CN103340606B - Light switches human body three-dimensional scanning system and method for work thereof - Google Patents
Light switches human body three-dimensional scanning system and method for work thereof Download PDFInfo
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- CN103340606B CN103340606B CN201310303196.7A CN201310303196A CN103340606B CN 103340606 B CN103340606 B CN 103340606B CN 201310303196 A CN201310303196 A CN 201310303196A CN 103340606 B CN103340606 B CN 103340606B
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Abstract
The present invention is a kind of human body three-dimensional scanner device, and structure comprises: monocular structured light three-dimensional scanner, aluminium profile structure frame, optical path switcher, illuminator.Light for double machine structure switches body scanning system and also comprises hub.Light switches human body three-dimensional scanning system type two kinds, and one is that light switches standalone architecture human body three-dimensional scanning system, and one is that light switching double machine structure human body three retouches system.The somatic data scope that standalone architecture type gathers is the data that below human body neck arrives above knee, and the scope of data that double machine structure type gathers is Whole Body data.The feature of native system is that adopted light path reflection and light path switch.Its principle is that little illuminator and rotating shaft system are combined into optical path switcher, is changed by reflecting angle, the human body front and rear body image obtained successively is reflexed to image and catch and catch in device camera lens in large illuminator.Native system adopts LED light source, to human body without any injury.
Description
Technical field
The present invention is a kind of non-contact three-dimensional measuring instrument that relate to the technology such as optics, machinery, electronics, compunication, is the high technology equipment of a solution somatometry problem.
Background technology
3-D scanning technology be integrate light, mechanical, electrical, the advanced non-contact measuring technology of computer communication technology.The acquisition methods of three-dimensional information, be all be based upon Time-of-Flight, triangulation and phase measurement basis on.Time-of-Flight is the distance utilizing the flight time of light beam to measure measured point and reference plane, and because the unipolarity of laser is good, the laser that adopts as energy source more.Triangulation is based on principle of triangulation, by being radiated at the height of the eye point of the light on testee, the geometrical relationship determination object each point between subpoint and imaging point three, by scanner emission of light to body surface, angle between record incident illumination and reflected light, utilize the signal receiving reflections off objects in the CCD camera of the datum line other end, and the length of base between LASER Light Source and CCD is known after measured, the distance between the scanner asked by triangle geometry relation and object.The key technology of triangulation is to determine exit point, geometrical relationship between subpoint and imaging point three.Phase measurement be utilize grating fringe to affect by projected objects height phenomenon to measure the surface profile of three-dimensional body.When uniform grating upright projection is to flat surface, the grating fringe dividing equally distribution will be obtained; When grating fringe projects on highly vicissitudinous object, grating fringe then will deform, and in non-uniform Distribution, this is because projection grating modulate by the height of object.
3D solid scanning has a wide range of applications, and 3D anthropometric scanning, as an important branch in 3D solid scanning, medical institutions are carried out to medical research, carry out dress designing manufacture to apparel industry, and in films and television programs, carry out the Images uniting of virtual and real personage, all have important practical significance.In medical science, the customization of human body artificial limb; The research of mechanics of human motion, the human body three-dimensional data that can be obtained by 3D anthropometric scanning instrument carry out analytical applications.In apparel industry, gap value refers to the space between human body and clothing.And apparel modeling space carries out studying from the pore volume between clothing and human body just, therefore, gap value is in fact apparel modeling space.When gap value is distributed on human body skin equally, the simulation shape being shaped to human body of clothing; When artificial increase gap value or gap value be anisotropically distributed in body surface time, the moulding that clothing all can occur exaggeration to human body, even be out of shape.On the basis of Measurement accuracy human body, according to the main movement demand position of clothing, in the effective coverage of motion, add gap value, the quantity of motion wanted from spatially providing needed by human body, meanwhile, add the gap value needed for shape-designing, so just make clothing show the various spatial modelling forms adapting to different motion function.In modern designs, clothing space more should give prominence to function, fit fit, activity freely, do one's utmost display with the probability adapting to people's activity to greatest extent, require the range of activity not suppressing and do not retrain people, to comply with the life process of people, real significance realizes by " people the adapts to clothing " transformation to " people served by clothing ".And this transformation relies on the help of 3D anthropometric scanning instrument very much.In addition in animation video display industry, during to animation role modelling, also can obtaining anthropometric dummy true to nature according to human body three-dimensional scanner scanning, to save time and more close to truly compared with starting creation.
