CN204618240U - Human body head spatial digitizer - Google Patents
Human body head spatial digitizer Download PDFInfo
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- CN204618240U CN204618240U CN201520222489.7U CN201520222489U CN204618240U CN 204618240 U CN204618240 U CN 204618240U CN 201520222489 U CN201520222489 U CN 201520222489U CN 204618240 U CN204618240 U CN 204618240U
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Abstract
This utility model relates to body scanning techniques field, provides human body head spatial digitizer, comprising: framework, glass plate, driving device, support, camera and laser instrument, and glass plate, driving device, support are all arranged on framework; Glass plate is positioned at above driving device; Driving device comprises servo drive motor, slide rail, screw mandrel and limit switch, and slide rail is installed on the bottom of framework, and limit switch, servo drive motor are installed on slide rail, and servo drive motor is connected with screw mandrel; Support comprises crossbeam and 2 root posts, is placed on screw mandrel bottom crossbeam by bearing, and 2 root posts are installed on 2 ends of crossbeam; Laser instrument is more than 3 or 3, is installed on 2 root posts and crossbeam; Camera is more than 4 or 4, is installed on 2 root posts and crossbeam, is connected with external computer by rotating shaft.This utility model can measure head form, curvilinear characteristic, has that measuring speed is fast, error is little, workload is few, install simple, measure accurate advantage.
Description
Technical field
This utility model relates to body scanning techniques field, particularly human body head spatial digitizer.
Background technology
From technical development, human body measurement technology can be divided into traditional human body measurement technology and three-dimensional human body measurement technology.
Conventional measurement techniques with tape, anthropometer, goniometer, distance finder, type variable human body section gauge instrument etc. for main tool, directly can measure body surface length and the shape of cross section of partes corporis humani position, use instrument is simple, easy to operate, is therefore used for a long time in rag trade.But due to the measurement that these methods are all contacts, often make measured feel poverty-stricken or tired, or not skillfully cause measurement error because of gauger's technology.Because human body has complicated shape, more deep research cannot be carried out.Although traditional measuring method still widely uses at present, its weak point obviously, cannot measure human figure, curvilinear characteristic, and measuring speed is slow, and workload is large, and error is large.
Along with the technology such as calculating, the Internet, multimedia, virtual reality and rapid prototype manufacturing develop fast, the high accuracy of product, high efficiency, will give the development of each industry, bring powerful vitality and flourishing market life.
In the market without any a three dimensional device automatically can measuring human body head, this utility model can be applied in medical industry, as human body head corrects diagnosis, in the fields such as space helmet customization.
Therefore, one can measure head form, curvilinear characteristic to body scanning techniques field urgent need, measuring speed is fast, error is little, workload is few, installs simply, measures accurate human body head spatial digitizer.
Summary of the invention
This utility model provides human body head spatial digitizer, and technical scheme is as follows:
Human body head spatial digitizer, comprising: framework, glass plate, driving device, support, camera and laser instrument, and glass plate, driving device, support are all arranged on framework;
Glass plate, is positioned at above driving device;
Driving device, comprises servo drive motor, slide rail, screw mandrel and limit switch, and slide rail is installed on the bottom of framework, and limit switch, servo drive motor are all installed on slide rail, and servo drive motor is connected with screw mandrel;
Support, comprises crossbeam and 2 root posts, is placed on screw mandrel bottom crossbeam by bearing, 2 ends of what 2 root posts were vertical be installed on crossbeam;
Laser instrument is more than 3 or 3, is installed on 2 root posts and crossbeam respectively;
Camera is more than 4 or 4, is installed on 2 root posts and crossbeam, is connected with external computer respectively by rotating shaft.
Preferably, in above-mentioned human body head spatial digitizer, laser instrument is a word line laser device.
Preferably, in above-mentioned human body head spatial digitizer, camera is CCD industrial camera.
Preferably, in above-mentioned human body head spatial digitizer, the angle of the lasing central line of laser instrument and the optical center line of camera is 8-35 °.
