Digital scanning equipment for clothing model

Abstract

The invention relates to the technical field of garment pattern design, and provides a garment pattern digital scanning device which comprises a bearing platform and a mounting rack, the mounting rack is provided with a plurality of scanners from top to bottom, the bearing platform comprises a frame, a moving belt and a force bearing plate, grooves are formed in the upper side of the force bearing plate in an array mode, and the moving belt is arranged in the grooves. A base block is arranged in the groove, and a first sensing piece is arranged between the bottom of the groove and the base block; the model person treads on the base block by feet to cause resistance change of the corresponding first sensing piece so as to position the position of the model person, and the scanner correspondingly moves, so that the position of the model person is always controlled in the central area of the circumferential movement track of the scanner; the distance between the scanner and the model person in the circumferential scanning process is in a controllable fluctuation range, it is guaranteed that the generated animation model can accurately reflect the physical performance of the garment in a real dynamic scene, and then designers can accurately judge the dynamic effect of the garment and effectively correct the model.

Description

Technical Field

[0001] This invention relates to the field of garment pattern design technology, specifically a digital scanning device for garment patterns. Background Technology

[0002] In the field of garment pattern design, after completing the initial design, designers typically need to wear the garment on models and observe its dynamic movement to adjust and refine the pattern. In recent years, with the development of 3D digital technology, using 3D scanning equipment to capture dynamic clothing states and generate animated models has become an important means of optimizing garment pattern design. In this process, models usually need to move (i.e., walk, run) on a specific dynamic platform, and the scanner continuously collects multi-angle 3D image data (such as...) through circumferential movement. Figure 1 As shown in the figure, a dynamic three-dimensional model of the garment in motion is then constructed, which is used by designers to analyze and improve the pattern.

[0003] However, in practice, because the models' movements on the motion platform are difficult to maintain within a stable circular scanning area, positional shifts are prone to occur (e.g., ...). Figure 2 As shown, factors other than human anatomy and garment pattern design cause significant changes in the distance between the scanner and the model during circumferential scanning. These distance fluctuations directly lead to problems such as inconsistent scan data resolution, distortion of the 3D model, and decreased motion capture accuracy. Consequently, the generated animation model cannot accurately reflect the physical performance of the garment in real dynamic scenes (such as fabric stretching characteristics and dynamic wrinkle distribution), directly affecting designers' accurate judgment of the garment's dynamic effects and effective pattern correction.

[0004] Therefore, the present invention proposes a digital scanning device for clothing patterns to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a digital scanning device for clothing patterns to solve the above-mentioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A digital scanning device for clothing patterns includes a support platform for supporting a mannequin's movement and a mounting frame rotatably mounted above the support platform. The mounting frame has several scanners arranged from top to bottom for digitally acquiring three-dimensional image data of the mannequin. The support platform includes a frame, a closed-loop, operable motion belt, and a support plate for supporting the motion belt. Grooves are arrayed on the upper side of the support plate, and a base block is placed in each groove. A first sensor is provided between the bottom of the groove and the base block to sense the mannequin's footsteps and thus locate the mannequin's position. The upper side of the base block is flush with the upper side of the support plate. The digital scanning device also includes a follow-up component that drives the scanners to move accordingly with the mannequin based on the positioning signal from the corresponding first sensor.

[0007] In one alternative: a seal is provided between the side of the base block and the groove wall.

[0008] In one alternative: the mounting bracket is further provided with a pan-tilt unit corresponding to each scanner, and the scanner is mounted on the corresponding pan-tilt unit.

[0009] In one alternative: the mounting bracket is further provided with a background screen, which is positioned directly opposite the scanner.

[0010] In one alternative embodiment: the follower assembly includes a first slide rail parallel to the direction of the support platform and a second slide rail perpendicular to the direction of the support platform. The first slide rail is provided with a first lead screw and a first slide block is slidably attached thereto. The first lead screw passes through the first slide block in a threaded manner. The second slide rail is fixedly connected to the first slide block. The second slide rail is provided with a second lead screw and a second slide block is slidably attached thereto. The second lead screw passes through the second slide block in a threaded manner. The mounting bracket is rotatably mounted on the second slide block. The follower assembly also includes a first driving member and a second driving member for respectively driving the first lead screw and the second lead screw to rotate.

[0011] In one alternative: the digitizing scanning device further includes a third drive unit for rotating the mounting bracket.

