CN101301200A - Method for measuring three-dimensional feature of face on patient with defected face - Google Patents
Method for measuring three-dimensional feature of face on patient with defected face Download PDFInfo
- Publication number
- CN101301200A CN101301200A CNA2008100381991A CN200810038199A CN101301200A CN 101301200 A CN101301200 A CN 101301200A CN A2008100381991 A CNA2008100381991 A CN A2008100381991A CN 200810038199 A CN200810038199 A CN 200810038199A CN 101301200 A CN101301200 A CN 101301200A
- Authority
- CN
- China
- Prior art keywords
- video camera
- monocular
- patient
- face
- gage outfit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A method for measuring face three-dimensional appearance of face defect patients belongs to fields of optical measurement, mechanical engineering and medical engineering. Based on structure optical projection three-dimensional vision measurement technique, a double-monocular white light three-dimensional measurement system used for face defect restoration of patients is employed, Gray codes and phase shift coding structure optical stripe patterns are respectively projected on left and right face of patients by controlling a left magic lantern projector and a right magic lantern projector, after a left camera and a right camera respectively take a view of deformed structure optical stripe patterns, measurement of complete three-dimensional face appearance of patients is realized by image decoding, triangle principle and double-eye measurement data combination. The measurement system can realize accurate data collection of natural state parenchyma of patient faces under non-contact condition and provide credible three-dimensional appearance original data of patient faces for clinic appearance defect restoring therapy.
Description
Affiliated technical field:
The present invention relates to a kind of method of measuring three-dimensional feature of face on patient with defected face.Particularly a kind of based on structured light projection dimensional visual measurement technology, be used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired, the facial pattern of patient with defected is realized the method for three-dimensional measurement that partial data is gathered.Belong to optical measurement, mechanical engineering and engineering in medicine technical field.
Background technology:
It is defected that a variety of causes causes, and not only can bring the obstacle of physiological function to the patient, can make the patient produce serious mental maladjustment simultaneously, is difficult to work normally and social activity, even makes many patients lose the confidence of life.Because special anatomic form, organizational structure and other influence factors of jaw face organ, the face large defect adopts prosthesis to carry out repairing and treating usually.The key of this technology is accurately obtaining of defects of patient face district information, and to satisfy the prosthesis shape, many required precisions of aspects such as edge treated and morphology are fitted with tissue surface in the location.
Traditional defects of patient face district data acquisition technology rests on the stage that die is produced always.It adopts all kinds of impression materials to obtain the damaged situation of patient's defective region, behind the duplicate cast, carries out manual wax shape engraving by rule of thumb by the technician again, finishes after the filling.There are a lot of shortcomings in this die preparation method: such as impression material can produce certain zest to tissue, and may cause the soft tissue displacement, and cause model bias; There are problems such as complex manufacturing technology, fabrication cycle is long, molding prosthesis aesthetic effect is poor, and location and applying are inaccurate simultaneously.
Along with development of science and technology, part Chinese scholars and clinician begin to adopt technology such as CT Scan (CT), NMR (Nuclear Magnetic Resonance)-imaging (MRI), laser scanning to realize the three-dimensional measurement and the image reconstruction of the damaged face of patient, alternative traditional die preparation method and obtain more accurate relatively defective region information.But these measuring methods still have certain limitation.CT and MRI measuring method spatial resolution is low, certainty of measurement is poor, it is long to obtain data time, the reconstruction of soft tissue is had certain shortcoming, and the lonizing radiation of scanning has potential infringement to human body.The speed of laser measurement is slower equally, can't guarantee the absolute rest of the facial pattern of patient in the whole measuring process, adds that LASER Light Source has potential injury to human eye, has all limited the further application of these methods in defected reparation.
