include a second sole mid-axis feature point corresponding to the first sole mid-axis feature point, a second sole thickness feature point corresponding to the first sole thickness feature point, and a second sole boundary feature point corresponding to the first sole boundary feature point.

[0065] In step S104, based on the last digital three-dimensional model and the contour module structure model, the functional area parameter of the functional area three-dimensional model in the contour module structure model is adjusted, and the leather shoe style three-dimensional model is generated based on the contour module structure model after adjusting the functional area parameter.

[0066] In detail, the leather shoe style design terminal can adjust the functional area parameter of the functional area three-dimensional model in the contour module structure model based on the last digital three-dimensional model and the contour module structure model, and generate the leather shoe style three-dimensional model based on the contour module structure model after adjusting the functional area parameter.

[0067] Optionally, the functional area three-dimensional model can but not limited to include a protection functional area model in the toe contour module structure model, a comfort functional area model in the instep contour module structure model, a structural support functional area model in the heel contour module structure model, and an insulation functional area model in the sole contour module structure model, and the functional area parameter can but not limited to include a protection functional area parameter, a comfort functional area parameter, a structural support functional area parameter, and an insulation functional area parameter.

[0068] In the shoe style design method based on the digital three-dimensional model of the shoe tree, the key feature points of the digital three-dimensional model of the shoe tree and the contour module structure model are matched. Since the contour module structure model can be directly called, the repeated modeling operation in the shoe style design process can be reduced, and the workload of the initial design link can be simplified. In addition, by matching the first key feature point of the shoe tree model with the second key feature point of the contour module model, the fitting accuracy of the digital three-dimensional model of the shoe tree and the contour module structure model can be improved, the positioning deviation can be reduced, and the fitting degree and the fit degree of the contour module and the shoe tree can be improved. By adjusting the three-dimensional model parameters of the functional area based on the digital three-dimensional model of the shoe tree and the contour module structure model, the functional fitting requirements of different shoe trees can be met, and the functional area and the shoe tree model can be highly matched. In addition, by flexibly adjusting the functional area parameters, diversified shoe design ideas can be further realized, diversified adjustment can be performed without reconstructing the overall model, and thus a plurality of different styles of leather shoes can be derived, and the overall design efficiency can be improved.

[0069] In an optional embodiment of the present application, the contour module structure model library can include a toe contour module structure model library, a body contour module structure model library, a heel contour module structure model library, and a sole contour module structure model library. The digital three-dimensional model of the shoe tree is obtained, and the contour module structure model library is loaded, which can include:

[0070] Specifically, the shoe style design terminal can obtain shoe tree point cloud data by a three-dimensional scanning device.

[0071] Specifically, the shoe style design terminal can construct a digital three-dimensional model of a shoe tree based on shoe tree point cloud data.

[0072] Specifically, the shoe style design terminal can load a preset toe contour module structure model library, a preset body contour module structure model library, a preset heel contour module structure model library, and a preset sole contour module structure model library.

[0073] In an optional embodiment of the present application, the profile module structure model can include a toe profile module structure model stored in a toe profile module structure model library, a body profile module structure model stored in a body profile module structure model library, a heel profile module structure model stored in a heel profile module structure model library, and a sole profile module structure model stored in a sole profile module structure model library, the first key feature points can include first toe key feature points corresponding to the toe profile module structure model, first body key feature points corresponding to the body profile module structure model, first heel key feature points corresponding to the heel profile module structure model, and first sole key feature points corresponding to the sole profile module structure model, the first key feature points of the last digital three-dimensional model corresponding to each profile module structure model are extracted, and the area boundary of each profile module structure model is determined, which can include:

[0074] Specifically, the leather shoe style design terminal can identify and extract the first toe key feature points, the first body key feature points, the first heel key feature points, and the first sole key feature points corresponding to each profile module structure model based on the last digital three-dimensional model.

[0075] Optionally, the first toe key feature points can include a first last front end feature point, a first toe width feature point, a first toe curvature feature point, and a first toe rear tolerance feature point, the first body key feature points can include a first waist pit site feature point, a first metatarsophalangeal site feature point, a first body curve feature point, and a first body girth feature point, the first heel key feature points can include a first heel heel feature point, a first heel height feature point, a first heel inclination feature point, and a first rear toe height feature point, and the first sole key feature points can include a first sole axis feature point, a first sole thickness feature point, and a first sole boundary feature point.

[0076] Specifically, the leather shoe style design terminal can draw a closed curve according to the extracted first key feature points in combination with the last digital three-dimensional model.

