CN211477034U

CN211477034U - Foot shape 3D scanner for orthopedics

Info

Publication number: CN211477034U
Application number: CN202020375924.0U
Authority: CN
Inventors: 陈宣煌; 林海滨; 张国栋; 蔡涵华; 郑锋; 陈旭; 吴长福
Original assignee: Affiliated Hospital Of Putian University Putian No 2 Hospital
Current assignee: Affiliated Hospital Of Putian University Putian No 2 Hospital
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-09-11
Anticipated expiration: 2030-03-23

Abstract

The utility model provides a foot shape 3D scanner for orthopedics, including field device and backstage device, field device and backstage device pass through communication cable connection, and field device includes first laser source, second CMOS camera, second laser source, first CMOS camera and scanning device, and first laser source, second CMOS camera, second laser source and first CMOS camera connect scanning device respectively, and the backstage device includes scanning equipment connecting device, data acquisition unit, sole data unit, sufficient data unit, display element and monitor cell, and scanning equipment connecting device connects data acquisition unit, the utility model relates to a rationally, convenient to use, easy and simple to handle, friendly, the interface is fast, and the error is little, can realize the categorised function of foot type, has high recognition rate in the classification of arch of foot type and forefoot type.

Description

Foot shape 3D scanner for orthopedics

Technical Field

The utility model relates to a 3D scanner equipment field, concretely relates to foot shape 3D scanner for orthopedics.

Background

The purpose of the 3D scanner is to create a geometric surface of an object, the points can be interpolated into the surface shape of the object, the denser point cloud can create a more accurate model, if the scanner can obtain the surface color, the more accurate model can be pasted on the reconstructed surface, the 3D scanner can be simulated as a camera, the sight line range of the 3D scanner shows a cone shape, and the information collection is limited within a certain range.

The existing non-contact foot type parameter measuring method has high measuring precision, reliability and high intelligent degree, but most of three-dimensional foot type measuring devices in the market at present adopt a plurality of CCD image sensors, the price is relatively high, and the foot type parameter items which can be collected are limited, so that the method is not beneficial to wide application in scientific and technological development and production.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned not enough, provide an orthopedics is with foot shape 3D scanner, the utility model discloses an aim at realizes through following technical scheme:

the utility model provides a foot shape 3D scanner for orthopedics, including field device and backstage device, field device and backstage device pass through communication cable connection, field device includes first laser source, second CMOS camera, the second laser source, first CMOS camera and scanning device, first laser source, second CMOS camera, scanning device is connected respectively to second laser source and first CMOS camera, the backstage device includes scanning equipment connecting device, data acquisition unit, sole data unit, sufficient face data unit, display element and monitoring unit, scanning equipment connecting device connects data acquisition unit, data acquisition unit connects sole data unit and sufficient face data unit respectively, sufficient face data unit connects display element, the display element connects the monitoring unit.

The first laser source and the second laser source are both line-structured light sources, and light beams of the first laser source and the second laser source are on the same plane.

The first CMOS camera and the second CMOS camera are respectively arranged at two ends of the scanning device.

The first laser source and the second laser source are respectively installed at the left and right sides of the scanning device.

The utility model discloses following profitable effect has:

the utility model relates to a rationally, convenient to use, easy and simple to handle, friendly, the response speed in interface are fast, and the error is little, can realize the categorised function of foot type, has high recognition rate in the classification of arch of foot type and forefoot type.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a hardware structure diagram of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown in fig. 1 and 2, a foot-shaped 3D scanner for orthopedics department comprises a field device and a background device 6, wherein the field device and the background device are connected through a communication cable, the field device comprises a first laser source 1, a second CMOS camera 2, a second laser source 3, a first CMOS camera 4 and a scanning device 5, the first laser source 1, the second CMOS camera 2, the second laser source 3 and the first CMOS camera 4 are respectively connected with the scanning device 5, the background device 6 comprises a scanning device connecting device 7, a data acquisition unit 8, a sole data unit 9, a foot surface data unit 10, a display unit 11 and a monitoring unit 12, the scanning device connecting device 7 is connected with the data acquisition unit 8, the data acquisition unit 8 is respectively connected with the sole data unit 9 and the foot surface data unit 10, the foot surface data unit 10 is connected with the display unit 11, and the display unit 11 is connected with the monitoring unit 12.

The two CMOS cameras are respectively arranged on two sides of the platform and are perpendicular to a scanning plane formed by the pair of line-structured laser sources. The guide rail keeps constant motion under the drive of the motor, the linear structure laser plane is driven to move to scan the whole foot, and the CMOS camera continuously shoots the laser scanning image of the foot surface to obtain the profile information of the whole foot surface. The scanning mechanism is arranged below the platform to acquire a foot bottom scanning picture. The toughened glass plate is arranged above the system platform, and has the size of 20cm multiplied by 40cm and the thickness of 8 mm. Through calculation, the toughened glass can bear the pressure of more than 200kg, and the system bearing strength requirement when personnel stand for measurement is met.

The working principle is as follows: the two line structure laser sources are positioned at two sides of the measured foot, and through calibration, light beams of the two laser sources are positioned on the same plane and are vertical to an optical axis of the CMOS camera for receiving reflected light beams of the measured foot. The two CMOS cameras are respectively arranged at two ends of the platform and are arranged in a diagonal manner, and information on two sides of the measured foot is respectively acquired by utilizing parallax. In the space, the measured foot, the linear structure laser source and the camera form a triangular relation, and the three-dimensional structure surface type of the measured foot generates spatial modulation on the light of the laser source, so that the imaging angle among the three is changed. The three-dimensional point cloud information of the foot surface can be obtained by determining the positions of the shooting reflected light beams and the geometrical parameters of the system light path. The plantar scanning device scans and obtains a plantar image, and an image processing algorithm is applied to extract a plantar contour region and a plantar pressure deformation region. And selecting a coordinate system in which the sole image is located as a world coordinate system, converting the light band image shot by the CMOSl and the CMOS2 into the world coordinate system through coordinates, and calculating to obtain foot shape parameters such as foot length, foot width, instep height, metatarsophalangeal height and the like.

Claims

1. The utility model provides an orthopedics is with foot shape 3D scanner, includes field device and backstage device, its characterized in that: the field device is connected with the background device through a communication cable, the field device comprises a first laser source, a second CMOS camera, a second laser source, a first CMOS camera and a scanning device, the first laser source, the second CMOS camera, the second laser source and the first CMOS camera are respectively connected with the scanning device, the background device comprises a scanning device connecting device, a data acquisition unit, a sole data unit, a foot surface data unit, a display unit and a monitoring unit, the scanning device connecting device is connected with the data acquisition unit, the data acquisition unit is respectively connected with the sole data unit and the foot surface data unit, the foot surface data unit is connected with the display unit, and the display unit is connected with the monitoring unit.

2. The orthopedic foot-shaped 3D scanner according to claim 1, characterized in that: the first laser source and the second laser source are both line-structured light sources, and light beams of the first laser source and the second laser source are on the same plane.

3. The orthopedic foot-shaped 3D scanner according to claim 1, characterized in that: the first CMOS camera and the second CMOS camera are respectively arranged at two ends of the scanning device.

4. The orthopedic foot-shaped 3D scanner according to claim 1, characterized in that: the first laser source and the second laser source are respectively arranged at the left side and the right side of the scanning device.