[0012] In one alternative: the motion belt is divided into a constant speed zone, an acceleration zone and a deceleration zone along its width direction, wherein a second sensor is provided in the groove corresponding perpendicularly to the acceleration zone to trigger the motion belt to accelerate, and a third sensor is provided in the groove corresponding perpendicularly to the deceleration zone to trigger the motion belt to decelerate.

[0013] In one alternative: the exercise belt is provided with dividing lines for models to identify constant speed zone, acceleration zone and deceleration zone.

[0014] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows: When the model's feet step on the base block, it causes a change in the resistance of the corresponding first sensor. The control system locates the model's position in real time based on the resistance change signal of the pressure-sensitive resistor at the corresponding location. The control system then controls the follow-up component to move according to the positioning signal of the first sensor, thereby moving the scanner accordingly. This keeps the model's position in the center area of ​​the scanner's circumferential motion trajectory, ensuring that the distance between the scanner and the model is within a controllable fluctuation range during the circumferential scanning process. This guarantees that the generated animation model can accurately reflect the physical performance of the clothing in a real dynamic scene, which in turn helps designers to accurately judge the dynamic effect of the clothing and effectively correct the pattern.

[0015] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Furthermore, these drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments.

[0017] Figure 1 This is a schematic diagram illustrating the ideal state of a scanner circling around a model to acquire 3D image data.

[0018] Figure 2 This is a schematic diagram illustrating the circumferential 3D image data acquisition state of the scanner when the model is offset.

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of the present invention.

[0020] Figure 4 This is a partial top view of the carrying platform in an embodiment of the present invention.

[0021] Figure 5 for Figure 3 Enlarged view of point A in the middle.

[0022] Figure 6 for Figure 4 Enlarged view of section B in the middle.

[0023] Figure 7 for Figure 4 Enlarged view of point C in the middle.

[0024] Figure 8 This is a schematic diagram of the follower component in an embodiment of the present invention.

[0025] Figure 9This is a schematic diagram of the installation of the exercise belt in an embodiment of the present invention.

[0026] Figure reference numerals: 1-Bearing platform, 101-Frame, 102-Motion belt, 1021-Constant speed zone, 1022-Acceleration zone, 1023-Deceleration zone, 103-Bearing plate, 2-Follow-up component, 201-First slide rail, 202-Second slide rail, 203-First slide block, 204-First lead screw, 205-First driving component, 206-Second slide block, 207-Second lead screw, 208-Second driving component, 3-Mounting bracket, 4-Scanner, 5-Pan-and-shoot head, 6-Background curtain wall, 7-Third driving component, 8-Groove, 9-Base block, 10-First sensor, 11-Sealing component, 12-Second sensor, 13-Third sensor, 14-Dividing line. Detailed Implementation

[0027] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0028] Please see Figures 3-7 A digital scanning device for clothing patterns includes a support platform 1 for supporting a model's movement and a mounting frame 3 rotatably mounted above the support platform 1. The mounting frame 3 has several scanners 4 arranged from top to bottom for digitally acquiring three-dimensional image data of the model. The support platform 1 includes a frame 101, a closed-loop, operable motion belt 102, and a support plate 103 for supporting the motion belt 102. The upper side of the support plate 103 has an array of grooves 8, each groove containing a base block 9. A first sensor 10 for sensing the model's footsteps and thus locating the human body position is provided between the bottom of the groove 8 and the base block 9. Preferably, the first sensor 10 is a piezoresistive resistor (low cost). The upper side of the base block 9 is flush with the upper side of the support plate 103. The digital scanning device also includes a follow-up component 2 for driving the scanners 4 to move accordingly with the model based on the positioning signal from the corresponding first sensor 10, and a control backend for controlling the operation of the device.

[0029] It should be noted that the carrying platform 1 also includes a drive component (not shown in the figure) for driving the motion belt 102 to rotate. The drive component includes a motor, a drive roller, a driven roller, etc. (the motion belt 102 is wound around the drive roller and the driven roller). The drive roller is driven to rotate by the motor, thereby driving the motion belt 102 to rotate. This is the prior art and will not be described in detail here.

