System for measuring the closure of ski boot buckles

Abstract

This application provides an image measurement system for ski boot fastening, including a measurement machine with a measurement space and a bottom space, and equipped with a central processor and a through-hole; the measurement platform is set in the measurement space, and the ski boot is supported by the through-hole; an optical positioning lens image acquisition module is provided at the bottom, which captures the image of the boot sole seen from the transparent part; a multi-directional moving optical circumferential dynamic lens is also provided in the measurement space, which realizes three-axis movement through components such as lifting components, saddle and slide rail, to obtain multi-angle images of the ski boot upper; the image data is used by the image processing module in the central processor to perform three-dimensional construction and size measurement, and the various parameters are displayed on the control interface; the system is also equipped with control buttons and an adjustable light source to assist in accurate image acquisition, improve detection efficiency and boot matching accuracy, and significantly reduce labor and time costs, thus improving the practical progress of detection quality.

Description

Technical Field

[0001] This application relates to a ski equipment testing technology, particularly an image measurement system for ski boot fastening. Through multi-lens dynamic capture and three-dimensional construction technology, it can accurately measure the outer contour and fastening parts of ski boots, and can be applied to the fields of ski equipment manufacturing and quality control technology. Background Technology

[0002] Note: With the rise in popularity of outdoor sports and the increasing prevalence of skiing, the design and manufacturing of ski-related equipment, such as skis, ski boots, and bindings, are constantly evolving. Ski boots, in particular, as the intermediary between the skier and the ski, have a direct impact on user comfort, control stability, and safety due to their geometry, fastening points, and dimensional accuracy. In the traditional ski boot manufacturing process, precise measurement of the appearance and fastening points is crucial for ensuring quality and standardized matching. However, most current measurement methods rely on manual fixtures, calipers, and steel tape measures, which are prone to errors due to human factors. Furthermore, most methods only allow for single-point, two-dimensional measurements, failing to effectively capture the complex three-dimensional structural information of ski boots. Especially for ski boots involving multiple fastening points, elevation differences, and curved contours that encompass all dimensions of men's and women's shoes, manual measurement is time-consuming, making traditional methods clearly insufficient to meet the demand for accurate measurement.

[0003] Furthermore, existing systems often lack measurement and optimization design for the fastening mechanisms of ski boots, such as the front fastening section and the rear hole section. This results in limited acquisition angles and loss of detailed information, which in turn affects the final modeling quality and matching accuracy. Moreover, the ski boot market increasingly demands personalization and precise matching, with users hoping to achieve a better skiing experience through customized designs. Without high-precision, automated, and easy-to-operate measurement devices to assist in constructing 3D data models of ski boots, the promotion and application of personalized footwear technology will be significantly limited. Therefore, the industry urgently needs a 3D image measurement device that can accurately measure the external contours and fastening structures of ski boots to compensate for the shortcomings of existing technologies and improve the efficiency and accuracy of ski equipment design and manufacturing. Summary of the Invention

[0004] The technical problem to be solved by this application is to provide an image measurement system for the fastening of ski boots. By combining a circumferential dynamic lens module and a bottom optical positioning lens, along with a multi-axis dynamic moving structure and image processing, this system aims to improve and break through the problem that the time cost of manual measurement is too high for ski boots with multiple fastening points, height differences, curved contours and other features that cover all sizes of men's and women's shoes. Therefore, the traditional method obviously cannot meet the requirements for accurate measurement.

[0005] This application mainly utilizes an image measurement system comprising a measurement machine, which has an internal measurement space and a bottom space, and a through-hole for the bottom lens to capture images upwards; a measurement platform is set in the measurement space to support the ski boot to be measured, and has a transparent part in the center to facilitate lens focusing; the bottom space is equipped with an optical positioning lens image capturing module, which faces upwards to capture the bottom fastening structure of the ski boot, and is precisely positioned in the Z-axis direction by a central positioning bracket; the circumferential image capturing module includes at least one optical circumferential dynamic lens, which is set in the measurement space and supported and guided by a movable bracket, so that the lens can perform circumferential shooting along the X and Y axes, and cooperates with the lifting component to achieve Z-axis height adjustment, performing multi-angle and multi-height three-dimensional scanning; the lifting component adopts a design of transmission motor, driven wheel and lifting belt, combined with cross seat and slide rail, to achieve high degree of freedom of motion control. The central processing unit has an internal image processing module that receives image data captured by the optical positioning lens and the circumferential dynamic lens, performs 3D modeling and dimensional measurement, and measures parameters including but not limited to the width of the shoe upper, the outer waist height, the outer waist length, the height of the rear eyelet, the inner waist height, the inner waist length, and the height of the rear buckle. The results can be displayed in real time through the control interface. Control buttons are also provided for users to start, stop, and perform safety operations.

