CN113223154A - Personalized spectacle frame three-dimensional model generation method and personalized spectacle frame manufacturing method - Google Patents
Personalized spectacle frame three-dimensional model generation method and personalized spectacle frame manufacturing method Download PDFInfo
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- CN113223154A CN113223154A CN202110566267.7A CN202110566267A CN113223154A CN 113223154 A CN113223154 A CN 113223154A CN 202110566267 A CN202110566267 A CN 202110566267A CN 113223154 A CN113223154 A CN 113223154A
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Abstract
The invention provides a method for generating a three-dimensional model of a personalized spectacle frame and a method for manufacturing the personalized spectacle frame, which comprise the following steps: establishing a three-dimensional model of the head and the face of a user; establishing a standard spectacle frame three-dimensional model; trying a standard glasses frame three-dimensional model on a user head and face three-dimensional model in 3D modeling software; adjusting the parameters of the standard three-dimensional model of the spectacle frame to match the three-dimensional model of the head of the user to form a personalized spectacle frame three-dimensional model; and printing the personalized spectacle frame three-dimensional model through 3D additive printing. According to the invention, the three-dimensional model parameters of the glasses frame are adjusted by adopting a virtual try-on mode in the 3D modeling software, so that a personalized glasses frame three-dimensional model highly matched with the face of the user is generated, and a personalized glasses frame conforming to the face characteristics of the user is printed by the 3D printer, so that the wearing comfort of the glasses frame can be improved.
Description
Technical Field
The invention relates to the technical field of three-dimensional modeling and 3D printing, in particular to a personalized spectacle frame three-dimensional model generation method and a personalized spectacle frame manufacturing method.
Background
The wearing comfort of the spectacle frame is mainly influenced by the matching degree of the spectacle frame and the face shape. Because the face shapes of people are different, thousands of people have thousands of faces, and the spectacle frames are mostly designed according to the standard face shapes, when an individual chooses to purchase, the spectacle frame matched with the face shape of the individual is difficult to select, and the wearing comfort degree is influenced.
At present, the matching of the spectacle frame and the face of a user is mainly realized by adjusting the finished spectacle by a mirror-wearing engineer, after the user selects the spectacle frame style and completes the manufacturing and assembling of the lenses, the finished spectacle frame is manually finely adjusted by the mirror-wearing engineer according to the actual wearing effect of the user, so that the matched face of the user is matched, and the wearing comfort is improved. Since the adjustment is performed after the finished spectacle frame is manufactured, the adjustment range is limited, the actual face of the user is difficult to be matched practically, and the spectacle frame adjustment for a special face is difficult to be in place. Moreover, the adjustment of the finished spectacle frame mainly depends on the experience of the optician, the user feels subjective to the comfort level, a standard procedure is difficult to form, and finally the wearing comfort level of the finished spectacle frame is difficult to ensure.
Therefore, how to guarantee the wearing comfort of the spectacle frame product on the premise of thousands of people becomes a technical problem to be solved urgently.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method for generating a three-dimensional model of a personalized spectacle frame and a method for manufacturing a personalized spectacle frame.
Therefore, according to a first aspect, the embodiment of the present invention discloses a method for generating a three-dimensional model of a personalized spectacle frame, comprising the following steps:
establishing a three-dimensional model of the head and the face of a user;
establishing a standard spectacle frame three-dimensional model;
trying a standard glasses frame three-dimensional model on a user head and face three-dimensional model in 3D modeling software;
and adjusting the parameters of the standard spectacle frame three-dimensional model to match the head three-dimensional model of the user to form a personalized spectacle frame three-dimensional model.
Optionally, the establishing of the three-dimensional model of the head and the face of the user specifically includes:
projecting structured light toward a user's head and face;
acquiring a structured light image passing through the head and face of a user;
and generating a three-dimensional model of the head and face of the user according to the structured light image.