Current human body three-dimensional scanner is divided into two classes according to form of light source difference, and a class is laser body-scanner, and another kind of is structured light body-scanner.But because use is different with structure, every anthropoid scanner, has various ways again.But it is generally acknowledged that laser has injury to human body, the comparatively safe performance of the anthropoid scanner of structured light is higher.And laser scanner will move to realize scanning work mostly in frame for movement, scanning speed is slow, and the scanning of the anthropoid scanner of structured light is relatively quick, is more suitable for the scanning work of somatic data.
Summary of the invention
The present invention is that a light switches human body three-dimensional scanning system, integrates light, mechanical, electrical, computer communication technology.Object is the measurement problem solving human body three-dimensional data.Clothing industry can be applied to, medical research, animation media industry etc.
The present invention is the invention of technology based on monocular structured light three-dimensional scanner, what monocular structured light three-dimensional scanner adopted is time domain coding structured light technique, known grating fringe light is got on tested human body, sequence grating fringe pattern is obtained by image capturor, and resolve striped Curvature varying according to phase method and trigonometry, accurately calculate each pixel space coordinates dot information corresponding on human body surface and texture RGB (BW) information.Under the document form being finally called XYZ and BMP with file suffixes is stored in computer acquiescence operating path.Wherein (X, Y, Z) point coordinates information of XYZ file storage data, RGB or the BW colouring information of BMP file picture.The projection ray of the monocular structured light scanner equipment adopted in invention is LED cold light source, and LED light source is to human body skin without any injury, and therefore the safety of native system is higher.
The employing of illuminator realizes according to light path principle of reflection figure, if light switches body scanning system adopt stand-alone device scanning, the data collected are human body half body data, and at this time overall structure only needs two groups of illuminators.Putting position carries out according to optical schematic diagram scheme, just in time fixes an illuminator just above at human body, and range of exposures is below more than human knee to human body neck; Then after human body, fix an illuminator, this illuminator and first surface formed objects, and be that symmetrical centre and first surface symmetry are fixing with axis.When light switching body scanning system adopts double machine structure to be combined into the 3-D scanning work of pedestrian's body time, the somatic data collected is whole body, and at this time overall structure needs four sides illuminator.Human body dead ahead fixes upper and lower two groups of illuminators, and upper and lower two groups of illuminators are fixed at the human body back side.Putting position is take axis as symmetrical centre equally, and four minute surfaces are symmetrical fixing between two.Illuminator has coordinated light path reflective operation with little illuminator built-in in optical path switcher structure, is the necessary structure that monocular structure light scan head gathers three-dimensional data.Shadow figure projects on human body surface by light path two secondary reflection, completes light projector work; Body image to be caught by image through two secondary reflections and is caught device and capture, and completes capture work.Such light path mirroring scheme have compressed the focusing distance of unit imaging, makes such body-scanner take up an area space and diminishes.
Optical path switcher structure of the present invention by built-in little illuminator, rotating shaft, supporting framework, stopping means, etc. mechanical structured member combine.The principle of light switching construction design is formed by light reflection principle, and as the expression of Fig. 5 light path principle of reflection figure, electronics stripe information, by two secondary reflections of reflective mirror, projects on human body surface by the light projector assembly of probe; The image of 3-D scanning head is caught and is caught the two secondary reflections acquisition image informations of device by reflective mirror.The method that light path switches is: built-in little illuminator is rotated to an angle by optical path switcher, obtains human body predecessor data; Then the built-in little illuminator of optical path switcher rotates to another one angle, and body data after acquisition human body, complete the shooting work of whole somatic data thus.The employing of optical path switching method, makes stand-alone device after collection completes human body predecessor data, again can gather the data of body after human body through light path switching.Such optical path switching method, decreases the use amount of probe, have compressed hardware cost, and the function that two-shipper could be realized becomes unit and completes; And the effect that four machines could realize, complete with two-shipper.Floor space that light switches human body three-dimensional scanning system diminishes a lot, and the floor space of whole equipment, within 2 square metres, is applicable to clothing StoreFront and uses very much.
