CN105571521B - The laser three-D detection device and its detection method realized using diffraction optical element - Google Patents
The laser three-D detection device and its detection method realized using diffraction optical element Download PDFInfo
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- CN105571521B CN105571521B CN201510913077.2A CN201510913077A CN105571521B CN 105571521 B CN105571521 B CN 105571521B CN 201510913077 A CN201510913077 A CN 201510913077A CN 105571521 B CN105571521 B CN 105571521B
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- light
- mould group
- diffraction
- optical encoding
- structure light
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on the object
Abstract
The invention discloses a kind of laser three-D detection devices realized using diffraction optical element, including infrared light supply mould group, structure light optical encoding diffraction optical element, infrared image acquisition unit and data processing unit；The structure light optical encoding diffraction optical element is set to infrared light supply mould group and goes out at light, assembles diffraction optics mould group；Diffraction optics mould group irradiates structure light optical encoding, which exposes to measurand, and the three-dimensional appearance of measurand is modulated the spatial distribution of structure light optical encoding, spatially forms new optical encoding distribution；The infrared image acquisition unit collects the distributed data of optical encoding；Data processing unit carries out data analysis, operation, the three-D profile pattern of available testee.It no longer needs to be equipped with the controllers such as touch screen, handle, remote controler or rocking bar the invention enables contactless operation equipment, operator can operate completely to equipment with body action.
Description
Technical field
The invention belongs to photoelectric communication field more particularly to a kind of laser three-D detections realized using diffraction optical element
Device and its detection method.
Background technique
Existing smart phone, tablet computer, top box of digital machine and other contactless operation equipment are both needed in operation
The controllers such as touch screen, handle, remote controler or rocking bar are equipped with to be controlled, it is inconvenient, need to be dedicated for controller pendulum
Between emptying, but also often cause unnecessary trouble since controller can not find.
Summary of the invention
The present invention provides one kind and no longer needs to be equipped with touch to solve above-mentioned defect existing in the prior art and deficiency
Operator can operate completely to equipment with body action for the controllers such as screen, handle, remote controler or rocking bar, can be wide
The general use diffraction optics member applied to smart phone, tablet computer, top box of digital machine and other contactless operation equipment
The laser three-D detection device and its detection method that part is realized.
Technical solution of the present invention: a kind of laser three-D detection device realized using diffraction optical element, including it is infrared
Light source module group, structure light optical encoding diffraction optical element, infrared image acquisition unit and data processing unit；
The structure light optical encoding diffraction optical element is set to infrared light supply mould group and goes out at light, assembles diffraction optics
Mould group；Diffraction optics mould group irradiates structure light optical encoding, which exposes to measurand, measurand
Three-dimensional appearance the spatial distribution of structure light optical encoding is modulated, spatially form new optical encoding distribution；
The infrared image acquisition unit is arranged beside infrared light supply mould group, can receive measurand surface quilt
Modulated structure light optical encoding, collects the distributed data of optical encoding；Infrared image acquisition unit and data processing list
Member link carry out data communication, then by data processing unit progress data analysis, operation, the three of available testee
Tie up profile pattern.
The present invention is issued by structure light optical encoding, optical encoding detection and data operation are analyzed to realize three-dimensional inspection
It surveys, the action behavior of human body, hand can be judged by the continuous monitoring of the three-dimensional appearance to human body, gesture, realize user
With the information exchange of application apparatus so that it no longer needs to be equipped with the controllers such as touch screen, handle, remote controler or rocking bar,
Operator can operate completely to equipment with body action, can be widely applied to smart phone, tablet computer, teaching machine
Top box and other contactless operation equipment.
Preferably, what the light source of the diffraction optics mould group issued is a D encoding with three-dimensional depth, this spreads out
The structure light coding technology for penetrating optics module realization uses continuous or pulse mode lighting method.
Preferably, the surface optical of the infrared image acquisition unit charge capture measured object encodes distribution, and data are passed
After passing data acquisition unit, the corresponding program that designs carries out data analysis, and is identified, remembered, analyzing processing movement.
A kind of detection method for the laser three-D detection device realized using diffraction optical element, is included the following steps:
1) the infrared light supply mould group with structure light optical encoding diffraction optical element and infrared image acquisition unit group essence
Close fit；
2) the structure light optical encoding structure light light that RF transmitter issues covers entire visual range, and infrared image is adopted
Collection unit group receives the infrared light of reflection to identify measured object；
3) after infrared camera identifies image and carries out data processing, output is the picture for having three-dimensional information,
The X, Y coordinates direction pixel coordinate of the picture represents the X, Y coordinates direction position of three-dimensional space, the gray scale generation of each pixel of picture
The position in table Z coordinate direction；
4) structured light patterns in entire space are all recorded, first does the calibration of primary source；
5) structure light is stamped in space, and entire space is just all marked, and an object is put into this space, only
Look at the structured light patterns above object, so that it may know this object where.
