CN108759715A - A kind of method for three-dimensional measurement based on smart mobile phone image - Google Patents
A kind of method for three-dimensional measurement based on smart mobile phone image Download PDFInfo
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- CN108759715A CN108759715A CN201810500726.XA CN201810500726A CN108759715A CN 108759715 A CN108759715 A CN 108759715A CN 201810500726 A CN201810500726 A CN 201810500726A CN 108759715 A CN108759715 A CN 108759715A
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- mobile phone
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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
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- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
It is still higher to solve cost existing for Portable three-dimensional shape measurement system and method for the prior art based on smart mobile phone, or data precision is low, it cannot be used for accurate dimension measurement, or accordance with tolerance it is higher the problems such as, the present invention proposes the method for three-dimensional measurement based on smart mobile phone image, the present invention is based on the calculating of natural light (containing structure light), optical measurement is combined with the image recognition processing technology of computer software, under the conditions of natural light, utilize the shooting of mobile phone, calculating and network transmission function, under with reference to background correction card graphic, calculating is identified in testee 3-D view, to obtain accurate testee three-dimensional data, and data or image are uploaded into network；The present invention is based on the method for three-dimensional measurement of smart mobile phone image, for some arbitrary point on object, in two shooting figure on pieces of homonymy, it is thus necessary to determine that they are exactly the pixel shot from the same point of object, obtain exact computation results.
Description
Technical field
The present invention relates to three-dimensional measurement field of engineering technology more particularly to a kind of three-dimensional surveys based on smart mobile phone image
Amount method.
Background technology
In daily life, especially in industrial production, it is often necessary to carry out three-dimensional appearance (face shape) to manufacture product and survey
Amount, obtains its accurate three-dimensional data information, due to the wilderness demand of production and living and its non-contact, high speed, precision it is high,
High degree of automation, convenient for real-time the features such as measuring, optical 3-dimensional image technology has become the optical main research side of information
One of to, also widely it is employed for the measuring three-dimensional morphology of complex object, already existing three-dimensional measurement skill in current society
Art has following several：
1, on test desk.With the visible light beam of mobile dual camera and laser or particular color, while to object
Surface is scanned, and measures calculating point by point.The disadvantage is that：Time of measuring is long, and speed is slow, cannot carry out the survey of dynamic object
Amount；Measuring apparatus is expensive, and retail price is unfavorable for promoting at 100,000 yuan or more；Equipment is heavy, not Portable belt；Operation requires height, makes
With complexity.
2, on test desk.Object is shot with twin camera, then obtains object dimensional data by image calculating.But
It is not based on image recognition to the processing for shooting photo, and is based only on specific structure light and is calculated.The disadvantage is that：It must
Test desk must be relied on, measuring apparatus is expensive, and retail price is unfavorable for promoting at 20,000 yuan or more；Equipment is heavy, not Portable belt；Operation
It is required that it is high, use complexity.
3, it allows testee to rotate or taking lens rotates, then the image being continuously shot is handled.Or it uses
Then two-shot testee carries out image recognition processing, but without correction card graphic reference, obtained data error is special
It is not big, it is only used for rough observational measurement, for the purpose of obtaining the 3-D view that human eye can be seen, should not be used in measurement.
Chinese patent literature CN106595523A, the applying date 20161223, patent name is：It is a kind of based on smart mobile phone
Portable three-dimensional shape measurement system and method, the Portable three-dimensional shape measurement system based on smart mobile phone include:It is micro-
Type projection module, for being to project required grating fringe figure and fringe period code pattern automatically to testee surface, rear end
Calculating acquisition is corresponding to be blocked phase and carries out phase unwrapping；Minitype projection module is integrated into mobile phone shell and smart mobile phone group
Close connection or it is stand-alone integrated be a pluggable component and smart mobile phone carries out wired connection；Smart mobile phone, for shooting modified strip
Print image obtains the raw image data of body surface height distribution；By being demarcated to mobile phone and system, camera lens is obtained
Parameter outside intrinsic parameter and space；It calculated obtaining data, handled, finally restored, store and show object dimensional pattern
Data；Stripe image data handles APP systems, for being calculated obtaining image data, being handled, calls and has nominal data
Restore, store and shows three-dimensional appearance data.