Aluminum alloy junction framework in invention adopts No. 6067 aluminium profile, and effect is the angle between fixing each minute surface, and its overall dimensions are long about 1.5 meters, wide about 1.5 meters, high about 2 meters.Its structure shape design is firm, makes the angle between reflective mirror, optical path switcher, 3-D scanning head meet the design of optical reflection principle, and enhances the stability of relative angle between each parts.The dismounting of aluminum alloy junction framework is simple, and the periphery of structure-steel framing can add cloth canopy, light is switched inner self-assembling formation one the independently space of body scanning system.
The light of double machine structure switches body scanning system, needs in order to hub device.In invention, the design of hub completes the collective communication task of two structural light three-dimensional scanning devices and computer port, hub one side and computer, and another side and two monocular structured light equipment establish and exports input and contact.Receive two device signal set are that a bars mails to computer by hub, also receive from computer signal are divided into two different machine instructions and are sent on monocular structure light scan equipment.
Accompanying drawing explanation
Fig. 1 light switches human body three-dimensional scanning system (stand-alone configuration) schematic top view
(1) optical path switcher (2) monocular structured light scanner (3) illuminator (4) aluminum alloy junction framework
Fig. 2 light switches human body three-dimensional scanning system external form schematic diagram
Fig. 3 light switches human body three-dimensional scanning system (two-shipper configuration) schematic top view
(1) optical path switcher (2) monocular structured light scanner (3) illuminator (4) aluminum alloy junction framework (5) hub
Fig. 4 light switches human body three-dimensional scanning system (two-shipper configuration) main diagram
(1) optical path switcher (2) monocular structured light scanner (3) illuminator (4) aluminum alloy junction framework (5) hub
Fig. 5 optical schematic diagram
Detailed description of the invention
The structure switching human body three-dimensional scanning system with reference to this light of Fig. 1 comprises (1) optical path switcher (2) monocular structured light scanner, (3) illuminator (4) aluminum alloy junction framework.The structure that light with reference to the configuration of Fig. 3 two-shipper switches human body three-dimensional scanning system comprises (1) optical path switcher (2) separate unit structured light scanner, (3) illuminator (4) aluminum alloy junction framework (5) hub.It is the requirement that (1) optical path switcher, (2) monocular structured light scanner, (3) illuminator gather according to angle and Jiao be fixed on (4) aluminum alloy junction framework that the light of stand-alone configuration switches the concrete assembling scheme of human body three-dimensional scanning system.The concrete assembling scheme that two-shipper configuration light cuts human body three-dimensional scanning system is the requirement (1) optical path switcher, (2) monocular structured light scanner, (3) illuminator gathered according to angle and Jiao, is fixed on (4) aluminum alloy junction framework.Then by the order wire set of two (2) monocular structured light scanner on (5) hub, drawn by hub and lead to the order wire of computer.
When device power supply (DPS) is opened, computer communicates normally with monocular structured light scanner, and after equipment imaging function is debugged, scanning work just can carry out.Detailed description of the invention is, computer sends a scan command, (1) the built-in little illuminator of optical path switcher rotates to an angle, and (2) monocular structured light scanner realizes light projector through (3) illuminator and two secondary reflections of the built-in little illuminator of (1) optical path switcher, work of taking pictures obtains one side data.After completing, (1) another one angle changed to by the little illuminator that optical path switcher is built-in again rotary cutting, and two secondary reflections that (2) monocular structured light scanner passes through (3) illuminator and the built-in little illuminator of (1) optical path switcher again realize light projector, work of taking pictures obtains another side data.