Preferably, the method demarcated in step 4) is a reference planes to be taken, in reference planes every a distance
Structured light patterns are recorded, and the location information of the total space then may be implemented by data fitting.
The present invention is issued by structure light optical encoding, optical encoding detection and data operation are analyzed to realize three-dimensional inspection
It surveys, the action behavior of human body, hand can be judged by the continuous monitoring of the three-dimensional appearance to human body, gesture, realize user
With the information exchange of application apparatus so that it no longer needs to be equipped with the controllers such as touch screen, handle, remote controler or rocking bar,
Operator can operate completely to equipment with body action, can be widely applied to smart phone, tablet computer, teaching machine
Top box and other contactless operation equipment.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is control principle block diagram of the invention；
1. contactless operation equipment, 2. structure light optical encoding diffraction elements, 3. infrared light supply mould groups, 4. infrared images
Acquisition unit, 5, light field.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings, but is not the limit to the scope of the present invention
System.
Below by taking tablet computer as an example: as illustrated in fig. 1 and 2, structure light optical encoding diffraction element 2 being set to infrared light
Going out at light for source mould group 3, assembles diffraction optics mould group；
It realizes that structure light optical encoding, structure light optical encoding are radiated at measured object surface using diffraction optics mould group, leads to
It crosses optical instrument to be spatially encoded to measured object surface, is a kind of special structured light technique.What its light source issued is one
Body coding with three-dimensional depth.The structure light coding technology that the diffraction optics mould group is realized uses continuous or pulse side
The illumination of formula, it is only necessary to which common sensitive chip can incude the distribution of its structure light optical encoding.
The surface optical of 4 charge capture measured object (such as human body) of infrared image acquisition unit encodes distribution, and data are transmitted
After data processing unit, the corresponding program that designs carries out data analysis, and is identified, remembered, the movement such as analysis processing.Example
Such as: infrared image acquisition unit can capture the gesture motion of user, then these sign languages are converted into process control life
It enables.Specifically, by structural light three-dimensional optical system and infrared image acquisition unit detecting, data analyze, can capture by
Survey limbs, the gesture motion of people, the data for then again having the image captured and 1 internal system of contactless operation equipment
Model contrasts.Each measured data for meeting internal canned data model will be created into relevant action model, be
System carries out action triggers, operation to subsequent applications equipment again by the model conversion at action command.
Infrared light supply mould group with structure light optical encoding diffraction optical element need to be with infrared image acquisition unit group essence
Close fit, the structure light optical encoding structure light light that RF transmitter issues cover entire visual range, infrared image acquisition
Unit group receives the infrared light of reflection to identify measured object.After infrared camera identifies image and carries out data processing, output
Be the picture for having three-dimensional information, the X, Y coordinates direction pixel coordinate of the picture represents the X, Y coordinates side of three-dimensional space
To position, the gray scale of each pixel of picture represents the position in Z coordinate direction.
The optical field distribution of structure light optical encoding has the randomness of height, and can be with the difference of distance, light field point
Cloth converts.That is any two in space at structured light patterns be all different.As long as stamping in space in this way
Structure light, entire space is just all marked, and an object is put into this space, as long as looking at the structure above object
Light pattern, so that it may know this object where.The structured light patterns in entire space are all recorded before this
Get off, first to do the calibration of primary source.The method of calibration is a reference planes to be taken, reference planes every a distance
On structured light patterns record, the location information of the total space then may be implemented by data fitting.Assuming that User Activity
Space is the range apart from 1 meter to 4 meters of television set, as soon as a reference planes are taken every 10cm, then demarcating system
Save 30 width structure light images.When needing to measure, the structure light image of the secondary scene to be measured of shooting one, by the diagram
Picture and the 30 width reference pictures that we preserve take turns doing computing cross-correlation, we can obtain 30 width correlation chart pictures in this way,
And have position existing for object in space, peak value will be shown on correlation chart picture.These peak values are stacked in one from level to level
It rises, using interpolation arithmetic, the 3D shape of entire scene will be obtained.