Optionally, the adjusting the parameters of the standard three-dimensional model of the glasses frame to match the three-dimensional model of the head and face of the user, and forming the personalized glasses frame three-dimensional model includes:
and in 3D modeling software, the actual effect of the three-dimensional model of the standard spectacle frame worn on the head and face three-dimensional model of the user is visually observed, and then parameters of the three-dimensional model of the standard spectacle frame are adjusted to form a personalized spectacle frame three-dimensional model.
Optionally, the adjusting the parameters of the standard three-dimensional model of the glasses frame to match the three-dimensional model of the head and face of the user, and forming the personalized glasses frame three-dimensional model includes:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software, and setting a user head face three-dimensional model as a rigid body;
performing collision detection operation on the standard spectacle frame three-dimensional model and the user head and face three-dimensional model by using a dynamics module in 3D modeling software;
and adjusting the parameters of the standard spectacle frame three-dimensional model according to the collision detection operation result, so that the adjusted standard spectacle frame three-dimensional model can be correctly worn on the head and face three-dimensional model of the user without overlapping and penetrating out or exceeding the defined deformation, and further forming a personalized spectacle frame three-dimensional model.
Optionally, the adjusting the parameters of the standard three-dimensional model of the glasses frame to match the three-dimensional model of the head and face of the user, and forming the personalized glasses frame three-dimensional model includes:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software;
configuring a skeleton joint model of a three-dimensional model of the head and face of a user in 3D modeling software, and setting the skin material and elasticity of the head and face of the user;
carrying out stress analysis on the wearing contact positions of the standard spectacle frame three-dimensional model and the user head and face three-dimensional model in 3D modeling software;
and adjusting the parameters of the standard three-dimensional model of the spectacle frame according to the stress analysis result, so that the stress of the wearing contact position of the adjusted three-dimensional model of the spectacle frame and the three-dimensional model of the head and face of the user is smaller than a preset stress value, and further forming a personalized three-dimensional model of the spectacle frame.
Optionally, the adjusted three-dimensional model parameters of the standard glasses frame include: the spectacle frame comprises a spectacle frame size, a nose bridge size, spectacle leg sizes, a spectacle frame height, a frame face outer width and a spectacle frame inner width.
Optionally, the standard three-dimensional model of the glasses frame is a standard three-dimensional model of the glasses frame style selected by the user.
According to a second aspect, an embodiment of the present invention discloses a method for manufacturing a personalized spectacle frame, wherein after a personalized spectacle frame three-dimensional model is formed by the method for generating a personalized spectacle frame three-dimensional model according to any one of the first aspect, the personalized spectacle frame three-dimensional model is printed by 3D additive printing.
According to a third aspect, embodiments of the present invention disclose a personalized spectacle frame manufactured by the method for manufacturing a personalized spectacle frame according to the second aspect.
The invention has the beneficial effects that:
according to the embodiment of the invention, the parameters of the three-dimensional model of the glasses frame are adjusted by adopting a virtual try-on mode in the 3D modeling software, so that the personalized glasses frame three-dimensional model which is highly matched with the face of the user is generated, and the personalized glasses frame which is in accordance with the face feature of the user is printed out through the 3D printer, so that the wearing comfort of the glasses frame can be improved. Particularly, a three-dimensional model of the glasses frame which is more in line with the face shape of the user can be adjusted by assisting collision detection operation of 3D modeling software; stress analysis is carried out on the wearing contact position of the user head, the face and the glasses frame in the model space by using 3D modeling software, the stress experience of the user wearing the glasses frame actually can be simulated, and discomfort caused by overlarge stress of the wearing contact position is avoided.
Drawings
Fig. 1 is a flowchart of a method for generating a personalized spectacle frame three-dimensional model according to an embodiment of the present invention.
Fig. 2 is a first schematic diagram of parameters of a three-dimensional model of a standard spectacle frame adjusted according to an embodiment of the present invention.
Fig. 3 is a schematic diagram of a three-dimensional model parameter of a standard spectacle frame adjusted according to an embodiment of the present invention.