[0030] Models wearing the designed clothing move (i.e., walk and run) on the support platform 1. The movement belt 102 rotates at a corresponding speed (similar to a treadmill). The models' feet step on the base block 9, causing a change in the resistance of the corresponding first sensor 10. The control backend locates the model's position in real time based on the resistance change signal of the pressure-sensitive resistor (i.e., the first sensor 10) at the corresponding position. The control backend controls the follow-up component 2 to move according to the positioning signal of the first sensor 10, driving the scanner 4 to move accordingly in the X and Y directions. This keeps the model's position in the center area of ​​the scanner 4's circumferential movement trajectory, ensuring that the distance between the scanner 4 and the model is within a controllable fluctuation range during the circumferential scanning process. This guarantees that the generated animation model can accurately reflect the physical performance of the clothing in a real dynamic scene, which in turn helps designers to accurately judge the dynamic effect of the clothing and effectively correct the pattern.

[0031] Furthermore, a sealing element 11 is provided between the side of the base block 9 and the groove wall of the groove 8. Lubricant is usually applied between the moving belt 102 and the load-bearing plate 103 to reduce the coefficient of friction and ensure that the moving belt 102 operates smoothly and stably. The sealing element 11 is provided to prevent the lubricant from seeping into the groove 8.

[0032] Furthermore, the mounting bracket 3 is also equipped with a pan-tilt head 5 corresponding to the scanner 4. The scanner 4 is mounted on the corresponding pan-tilt head 5. Preferably, the pan-tilt head 5 is a three-axis electric pan-tilt head, which can adjust the horizontal / tilt scanning angle of the scanner 4 according to the scanning requirements.

[0033] Furthermore, the mounting frame 3 is also equipped with a background wall 6, which is positioned opposite to the scanner 4. The rotation of the mounting frame 3 drives the scanner 4 and the background wall 6 to move synchronously in a circumferential direction. By setting the background wall 6, a uniform and featureless background is provided for the scanning target (i.e., the model), simplifying the process of computer recognition and segmentation of the target object, effectively eliminating environmental interference, and ensuring that the software algorithm can accurately and efficiently reconstruct the three-dimensional model of the target object.

[0034] Please see Figure 3 and Figure 8In one embodiment of the present invention, the follower component 2 includes a first slide rail 201 parallel to the direction of the support platform 1 and a second slide rail 202 perpendicular to the direction of the support platform 1. The first slide rail 201 has a first lead screw 204 and a first slide block 203 slidably mounted thereon. The first lead screw 204 passes through the first slide block 203 in a threaded connection. The second slide rail 202 is fixedly connected to the first slide block 203. The second slide rail 202 has a second lead screw 207 and a second slide block 206 slidably mounted thereon. The second lead screw 207 passes through the second slide block 206 in a threaded connection. The mounting bracket 3 is rotatably mounted on the second slide block 206. The follower assembly 2 further includes a first drive member 205 and a second drive member 208 for driving the first lead screw 204 and the second lead screw 207 to rotate respectively (the first drive member 205 and the second drive member 208 are both servo motors, stepper motors, etc. in the prior art). According to the positioning signal feedback of the corresponding first sensor 10, the first drive member 205 and the second drive member 208 cooperate to drive the mounting frame 3 to move accordingly, that is, to drive the scanner 4 to move accordingly in the X and Y directions respectively, so that the position of the model is always controlled in the center area of ​​the circumferential motion trajectory of the scanner 4. The corresponding feedback control technology is the prior art and will not be described in detail here.

[0035] Furthermore, in this embodiment, the digital scanning device also includes a third driving component 7 (the driving component 7 is a servo motor, stepper motor, etc. in the prior art) for driving the mounting frame 3 to rotate. The third driving component 7 drives the mounting frame 3 to rotate, thereby driving several scanners 4 to move around the model in a circumferential direction to collect three-dimensional image data.

[0036] Please see Figures 5-7 as well as Figure 9 In one embodiment of the present invention, the motion belt 102 is divided into a constant speed zone 1021, an acceleration zone 1022 and a deceleration zone 1023 along its width direction. A second sensing element 12 for triggering the acceleration of the motion belt 102 is provided in the groove 8 perpendicular to the acceleration zone 1022, and a third sensing element 13 for triggering the deceleration of the motion belt 102 is provided in the groove 8 perpendicular to the deceleration zone 1023. Preferably, the second sensing element 12 and the third sensing element 13 are also varistors.

[0037] The motion belt 102 is provided with dividing lines 14 for models to identify the constant speed zone 1021, acceleration zone 1022 and deceleration zone 1023, so that models can move to the corresponding areas according to the scanning requirements.