Claims (3)
1. a kind of laser three-D detection device realized using diffraction optical element, it is characterised in that: it includes infrared light supply mould
Group, structure light optical encoding diffraction optical element, infrared image acquisition unit and data processing unit；
The structure light optical encoding diffraction optical element is set to infrared light supply mould group and goes out at light, assembles diffraction optics mould
Group；Diffraction optics mould group irradiates structure light optical encoding, which exposes to measurand, measurand
Three-dimensional appearance is modulated the spatial distribution of structure light optical encoding, spatially forms new optical encoding distribution；It is described
What the light source of diffraction optics mould group issued is a D encoding with three-dimensional depth, the structure which realizes
Pumped FIR laser technology uses continuous or pulse mode lighting method；
The infrared image acquisition unit is arranged beside infrared light supply mould group, can receive measurand surface and be modulated
Structure light optical encoding afterwards, collects the distributed data of optical encoding；Infrared image acquisition unit and data processing unit chain
Row data communication is tapped into, data analysis, operation, the three-dimensional wheel of available testee are then carried out by data processing unit
Profile looks；The surface optical of the infrared image acquisition unit charge capture measured object encodes distribution, passes data to data
After acquisition unit, the corresponding program that designs carries out data analysis, and is identified, remembered, analyzing processing movement.
2. a kind of detection side of laser three-D detection device realized using diffraction optical element according to claim 1
Method, it is characterised in that: it includes the following steps:
Infrared light supply mould group and infrared image acquisition unit group precision-fit with structure light optical encoding diffraction optical element；
The structure light optical encoding structure light light that RF transmitter issues covers entire visual range, infrared image acquisition unit
Group receives the infrared light of reflection to identify measured object；
After infrared camera identifies image and carries out data processing, output is the picture for having three-dimensional information, the picture
X, Y coordinates direction pixel coordinate represent the X, Y coordinates direction position of three-dimensional space, the gray scale of each pixel of picture represents Z seat
Mark the position in direction；
The structured light patterns in entire space are all recorded, the calibration of primary source is first done；
Structure light is stamped in space, and entire space is just all marked, and an object is put into this space, as long as looking at
Structured light patterns above object, so that it may know this object where.
3. a kind of detection side of laser three-D detection device realized using diffraction optical element according to claim 1
Method, it is characterised in that: the method demarcated in step 4) is a reference planes to be taken, in reference planes every a distance
Structured light patterns are recorded, and the location information of the total space then may be implemented by data fitting.
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| CN105571521B true CN105571521B (en) | 2019-02-19 |
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| CN101403608A (en) * | 2008-11-13 | 2009-04-08 | 哈尔滨工程大学 | Accurate measurement apparatus and method for workpiece surface appearance |
| CN101451826A (en) * | 2008-12-17 | 2009-06-10 | 中国科学院上海光学精密机械研究所 | Object three-dimensional contour outline measuring set and measuring method |
| CN102385169A (en) * | 2011-11-29 | 2012-03-21 | 中国科学院上海光学精密机械研究所 | Three-dimensional dammann array generator |
| CN104634277A (en) * | 2015-02-12 | 2015-05-20 | 北京唯创视界科技有限公司 | Photographing device, photographing method, three-dimensional measuring system, depth calculation method and depth calculation device |
| CN104776815A (en) * | 2015-03-23 | 2015-07-15 | 中国科学院上海光学精密机械研究所 | Color three-dimensional profile measuring device and method based on Dammann grating |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3984018B2 (en) * | 2001-10-15 | 2007-09-26 | ペンタックス株式会社 | 3D image detection apparatus and 3D image detection adapter |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101403608A (en) * | 2008-11-13 | 2009-04-08 | 哈尔滨工程大学 | Accurate measurement apparatus and method for workpiece surface appearance |
| CN101451826A (en) * | 2008-12-17 | 2009-06-10 | 中国科学院上海光学精密机械研究所 | Object three-dimensional contour outline measuring set and measuring method |
| CN102385169A (en) * | 2011-11-29 | 2012-03-21 | 中国科学院上海光学精密机械研究所 | Three-dimensional dammann array generator |
| CN104634277A (en) * | 2015-02-12 | 2015-05-20 | 北京唯创视界科技有限公司 | Photographing device, photographing method, three-dimensional measuring system, depth calculation method and depth calculation device |
| CN104776815A (en) * | 2015-03-23 | 2015-07-15 | 中国科学院上海光学精密机械研究所 | Color three-dimensional profile measuring device and method based on Dammann grating |
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Effective date of registration: 20170922 Address after: Jiaxing City, Zhejiang province Tongxiang 314500 Takahashi Takahashi Road No. 1156 Building 8 floor 3 Branch Park Applicant after: Jiaxing Yu light photoelectric technology Co. Ltd. Address before: 2 No. 452, No. 6, No. 310000, Poplar Street, Xiasha Economic Development Zone, Zhejiang, Hangzhou Province, 0804 Applicant before: HANGZHOU DONG SHANG OPTOELECTRONICS TECHNOLOGY CO., LTD. |
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