The white light three-dimensional measurement is a kind of measuring method that develops rapidly in recent years, and it adopts the principle of similar photograph, within several seconds, can obtain the measurement data of up to a million points.And white light measurement safety, without any injury, be the good method of a kind of promising somatic data measurement and three-dimensional reconstruction to human body.Yet, because the particularity that patient face is measured has limited the application of existing white light three-dimensional measuring technique in this field.Usually realize the measurement of single visual angle such as existing white light three-dimensional measuring technique, obtain partial data needs various visual angles to measure, and carries out the software amalgamation.In the prior art, J.
At paper Three dimensional measurementof human face with structured-light illumination (Measurement Science Review, Volume 6, Section 2, No.1,2006) mention in after using three-dimensional face monocular measuring system (ShapeCam) to measure a plurality of visual angles face data, have to re-use ShapeMatcher software and carry out amalgamation to obtain complete face data.Because patient's posture and facial shape can not keep absolutely stationary in the whole measuring process, introduce bigger amalgamation error so various visual angles are measured back amalgamation meeting, thereby cause the inaccuracy of the facial measurement data of patient.
Summary of the invention:
For overcoming that face on patient with defected face in the prior art measures that the certainty of measurement that exists is low, measuring speed slow and human body being had deficiency such as potential damage, the characteristics that the present invention measures according to face have proposed a kind of method of brand-new measurement three-dimensional feature of face on patient with defected face.Employing is used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired, under noncontact condition, realize precise information collection, for clinical defected repairing and treating provides the practical and reliable patient facial three-dimensional appearance initial data to the facial naturalness soft tissue of patient.
The present invention is achieved through the following technical solutions.The employed measurement device of method of the measurement three-dimensional feature of face on patient with defected face that the present invention proposes is used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired for the process double monocular white light three-dimensional measuring systems calibration method is calibrated.This measuring system is made up of left monocular gage outfit, right monocular gage outfit, gage outfit support, gage outfit translation mechanism, switch board, computer.Wherein left monocular gage outfit comprises left lantern projection instrument and left video camera.Right monocular gage outfit comprises right lantern projection instrument and right video camera.Left side lantern projection's instrument and right lantern projection instrument are formed by white light source, heat-protecting glass, physical code grating, grating translation mechanism, projection lens.White light source is heat insulation through heat-protecting glass, and rear-projection is to the physical code grating, with the structural light stripes pattern of physical code grating by projection lens projects to patient's face.Wherein, the switching of every width of cloth structural light stripes pattern realizes by mobile grating translation mechanism.The structural light stripes pattern that the present invention adopts is encoded by 7 width of cloth Gray code patterns and the combination of 4 width of cloth phase-shift patterns.The mode of Gray code and the phase-shift pattern assembly coding vigorousness of encoding is good, and the resolution height both can have been measured sudden change and noncontinuous surface, can obtain the fine textures on surface again, was applicable to the measurement of three-dimensional feature of face on patient with defected face.
Gray code pattern first width of cloth is a black and white strip each half, since second width of cloth, striped is segmented gradually: last width of cloth black streaking zone is according to the half black five equilibrium that partly carries out in vain, and last width of cloth informal voucher stricture of vagina zone is according to the half white half black five equilibrium that carries out.Can obtain 7 coded sequence according to black and white strip difference presentation logic value 0 and 1,7 width of cloth Gray code pattern, the space can be divided into 2
7Individual zone, by the corresponding respectively integer index value m of direction (m=0,1,2 ..., 2
n-1).The spatial resolution that Gray code pattern coding obtains is lower.
Phase-shift pattern is by the coding rule of four step phase shifts, and the area of space width that its cycle and Gray code pattern are divided is consistent, and is benchmark with first width of cloth phase-shift pattern, and second width of cloth begins to be offset width of fringe half than the last width of cloth respectively.The light distribution L that the projection phase-shift pattern obtains
q(q=0,1,2,3) are expressed from the next:
Wherein, I ' is the background light intensity, I, and " be the striped light intensity contrast ratio, φ ' is a relative phase.Wherein relative phase φ ' can be calculated by following formula:
Phase-shift pattern is coded in the area of space that each Gray code divides has high spatial resolution.Because master phase cycle and Gray code area of space overlap fully, so the combination of these two kinds of codings can obtain by following formula:
φ＝2π·m+φ′
Wherein φ is the absolute phase of assembly coding.Realize the high-resolution coding of space light projecting direction thus, set up corresponding relation between these directions and the absolute phase.