A kind of the Portable three-dimensional shape measurement system and method, use based on smart mobile phone of above patent document are general
It is mobile phone, at low cost, professional equipment need not be used, using projective structure light, using calibration system, to reach imaging and measurement
Purpose.But above-mentioned patent has the following problems：
Although 1, above-mentioned patent uses general mobile phone, its cost that can still have lower space.Its minitype projection
Block required precision is high, and specificity is strong, and sales volume is low, of high cost.
2, using projective structure light, natural light cannot be used, equipment is increased, increases the complexity of operation.Structure light light
Source device precision itself cannot reach micron order, then be said from its principle, it is judged by identifying the deformation of raster image
Three-dimensional distance size, brightness, aberration of light etc. accurately calculate it three-dimensional dimension and have natural error influence.Do not having
In the case of the background correction of correction card, it is accurate to be even more not easy to measure.Structure light is generally used for relative measurement, that is, imaging and
Fuzzy diagnosis, it is impossible to be used in accurate dimension measures.
3, it without correction calibrating function, cannot accurately measure, in the case where blocking without using correction, obtained data error is special
It is not big.
Though 4, the calculating based on structure light calculates simple many than the image recognition based on natural light, its result needs tight
The close precision dependent on structure light.
Therefore, otherwise existing Portable three-dimensional shape measurement system and method based on smart mobile phone there is cost according to
Old higher or data precision is low, cannot be used for the problems such as accurate dimension measurement or accordance with tolerance are higher.
Invention content
For solve Portable three-dimensional shape measurement system and method for the prior art based on smart mobile phone existing for cost according to
Old higher either data precision is low, cannot be used for the problems such as accurate dimension measurement or accordance with tolerance are higher, and the present invention proposes base
In the method for three-dimensional measurement of smart mobile phone image, the present invention is based on the calculating of natural light (containing structure light), by optical measurement
Combine with the image recognition processing technology of computer software, under the conditions of natural light, utilizes the shooting, calculating and net of mobile phone
Under with reference to background correction card graphic calculating is identified in testee 3-D view by network transfer function, accurate to obtain
Testee three-dimensional data, and data or image are uploaded into network.
The present invention is based on the three-dimensional measurement mechanism of smart mobile phone image,
Including：
Pedestal for inserting correction card, the pedestal are one, are positioned on horizontal plane；
Correction card, the correction card is positioned on pedestal, and correction card is one or one or more；The correction card
On also set up anti-fake mandate Quick Response Code, color correction mark, positioning correction mark, left and right card distinguishing mark, boundary and middle part correction mark
Ruler, azimuth mark, mobile phone shooting hole and gray-level registration mark；
Mobile terminal, the mobile terminal are smart mobile phone, and the smart mobile phone has camera, and the camera is for obtaining
Take image；
Software for calculation, the software for calculation are used to be calculated and be handled image data to obtaining image data.
Based on the method for three-dimensional measurement of smart mobile phone image, the method utilizes the three-dimensional measurement based on smart mobile phone image
Mechanism measures object, and obtains the topographic data of testee, and step is：
Step S1, by correction card insertion on pedestal or so slot；
Step S2 opens smart mobile phone camera, is placed in exposal model, and the exposal model is that high-resolution is taken pictures mould
Formula；The smart mobile phone camera is tightly attached to the mobile phone shooting hole being arranged on correction card, takes pictures towards testee, shooting first
Open photo；
The tight machine of smart mobile phone camera is attached on correction card and moves horizontally some distances by step S3；It is described apart from size
It is determined by testee size；Smart mobile phone camera shoots hole by correcting the mobile phone being arranged on card, shoots second photo；
Three-dimensional data and image is calculated using the software for calculation of smart mobile phone in step S4.
Further, it when correction card described in step S1 is one, is only used for measuring a face of object；
Further, when correction card described in step S1 is one, it is first positioned over one side of testee, then be positioned over tested
The another side of object, two faces for measuring object；
Further, when correction card described in step S1 is two, it can be positioned over the right and left of testee together；
Further, testee described in step S3, the unilateral length of side are less than the testee of 30cm, smart mobile phone camera shooting
The displacement distance of head is 1~3cm；
Further, it when measuring multiple faces of object, then needs to shoot photo respectively in testee both sides；
Further, three-dimensional data and image is calculated described in step S4, uploads network or picture is first uploaded into net
Then network is identified calculating by the software for calculation on the server on network, obtains three-dimensional data and image.