Preferably, in above-mentioned human body head spatial digitizer, the quantity of one word line laser device is 4, the quantity of CCD industrial camera is 4,2 word line laser device lay respectively at the top of 2 root posts, remain 2 word line laser device and become with a word line laser device on 2 root post tops that center is axisymmetric to lay respectively on crossbeam, 2 CCD industrial cameras are positioned at 2 root post tops respectively by rotating shaft, remain 2 CCD industrial cameras and become with the CCD industrial camera on 2 root post tops that center is axisymmetric to be positioned on crossbeam respectively by rotating shaft.
Preferably, in above-mentioned human body head spatial digitizer, the quantity of one word line laser device is 4, the quantity of CCD industrial camera is 8,2 word line laser device lay respectively at the top of 2 root posts, remain 2 word line laser device and become with a word line laser device on 2 root post tops that center is axisymmetric to lay respectively on crossbeam, 4 CCD industrial cameras are positioned at 2 root post tops respectively by rotating shaft, remain 4 CCD industrial cameras and become with the CCD industrial camera on 2 root post tops that center is axisymmetric to be positioned on crossbeam respectively by rotating shaft.
Preferably, in above-mentioned human body head spatial digitizer, framework is square, hexagon, rectangle or circle.
The beneficial effects of the utility model are:
1, this utility model achieves three-dimensional head scanning, three-dimensional human head is measured to be had accurately, at a high speed and the advantage that error is little, concordance is high compared with traditional human body head measuring technique, the head form, curvilinear characteristic etc. that cannot measure for traditional method also can be measured accurately, only simple operations is needed during measurement, do not need the Professional knowledge of traditional measurement method, realize head measurement, saved time, money, decreased error.
2, this utility model is taken with the use of to human body head by camera and laser instrument, extracts head D coordinates value, camera and laser instrument by certain angle with the use of, data acquisition is more complete, and installation is more prone to, and operability is stronger.
3, this utility model is provided with laser instrument in the position of camera, can realize the overall laser-bounce to head, and without dead angle, the photographic quality making it take out is higher, and data more easily identify, improves accuracy.
4, after the three-dimensional data that in this utility model, camera extracts passes to external computer, external computer transforms existing data, obtains the three-dimensional data after modeling, and then realizes head three-dimensional modeling, more vivid, directly perceived.
Accompanying drawing explanation
This utility model is described in detail below in conjunction with the drawings and specific embodiments:
Fig. 1 is the structural representation of this utility model human body head spatial digitizer embodiment 1.
Fig. 2 is the structural representation of this utility model human body head spatial digitizer embodiment 2.
Wherein, the Reference numeral in Fig. 1-2 and the corresponding relation between component names are:
Framework 1, glass plate 2, driving device 3, servo drive motor 31, slide rail 32, screw mandrel 33, limit switch 34, support 4, crossbeam 41, column 42, camera 5, rotating shaft 51, laser instrument 6.
Detailed description of the invention
Core of the present utility model, for providing a kind of human body head spatial digitizer, solves and cannot measure head form, curvilinear characteristic, and measuring speed is slow, and workload is large, the problem that error is large.
In order to this utility model technology is realized measure, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth this utility model further.
Embodiment 1:
Fig. 1 is the structural representation of this utility model human body head spatial digitizer, as shown in Figure 1, this utility model provides human body head spatial digitizer, comprise: framework 1, glass plate 2, driving device 3, support 4, camera 5 and laser instrument 6, and glass plate 2, driving device 3, support 4 are all arranged on framework 1; Glass plate 2, is positioned at above driving device 3; Driving device 3, comprise servo drive motor 31, slide rail 32, screw mandrel 33 and limit switch 34, slide rail 32 is installed on the bottom of framework 1, and limit switch 34, servo drive motor 31 are all installed on slide rail 32, and servo drive motor 31 is connected with screw mandrel 33; Support 4, comprises crossbeam 41 and 2 root post 42, is placed on screw mandrel 33 bottom crossbeam 41 by bearing, 2 ends of what 2 root posts 42 were vertical be installed on crossbeam 41; Laser instrument 6 is more than 3 or 3, is installed on 2 root posts 42 and crossbeam 41 respectively; Camera 5 is more than 4 or 4, is installed on 2 root posts 42 and crossbeam 41, is connected with external computer respectively by rotating shaft 51.
Preferably, in the present embodiment, the angle of the lasing central line of laser instrument and the optical center line of camera is 8-35 °.