The method of the measurement three-dimensional feature of face on patient with defected face that the present invention proposes specifically comprises the steps:
1) adjusts the position of left monocular gage outfit and right monocular gage outfit and adjust left video camera and right video camera is taken the light exposure parameter.Open left lantern projection instrument and right lantern projection instrument, projective structure striations pattern is opened left video camera and right video camera and is carried out the real-time scene shooting to patient's face.A control survey translation mechanism moves to suitable measuring position with about left monocular gage outfit and the right monocular gage outfit and front and back, makes patient's face be positioned at left video camera and right video camera photographed scene center simultaneously.According to the structural light stripes quality of photographic images, adjust left video camera and right video camera and take the light exposure parameter.
2) left monocular gage outfit is measured.Close right lantern projection instrument, move the grating translation mechanism of left lantern projection instrument, it is facial to the patient left side that left lantern projection instrument throws a width of cloth structural light stripes pattern.Left side camera acquisition is projected to the facial structural light stripes pattern in patient left side.If finished the projection of all structural light stripes patterns, the grating translation mechanism of left lantern projection instrument is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism of controlling left lantern projection instrument moves, and throws a width of cloth structural light stripes pattern again, and left video camera is gathered once more, finishes until all structural light stripes pattern projections.
3) right monocular gage outfit is measured.Close left lantern projection instrument, open right lantern projection instrument, move the grating translation mechanism of right lantern projection instrument, right lantern projection instrument throws a width of cloth structural light stripes pattern to patient right side face.Right camera acquisition projects the structural light stripes pattern of patient right side face.If finished the projection of all structural light stripes patterns, the grating translation mechanism of right lantern projection instrument is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism of controlling right lantern projection instrument moves, and throws a width of cloth structural light stripes pattern again, and right video camera is gathered once more, finishes until all structural light stripes pattern projections.
4) structural light stripes Flame Image Process, three-dimensional coordinate point calculate and result's demonstration.
Because the modulating action of the facial three-dimensional appearance of patient, the structural light stripes pattern of projection deforms.These deformed configurations striations patterns include facial three-dimensional appearance information.Can take the distressed structure striations image that obtains by analyzing left video camera and right video camera respectively, realize the three-dimensional reconstruction of the facial pattern of patient.
The structural light stripes image that left video camera is taken is decoded according to Gray code and phase-shift coding rule, obtain the absolute phase of each image slices vegetarian refreshments of left video camera.Can determine the left lantern projection instrument space light projecting direction of this image slices vegetarian refreshments correspondence according to the absolute phase values of each image slices vegetarian refreshments.
Image slices vegetarian refreshments position and left camera parameters can be determined the imaging straight line of left video camera; Left side lantern projection's instrument space light projecting direction and left lantern projection instrument parameter can be determined the ray cast plane of left lantern projection instrument; Measure the rotation and the translational shifting appearance transition matrix of coordinate system respectively with left monocular gage outfit according to left video camera, left lantern projection instrument, the imaging straight line of left video camera and ray cast plane conversion to the left monocular gage outfit of left lantern projection instrument can be measured coordinate system, try to achieve this straight line and planar intersection point, be the facial three-dimensional point in patient left side and measure locus under the coordinate system at left monocular gage outfit.
The analyzing and processing mode of the structural light stripes image that right photographic head is taken is in full accord with the above-mentioned structural light stripes treatment of picture that left video camera is taken, and finally obtains the facial three-dimensional point in patient right side locus under right monocular gage outfit measurement coordinate system.
