WO2018174342A1 - Customized shoe manufacturing method and system using three-dimensional foot scanning - Google Patents

Abstract

A customized shoe manufacturing system using three-dimensional scanning comprises: a 3D scan processing module (P11) capable of performing data communication with a 3D image generation device arranged in at least one position; an information processing module (P13) which can perform data communication with the 3D scan processing module (P11) and which processes information related to foot 3D data transmitted from the 3D scan processing module (P11); and a 3D design module (P14) for generating a shoe by a 3D printing method from the foot 3D data transmitted from the information processing module (P13).

Description

Customized shoe manufacturing method and system using three-dimensional foot scanning

The present invention relates to a method and system for manufacturing customized shoes, and specifically, a method of manufacturing a customized shoe capable of designing a 3D shoe suitable for each foot by providing a worn state by scanning the foot with 3D foot scanning technology. And to the system.

Shoes are worn to protect the foot of the human body, and may be classified according to various uses such as sports shoes, shoes for suits or suits, safety shoes for work, hiking boots or the like. In general, shoes are located in the out-sole that is in contact with the ground, mid-soles that support the foot and improve the fit of the shoe by placing it on the upper part of the sole, and directly supporting the foot by the inner bottom of the shoe. It may include an insole, an upper that covers the top of the shoe and the instep and maintains the overall appearance design and shape. For the manufacture of shoes, a last, also known as a 'shoe bone' or a 'burn', is required as the skeleton of the shoe, and the shoes are generally manufactured in accordance with the standard last (KSG 3405). Difficulties have been raised. Specifically, it is difficult to manufacture customized shoes considering individual foot shapes because it is manufactured in a size of 5mm based on the most standardized foot.

Patent Publication No. 10-2014-0142201 discloses a custom shoe manufacturing system using a 3D printer and a 3D scanner, and Patent Registration No. 10-1601688 discloses a custom shoe using a 3D printer, a manufacturing apparatus and a method thereof. . This well-known customized shoe manufacturing technology scans a foot with a 3D scanner and produces the last by simply calculating the data such as the length and the circumference of the foot from the scanned foot image. There is a problem that can not provide a variety of shoes.

The present invention is to solve the problems of the prior art has the following object.

The purpose of the present invention is to apply a 3D foot scanner optimized for a personalized production platform to quickly and accurately scan the order of the foot of the orderer, allowing the customer to select the desired design while providing a virtual wearing state using augmented reality It is to provide a customized shoe manufacturing method and system that allows to quickly and easily select the desired design.

According to a preferred embodiment of the present invention, a customized shoe manufacturing system by three-dimensional scanning includes a 3D scan processing module capable of data communication with the 3D image generating apparatus disposed in at least one position; An information processing module capable of data communication with the 3D scan processing module P11 and processing information related to the foot 3D data transmitted from the 3D scan processing module; And a 3D design module for generating shoes in a 3D print manner from the foot 3D data transmitted from the information processing module P13.

The system according to the present invention builds a database of three-dimensional foot data of a plurality of customers to be used in the prevention and treatment of foot disease, and can be used as a basis for selecting the optimal model for each body type. In this way, the feature is detected from the three-dimensional foot model according to a unique algorithm to manage the DB so that suitable data can be quickly retrieved. The shoe and foot scan model generated by the virtual fitting system is applied to select the desired shoe type from the shoe type list. Afterwards, the shoe design supported by the shoe model generated by the virtual fitting system among the selected shoe types can be recommended by the customer, and the virtual ignition simulation can be confirmed to provide shoes suitable for the customer's taste. By building customized shape data for each customer, the customer's personal feature data is accurately analyzed, and the data is periodically measured to respond to changes or modifications of individual foot types.

1 illustrates an embodiment of a custom shoe system according to the present invention.

2 illustrates an embodiment of a process of processing foot scan data applied to a customized shoe system according to the present invention.

3 illustrates an embodiment of a process in which 3D foot scanning data applied to a customized shoe system according to the present invention and shoes to be manufactured are matched.

Figure 4 shows an embodiment of a 3D scanner applied to the shoe manufacturing system according to the present invention.

5 illustrates an embodiment of a process of generating 3D foot scan data applied to a system according to the present invention.