[0077] Specifically, the leather shoe style design terminal can divide the area boundary of each profile module structure model based on the closed curve.

[0078] In an optional embodiment of the present application, the second key feature points can include second toe key feature points corresponding to the first toe key feature points, second instep key feature points corresponding to the first instep key feature points, second heel key feature points corresponding to the first heel key feature points, and second sole key feature points corresponding to the first sole key feature points, the second key feature points of each of the profile module structure models are obtained from the profile module structure model library, and the registration of the last digital three-dimensional model and each of the profile module structure models based on the first key feature points of the last digital three-dimensional model corresponding to each of the profile module structure models and the second key feature points of each of the profile module structure models can include:

[0079] Specifically, the leather shoe style design terminal can obtain each of the profile module structure models from the profile module structure model library, load the second key feature points of each of the profile module structure models corresponding to the first toe key feature points, the first instep key feature points, the first heel key feature points, and the first sole key feature points, and register the first key feature points and the second key feature points.

[0080] Optionally, the second toe key feature points can include second last front end feature points, second toe width feature points, second toe curvature feature points, and first toe rear tolerance feature points, the second instep key feature points can include second instep part feature points, second metatarsophalangeal part feature points, second instep curve feature points, and second instep girth feature points, the second heel key feature points can include second heel heel feature points, second heel height feature points, second heel inclination feature points, and second rear spur height feature points, and the second sole key feature points can include second sole axis feature points, second sole thickness feature points, and second sole boundary feature points.

[0081] Specifically, the leather shoe style design terminal can register the first key feature points and the second key feature points, the first instep key feature points and the second instep key feature points, the first heel key feature points and the second heel key feature points, and the first sole key feature points and the second sole key feature points, so as to realize the registration of the last digital three-dimensional model and each of the profile module structure models.

[0082] In an optional embodiment of the present application, the functional area three-dimensional model can include a protection functional area model in the toe contour module structure model, a comfort functional area model in the body contour module structure model, a structural support functional area model in the heel contour module structure model, and an insulation functional area model in the sole contour module structure model, the functional area parameters can include protection functional area parameters, comfort functional area parameters, structural support functional area parameters, and insulation functional area parameters, based on the last digital three-dimensional model and the contour module structure models, adjusting the functional area parameters of the functional area three-dimensional model in each contour module structure model, and generating the leather shoe style three-dimensional model based on the contour module structure models after adjusting the functional area parameters can include:

[0083] Specifically, the leather shoe style design terminal can adjust the protection functional area parameters of the protection functional area model in the toe contour module structure model based on the first toe key feature points of the last digital three-dimensional model and the second toe key feature points of the toe contour module structure model.

[0084] Specifically, the leather shoe style design terminal can adjust the comfort functional area parameters of the comfort functional area model in the body contour module structure model based on the first body key feature points of the last digital three-dimensional model and the second body key feature points of the body contour module structure model.

[0085] Specifically, the leather shoe style design terminal can adjust the structural support functional area parameters of the structural support functional area model in the heel contour module structure model based on the first heel key feature points of the last digital three-dimensional model and the second heel key feature points of the heel contour module structure model.

[0086] Specifically, the leather shoe style design terminal can adjust the insulation functional area parameters of the insulation functional area model in the sole contour module structure model based on the first sole key feature points of the last digital three-dimensional model and the second sole key feature points of the sole contour module structure model.

[0087] Specifically, the leather shoe style design terminal can generate the leather shoe style three-dimensional model according to the toe contour module structure model after adjusting the protection functional area parameters, the body contour module structure model after adjusting the comfort functional area parameters, the heel contour module structure model after adjusting the structural support functional area parameters, and the sole contour module structure model after adjusting the insulation functional area parameters.

[0088] In an optional embodiment of the present application, the leather shoe style design method based on the last digital three-dimensional model can further include:

[0089] Specifically, the leather shoe style design terminal can generate the protection function score and the insulation function score of the leather shoe style three-dimensional model based on the leather shoe style three-dimensional model and the last digitized three-dimensional model.

[0090] In an optional embodiment of the present application, the expression of the protection function score and the insulation function score can be:

[0091] ;

[0092] In the formula, and are the protection function score and the insulation function score respectively, is a step function, is the volume of the maximum deformation space of the leather shoe style three-dimensional model overlapping with the last digitized three-dimensional model, and are the anti-deformation coefficient and the anti-puncture coefficient respectively, is the simulated impact deformation of the leather shoe style three-dimensional model, is the preset maximum impact deformation, is the simulated anti-puncture force of the toe cap contour module structure model in the leather shoe style three-dimensional model, is the preset rated anti-puncture force, is the simulated leakage current of the leather shoe style three-dimensional model, is the preset maximum leakage current, and are the insulation thickness coefficient and the coverage area coefficient respectively, is the preset standard average insulation thickness, is the actual average insulation thickness of the leather shoe style three-dimensional model, is the actual insulation area coverage area of the leather shoe style three-dimensional model, is the preset standard insulation area coverage area.