Measure rotation and translational shifting appearance transition matrix relation between coordinate system according to left monocular gage outfit and right monocular gage outfit, the facial three-dimensional coordinate point in patient right side is converted to left monocular gage outfit measures coordinate system, or the facial three-dimensional coordinate point in patient left side is converted to right monocular gage outfit measures coordinate system, thereby obtain the facial three-dimensional appearance data of complete patient, and show with a cloud form on computers, be convenient to man-machine interactive operation.
Beneficial effect of the present invention:
The present invention is used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired, can under noncontact condition, realize the quick collection of the facial soft tissue partial data of naturalness patient, its certainty of measurement is in 0.03mm, Measuring Time is less than 8s, can obtain nearly 2,000,000 quantity three-dimensional point clouds.This measuring method can replace the die reparation technology process that prosthesis is made in traditional defected reparation, shortens treatment cycle greatly, has reduced technician's working strength.Because these data are directly from patient's naturalness, very accurate coincideing can be accomplished in prosthesis of making and defects of patient face position, greatly reduces because the error that the artificial origin causes improves prosthesis and makes precision, reduced the risk of operation.With respect to technology such as CT, MRI, laser, adopt white light as back projection light source, human body is not produced any potential injury.
Description of drawings:
Fig. 1 measuring method FB(flow block) of the present invention
The double/single ocular white light three-dimensional measuring system sketch map that Fig. 2 the present invention uses
Fig. 3 lantern projection of the present invention instrument structural representation
1 left monocular gage outfit, 2 right monocular gage outfits, 3 gage outfit supports, 4 gage outfit translation mechanisms, 5 switch boards, 6 computers, 7 left lantern projection instrument, 8 left video cameras, 9 right lantern projection instrument, 10 right video cameras, 11 white light sources, 12 heat-protecting glasses, 13 physical code gratings, 14 grating translation mechanisms, 15 projection lens, 16 patient faces among the figure
The specific embodiment:
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described further.
As shown in Figures 2 and 3, the employed measurement device of method of the measurement three-dimensional feature of face on patient with defected face of the present invention's proposition is to be used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired.This measuring system is made up of left monocular gage outfit 1, right monocular gage outfit 2, gage outfit support 3, gage outfit translation mechanism 4, switch board 5, computer 6.Wherein left monocular gage outfit 1 comprises left lantern projection instrument 7 and left video camera 8.Right monocular gage outfit 2 comprises right lantern projection instrument 9 and right video camera 10.Left side lantern projection's instrument 7 and right lantern projection instrument 9 are formed by white light source 11, heat-protecting glass 12, physical code grating 13, grating translation mechanism 14, projection lens 15.White light source 11 is heat insulation through heat-protecting glasses 12, and rear-projection is projected to patient's face 16 with the structural light stripes pattern of physical code grating 13 by projection lens 15 to physical code grating 13.Wherein, the switching of every width of cloth structural light stripes pattern realizes by mobile grating translation mechanism 14.
This measuring system uses double monocular white light three-dimensional measuring systems calibration method to demarcate, the parameter of demarcating comprises: the focal length and the principal point of left video camera 8 and right video camera 10, the focal length and the master phase of left side lantern projection's instrument 7 and right lantern projection instrument 9, left side video camera 8 and left lantern projection instrument 7 are measured the rotation and the translational shifting appearance transition matrix of coordinate system respectively with respect to left monocular gage outfit 1, right video camera 10 and right lantern projection instrument 9 are measured the rotation and the translational shifting appearance transition matrix of coordinate system respectively with respect to right monocular gage outfit 2, left monocular gage outfit 1 and right monocular gage outfit 2 are measured rotation and translational shifting appearance transition matrix between coordinate system.