6 illustrates an embodiment of a process of determining a three-dimensional image applied to the manufacturing method of 3D shoes according to the present invention.

7 illustrates an embodiment of a process of determining a model of the 3D shoes applied to the manufacturing method of the 3D shoes in accordance with the present invention.

8 illustrates an embodiment of a process of matching a plurality of images applied to a manufacturing method according to the present invention.

9 illustrates another embodiment of a scanner applied to a manufacturing system or a manufacturing method according to the present invention.

10 illustrates an embodiment of a matching process applied to a manufacturing system or a manufacturing method according to the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments set forth in the accompanying drawings, but the embodiments are provided for clarity of understanding and the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, and thus are not repeatedly described unless necessary for understanding of the invention, and well-known components are briefly described or omitted. It should not be understood to be excluded from the embodiment of.

1 illustrates an embodiment of a custom shoe system according to the present invention.

Referring to FIG. 1, a customized shoe manufacturing system using three-dimensional scanning includes a 3D scan processing module P11 capable of data communication with a 3D image generating apparatus disposed at at least one location; An information processing module P13 capable of data communication with the 3D scan processing module P11 and processing information related to the foot 3D data transmitted from the 3D scan processing module P11; And a 3D design module P14 for generating a shoe in a 3D print manner from the foot 3D data transmitted from the information processing module P13.

 The system according to the present invention is a franchise method or a 3D scanner installed in a store or a specific place where a customer visits the merchant to scan the foot of the customer and selects and orders shoes according to the customer's taste using a terminal installed in the merchant The foot of the customer can be scanned and the order can be applied to a web method using a customer terminal connected to a service providing server by an application. Such a service method is just one example, and merchants may order using a customer terminal or order using a standalone kiosk.

Customized shoe service system according to the present invention comprises a service providing server including an information processing module (P13) connected via the Internet (IN) or a similar communication method; A 3D scan processing module P11 for processing foot 3D scan data generated from the merchant scanner P121, the kiosk scanner P122, or the portable scanner P123; A 3D design module P14 for designing 3D shoes based on information transmitted from the 3D scan processing module P13; And a 3D manufacturing module P15 including a 3D print or similar manufacturing apparatus for manufacturing 3D shoes according to the design data transmitted from the 3D design module P14.

The communication network includes existing communication networks such as wired / wireless Internet network, WiFi, WCDMA, LTE, etc., and the 3D scan processing module P11 and the information processing module P13 are for example, a portable electronic device (P16) and data of a customer. Communication is possible. This allows the portable electronic device P16 and the service providing server to be connected to each other to select a shoe design and mutual data communication by possible applications such as virtual wear.

3D foot scanning is a merchant scanner (P121) that is installed in the merchant or store; Free-standing kiosk scanner P122 that can be installed at any place; And the portable scanner P123.

The merchant scanner P121 may be applied to a franchise service system in such a manner that a 3D scanner for 3D scanning of the foot of a customer is connected to a PC such as a desktop or a notebook on which an application is mounted. When the customer visits the merchant and scans the foot 3D and proposes a recommended design on the PC, the augmented reality is applied to check the virtual ignition state, and the desired design is selected and ordered. The customer's order, along with the foot data, is sent to the headquarters to create customized lasts, uppers and outsoles, to manufacture the shoes, and the finished shoes can be delivered to the customer through a franchise. The customer wears the shoes at the merchant, tests them, and asks for AS if necessary.

The kiosk scanner P122 may include a structure independently installed in a booth and the like, and a 3D scanner may be disposed at a lower end of a receiving module such as a housing, and a console may be installed at the top to directly operate by a customer. The portable 3D scanner P123 may have a structure in which only the foot of the customer may be scanned to transmit scan data to the 3D scan processing module P11 of the service providing server. The kiosk scanner P122 or the portable 3D scanner P123 may be a structure suitable for web services. When the customer runs the application on the portable electronic device (P16), various menus are displayed on the portable electronic device (P16), and when a menu such as custom shoes is selected, the kiosk scanner (P122) or the portable scanner (P123) is installed. Guide the client to scan the foot. You can then follow the instructions in the application to select a design that suits your taste, select uppers, outsoles, and accessories, set details, and recommend and purchase the best shoe model through virtual test fittings. .