Preferably, in the present embodiment, laser instrument 6 is a word line laser device, camera 5 is CCD industrial camera, the quantity of one word line laser device 6 is 4, the quantity of CCD industrial camera 5 is 4, 2 word line laser device 6 lay respectively at the top of 2 root posts 42, remaining 2 word line laser device 6 lays respectively on crossbeam 41 with a word line laser device 6 one-tenth centers on 2 root post 42 tops are axisymmetric, 2 CCD industrial cameras 5 are positioned at 2 root post 42 tops respectively by rotating shaft 51, remain 2 CCD industrial cameras 5 to be positioned on crossbeam respectively by rotating shaft 51 with CCD industrial camera 5 one-tenth centers on 2 root post 42 tops are axisymmetric.
Embodiment 2:
Fig. 2 is the structural representation of this utility model human body head spatial digitizer embodiment 2, on the basis of embodiment 1, in the present embodiment, the quantity of a word line laser device 6 is 4, the quantity of CCD industrial camera 5 is 8, 2 word line laser device 6 lay respectively at the top of 2 root posts 42, remaining 2 word line laser device 6 lays respectively on crossbeam 41 with a word line laser device 6 one-tenth centers on 2 root post 42 tops are axisymmetric, 4 CCD industrial cameras 5 are positioned at 2 root post 42 tops respectively by rotating shaft 51, remaining 4 CCD industrial cameras 5 is positioned on crossbeam 41 with CCD industrial camera 5 one-tenth centers on 2 root post 42 tops are axisymmetric respectively by rotating shaft 51, the quantity of CCD industrial camera 5 is 8, and framework is square, hexagon, rectangle or circle.
The three-dimensional modeling method of human body head spatial digitizer, comprises the steps:
Step one, requires to be lain low on glass plate by the people scanned, opens all cameras, laser instrument and servo drive motor;
Step 2, multiple laser instrument is simultaneously to head Emission Lasers, and laser is received and imaging by CCD industrial camera after reflections off objects;
Step 3, servo drive motor drives screw mandrel to rotate, the support be positioned on screw mandrel drives CCD industrial camera and laser instrument along guide rail movement, when support motion is to the limit-switch positions be positioned on slide rail, prove that human body head scanning completes, and then support negative side automatically resets left motion, the collection of CCD industrial camera completes the image of whole head;
Step 4, image transfer is given external computer by CCD industrial camera, external computer processes image, after image procossing, laser stripe place pixel is identified, and the coordinate of three dimensions point corresponding to being gone out with these pixels under static world coordinate system by the optic plane equations demarcated in advance and CCD industrial camera inverse, concrete steps are:
According to desirable pin-point model, camera coordinates system spatial point can be obtained
with its image coordinate
corresponding relation as follows:
，
Wherein,
for camera Intrinsic Matrix;
,
all represent in units of pixel, the focal length of CCD camera Aspect Ratio,
,
all represent picture centre coordinate;
Following two constraintss can be obtained from national forest park in Xiaokeng:
，
Further hypothesis laser plane equation under camera coordinates system is:
, wherein a, b represent respectively
,
coefficient, d is constant, and then obtains the one-to-one relationship of object dimensional coordinate from pixel coordinate to camera coordinates system:
In laser scanning process, camera is along with motion, and therefore need under representing that point coordinates in camera coordinates system is transformed into a static world coordinate system, just can obtain the correct outline data of object, this conversion can represent with rigid body translation R, t, namely
;
Wherein, R is the orthogonal spin matrix of unit, and t is translation vector,
represent the coordinate of the three dimensions point that pixel is corresponding under static world coordinate system,
;
Step 5, external computer is spliced three dimensions point by the spatial relationship of demarcating in advance, obtains human body head three-dimensional modeling.
Should be appreciated that the noun of locality all the regular job custom of binding operation person and Figure of description set up, their appearance should not affect protection domain of the present utility model.
This utility model achieves three-dimensional head scanning, three-dimensional human head is measured to be had accurately, at a high speed and the advantage that error is little, concordance is high compared with traditional human body head measuring technique, the head form, curvilinear characteristic etc. that cannot measure for traditional method also can be measured accurately, only simple operations is needed during measurement, do not need the Professional knowledge of traditional measurement method, realize head measurement, saved time, money, decreased error.