Further, on pedestal, it is divided to the left and right sides to insert two pieces of vertical left and right correction card respectively, corrects the front for having figure of card
Inwardly, i.e., to the right, to the left, testee is placed between two pieces of correction cards right side card left side card；Correct the intelligence in the outside of card
Mobile phone abuts against on correction card, and the mobile phone by correcting card shoots hole, shoots testee；Per side one is clapped upper and lower respectively
It is secondary, obtain the image of two homonymies；Upper left shooting point UL and lower-left shooting point DL, the respectively camera site twice of mobile phone；It is right
Photographs point UR and bottom right shooting point DR, the respectively camera site twice of mobile phone.
The present invention is based on the method for three-dimensional measurement of smart mobile phone image, advantage is：
1, using correction card background image, high-acruracy survey is realized, is identified using image and software, instead of costliness
Hardware device；
2, the present invention takes a method using second order inflection point, can realize natural light image recognition, not need dedicated structure light.
Description of the drawings
Attached drawing 1 is that the present invention is based on the basic principle front views of the method for three-dimensional measurement of smart mobile phone image；
Attached drawing 2 is that the present invention is based on the basic principle front views of the method for three-dimensional measurement of smart mobile phone image；
Attached drawing 3 is that the present invention is based on the correction card design drawings of the method for three-dimensional measurement of smart mobile phone image；
Attached drawing 4 is that the present invention is based on the trigonometry three-dimensional coordinate Computing Principles of the method for three-dimensional measurement of smart mobile phone image
Figure；
Attached drawing 5 is that the present invention is based on the measurement precision analysis definition graphs of the method for three-dimensional measurement of smart mobile phone image；
Attached drawing 6 is that the present invention is based on characteristic points on the image of the method for three-dimensional measurement of smart mobile phone image to take a schematic diagram；
Attached drawing 7 is that the present invention is based on the software flowing charts of the method for three-dimensional measurement of smart mobile phone image；
In the following with reference to the drawings and specific embodiments to the present invention is based on the method for three-dimensional measurement of smart mobile phone image to make into one
The explanation of step.
Specific implementation mode
It is this that attached drawing 1, which is the present invention is based on the basic principle front view of the method for three-dimensional measurement of smart mobile phone image, attached drawing 2,
Basic principle front view, the attached drawing 3 of method for three-dimensional measurement of the invention based on smart mobile phone image are that the present invention is based on smart mobile phones
Correction card design drawing, the attached drawing 4 of the method for three-dimensional measurement of image are that the present invention is based on the method for three-dimensional measurement of smart mobile phone image
Trigonometry three-dimensional coordinate schematic diagram calculation, attached drawing 5 be the present invention is based on the measurements of the method for three-dimensional measurement of smart mobile phone image
Precision analysis definition graph, attached drawing 6 are that the present invention is based on characteristic points on the image of the method for three-dimensional measurement of smart mobile phone image to take a little
Schematic diagram, attached drawing 7 are the present invention is based on the software flowing chart of the method for three-dimensional measurement of smart mobile phone image, and in figure, 1 is quilt
Survey object, 2 for right correction card, 3 be left correction block, 4 be upper left shooting point UL, 5 be upper right shooting point UR, 6 be lower-left shooting point
DL, 7 be bottom right shooting point DR, 8 be mobile phone, 9 be pedestal, 10 be anti-fake mandate Quick Response Code, 11 be color correction mark, 12 be positioning
Correction mark, 13 be left and right card distinguishing mark, 14 be boundary and middle part correction scale, 15 be azimuth mark, 16 be mobile phone shoot hole, 17
For gray-level registration mark, 18 be testee, 19 on the testee picture of shooting be arranged x-axis, 20 be finally to count
The characteristic point taken on picture that calculates, 21 picture along the gray value of the point of the picture of x-axis, 22 to be along x-axis
The single order gray value of point, 23 is are certain on object being measured along absolute value, the A of the second order gray value of the point of the picture of x-axis
A point, B are a reference point on correction card, C is some point on object being measured, C ' is that C points are vertical on camera lens face
Subpoint, C1 are left taking lens central point, C1 ' is the upright projection point of left taking lens central point on the image (in image
Heart point), C2 be right taking lens central point, C2 ' is the upright projection point (picture centre of right taking lens central point on the image
Point), A ' be the starting endpoint for the image that upright projection point, L of the A points on camera lens face are the shooting of left taking lens, R is right shooting
The starting endpoint of image of camera lens shooting, AL be pixel, BL of the A points in left image be pixel of the B points in left image,
It is pixel, CR of the A points in right image is pixel of the C points in right image that CL, which is pixel, AR of the C points in left image,
Point, HA be A points to the vertical range in camera lens face, HB be B points to the vertical range in camera lens face, HC be C points to the vertical of camera lens face
Distance, C " are upright projection point of the C points on image surface.