2 illustrates an embodiment of a process of processing foot scan data applied to a customized shoe system according to the present invention.

Referring to FIG. 2, a customized information module 21 for detecting a customer's request and searching for information according to the customer's manufacture of shoes according to each customer's request; A scan information feature analysis module 22 for analyzing features from at least one 3D image of the foot obtained from the 3D scanner; A fitting test module 23 for combining a preformed 3D virtual shoe image and a foot 3D scan image and providing the same to a user; And feature matching module 24 for searching for virtual shoes suitable for the foot 3D scan image.

An operating application P161 for the manufacture of 3D shoes may be installed in a portable electronic device such as a customer's smartphone, tablet PC or similar electronic device. Through the operation application P161, the customer can access the installed individual information processing unit P131 of the service providing server and perform necessary data communication. The customer can provide the necessary information to the individual information processing unit P131 and can be sent to the customized information module 21 together with the 3D scan image. The personalization information module 21 may transmit the provided information to the property matching module 24. The characteristic matching module 24 may access the big-data server 25 to search for a virtual shoe suitable for the provided information or determine whether the augmented reality device 26 is suitable for 3D scan image and customer information. . The determination result may be transmitted to the personalized information module 21, and may be a final test in the fitting test unit 23. The results of the fitting test can then be sent to the customer's operational application for selection by the user.

The operation application P161 and the service providing server may be operated in various ways and are not limited to the embodiments shown.

3 illustrates an embodiment of a process in which 3D foot scanning data applied to a customized shoe system according to the present invention and shoes to be manufactured are matched.

Referring to FIG. 3, the service providing server includes a 3D scan data unit 31 for acquiring 3D scan data of a foot by a plurality of scanners; The feature extracting unit 221 may extract a feature portion from the foot site 3D scan data transmitted from the scan data unit 31. The feature extraction unit 221 may extract structural features of each foot, including the overall shape of the foot. The feature extraction unit 221 may transmit the foot site 3D scan data and the extracted feature to the scan database 32.

Shoes suitable for the foot 3D scan data stored in the scan database 32 can be retrieved from the shoe database 33 for shoes suitable for the foot with information on various shoes and for various features. The matching unit 35 may retrieve at least one shoe from the shoe database 33 and transmit it to the model selection module 341. The shoe database 33 may store basic data for each shoe in advance for each type of shoe that can be customized, and for example, last data in which basic data about last of each shoe is stored in advance for each shoe type that can be customized. Can be stored. The model selection module 34 may consist of a 3D foot scan unit 341 and a 3D shoe model unit 342, and at least one shoe possible by comparing the information transmitted from the scan database 32 and the matching unit 35. Has the function of selecting a model. The selected shoe model may then be sent to the design selection unit 371.

The virtual wearing unit 37 may be installed in the service providing server, and the model generating unit 36 may be arranged to modify the shoes selected in the matching unit 35 according to the needs of the customer. There may also be a priority unit 361 that determines the priority for the model generated in the model generation unit 36. Based on the priority determined in the priority unit 361 and the design selected by the customer, the wearing state is applied to the virtual wearing unit 37 using, for example, an augmented reality device or a virtual reality device in the virtual wearing unit 37. Can be generated by The virtual wearing state can then be sent to the actuation application 161 installed in the customer's portable electronic device, based on which the customer can select a shoe that is suitable for him.

 The shoe database 33 may include a style of shoes such as dress shoes or fashion shoes; Types of shoes such as men's shoes, ladies' shoes, hiking boots, sneakers, sneakers, boots and loafers; Alternatively, it can store collateral information such as uppers, outsoles, midsoles, insoles, shoelaces, and accessories. In addition, the shoe database 33 may store data of the basic last for manufacturing the shoe according to the style or type of the shoe. In addition, the scan database 33 may receive and store customer information and foot scan data of the customer from 3D scanners registered in advance. In addition, the scan database 33 may accumulate and store foot scan data of the customer, analyze the characteristic data of the customer precisely over time, or store data about changes in individual foot types.