[0093] Optionally, the simulated impact deformation can be the simulated impact deformation of the toe cap contour module structure model. The maximum deformation space can be the maximum deformation space of the toe cap contour module structure model.

[0094] Illustratively, when the input is lower than zero, the function output of the step function can be zero, and when the input is not less than zero, the function output of the step function can be one.

[0095] It should be understood that although the steps in the flowcharts involved in the embodiments described above are shown in sequence according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not strictly limited in sequence, and the steps can be executed in other sequences. Moreover, at least some of the steps in the flowcharts involved in the embodiments described above can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution sequence of the steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0096] Based on the same inventive concept, the embodiments of the present application also provide a shoe last digital three-dimensional model-based leather shoe style design system for implementing the shoe last digital three-dimensional model-based leather shoe style design method described above. The problem-solving implementation scheme provided by the system is similar to the implementation scheme described in the above method, so the specific limitations in one or more shoe last digital three-dimensional model-based leather shoe style design system embodiments provided below can refer to the limitations of the shoe last digital three-dimensional model-based leather shoe style design method described above, and will not be repeated here.

[0097] In an exemplary embodiment, as shown in Figure 2 A shoe last digital three-dimensional model-based leather shoe style design system 200 is provided, comprising:

[0098] In a second aspect, the present application also provides a shoe last digital three-dimensional model-based leather shoe style design system, comprising:

[0099] The data initialization module 201 can be used to obtain a shoe last digital three-dimensional model and load a contour module structure model library.

[0100] The region boundary identification module 202 can be used to extract first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model, and determine the region boundaries of each contour module structure model.

[0101] The three-dimensional model registration module 203 can be used to obtain each contour module structure model and second key feature points of each contour module structure model from the contour module structure model library, and register the shoe last digital three-dimensional model and each contour module structure model based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model.

[0102] The design result generation module 204 can be configured to adjust the function area parameters of the function area three-dimensional model in each contour module structure model based on the last digital three-dimensional model and each contour module structure model, and generate a leather shoe style three-dimensional model based on each contour module structure model after adjusting the function area parameters.

[0103] In an optional embodiment of the present application, the data initialization module 201 can be further configured to:

[0104] The last point cloud data is acquired by a three-dimensional scanning device.

[0105] The last digital three-dimensional model is constructed based on the last point cloud data.

[0106] A preset toe contour module structure model library, a preset body contour module structure model library, a preset heel contour module structure model library and a preset sole contour module structure model library are loaded.

[0107] In an optional embodiment of the present application, the region boundary identification module 202 can be further configured to:

[0108] Based on the last digital three-dimensional model, first toe key feature points, first body key feature points, first heel key feature points and first sole key feature points corresponding to each contour module structure model are identified and extracted.

[0109] According to the extracted first key feature points, a closed curve is drawn in combination with the last digital three-dimensional model.

[0110] Based on the closed curve, region boundaries of each contour module structure model are divided.

[0111] In an optional embodiment of the present application, the three-dimensional model registration module 203 can be further configured to:

[0112] Each contour module structure model is called from each contour module structure model library, and second toe key feature points corresponding to the first toe key feature points, second body key feature points corresponding to the first body key feature points, second heel key feature points corresponding to the first heel key feature points and second sole key feature points corresponding to the first sole key feature points of each contour module structure model are loaded.

[0113] The first toe key feature points and the second toe key feature points are registered.

[0114] The first body key feature points and the second body key feature points are registered.

[0115] The first heel key feature points and the second heel key feature points are registered.

[0116] registering the first shoe sole key feature points and the second shoe sole key feature points.

[0117] In an optional embodiment of the present application, the design result generation module 204 can also be configured to:

[0118] adjust the protection function area parameters of the protection function area model in the toe cap profile module structure model based on the first toe cap key feature points of the last digitized three-dimensional model and the second toe cap key feature points of the toe cap profile module structure model.

[0119] adjust the comfort function area parameters of the comfort function area model in the body profile module structure model based on the first body key feature points of the last digitized three-dimensional model and the second body key feature points of the body profile module structure model.