It will be appreciated by persons skilled in the art that the method for three-dimensional measurement of the present invention based on smart mobile phone image,
Its principle derives from human eye bionic, and the distance of object can be distinguished by imitating two eyes, using respectively representing two of two eyes
Camera lens measures the 3D shape of object from image.Three-dimensional quantitative measurement is with qualitative imaging except that measuring to data
Precision requirement, be taken (measurement) object background in setting correction card, allow shooting image beside have accurate ruler
The data reference of very little calibration just has the foundation of accurate calculating when calculating is identified to image in software, so as to obtain
Accurate data.The present invention is respectively identified two images of homonymy, calculates, and obtains three dimension of shape of testee
According to the data can carry out three-dimensional simulation image restoring in strange land.
In the specific implementation, basic calculating principle is based on trigonometric function method.On object arbitrary point to camera lens face distance, i.e.,
Z coordinate illustrates that its reckoning process and principle, x coordinate are identical with the reckoning Principle of Process of y-coordinate below by taking z coordinate as an example.
As shown in Figure 1 and Figure 2, it is the figure of the method for entire test device test from two different directions
Show.On pedestal, the left and right sides is divided to insert two pieces of vertical left and right correction card respectively, correct card have figure it is just inward-facing (left side block to
The right side, right side card is to the left), testee is placed between two pieces of correction cards.The mobile phone for correcting the outside of card abuts against correction card
On, by correcting the borehole of card, shoot testee.It is clapped once upper and lower respectively per side, special bimirror can also be used
Head mobile phone claps primary, the image of two homonymies of acquisition.4 it is upper left shooting point UL, 6 is lower-left shooting point DL, respectively mobile phone
Two camera lenses of camera site or twin-lens custom-made mobile phone twice.5 it is upper right shooting point UR, 7 is bottom right shooting point DR
5, respectively two camera lenses of the camera site twice of mobile phone or twin-lens custom-made mobile phone.
Attached drawing 4 is that the present invention is based on the trigonometry three-dimensional coordinate Computing Principles of the method for three-dimensional measurement of smart mobile phone image
Figure, in figure, A be some point, the B on object being measured be a reference point on correction card, C is some on object being measured
Point is the characteristic point on testee.Set in attached drawing 4 camera lens face between image surface at a distance from as known parameters, in reality
Because in error range, can ignore in calculating.
In the specific implementation, the C1 ' between the camera lens that homonymy is shot twice in attached drawing 1, attached drawing 2 in distance i.e. attached drawing 4
To distance between C2 ', it can be calculated, can also be led to by correcting the position of the pixel for the subpoint being stuck on the image of shooting
It crosses fixed mobile phone location or measures mobile phone location and obtain, be known parameters.The present invention adopts the positioning correction mark on correction card
Or the position of the pixel of projection of the correction scale on the image of shooting is calculated.Offside correction card in attached drawing 1, attached drawing 2
It is determined by base size with this side mirror head distance between the surface (HB in attached drawing 4), is known parameters.
According to attached drawing 4, calculating process derives as follows：
It enables：
Camera lens face is LJ with image distance between the surface,
Half length of camera lens photosurface (L in figureL-C1', LR-C2Between distance) be S,
Distance is L between C1 and C2,
It obtains：
∠ CR-C2-C2'=arctg ((LCR-R-S)/LJ)
=∠ B-C2-C
=∠ C2-C-C '
Enable its=∠ 1
Similarly, it obtains：
∠ CL-C1-C1'=arctg ((LCL-L-S)/LJ)
=∠ C1-C-C '
Enable its=∠ 2
Obtain equation group：
LHC=tg (90- ∠ 1) * LC’-C2=tg (90- ∠ 2) * LC’-C1 (1)
LC’-C1+LC’-C2=L (2)
It enables：
LC’-C1=L1, LC’-C2=L2
Tg (90- ∠ 1)=M1
Tg (90- ∠ 2)=M2
It obtains apart from coordinate：
LHC=L*M1/ (1+M1/M2)
Transverse and longitudinal coordinate can similarly be calculated.