Detailed Description
In order to more clearly and completely explain the technical scheme of the invention, the invention is further explained with reference to the attached drawings.
Example one
Referring to fig. 1, the present invention provides a method for generating a three-dimensional model of a personalized spectacle frame, comprising the following steps:
s1: establishing a three-dimensional model of the head and the face of a user;
s2: establishing a standard spectacle frame three-dimensional model;
s3: trying a standard glasses frame three-dimensional model on a user head and face three-dimensional model in 3D modeling software;
s4: and adjusting the parameters of the standard three-dimensional model of the spectacle frame to match the three-dimensional model of the head of the user to form a personalized three-dimensional model of the spectacle frame.
According to the embodiment of the invention, the parameters of the three-dimensional model of the glasses frame are adjusted by adopting a virtual try-on mode in the 3D modeling software, so that the personalized glasses frame three-dimensional model highly matched with the face of the user is generated, and the wearing comfort of the glasses frame can be improved.
In an alternative embodiment, the step S1 of establishing the three-dimensional model of the head and face of the user specifically includes:
s101: projecting structured light toward a user's head and face;
s102: acquiring a structured light image passing through the head and face of a user;
s103: and generating a three-dimensional model of the head and face of the user according to the structured light image.
It should be noted that, there are various embodiments in the prior art for obtaining the three-dimensional model of the user's head and face by using the structured light, for example, a structured light module is arranged on a mobile phone or a tablet computer, and the three-dimensional model of the user's head and face can be directly obtained; a three-dimensional scanning device based on structured light can also be used for acquiring a three-dimensional model of the head and the face of the user.
In an alternative embodiment, the standard eyeglass frame three-dimensional model is a standard eyeglass frame three-dimensional model of the eyeglass frame style selected by the user.
It should be noted that, the user may select a pre-designed and printed eyeglass frame style in the storefront, or select an eyeglass frame style on line, where each eyeglass frame style corresponds to a standard eyeglass frame three-dimensional model. The three-dimensional model of the head and the face of the user is uploaded to the cloud end and shared to a background 3D designer, the background designer obtains the 3D model of the three-dimensional model of the head and the face of the user and then matches with the selected three-dimensional model of the standard glasses frame, virtual try-on can be carried out by using 3D modeling software, and parameters of the three-dimensional model of the standard glasses frame are adjusted.
Referring to fig. 2 and 3, in an alternative embodiment, the adjusted three-dimensional model parameters of the standard eyeglass frame include: the spectacle frame comprises a spectacle frame size, a nose bridge size, spectacle leg sizes, a spectacle frame height, a frame face outer width and a spectacle frame inner width. The parameters are defined as follows:
the size of the mirror frame is as follows: the distance between the inner sides of the two sides of the lens ring at the middle point of the plane vertical line of the lens frame;
nose bridge size: the widest distance on the horizontal line where the bridge of the nose of the spectacle frame is located;
temple size: a straightened distance from the center of the frame hinge to the end of the temple;
the height of the mirror frame is as follows: the widest distance between the outer sides of the upper edge and the lower edge of the mirror frame;
the outer width of the frame face: the distance between the visible areas on the left side and the right side of the spectacle frame, namely the distance between the spectacle frame and the junction of the two spectacle legs;
the inner width of the mirror frame is as follows: the inboard distance of two mirror legs of 60mm department behind the picture frame plane, here are mirror leg and human temple contact point just in time, if here tension or too loose can influence the comfort level of wearing, and the width also can change along with the adjustment of mirror leg in the picture frame simultaneously.
In an alternative embodiment, the adjusting the standard eyeglass frame three-dimensional model parameters to match the user head three-dimensional model of step S4, and the forming the personalized eyeglass frame three-dimensional model comprises:
and in 3D modeling software, the actual effect of the three-dimensional model of the standard spectacle frame worn on the head and face three-dimensional model of the user is visually observed, and then parameters of the three-dimensional model of the standard spectacle frame are adjusted to form a personalized spectacle frame three-dimensional model.