[0120] adjust the structure support function area parameters of the structure support function area model in the heel profile module structure model based on the first heel key feature points of the last digitized three-dimensional model and the second heel key feature points of the heel profile module structure model.

[0121] adjust the insulation function area parameters of the insulation function area model in the sole profile module structure model based on the first shoe sole key feature points of the last digitized three-dimensional model and the second shoe sole key feature points of the sole profile module structure model.

[0122] generate the leather shoe style three-dimensional model according to the toe cap profile module structure model after adjusting the protection function area parameters, the body profile module structure model after adjusting the comfort function area parameters, the heel profile module structure model after adjusting the structure support function area parameters, and the sole profile module structure model after adjusting the insulation function area parameters.

[0123] In an optional embodiment of the present application, the leather shoe style design system 200 based on the last digitized three-dimensional model can also be configured to:

[0124] generate the protection function score and the insulation function score of the leather shoe style three-dimensional model based on the leather shoe style three-dimensional model and the last digitized three-dimensional model.

[0125] In an embodiment, a computer device is provided, comprising a memory and a processor, the memory storing a computer program, and the processor implementing the steps of a leather shoe style design method based on a last digitized three-dimensional model as described above when executing the computer program.

[0126] In an embodiment, a computer readable storage medium is provided, storing a computer program, and the computer program being executed by a processor to implement the steps of the above method embodiments.

[0127] For the device embodiment, since it basically corresponds to the method embodiment, the relevant part can be seen from the part of the method embodiment. The device embodiment described above is only schematic, wherein the components shown as separate components can or can not be physically separate, and the components shown as a unit can or can not be a physical unit, i.e., can be located in one place, or can be distributed to multiple network units. Part or all of the modules can be selected according to actual needs to achieve the purpose of the present disclosure. Those skilled in the art can understand and implement it without creative labor.

[0128] The above-described embodiments only express several implementation manners of the present application, which are described in detail, but cannot be understood as a limitation on the patent scope of the application. It should be pointed out that, for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A shoe style design method based on a digitized three-dimensional model of a shoe last, characterized in that, The method comprises: acquiring a shoe last digital three-dimensional model and loading a contour module structure model library; extracting first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model, and determining the area boundaries of each contour module structure model; acquiring each contour module structure model and second key feature points of each contour module structure model from the contour module structure model library, and registering the shoe last digital three-dimensional model and each contour module structure model based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model; adjusting the functional area parameters of the functional area three-dimensional model in each contour module structure model based on the shoe last digital three-dimensional model and each contour module structure model, and generating a leather shoe style three-dimensional model based on each contour module structure model after adjusting the functional area parameters; based on the leather shoe style three-dimensional model and the shoe last digital three-dimensional model, generating a protective function score and an insulation function score of the leather shoe style three-dimensional model; wherein the expressions of the protective function score and the insulation function score are: ； In the formula, and respectively are the protective function score and the insulation function score, is a step function, is the volume of the overlap space of the maximum deformation space of the toe cap profile module structure model in the leather shoe style three-dimensional model and the digitized three-dimensional shoe last model, and respectively are the anti-deformation coefficient and the anti-puncture coefficient, is the simulated impact deformation of the toe cap profile module structure model in the leather shoe style three-dimensional model, is the preset maximum impact deformation, is the simulated anti-puncture force of the toe cap profile module structure model in the leather shoe style three-dimensional model, is the preset rated anti-puncture force, is the simulated leakage current of the leather shoe style three-dimensional model, is the preset maximum leakage current, and respectively are the insulation thickness coefficient and the coverage area coefficient, is the preset standard average insulation thickness, is the actual average insulation thickness of the leather shoe style three-dimensional model, is the actual insulation area coverage area of the leather shoe style three-dimensional model, is the preset standard insulation area coverage area.

2. The method of claim 1, wherein, The contour module structure model library comprises a toe contour module structure model library, a body contour module structure model library, a heel contour module structure model library, and a sole contour module structure model library, and the acquisition of the shoe last digital three-dimensional model and the loading of the contour module structure model library comprise: acquiring shoe last point cloud data by a three-dimensional scanning device; constructing the shoe last digital three-dimensional model based on the shoe last point cloud data; loading the preset toe contour module structure model library, the preset body contour module structure model library, the preset heel contour module structure model library, and the preset sole contour module structure model library.