The virtual wearing module 37 may generate a shoe model selected from the shoe database 33 based on a customer's selection in a form that can be displayed by visually realizing a wearing state. If necessary, the recommended shoe model database may be disposed in the shoe database 33 and provided to the model selection module 34 to generate a virtual reality in the virtual wearing unit 37 to provide to the customer.

Once the shoe is selected via the actuation application 161, the customer's order can be placed, processed by the order processing unit 38, and the final data generated by the final data unit 39 to generate the 3D design module P14. ) May be sent. The 3D design module (P14) can produce the last of the customer based on the final data, and then create shoes for the customer and deliver them to the customer or the merchant. This may complete the order and offer.

Figure 4 shows an embodiment of a 3D scanner applied to the shoe manufacturing system according to the present invention.

4, the 3D scanner includes a scanning tray 42 in which a foot is located; A guide guide 41 formed with a guide for circularly moving a rail structure or the like along a circumferential surface of the scanning tray 42; And a plurality of laser cameras 43a, 43b, 43c for acquiring images of different directions for the feet located on the scanning tray 42. The scanning tray 42 may have a plane in which the foot can be positioned, and the guide guide 41 may be circular with a portion of the upper surface open. The laser cameras 43a, 43b and 43c may be formed of a central laser camera 43c for acquiring an image of the sole portion and left and right laser cameras 43a and 43b for acquiring the left and right images. The central laser camera 43c has a structure movable along a plane, and the left and right laser cameras 43a and 43b rotate the induction guide 41 so that foot images of various directions are obtained. Each of the laser cameras 43a, 43b, and 43c moves along the plane or guide guide 41, acquires an image for the same view, generates three-dimensional models at each position, and is stabilized through preliminary matching and precise matching. 3D foot model can be generated.

Various scanner devices can be applied to the system according to the present invention, and the present invention is not limited to the presented embodiments.

According to the invention. The service provider may create a shoe database and a last database for providing a customized shoe service according to the present invention to a service providing server. The service providing server may prepare to manufacture shoes by registering a 3D manufacturing module in advance, and receive scan data by registering a 3D scanner installed in a merchant or each region. Customers or merchants can install the application on their terminal or PC and join as a member as needed.

In such a state, if the customer wants a customized shoe service according to the present invention, the foot of the customer is scanned with a 3D scanner, and the scanned foot data can be stored in the scan database of the service providing server together with the customer information. The service providing server may extract the foot shape and the dimensional data from the foot scan data of the customer and apply it to 3D modeling, and provide a shoe model selection screen to the customer to select a shoe design of the desired taste of the customer. Depending on the shoe model, the customer can choose the color or material of the shoe upper, the lining, the shoelaces, the middle sole, and the color and pattern of the out sole.

As such, when the customer selects a shoe model, the service providing server generates a 3D foot scan model and a 3D shoe model from the 3D foot scan data and the selected shoe model. The process of generating the 3D foot scan model from the scan data may be performed through linear matching by a plurality of scanners.

5 illustrates an embodiment of a process of generating 3D foot scan data applied to a system according to the present invention.

Referring to FIG. 5, scan images for various directions of a foot may be generated by scanners 51_1 to 51_N such as a plurality of laser cameras, and a plurality of scan images may be obtained at the same time. Images acquired at the same time by the plurality of scanners 51_1 to 51_N may be matched by being combined with each other along the direction by the scan matching unit 52 based on the same feature. The registration image matched by the scan matching unit 52 may be made into the foot area 3D scan data by the 3D scan data unit 53 through a position matching, a direction matching, and a size matching process. The generated 3D scan data may be foot site scan data for 3D shoe selection, design, and manufacturing. Specifically, the number of scanners may be three, for example, foot models 1 to 3 are generated by linear matching, and the three foot models may be preliminary matching. Afterwards, the pre-matched image may be made into 3D scan data of the foot region through a precise registration process.

In order to generate a shoe model suitable for the foot area 3D scan data, the search for the shoe database and the last database is required. Features can be extracted for this purpose. Once a shoe model is selected, a virtual fitting procedure can be performed, whereby an optimal model can be recommended or selected. In this process, the virtual wearing state by the augmented reality may be displayed on the display unit of the customer.