This utility model is taken with the use of to human body head by camera and laser instrument, extracts head D coordinates value, camera and laser instrument by certain angle with the use of, data acquisition is more complete, and installation is more prone to, and operability is stronger.
This utility model is provided with laser instrument in the position of camera, can realize the overall laser-bounce to head, and without dead angle, the photographic quality making it take out is higher, and data more easily identify, improves accuracy.
After the three-dimensional data that in this utility model, camera extracts passes to external computer, external computer transforms existing data, obtains the three-dimensional data after modeling, and then realizes head three-dimensional modeling, more vivid, directly perceived.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technical staff of the industry should understand; this utility model is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present utility model; under the prerequisite not departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed this utility model.The claimed scope of this utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. human body head spatial digitizer, is characterized in that, comprising: framework, glass plate, driving device, support, camera and laser instrument, and described glass plate, driving device, support are all installed on said frame;
Described glass plate, is positioned at above driving device;
Described driving device, comprises servo drive motor, slide rail, screw mandrel and limit switch, and described slide rail is installed on the bottom of framework, and described limit switch, servo drive motor are all installed on slide rail, and described servo drive motor is connected with screw mandrel;
Described support, comprises crossbeam and 2 root posts, is placed on screw mandrel bottom described crossbeam by bearing, 2 ends being installed on crossbeam of 2 described uprights vertical;
Described laser instrument is more than 3 or 2, is installed on 2 described columns and crossbeam respectively;
Described camera is more than 4 or 4, is installed on 2 described columns and crossbeam, is connected with external computer respectively by rotating shaft.
2. human body head spatial digitizer according to claim 1, is characterized in that, described laser instrument is a word line laser device.
3. human body head spatial digitizer according to claim 1, is characterized in that, described camera is CCD industrial camera.
4. the human body head spatial digitizer according to Claims 2 or 3, is characterized in that, the angle of the lasing central line of described laser instrument and the optical center line of camera is 8-35 °.
5. human body head spatial digitizer according to claim 4, it is characterized in that, the quantity of a described word line laser device is 4, the quantity of described CCD industrial camera is 4, 2 described word line laser device lay respectively at the top of 2 root posts, remain 2 described word line laser device and become with a word line laser device on 2 root post tops that center is axisymmetric to lay respectively on crossbeam, 2 described CCD industrial cameras are positioned at 2 root post tops respectively by rotating shaft, remain 2 described CCD industrial cameras and become with the CCD industrial camera on 2 root post tops that center is axisymmetric to be positioned on crossbeam respectively by rotating shaft.
6. human body head spatial digitizer according to claim 4, it is characterized in that, the quantity of a described word line laser device is 4, the quantity of described CCD industrial camera is 8, 2 described word line laser device lay respectively at the top of 2 root posts, remain 2 described word line laser device and become with a word line laser device on 2 root post tops that center is axisymmetric to lay respectively on crossbeam, 4 described CCD industrial cameras are positioned at 2 root post tops respectively by rotating shaft, remain 4 described CCD industrial cameras and become with the CCD industrial camera on 2 root post tops that center is axisymmetric to be positioned on crossbeam respectively by rotating shaft.
7. human body head spatial digitizer according to claim 1, is characterized in that, described framework is square, hexagon, rectangle or circle.
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| CN201520222489.7U CN204618240U (en) | 2015-04-14 | 2015-04-14 | Human body head spatial digitizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670257A (en) * | 2018-06-04 | 2018-10-19 | 浙江树人学院 | A kind of panoramic human body three-dimensional scanning means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108670257A (en) * | 2018-06-04 | 2018-10-19 | 浙江树人学院 | A kind of panoramic human body three-dimensional scanning means |
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Effective date of registration: 20191217 Address after: 214000 room 2011, No.22, wisdom road, Huishan Economic Development Zone, Wuxi City, Jiangsu Province Patentee after: Yimaisi Intelligent Technology (Wuxi) Co., Ltd Address before: 201400 No. 33 Jianghai South Road, South Bridge Town, Shanghai, Fengxian District Patentee before: Jingdi Measurement Technology (Shanghai) Co., Ltd. |