As shown in Figure 1, the method for the measurement three-dimensional feature of face on patient with defected face of the present invention's proposition specifically comprises the steps:
1) adjusts left monocular gage outfit 1 and right monocular gage outfit 2 positions and adjust left video camera 8 and right video camera 10 is taken the light exposure parameters.Open left lantern projection instrument 7 and right lantern projection instrument 9, projective structure striations pattern is opened left video camera 8 and right video camera 10 and is carried out the real-time scene shooting to patient's face.A control survey translation mechanism 4, about in the of 2 and front and back move to suitable measuring position with left monocular gage outfit 1 and right monocular gage outfit, make patient's face be positioned at left video camera 8 and right video camera 10 photographed scene centers simultaneously.According to structural light stripes picture quality in the photographic images, adjust left video camera 8 and right video camera 10 shooting light exposure parameters.
2) left monocular gage outfit 1 is measured.Close right lantern projection instrument 9, move the grating translation mechanism 14 of left lantern projection instrument 7, left lantern projection instrument 7 projections one width of cloth structural light stripes pattern is facial to the patient left side.Left side video camera 8 is gathered and is projected to the facial structural light stripes pattern in patient left side.If finished the projection of all structural light stripes patterns, the grating translation mechanism 14 of left lantern projection instrument 7 is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism 14 of controlling left lantern projection instrument 7 moves, and throws a width of cloth structural light stripes pattern again, and left video camera 8 is gathered once more, finishes until all structural light stripes pattern projections.
3) right monocular gage outfit 2 is measured.Close left lantern projection instrument 7, open right lantern projection instrument 9, move the grating translation mechanism 14 of right lantern projection instrument 9, right lantern projection instrument 9 projections one width of cloth structural light stripes pattern is to patient right side face.Right video camera 10 is gathered the structural light stripes pattern that projects patient right side face.If finished the projection of all structural light stripes patterns, the grating translation mechanism 14 of right lantern projection instrument 9 is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism 14 of controlling right lantern projection instrument 9 moves, and throws a width of cloth structural light stripes pattern again, and right video camera 10 is gathered once more, finishes until all structural light stripes pattern projections.
4) structural light stripes Flame Image Process, three-dimensional coordinate point calculate and result's demonstration.
The structural light stripes image that left video camera 8 is taken is decoded according to Gray code and phase-shift coding rule, obtain the absolute phase of left video camera 8 each image slices vegetarian refreshments.Can determine the left lantern projection instrument 7 space light projecting directions of this image slices vegetarian refreshments correspondence according to the absolute phase values of each image slices vegetarian refreshments.
Image slices vegetarian refreshments position and left video camera 8 parameters can be determined the imaging straight line of left video camera 8; Left side lantern projection's instrument 7 space light projecting directions and left lantern projection instrument 7 parameters can be determined the ray cast plane of left lantern projection instrument 7; Rotate and translational shifting appearance transition matrix respectively and between the left monocular gage outfit 1 measurement coordinate system according to left video camera 8, left lantern projection instrument 7, the imaging straight line of left video camera 8 and ray cast plane conversion to the left monocular gage outfit 1 of left lantern projection instrument 7 can be measured coordinate system, try to achieve this straight line and planar intersection point, be the facial three-dimensional point in patient left side and measure locus under the coordinate system at left monocular gage outfit 1.
The analyzing and processing mode of the structural light stripes image that right photographic head 10 is taken is in full accord with the above-mentioned structural light stripes treatment of picture that left video camera 8 is taken, and finally obtains the facial three-dimensional point in patient right side locus under right monocular gage outfit 2 measurement coordinate systems.
Measure rotation and translational shifting appearance transition matrix relation between coordinate system according to left monocular gage outfit 1 and right monocular gage outfit 2, the facial three-dimensional coordinate point in patient right side is converted to left monocular gage outfit 1 to be measured under the coordinate system, or the facial three-dimensional coordinate point in patient left side is converted to right monocular gage outfit 2 measures under the coordinate systems, thereby obtain the facial three-dimensional appearance data of complete patient, and show with a cloud form on computers, be convenient to man-machine interactive operation.