When the customer views the virtual wearing image of the recommended model and finally confirms the shoe model, the service provision server may receive the customer's order, process the payment, and transmit the relevant data to the design module or the manufacturing module to manufacture the shoe model. have. Through this process, the service providing server may produce a customized last for a customer, manufacture a customized shoe based on the last, and provide the same to a customer.

As described above, according to the present invention, the shoes model generated by the virtual fitting system is recommended using the shoes information and the foot scan information selected by the customer, and the shoes can be checked by the virtual ignition simulation, so that the shoes can be checked best. You can easily and conveniently provide the right shoes.

6 illustrates an embodiment of a process of determining a three-dimensional image applied to the manufacturing method of 3D shoes according to the present invention.

In general, the characteristics of the foot can be expressed through the dimensions, foot dimensions include foot length, ball distance, heel width, ball circumference. A two-dimensional or three-dimensional feature may be extracted from the foot scan shape for three-dimensional modeling, and a 3D image may be determined based on this.

Referring to FIG. 6, scan data may be generated by a plurality of scanners (P61), and a shape and a cross section of a bottom surface may be extracted from a three-dimensional foot scan shape by each scanner. For example, the heel width of the foot 15% of the foot length and the foot ball width of the 66% point from the shape of the bottom surface may be selected as the two-dimensional feature (P62). Then, the movement of the foot in the section of 55% of the foot length from the three-dimensional foot scan shape may be selected as the three-dimensional feature (P63). In this way, when the 2D feature and the 3D feature are selected from the 3D scan images acquired by the respective scanners, the foot length may be measured and determined in the projection view of the bottom of the foot (P64). The foot width may be determined by measuring the left / right and left and right lengths of the foot ball (P65), and the foot circumference may be determined by cutting the 3D foot scan image into a vertical plane (P65). As such, when the foot length, the foot width, and the foot circumference are determined, the 3D image may be determined, and a shoe model may be selected based on this.

7 illustrates an embodiment of a process of determining a model of the 3D shoes applied to the manufacturing method of the 3D shoes in accordance with the present invention.

The foot site 3D scan data may be prepared according to the method described above for the determination of the shoe model (P71), and registration for the sole may proceed based on the 3D scan data (P72). And the insole surface and the bottom of the shoe can be matched (P73). In this process, a virtual fitting process or augmented reality may be applied. In this way, if the insole is in close contact with the arch of the sole as close as possible, weights may be applied to the foot scan model and the shoe model (P74). For example, the weight may be applied according to the variable element while maintaining the matching between the sole and the insole as much as possible, and specifically, the weight may be applied according to friction, pressure, etc. (P74). When the weight is applied in this manner, the distance between the contacts may be measured by applying a signed distance function (SDF) (P75). And accordingly, the SDF application model can be selected (P76). When the shoe model is selected in this manner, suitability determination may be made (P77). If the optimal shoe model is determined using the SDF measurement information, and if it is not a suitable shoe model (NO), the weighting step may be performed again. (P74). Feedback may be provided to the recommendation model generator that functions the 3D shoe model design. Alternatively, if it is a suitable shoe model (YES), a shoe model can be determined (P78) and stored in the shoe model database. The virtual wear simulation process using the foot scan and the shoe model may be performed, and the shoe and foot scan model generated in the virtual fitting process may be applied to the virtual wear simulation process. Select the shoe type you want from the list of shoe types, then recommend the supported shoe designs among the selected shoe types, and choose one of the recommended designs to match your foot scan model, shoe model, and three-dimensional model based on the selected design. Can be generated. Afterwards, the virtual ignition simulation result may be three-dimensionally through an output device such as a monitor or a smart phone using a virtual reality (VR) technology.

Virtual ignition simulation can be worn virtually by applying their feet to a shoe picture displayed on the smartphone camera, and can also save the picture and share it with friends via SNS. In addition, by developing a user interface to which augmented reality is applied and selecting a preferred type and color of a shoe, a shoe to which a foot is applied is displayed on a screen so that a wearing state can be confirmed quickly and accurately.

8 illustrates an embodiment of a process of matching a plurality of images applied to a manufacturing method according to the present invention.