It is this hair that attached drawing 3, which is the present invention is based on correction card design drawing, the attached drawing 6 of the method for three-dimensional measurement of smart mobile phone image,
Characteristic point takes a schematic diagram on the image of the bright method for three-dimensional measurement based on smart mobile phone image, shown in attached drawing 6, finally passes through
Second order inflection point calculates, and obtains in figure 3 and indicates to obtain multiple characteristic points.All x lines and y lines are calculated, all characteristic points is got, then passes through
Cross interpolation calculation, you can obtain all three-dimensional datas on whole object surface.
Attached drawing 5 is that the present invention is based on the measurement precision analysis definition graphs of the method for three-dimensional measurement of smart mobile phone image, is such as schemed
It is shown, shift out the data relationship between resolution of lens and institute's measured data resolution ratio onto：
LA-C”-(LA-C”/LC”-AR)(LC”-AR+ a)=b
Wherein：
A is pick-up lens pixel diameter
B is the resolution dimensions that can be realized to material object
LC”-ARIt is the 1/2 of the distance between twin-lens
LA-C”The distance between material object is arrived for camera lens
B=-a (LA-C”/LC”-AR)mm
It can be seen that：
Work as LA-C”Bigger, b is smaller, LA-C”Bigger, b is bigger；
The distance between two camera lenses of measurement accuracy and homonymy are related.
In the specific implementation, with the mobile phone camera lens value of 500 resolutions very much, pixel diameter is not less than 1.4 μm
(1.4x10-3mm), LA-C" it is assumed to be 200mm, LC”-ARIt is assumed to be 100mm, then
B=1.4x10-3(200/100) mm=2.8x10-3mm
As it can be seen that precision is sufficiently high.
In the specific implementation, LA-C”With LC”-ARIt is not that bigger or smaller precision is higher.Work as LA-C”It is small to a certain extent when,
Lens focus cannot meet correction card simultaneously and testee is all clear, and the fiber crops brought in speed and precision are calculated to program
It is tired；And it is too big, and directly reduce precision.And LC”-ARIf too small, precision reduces, but if too big, can cause to shoot twice
Too big deviation all occurs for image angle, gray scale, so that cannot lock the same point from two images, leads to not calculate
Correct data.The selection of the two parameters should be adjusted according to practically necessary precision.In the case where precision allows,
Minimize LC”-AR.Such as, it would be desirable to the measurement accuracy of 1mm or so is 5,000,000 using above-mentioned resolution ratio, pixel
1.4x10-3The mobile phone camera camera lens of mm, then b=1.4x10-3(500/10) mm=0.07mm.
Attached drawing 7 be the present invention is based on the software flowing charts of the method for three-dimensional measurement of smart mobile phone image, as shown,
The entire shape precise information of three-dimension object can be calculated.
Step 1 takes two photos respectively in the way of attached drawing 1 and attached drawing 2 in the right and left of object, totally 4
Photo；
Step 2 handles this 4 photos using the software that we specially work out on mobile phone, obtains the three-dimensional data of object.
4 can also be uploaded to take a picture to server, three-dimensional identification calculation processing is carried out by server.At the software calculating of this step
Reason comprises the steps of three, and totally four steps, this four steps are that computer carries out automatically to step 6, are not required to manual intervention.
Step 3 gets all characteristic points according to algorithm principle shown in attached drawing 6 and attached drawing 7 on picture；
Step 4 is calculated the characteristic point for the image that correction is stuck on photo with trigonometric function method, obtains standard and accurately rectify
Correction data；
Step 5 calculates all characteristic points got from object picture, with obtained correction to submit function method
Data correction data；
Step 6 calculates the region point outside characteristic point with smooth interpolation algorithm, obtains accurate three dimension of whole object
According to.