It should be noted that, in this embodiment, the three-dimensional model parameters of the spectacle frame are mainly primarily adjusted by a background designer, and the background designer can perform virtual try-on by using 3D modeling software according to his professional experience to adjust the three-dimensional model parameters of the standard spectacle frame.
In an alternative embodiment, the adjusting the standard eyeglass frame three-dimensional model parameters to match the user head three-dimensional model of step S4, and the forming the personalized eyeglass frame three-dimensional model comprises:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software, and setting a user head face three-dimensional model as a rigid body;
performing collision detection operation on the standard spectacle frame three-dimensional model and the user head and face three-dimensional model by using a dynamics module in 3D modeling software;
and adjusting the parameters of the standard spectacle frame three-dimensional model according to the collision detection operation result, so that the adjusted standard spectacle frame three-dimensional model can be correctly worn on the head and face three-dimensional model of the user without overlapping and penetrating out or exceeding the defined deformation, and further forming a personalized spectacle frame three-dimensional model.
In this embodiment, the material of the glasses frame is set by using a material science module in the 3D modeling software, and then the collision detection operation is performed by using a power module, so that it is ensured that the adjusted glasses frame does not overlap with the head and face of the user in the module space. When the spectacle frame is designed by using soft materials, the spectacle frame can deform in the wearing process, and the three-dimensional model parameters of the standard spectacle frame need to be adjusted at the same time, so that the deformation does not exceed the limit. The three-dimensional model of the glasses frame which is more in line with the face shape of the user can be adjusted by assisting the collision detection operation of the 3D modeling software.
In an alternative embodiment, the adjusting the standard eyeglass frame three-dimensional model parameters to match the user head three-dimensional model of step S4, and the forming the personalized eyeglass frame three-dimensional model comprises:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software;
configuring a skeleton joint model of a three-dimensional model of the head and face of a user in 3D modeling software, and setting the skin material and elasticity of the head and face of the user;
carrying out stress analysis on the wearing contact positions of the standard spectacle frame three-dimensional model and the user head and face three-dimensional model in 3D modeling software;
and adjusting the parameters of the standard three-dimensional model of the spectacle frame according to the stress analysis result, so that the stress of the wearing contact position of the adjusted three-dimensional model of the spectacle frame and the three-dimensional model of the head and face of the user is smaller than a preset stress value, and further forming a personalized three-dimensional model of the spectacle frame.
In this embodiment, the bone joint model of the three-dimensional model of the user's head and face can be configured through the bone joint module of the 3D modeling software, and the skin material and elasticity can be set. Stress analysis is carried out on the wearing contact position of the user head and face and the glasses frame in the model space by using 3D modeling software, the stress experience of the user actually wearing the glasses frame can be simulated, and discomfort caused by overlarge stress of the wearing contact position is avoided.
In some embodiments, the 3D modeling software is 3D max software.
Example two
The invention provides an embodiment of a personalized spectacle frame manufacturing method, wherein after a personalized spectacle frame three-dimensional model is formed by the embodiment of the personalized spectacle frame three-dimensional model generating method in any one of the embodiments, the personalized spectacle frame three-dimensional model is printed out through 3D additive printing.
In this embodiment, a personalized spectacle frame conforming to the facial features of the user can be printed out by a 3D printer.
EXAMPLE III
The invention provides an embodiment of a personalized spectacle frame, which is manufactured by the manufacturing method of the personalized spectacle frame.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. These should also be construed as the scope of the present invention, and they should not affect the effect of the invention and the utility of the patent. And are neither required nor exhaustive of all embodiments. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (9)
1. A method for generating a three-dimensional model of a personalized spectacle frame is characterized by comprising the following steps:
establishing a three-dimensional model of the head and the face of a user;
establishing a standard spectacle frame three-dimensional model;
trying a standard glasses frame three-dimensional model on a user head and face three-dimensional model in 3D modeling software;
and adjusting the parameters of the standard three-dimensional model of the spectacle frame to match the three-dimensional model of the head of the user to form a personalized spectacle frame three-dimensional model.