[0006] The measurement architecture and image processing technology proposed in this application can effectively solve the problems of low efficiency, large error, high manpower and time costs and complex operation faced by traditional measurement technologies. It can be widely used in scenarios such as personalized design of ski boots, production inspection, standard comparison of buckles and equipment selection, and has high practicality and industrial application potential.

[0007] The other effects and embodiments of this application are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a three-dimensional view of the image measurement system for ski boot fastening in this application;

[0010] Figure 2 This is a three-dimensional view of the measurement space of the image measurement system for ski boot fastening in this application;

[0011] Figure 3 This is an external view of the measuring machine of the image measurement system for ski boot fastening in this application;

[0012] Figure 4 yes Figure 3 Control interface 70 appearance Figure 1 ;

[0013] Figure 5 This is the measurement implementation of the image measurement system for ski boot fastening in this application. Figure 1 ;

[0014] Figure 6 yes Figure 3 Control interface 70 appearance Figure 2 .

[0015] Figure 7 This is the measurement implementation of the image measurement system for ski boot fastening in this application. Figure 2 ;

[0016] Figure 8 This is the measurement implementation of the image measurement system for ski boot fastening in this application. Figure 3 ;

[0017] Figure 9 This is the measurement implementation of the image measurement system for ski boot fastening in this application. Figure 4 ;

[0018] Figure 10 This is a block diagram of the image measurement system for ski boot fastening according to this application.

[0019] Symbol Explanation

[0020] 1: Measuring machine 2: Measuring space

[0021] 3: Bottom space 4: Middle layer

[0022] 5: Penetrating section 10: Central processing unit

[0023] 20: Optical circumferential dynamic lens; 30: Circumferential image capture module

[0024] 31: Circumferential positioning bracket; 311: Long vertical window

[0025] 32: Lifting assembly; 33: Lifting belt

[0026] 34: Drive motor; 35: Driven wheel

[0027] 36: Saddle 37: Horizontal seat

[0028] 38: Guide slide 39: Slide rail

[0029] 40: Measurement platform; 41: Transparent part

[0030] 42: Guide rail; 43: Drive belt

[0031] 44: Drive wheel

[0032] 50: Optical positioning lens image acquisition module

[0033] 51: Center positioning bracket; 60: Control button

[0034] 61: Start button 62: Stop button

[0035] 63: Restart button 64: Force shutdown button

[0036] 70: Control interface P1: Shoe upper width dimension

[0037] P2: Waist height dimension; P3: Waist length dimension

[0038] P41: Rear hole height dimension; P5: Inner waist height dimension

[0039] P6: Inner waist length dimension; P42: Rear buckle height dimension

[0040] S: Ski boot; S1: First fastening part

[0041] S2: Rear hole portion; S3: Second fastening portion

[0042] S4: Rear hook 80: Adjustable ring light source

[0043] 90: Image Processing Module Detailed Implementation

[0044] In the embodiments described below, the positional relationships include: up, down, left, and right. Unless otherwise specified, they are all based on the direction shown by the components in the diagram.

[0045] Please see Figures 1-10 The image shown is a preferred embodiment of the ski boot fastening image measurement system of this application. It is mainly used for the three-dimensional image construction and precise measurement of the ski boot fastening structure and dimensions. However, these embodiments are for illustrative purposes only and are not limited to this structure in the patent application; it includes:

[0046] A measuring machine 1 has an internal measuring space 2 above a measuring device and a bottom space 3 below a measuring device. An intermediate layer 4 is provided between the two spaces. A through-hole 5 is provided in the center of the intermediate layer 4 for the lower lens to take pictures of the object above. A central processing unit 10 is provided inside the bottom space 3 to control the operation of the overall system and perform image data analysis and processing.

[0047] The measurement platform 40, located in the measurement space 2, is a circular plate. The measurement platform 40 has a transparent part 41, which can be made of glass or acrylic. The transparent part 41 is located opposite the through part 5, allowing it to be seen through for the bottom lens to take pictures. The bottom of the measurement platform 40 has a circular guide rail 42, and a transmission belt 43 is arranged around the measurement platform 40. The belt is driven by a drive wheel 44 to rotate, so that the measurement platform 40 can rotate in a ring along the guide rail 42, improving the efficiency of multi-angle image acquisition.

[0048] An optical positioning lens image capturing module 50 is provided in the bottom space 3. Its lens faces upward and corresponds to the through part 5. It can capture the bottom image of the ski boot S above the measurement platform 40 through the transparent part 41. The optical positioning lens image capturing module 50 is electrically connected to the central processing unit 10 and is fixed in the vertical direction of the Z-axis by a central positioning bracket 51 to ensure its positioning accuracy.