[0038] In this embodiment, the model controls the speed of the motion belt 102 according to the scanning requirements (rather than being controlled by external personnel, to avoid the model losing balance and falling due to lack of preparation or coordination). If it is necessary to scan a dynamic 3D model of clothing at a faster (gradually increasing) speed, the model moves to the acceleration zone 1022 to trigger the second sensor 12, thereby continuously increasing the speed of the motion belt 102 (not exceeding the set safe operating speed value). After reaching the target speed, the model moves to the constant speed zone 1021. If it is necessary to scan the clothing at the continuously accelerating speed... For a dynamic 3D model in motion, the model can remain in the acceleration zone 1022. If it is necessary to scan a dynamic 3D model of clothing at a slower (from fast to slow) motion speed, the model moves to the deceleration zone 1022 to trigger the third sensor 13, thereby continuously slowing down the speed of the moving belt 102 (until it stops). After reaching the target speed, the model moves to the constant speed zone 1021. If it is necessary to scan a dynamic 3D model of clothing in a continuously decelerating motion state, the model can remain in the deceleration zone 1022, thus meeting diverse requirements for dynamic clothing scanning.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A digital scanning device for clothing pattern, comprising a bearing platform (1) for bearing a model person to move and a mounting frame (3) rotatably arranged above the bearing platform (1), wherein a plurality of scanners (4) for digital acquisition of three-dimensional image data of the model person are arranged on the mounting frame (3) from top to bottom. The support platform (1) includes a frame (101), a closed-loop and operable motion belt (102), and a support plate (103) for supporting the motion belt (102). The upper side of the support plate (103) is provided with grooves (8), and a base block (9) is provided in the groove (8). A first sensor (10) for sensing the footsteps of the model and thus locating the position of the human body is provided between the bottom of the groove (8) and the base block (9). The upper side of the base block (9) is flush with the upper side of the support plate (103). The digital scanning device also includes a follow-up component (2) for driving the scanner (4) to move with the model according to the positioning signal of the corresponding first sensor (10).

2. The digital scanning apparatus for garment pattern making according to claim 1, wherein, A sealing element (11) is provided between the side of the base block (9) and the groove wall of the groove (8).

3. The digital scanning device for garment pattern making according to claim 1, wherein, The mounting bracket (3) is also equipped with a pan-tilt unit (5) corresponding to the scanner (4), and the scanner (4) is mounted on the corresponding pan-tilt unit (5).

4. The digital scanning device for garment patterns according to claim 1, characterized in that, The mounting bracket (3) is also provided with a background wall (6), which is positioned directly opposite the scanner (4).

5. The digital scanning device for garment patterns according to claim 1, characterized in that, The follower assembly (2) includes a first slide rail (201) parallel to the direction of the support platform (1) and a second slide rail (202) perpendicular to the direction of the support platform (1). The first slide rail (201) is provided with a first lead screw (204) and a sliding block (203) is provided. The first lead screw (204) passes through the first slide block (203) in a threaded manner. The second slide rail (202) is fixedly connected to the first slide block (203). The second slide rail (202) is provided with a second lead screw (207) and a sliding block (206) is provided. The second lead screw (207) passes through the second slide block (206) in a threaded manner. The mounting bracket (3) is rotatably mounted on the second slide block (206). The follower assembly (2) also includes a first drive member (205) and a second drive member (208) for driving the first lead screw (204) and the second lead screw (207) to rotate respectively.

6. The digital scanning device for garment patterns according to claim 5, characterized in that, The digital scanning device also includes a third drive (7) for driving the mounting bracket (3) to rotate.

7. The digital scanning device for garment patterns according to claim 1, characterized in that, The motion belt (102) is divided into a constant speed zone (1021), an acceleration zone (1022) and a deceleration zone (1023) along its width direction. A second sensor (12) is provided in the groove (8) that is perpendicular to the acceleration zone (1022) to trigger the motion belt (102) to accelerate. A third sensor (13) is provided in the groove (8) that is perpendicular to the deceleration zone (1023) to trigger the motion belt (102) to decelerate.

8. The digital scanning device for garment patterns according to claim 7, characterized in that, The motion belt (102) is provided with dividing lines (14) for models to identify the constant speed zone (1021), acceleration zone (1022) and deceleration zone (1023).

Images