Claims (4)
1. method of measuring three-dimensional feature of face on patient with defected face is characterized in that this measuring method has been used and is used for the double/single ocular white light three-dimensional measuring system that defects of patient face is repaired; The parameter of this measuring system is through the demarcation of double monocular white light three-dimensional measuring systems calibration method; The method of measuring the facial three-dimensional appearance of patient comprises the steps:
1) adjust left monocular gage outfit (1) and right monocular gage outfit (2) position and adjust left video camera (8) and right video camera (10) shooting light exposure parameter: open left lantern projection instrument (7) and right lantern projection instrument (9), projective structure striations pattern is to patient's face; Open left video camera (8) and right video camera (10) and carry out the real-time scene shooting; A control survey translation mechanism (4), with left monocular gage outfit (1) and right monocular gage outfit (2) up and down with the front and back translation, make patient's face be positioned at left video camera (8) and right video camera (10) photographed scene center simultaneously; According to structural light stripes picture quality in the photographic images, adjust left video camera (8) and right video camera (10) and take the light exposure parameter;
2) left monocular gage outfit (1) is measured: close right lantern projection instrument (9), move the grating translation mechanism (14) of left lantern projection instrument (7), left lantern projection instrument (7) projection one width of cloth structural light stripes pattern is facial to the patient left side; Left side video camera (8) collection is projected to the facial structural light stripes pattern in patient left side; If finished the projection of all structural light stripes patterns, the grating translation mechanism (14) of left lantern projection instrument (7) is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism (14) of controlling left lantern projection instrument (7) moves, throw a width of cloth structural light stripes pattern again, left video camera (8) is gathered once more, finishes until all structural light stripes pattern projections;
3) right monocular gage outfit (2) is measured: close left lantern projection instrument (7), open right lantern projection instrument (9), move the grating translation mechanism (14) of right lantern projection instrument (9), right lantern projection instrument (9) projection one width of cloth structural light stripes pattern is to patient right side face; Right video camera (10) collection projects the structural light stripes pattern of patient right side face; If finished the projection of all structural light stripes patterns, the grating translation mechanism (14) of right lantern projection instrument (9) is kept in the center; If do not finish the projection of all structural light stripes patterns, the grating translation mechanism (14) of controlling right lantern projection instrument (9) moves, throw a width of cloth structural light stripes pattern again, right video camera (10) is gathered once more, finishes until all structural light stripes pattern projections;
4) structural light stripes Flame Image Process, three-dimensional coordinate point calculate and result's demonstration:
The structural light stripes image that left video camera (8) is taken is decoded according to Gray code and phase-shift coding rule, obtain the absolute phase of each image slices vegetarian refreshments of left video camera (8); Can determine left lantern projection instrument (7) the space light projecting direction of this image slices vegetarian refreshments correspondence according to the absolute phase values of each image slices vegetarian refreshments;
Image slices vegetarian refreshments position and left video camera (8) parameter can be determined the imaging straight line of left video camera (8); Left side lantern projection's instrument (7) space light projecting direction and left lantern projection instrument (7) parameter can be determined the ray cast plane of left lantern projection instrument (7); Measure the rotation and the translational shifting appearance transition matrix of coordinate system respectively with left monocular gage outfit (1) according to left video camera (8), left lantern projection instrument (7), the imaging straight line of left video camera (8) and ray cast plane conversion to the left monocular gage outfit (1) of left lantern projection instrument (7) can be measured coordinate system, try to achieve this straight line and planar intersection point, be the facial three-dimensional point in patient left side and measure locus under the coordinate system at left monocular gage outfit (1);
The analyzing and processing mode of the structural light stripes image that right photographic head (10) is taken is in full accord with the above-mentioned structural light stripes treatment of picture that left video camera (8) is taken, and finally obtains the facial three-dimensional point in patient right side locus under right monocular gage outfit (2) measurement coordinate system;
Measure rotation and translational shifting appearance transition matrix relation between coordinate system according to left monocular gage outfit (1) and right monocular gage outfit (2), the facial three-dimensional coordinate point in patient right side is converted to left monocular gage outfit (1) to be measured under the coordinate system, or the facial three-dimensional coordinate point in patient left side is converted to right monocular gage outfit (2) measures under the coordinate system, thereby obtain the facial three-dimensional appearance data of complete patient, and show with a cloud form on computers.