[0049] The measurement space 2 is further provided with a circumferential image acquisition module 30, including at least one optical circumferential dynamic lens 20. The optical circumferential dynamic lens 20 is supported by a circumferential positioning bracket 31 and can be guided to move around the measurement platform 40 in the X and Y axis directions. The optical circumferential dynamic lens 20 is disposed inside the circumferential positioning bracket 31. A lifting component 32 is connected to the rear side of the circumferential positioning bracket 31. The lifting component 32 slides along the longitudinal long window 311 provided on the circumferential positioning bracket 31, driving the optical circumferential dynamic lens 20 to move up and down.

[0050] The lifting assembly 32 has a transmission motor 34 at the upper end and a driven wheel 35 at the lower end, which together drive a lifting belt 33 to operate in a cycle, so that the optical circumferential dynamic lens 20 can move up and down. The bottom of the lifting assembly 32 has a saddle 36, and a horizontal seat 37 is set below it. The bottom sides of the horizontal seat 37 have guide slides 38, which are arranged on the slide rail 39, so that the optical circumferential dynamic lens 20 can be lifted, moved laterally and forward and backward, and realize multi-axis dynamic scanning.

[0051] The measuring machine 1 has a control interface 70 on one side, which provides image display and operation interface, and has multiple control buttons 60, including a start button 61, a stop button 62, a restart button 63 and a forced shutdown button 64, which the user can use to operate the measurement process.

[0052] The central processing unit 10 is equipped with an image processing module 90, which is used to receive and process multi-angle image data captured by the optical positioning lens image capturing module 50 and the optical circumferential dynamic lens 20, and perform three-dimensional reconstruction and precision dimensional measurement.

[0053] During measurement, the ski boot S is placed on the measurement platform 40. The front of the boot has a first fastening part S1 and a second fastening part S3 on both sides, and the rear end has a rear hole S2. The rear hole S2 can be selectively fitted with a rear buckle S4, or the measurement can proceed without a rear buckle S4. Figures 4-5 As shown, the rear hole S2 was not fitted with a rear hook S4 and was measured; as Figures 6-7 As shown, a rear hook S4 has been attached to the rear hole S2 and measurements are being taken; as... Figures 5-9 As shown, the central processing unit 10 will analyze the following dimensional parameters:

[0054] Shoe upper width dimension P1: The width from the first fastening part S1 to the outer edge of the shoe upper;

[0055] Outer waist height dimension P2: The vertical distance from the first fastening part S1 to the ground;

[0056] Outer waist length dimension P3: The horizontal distance from the first fastening part S1 to the rear hole part S2;

[0057] Rear hole height dimension P41: Vertical distance from the rear hole portion S2 to the ground;

[0058] Inner waist height dimension P5: The height from the second fastening part S3 to the ground;

[0059] Inner waist length dimension P6: The length from the second fastening part S3 to the rear hole part S2.

[0060] Rear hook height dimension P42: Vertical distance from the rear hook S4 to the ground;

[0061] Finally, the central processing unit 10 will automatically display the measured dimensional parameters as shown in the image. Figure 4 The dimension field in the control interface 70;

[0062] To improve image quality, an adjustable ring light source 80 is also provided in the measurement space 2 to provide a uniform and adjustable brightness lighting environment, which helps the image capturing module to perform high-quality scanning at various angles.

[0063] Additionally, the central processing unit 10 can be an embedded industrial control host with GPU computing capabilities (such as one equipped with an NVIDIA Jetson Orin or Intel Core i7+RTX series display adapter) to support real-time image processing and 3D modeling.

[0064] The image sensing components used in the optical positioning lens image capturing module 50 and the optical circumferential dynamic lens 20 should be CMOS components with a resolution of not less than 12 million pixels, and have low-light performance and high-speed shutter to reduce motion blur.

[0065] The control interface 70 can use a touch-screen industrial tablet and install a dedicated user interface (GUI) program to display images, models and measurement results.

[0066] Software and algorithm implementation: Multi-camera time synchronization tools such as OpenCV are used, combining embedded timecode and trigger signals to ensure synchronized camera capture. Correction is achieved using Zhang's calibration method to adjust lens distortion parameters.

[0067] Image stitching and model reconstruction: Feature point matching techniques such as SIFT / SURF are used for multi-view image mapping. SfM (Structure from Motion) and MVS (Multi-view Stereo) algorithms are employed to construct dense point clouds. If combined with an active structured light projection device, Gray-code and phase-shift techniques can be applied to improve modeling accuracy.