Claims (9)
1. a kind of three-dimensional measurement mechanism based on smart mobile phone image, which is characterized in that including：
Pedestal for inserting correction card, the pedestal are one, are positioned on horizontal plane；
Correction card, the correction card is positioned on pedestal, and correction card is one or one or more；On the correction card also
Anti-fake mandate Quick Response Code, color correction mark, positioning correction mark, left and right card distinguishing mark, boundary and middle part correction scale, side are set
Position mark, mobile phone shooting hole and gray-level registration mark；
Mobile terminal, the mobile terminal are smart mobile phone, and the smart mobile phone has camera, the camera to scheme for obtaining
Picture；
Software for calculation, the software for calculation are used to be calculated and be handled image data to obtaining image data.
2. a kind of method for three-dimensional measurement based on smart mobile phone image, which is characterized in that the method, which utilizes, is based on smart mobile phone
The three-dimensional measurement mechanism of image measures object, and obtains the topographic data of testee, and step includes,
Step S1, by correction card insertion on pedestal or so slot；
Step S2 opens smart mobile phone camera, is placed in exposal model, and the exposal model is high-resolution exposal model；
The smart mobile phone camera is tightly attached to the mobile phone shooting hole being arranged on correction card, takes pictures towards testee, shoots first
Photo；
The tight machine of smart mobile phone camera is attached on correction card and moves horizontally some distances by step S3；It is described apart from size by quilt
Article size is surveyed to determine；Smart mobile phone camera shoots hole by correcting the mobile phone being arranged on card, shoots second photo；
Three-dimensional data and image is calculated using the software for calculation of smart mobile phone in step S4.
3. the method for three-dimensional measurement according to claim 2 based on smart mobile phone image, which is characterized in that
Step S1, by correction card insertion on pedestal or so slot；It is divided to the left and right sides to insert two pieces of vertical left and right correction card, correction card respectively
Have the just inward-facing of figure, i.e., to the right, to the left, testee is placed between two pieces of correction cards right side card left side card；
Step S2 opens smart mobile phone camera, is placed in exposal model, and the exposal model is high-resolution exposal model；
The smart mobile phone camera is tightly attached to the mobile phone shooting hole being arranged on correction card, takes pictures towards testee, shoots first
Photo；The smart mobile phone for correcting the outside of card abuts against on correction card, and the mobile phone by correcting card shoots hole, shoots measured object
Body；
The tight machine of smart mobile phone camera is attached on correction card and moves horizontally some distances by step S3；It is described apart from size by quilt
Article size is surveyed to determine；Smart mobile phone camera shoots hole by correcting the mobile phone being arranged on card, shoots second photo；It is each
Primary, the image of two homonymies of acquisition is clapped upper and lower in side respectively；Upper left shooting point UL and lower-left shooting point DL, respectively mobile phone
Camera site twice；Upper right shooting point UR and bottom right shooting point DR, the respectively camera site twice of mobile phone.
Three-dimensional data and image is calculated using the software for calculation of smart mobile phone in step S4.
4. the method for three-dimensional measurement according to claim 3 based on smart mobile phone image, which is characterized in that described in step S1
When correction card is one, it is only used for measuring a face of object.
5. the method for three-dimensional measurement according to claim 4 based on smart mobile phone image, which is characterized in that described in step S1
When correction card is one, it is first positioned over one side of testee, then be positioned over the another side of testee, for measuring object
Two faces.
6. the method for three-dimensional measurement according to claim 4 based on smart mobile phone image, which is characterized in that described in step S1
When correction card is two, it can be positioned over the right and left of testee together.
7. the method for three-dimensional measurement according to claim 3 based on smart mobile phone image, which is characterized in that described in step S3
Testee, the unilateral length of side are less than the testee of 30cm, and the displacement distance of smart mobile phone camera is 1~3cm.
8. the method for three-dimensional measurement according to claim 3 based on smart mobile phone image, which is characterized in that when measurement object
Multiple faces when, then shoot photo respectively in testee both sides.
9. the method for three-dimensional measurement according to claim 3 based on smart mobile phone image, which is characterized in that described in step S4
Be calculated three-dimensional data and image, upload network or picture first uploaded into network, then by the server on network
Calculating is identified in software for calculation, obtains three-dimensional data and image.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110480510A (en) * | 2019-07-25 | 2019-11-22 | 广州市宇欣光电子技术研究所有限公司 | A kind of optical measuring system and application method for grinding |
| CN113720262A (en) * | 2021-08-31 | 2021-11-30 | 钟庆生 | Calibration method of three-dimensional measurement software |
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