Light for two-shipper configuration switches human body three-dimensional scanning system, detailed description of the invention after energising is identical in light switches and light projector is taken pictures, different is, and two-shipper is configured in when computer sends instruction, be first distribute to two (2) monocular structured light scanner by (5) hub, and the data having scanned rear acquisition are also by the transfer function of (5) hub realization to computer.
Claims (5)
1. light switches a human body three-dimensional scanning system, it is characterized in that, comprising: optical path switcher (1), monocular structured light scanner (2), illuminator (3), aluminum alloy junction framework (4); Wherein, described illuminator comprises: the first illuminator, be fixed on human body just before, range of exposures is more than human knee below human body neck; Second illuminator, be fixed on after human body, itself and described first illuminator formed objects, and be that symmetrical centre and described first illuminator symmetry are fixing with axis, described monocular structured light scanner is one, by more than the light path scanning human knee of described optical path switcher, described first illuminator and described second illuminator arriving below human body neck.
2. light switches a human body three-dimensional scanning system, it is characterized in that, comprising: optical path switcher (1), monocular structured light scanner (2), illuminator (3), aluminum alloy junction framework (4); Wherein, described illuminator comprises: the first illuminator be arranged above and below and the 3rd illuminator, be fixed on human body just before, range of exposures is Whole Body; The second illuminator be arranged above and below and the 4th illuminator, be fixed on the back side, and putting position take axis as symmetrical centre, and four minute surfaces are symmetrical fixing between two; Described monocular structured light scanner is two, by the light path scanning Whole Body of described optical path switcher, described first illuminator, described second illuminator, described 3rd illuminator and described 4th illuminator.
3. light according to claim 1 and 2 switches human body three-dimensional scanning system, it is characterized in that: adopt described aluminum alloy junction framework to fix described optical path switcher, described monocular structured light scanner and described illuminator, such that described aluminum alloy junction framework fixes described optical path switcher, angle between described monocular structured light scanner and described illuminator meets default optical reflection light path;
The overall dimensions of described aluminum alloy junction framework are long 1.5 meters, wide 1.5 meters, high 2 meters, and floor space is within 2.5 square metres.
4. the light of any one of claim 1-3 switches the method for work of human body three-dimensional scanning system, it is characterized in that, comprising:
Shadow figure projects on human body surface by light path two secondary reflection;
Body image captures through two secondary reflection coverlet order structured light scanner;
The built-in little illuminator of described optical path switcher rotates to an angle, obtains one side data; The built-in little illuminator of described optical path switcher rotates to another angle, obtains another side data.
5. method of work according to claim 4, it is characterized in that, computer sends a scan command, the built-in little illuminator of described optical path switcher rotates to an angle, and described monocular structured light scanner realizes light projector through two secondary reflections of described illuminator and the built-in little illuminator of described optical path switcher, work of taking pictures obtains one side data; After completing, another one angle changed to by the built-in little illuminator of described optical path switcher again rotary cutting, and described monocular structured light scanner realizes light projector through two secondary reflections of described illuminator and the built-in little illuminator of described optical path switcher again, work of taking pictures obtains another side data.
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| CN104287262A (en) * | 2014-10-17 | 2015-01-21 | 上海衣得体信息科技有限公司 | Three-dimensional body scanner |
| CN105615093A (en) * | 2014-11-04 | 2016-06-01 | 北京博维恒信科技发展有限公司 | Mannequin manufacture method |
| CN107811331A (en) * | 2017-11-08 | 2018-03-20 | 季孝伟 | A kind of manufacture method of 3D frivolous ventilatives athletic undergarment |
| CN108560956A (en) * | 2018-04-24 | 2018-09-21 | 北京医帮管家网络科技有限公司 | A kind of hospital's preoperative and postoperative portrait data collecting instrument |
| CN109470141B (en) * | 2018-11-17 | 2021-03-16 | 先临三维科技股份有限公司 | Scanning system and method, scanning platform, computer device and readable storage medium |
| CN111536922B (en) * | 2020-04-13 | 2022-05-13 | 广东工业大学 | Fitting platform based on three-dimensional rotation scanning |
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