2. the method for measurement three-dimensional feature of face on patient with defected face according to claim 1 is characterized in that the described double/single ocular white light three-dimensional measuring system that is used for the defects of patient face reparation comprises left monocular gage outfit (1), right monocular gage outfit (2), gage outfit support (3), gage outfit translation mechanism (4), switch board (5) and computer (6); Wherein left monocular gage outfit (1) comprises left lantern projection instrument (7) and left video camera (8), and right monocular gage outfit (2) comprises right lantern projection instrument (9) and right video camera (10); Left side lantern projection's instrument (7) and right lantern projection instrument (9) are formed by white light source (11), heat-protecting glass (12), physical code grating (13), grating translation mechanism (14), projection lens (15); White light source (11) is heat insulation through heat-protecting glass (12), and rear-projection is projected to patient's face (16) with the structural light stripes pattern of physical code grating (13) by projection lens (15) to physical code grating (13).
3. the method for measurement three-dimensional feature of face on patient with defected face according to claim 1, it is characterized in that described structural light stripes pattern is made up of 7 width of cloth Gray code patterns and 4 width of cloth phase-shift patterns, the switching of every width of cloth structural light stripes pattern is to realize by moving of control grating translation mechanism (14).
4. the method for measurement three-dimensional feature of face on patient with defected face according to claim 1, it is characterized in that the measuring system parameter that described double monocular white light three-dimensional measuring systems calibration method is demarcated comprises: the focal length and the principal point of left video camera (8) and right video camera (10), the focal length and the master phase of left side lantern projection's instrument (7) and right lantern projection instrument (9), left side video camera (8) and left lantern projection instrument (7) are measured the rotation and the translational shifting appearance transition matrix of coordinate system respectively with respect to left monocular gage outfit (1), right video camera (10) and right lantern projection instrument (9) are measured the rotation and the translational shifting appearance transition matrix of coordinate system respectively with respect to right monocular gage outfit (2), left monocular gage outfit (1) and right monocular gage outfit (2) are measured rotation and translational shifting appearance transition matrix between coordinate system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810038199A CN100581460C (en) | 2008-05-29 | 2008-05-29 | Method for measuring three-dimensional feature of face on patient with defected face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810038199A CN100581460C (en) | 2008-05-29 | 2008-05-29 | Method for measuring three-dimensional feature of face on patient with defected face |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101301200A true CN101301200A (en) | 2008-11-12 |
| CN100581460C CN100581460C (en) | 2010-01-20 |
Family
ID=40111434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810038199A Expired - Fee Related CN100581460C (en) | 2008-05-29 | 2008-05-29 | Method for measuring three-dimensional feature of face on patient with defected face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100581460C (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385708A (en) * | 2012-05-10 | 2013-11-13 | 赵平 | Measurement and image processing device applied to trunk of back |
| CN104335249B (en) * | 2012-06-29 | 2017-09-22 | 英特尔公司 | Analytical structure optical mode |
| CN108020175A (en) * | 2017-12-06 | 2018-05-11 | 天津中医药大学 | A kind of more optical grating projection binocular vision tongue body surface three dimension entirety imaging methods |
| CN108240800A (en) * | 2016-12-23 | 2018-07-03 | 致茂电子(苏州)有限公司 | The method for measurement of surface topography |