2. The method for generating the personalized spectacle frame three-dimensional model according to claim 1, wherein the establishing of the user head and face three-dimensional model specifically comprises:
projecting structured light toward a user's head and face;
acquiring a structured light image passing through the head and face of a user;
and generating a three-dimensional model of the head and face of the user according to the structured light image.
3. The method as claimed in claim 1, wherein said adjusting the parameters of the standard three-dimensional model of the eyeglass frame to match the three-dimensional model of the user's head and face, and forming the personalized three-dimensional model of the eyeglass frame comprises:
and in 3D modeling software, the actual effect of the three-dimensional model of the standard spectacle frame worn on the head and face three-dimensional model of the user is visually observed, and then parameters of the three-dimensional model of the standard spectacle frame are adjusted to form a personalized spectacle frame three-dimensional model.
4. The method as claimed in claim 1, wherein said adjusting the parameters of the standard three-dimensional model of the eyeglass frame to match the three-dimensional model of the user's head and face, and forming the personalized three-dimensional model of the eyeglass frame comprises:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software, and setting a user head and face three-dimensional model as a rigid body;
performing collision detection operation on the standard spectacle frame three-dimensional model and the user head and face three-dimensional model by using a dynamics module in 3D modeling software;
and adjusting the parameters of the standard three-dimensional model of the spectacle frame according to the collision detection operation result, so that the adjusted three-dimensional model of the standard spectacle frame can be correctly worn on the three-dimensional model of the head and the face of the user without overlapping and penetrating out or exceeding the limited deformation, and further forming the personalized three-dimensional model of the spectacle frame.
5. The method as claimed in claim 1, wherein said adjusting the parameters of the standard three-dimensional model of the eyeglass frame to match the three-dimensional model of the user's head and face, and forming the personalized three-dimensional model of the eyeglass frame comprises:
setting the material and elasticity of a standard spectacle frame three-dimensional model in 3D modeling software;
configuring a skeleton joint model of a three-dimensional model of the head and face of a user in 3D modeling software, and setting the skin material and elasticity of the head and face of the user;
carrying out stress analysis on the wearing contact positions of the standard spectacle frame three-dimensional model and the user head and face three-dimensional model in 3D modeling software;
and adjusting the parameters of the standard spectacle frame three-dimensional model according to the stress analysis result, so that the stress of the wearing contact position of the adjusted standard spectacle frame three-dimensional model and the user head and face three-dimensional model is smaller than a preset stress value, and further forming a personalized spectacle frame three-dimensional model.
6. A method for generating a three-dimensional model of a frame for personalized glasses according to claim 1, wherein the adjusted parameters of the three-dimensional model of the standard frame for glasses include: the spectacle frame comprises a spectacle frame size, a nose bridge size, spectacle leg sizes, a spectacle frame height, a frame face outer width and a spectacle frame inner width.
7. The method as claimed in claim 1, wherein the standard three-dimensional model of the eyeglass frame is a standard three-dimensional model of the eyeglass frame selected by the user.
8. A method for manufacturing a personalized spectacle frame, characterized in that after a personalized spectacle frame three-dimensional model is formed by a personalized spectacle frame three-dimensional model generation method according to any one of claims 1 to 7, the personalized spectacle frame three-dimensional model is printed out by 3D additive printing.
9. A personalized spectacle frame, characterized in that it is manufactured by a method for manufacturing a personalized spectacle frame according to claim 8.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116228763A (en) * | 2023-05-08 | 2023-06-06 | 成都睿瞳科技有限责任公司 | Image processing method and system for eyeglass printing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116228763A (en) * | 2023-05-08 | 2023-06-06 | 成都睿瞳科技有限责任公司 | Image processing method and system for eyeglass printing |
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Application publication date: 20210806 |