[0068] Size identification and calculation: Semantic segmentation of the ski boot shape and fastening area is performed using a deep learning model (such as Mask R-CNN). Combined with 3D point cloud coordinate calculations (such as PCL Point Cloud Library), the vertical and horizontal distances between each geometric segment are calculated to obtain various size parameters (P1~P6, P41, P42).

[0069] This application utilizes the multi-axis motion of the circumferential lens and the bottom-mounted alignment of the central lens, along with the image processing module 90 built into the central processor 10, to quickly complete the three-dimensional measurement and precise recording of the S-shaped buckle area and external dimensions of ski boots. This can significantly save labor costs and provide high application value for ski equipment design, quality inspection, and personalized boot manufacturing, thereby improving the practical advancement of inspection quality.

[0070] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of this application, and are not intended to limit the implementation methods of the technology of this application in any way. Any person skilled in the art may make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in this application, but these should still be regarded as the technology or embodiments that are substantially the same as those of this application.

Claims

1. A video measurement system for ski boot fastening, characterized in that, The image measurement system for ski boot fastening includes: A measuring machine has a measuring space and a bottom space, with an intermediate layer separating the measuring space and the bottom space, and a through-hole in the center of the intermediate layer; a central processing unit is disposed in the bottom space. A measurement platform is set in the measurement space, with its center corresponding to the through part, and is used to support the ski boots to be measured. An optical positioning lens image acquisition module is located in the bottom space and faces upward to correspond to the through part, and is electrically connected to the central processing unit, and is positioned at the Z-axis position of the measurement platform through a central positioning bracket; A circumferential image acquisition module includes at least one optical circumferential dynamic lens, which is located in the measurement space and supported and guided by a circumferential positioning bracket, so that it can move around the measurement platform along the X-axis and Y-axis directions to obtain a three-dimensional image of the ski boot's upper. A control interface is located on one side of the measuring machine and electrically connected to the central processing unit; and The central processing unit is equipped with an image processing module for receiving and analyzing image data captured by the optical positioning lens image capturing module and the optical circumferential dynamic lens to perform three-dimensional construction and dimensional measurement.

2. The image measurement system for ski boot fastening according to claim 1, characterized in that, The circumferential positioning bracket houses the optical circumferential dynamic lens, and a lifting assembly is slidably mounted on its rear side. This lifting assembly guides the optical circumferential dynamic lens to move up and down along a longitudinal window. The lifting assembly includes a transmission motor at its upper end and a driven wheel at its lower end, and is fitted with a lifting belt to drive the optical circumferential dynamic lens to move up and down. A saddle is connected to the bottom of the lifting assembly, and a horizontally sliding cross seat is provided below the saddle. Guide slides are provided on both sides of the bottom of the cross seat, and the guide slides are arranged on front and rear slide rails to enable the optical circumferential dynamic lens to move in multiple directions, including up and down, horizontally, and forward and backward.

3. The image measurement system for ski boot fastening according to claim 1, characterized in that, The measurement platform is a circular plate with a transparent part in the center, which corresponds to the image capturing module of the optical positioning lens.

4. The image measurement system for ski boot fastening according to claim 1 or 3, characterized in that, The measurement platform is surrounded by a transmission belt and driven by a drive wheel. The bottom of the measurement platform is equipped with a guide rail structure, which allows it to rotate in a ring along the guide rail under the traction of the drive wheel and the transmission belt.

5. The image measurement system for ski boot fastening according to claim 1, characterized in that, The measuring machine is further equipped with control buttons on one side, including a start button, a stop button, a restart button and a forced shutdown button.

6. The image measurement system for ski boot fastening according to claim 1, characterized in that, The control interface can display the measured dimensions of the ski boot, including the width of the upper, the height of the outer waist, the length of the outer waist, the height of the rear eyelet, the height of the inner waist, the length of the inner waist, and the height of the rear buckle.

7. The image measurement system for ski boot fastening according to claim 6, characterized in that, The ski boot has a first fastening part and a second fastening part on both sides near the front of the upper, and a rear hole on the rear end. The width of the upper is the distance from the first fastening part to the side edge of the upper, the outer waist height is the height from the first fastening part to the ground, the outer waist length is the length from the first fastening part to the rear hole, the rear hole height is the height from the rear hole to the ground, the inner waist height is the height from the second fastening part to the ground, the inner waist length is the length from the second fastening part to the rear hole, and the rear buckle height is the vertical distance from the rear buckle to the ground.

8. The image measurement system for ski boot fastening according to claim 1, characterized in that, This optical circumferential dynamic lens is a multi-axis servo-driven lens, capable of high-precision motion control.

9. The image measurement system for ski boot fastening according to claim 1, characterized in that, The measurement space is equipped with an adjustable ring light source to provide uniform illumination and assist in image acquisition.

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