Image registration refers to a process of generating 3D images by combining images acquired by scanners or laser cameras in different directions with each other.

At least two images may be matched with each other (P811), and at least two images may be acquired in different directions at the same time. Linear matching may be performed on each image (P821, P822), and preliminary matching may be performed based on the linear matching (P83). Three-dimensional images are obtained by preliminary matching, and the three-dimensional images may be contrasted with the respective scanned images. When the error is corrected according to the contrast result, a 3D precision matched image may be obtained (P84). The matching process for the plurality of images may be applied to the acquisition process of the foot site 3D scan data or the shoe model, but is not limited thereto.

9 illustrates another embodiment of a scanner applied to a manufacturing system or a manufacturing method according to the present invention.

Referring to Fig. 9, the scanning device includes a movement guide guide 91 made in a circle; Two scanning units 96 arranged to be movable with each other along the movement guide 91; A tray 92 in which the foot is located; It may include one scanning unit 96 disposed below the tray 92.

The 1 scan unit 95 and the 2 scan unit 95 may each comprise an image acquisition unit such as a linear laser and a camera, so that images of the feet located on the tray 92 in different directions and positions are obtained. do. The one scan unit 95 may be positioned in the base unit 931 having a planar shape, and the base unit 931 may be moved in various directions along the plane by the positioning unit 932. The image of the sole can be obtained in various directions and positions by one scanning unit 95, for example, the position can be determined by the laser unit and the image can be obtained by the camera unit.

An image of an upper portion of the foot, such as a foot or the like, may be acquired by the two scanning unit 96, and the two scanning unit 96 may move the movement guide guide 91 in a circular manner to acquire images of various directions. The two scanning units 96 are moved along the movement guide 91 by the operating unit 97 such that an image of the upper part of the foot is obtained at various positions or directions.

As described above, multiple images may be obtained by the 1, 2 scan units 95, 96 at the same or different times. The acquired plurality of images may be matched and made into 3D scan data.

10 illustrates an embodiment of a matching process applied to a manufacturing system or a manufacturing method according to the present invention.

Referring to FIG. 10, images acquired at a plurality of different positions may be linearly matched. For example, as described above, the plurality of 2 scan images 101a acquired in the 2 scan units and the plurality of 1 scan images 101b obtained in the 1 scan unit are respectively linearly matched so that the 1, 2 registration images 102a 102b) can be made. In addition, different linear registration images 102a and 102b may be totally matched based on the image acquisition time, and may be formed as a preliminary registration image 103. The preliminary match image 103 may then be made into a fine match image 104 as opposed to the linear match images 102a and 102b or the scan images 101a and 101b. The precise registration image 104 can then be used as foot site 3D scan data.

The 3D scan data may be generated in various ways, and is not limited to the presented embodiment.

The system according to the present invention builds a database of three-dimensional foot data of a plurality of customers to be used in the prevention and treatment of foot disease, and can be used as a basis for selecting the optimal model for each body type.

Claims (4)

1. In the customized shoe manufacturing system by three-dimensional scanning,

   A 3D scan processing module P11 capable of data communication with a 3D image generating apparatus disposed at at least one location;

   An information processing module P13 capable of data communication with the 3D scan processing module P11 and processing information related to the foot 3D data transmitted from the 3D scan processing module P11; And

   Customized shoe manufacturing system comprising a 3D design module (P14) for generating a shoe in a 3D print manner from the foot 3D data transmitted from the information processing module (P13).
2. The customized shoe manufacturing system according to claim 1, wherein the 3D scan processing module (P11) further comprises a scan information analysis unit for analyzing a feature of the 3D image transmitted from the 3D image generating apparatus.
3. Receiving foot 3D scan data;

   A feature is extracted from the foot 3D scan data and stored in the scan database 32;

   Selecting matching shoes from the shoe database 33 based on the extracted features;

   Proceeding the selection process of shoes matched from the hill APP (161);

   Generating at least one model for the selected shoe;

   Performing a virtual wearing process for each of the at least one model; And

   Customized shoe manufacturing system comprising the step of determining the final shoe data as the virtual wearing process to the 3D design.
4. The system of claim 3, wherein the foot scan data further comprises generating and registering a plurality of scanned images.

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