3. The method of claim 2, wherein, The contour module structure model comprises the toe contour module structure model stored in the toe contour module structure model library, the body contour module structure model stored in the body contour module structure model library, the heel contour module structure model stored in the heel contour module structure model library, and the sole contour module structure model stored in the sole contour module structure model library, and the first key feature points comprise first toe key feature points corresponding to the toe contour module structure model, first body key feature points corresponding to the body contour module structure model, first heel key feature points corresponding to the heel contour module structure model, and first sole key feature points corresponding to the sole contour module structure model, and the extraction of the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the determination of the area boundaries of each contour module structure model comprise: based on the shoe last digital three-dimensional model, identifying and extracting the first toe key feature points, the first body key feature points, the first heel key feature points, and the first sole key feature points corresponding to each contour module structure model; According to the extracted first key feature points, a closed curve is drawn in combination with the shoe last digital three-dimensional model; The region boundary of each contour module structure model is divided based on the closed curve.

4. The method of claim 3, wherein, The second key feature points include a second toe key feature point corresponding to the first toe key feature point, a second body key feature point corresponding to the first body key feature point, a second heel key feature point corresponding to the first heel key feature point, and a second sole key feature point corresponding to the first sole key feature point. The second key feature points of each contour module structure model are obtained from the contour module structure model library, and the shoe last digital three-dimensional model and each contour module structure model are registered based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model, including: The second key feature points of each contour module structure model are obtained from the contour module structure model library, and the shoe last digital three-dimensional model and each contour module structure model are registered based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model, including: The second key feature points of each contour module structure model are obtained from the contour module structure model library, and the shoe last digital three-dimensional model and each contour module structure model are registered based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model, including: The second key feature points of each contour module structure model are obtained from the contour module structure model library, and the shoe last digital three-dimensional model and each contour module structure model are registered based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model, including: The second key feature points of each contour module structure model are obtained from the contour module structure model library, and the shoe last digital three-dimensional model and each contour module structure model are registered based on the first key feature points of the shoe last digital three-dimensional model corresponding to each contour module structure model and the second key feature points of each contour module structure model, including: The functional region three-dimensional model includes a protection functional region model in the toe contour module structure model, a comfort functional region model in the body contour module structure model, a structural support functional region model in the heel contour module structure model, and an insulation functional region model in the sole contour module structure model. The functional region parameters include protection functional region parameters, comfort functional region parameters, structural support functional region parameters, and insulation functional region parameters. Based on the shoe last digital three-dimensional model and each contour module structure model, the functional region parameters of the functional region three-dimensional model in each contour module structure model are adjusted, and the leather shoe style three-dimensional model is generated based on the contour module structure model after the adjustment of the functional region parameters, including:

5. The method of claim 4, wherein, The protection functional region parameters of the protection functional region model in the toe contour module structure model are adjusted based on the first toe key feature point of the shoe last digital three-dimensional model and the second toe key feature point of the toe contour module structure model; The comfort functional region parameters of the comfort functional region model in the body contour module structure model are adjusted based on the first body key feature point of the shoe last digital three-dimensional model and the second body key feature point of the body contour module structure model; The structural support functional region parameters of the structural support functional region model in the heel contour module structure model are adjusted based on the first heel key feature point of the shoe last digital three-dimensional model and the second heel key feature point of the heel contour module structure model; and The insulation functional region parameters of the insulation functional region model in the sole contour module structure model are adjusted based on the first sole key feature point of the shoe last digital three-dimensional model and the second sole key feature point of the sole contour module structure model. adjusting a structure support function area parameter of a structure support function area model in the heel contour module structure model based on the first heel key feature point of the last digitized three-dimensional model and the second heel key feature point of the heel contour module structure model; adjusting an insulation function area parameter of an insulation function area model in the sole contour module structure model based on the first sole key feature point of the last digitized three-dimensional model and the second sole key feature point of the sole contour module structure model; generating the leather shoe style three-dimensional model according to the toe contour module structure model after adjusting the protection function area parameter, the body contour module structure model after adjusting the comfort function area parameter, the heel contour module structure model after adjusting the structure support function area parameter, and the sole contour module structure model after adjusting the insulation function area parameter.

6. A shoe style design system based on a digitized three-dimensional model of a shoe last, characterized by, The system comprises various functional modules required for implementing the method of any one of claims 1 to 5. 7.A computer device, comprising a memory and a processor, wherein the memory stores a computer program, and the computer device is configured to perform the method according to any one of claims 1-6 when the computer program is executed by the processor. The processor implements the method of any one of claims 1 to 5 when executing the computer program.

8. A computer readable storage medium having stored thereon a computer program, characterized in that, The computer program implements the method of any one of claims 1 to 5 when executed by the processor. The computer program implements the method of any one of claims 1 to 5 when executed by the processor.

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