| CN108670257A (en) * | 2018-06-04 | 2018-10-19 | 浙江树人学院 | A kind of panoramic human body three-dimensional scanning means |
| CN109291794A (en) * | 2018-09-28 | 2019-02-01 | 上汽通用五菱汽车股份有限公司 | Driver status monitoring method, automobile and storage medium |
| CN110763150A (en) * | 2018-07-26 | 2020-02-07 | 王东 | Face contour measuring method |
| CN111493878A (en) * | 2020-03-17 | 2020-08-07 | 北京天智航医疗科技股份有限公司 | Optical three-dimensional scanning device for orthopedic surgery and method for measuring bone surface |
| CN111951376A (en) * | 2020-07-28 | 2020-11-17 | 中国科学院深圳先进技术研究院 | Three-dimensional object reconstruction method fusing structural light and photometry and terminal equipment |
| WO2022147670A1 (en) * | 2021-01-06 | 2022-07-14 | Jiangsu Jitri Micro-Nano Automation Institute Co., Ltd | Automatic exposure selection method for high dynamic range 3d optical measurements |
-
2008
- 2008-05-29 CN CN200810038199A patent/CN100581460C/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103385708B (en) * | 2012-05-10 | 2015-09-23 | 赵平 | A kind of measurement for back trunk and image processing apparatus |
| CN103385708A (en) * | 2012-05-10 | 2013-11-13 | 赵平 | Measurement and image processing device applied to trunk of back |
| CN104335249B (en) * | 2012-06-29 | 2017-09-22 | 英特尔公司 | Analytical structure optical mode |
| CN108240800A (en) * | 2016-12-23 | 2018-07-03 | 致茂电子(苏州)有限公司 | The method for measurement of surface topography |
| CN108020175A (en) * | 2017-12-06 | 2018-05-11 | 天津中医药大学 | A kind of more optical grating projection binocular vision tongue body surface three dimension entirety imaging methods |
| CN108020175B (en) * | 2017-12-06 | 2019-12-17 | 天津中医药大学 | multi-grating projection binocular vision tongue surface three-dimensional integral imaging method |
| CN108670257A (en) * | 2018-06-04 | 2018-10-19 | 浙江树人学院 | A kind of panoramic human body three-dimensional scanning means |
| CN110763150B (en) * | 2018-07-26 | 2021-05-25 | 王东 | Face contour measuring method |
| CN110763150A (en) * | 2018-07-26 | 2020-02-07 | 王东 | Face contour measuring method |
| CN109291794A (en) * | 2018-09-28 | 2019-02-01 | 上汽通用五菱汽车股份有限公司 | Driver status monitoring method, automobile and storage medium |
| CN111493878A (en) * | 2020-03-17 | 2020-08-07 | 北京天智航医疗科技股份有限公司 | Optical three-dimensional scanning device for orthopedic surgery and method for measuring bone surface |
| CN111951376A (en) * | 2020-07-28 | 2020-11-17 | 中国科学院深圳先进技术研究院 | Three-dimensional object reconstruction method fusing structural light and photometry and terminal equipment |
| WO2022147670A1 (en) * | 2021-01-06 | 2022-07-14 | Jiangsu Jitri Micro-Nano Automation Institute Co., Ltd | Automatic exposure selection method for high dynamic range 3d optical measurements |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100581460C (en) | 2010-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100581460C (en) | Method for measuring three-dimensional feature of face on patient with defected face | |
| CN107167093B (en) | A kind of the combined type measuring system and measurement method of laser line scanning and shadow Moire | |
| CN100528079C (en) | Double/single ocular white light three-dimensional measuring system for repairing defects of patient face | |
| CN102008282B (en) | Number stamp intraoral scanner and oral cavity internal surface topography image real-time reconstructing system | |
| CN102222363B (en) | Method for fast constructing high-accuracy personalized face model on basis of facial images | |
| CN103528543A (en) | System calibration method for grating projection three-dimensional measurement | |
| WO2016138758A1 (en) | Calibration method of telecentric imaging three-dimensional shape measurement system | |
| KR102018386B1 (en) | Method and system for indicating light direction for a volume-rendered image | |
| Bhatia et al. | Quantification of facial surface change using a structured light scanner | |
| CN103220964B (en) | Dental x-ray device with imaging unit for surface imaging, and method for generating an x-ay of a patient | |
| CN109475394A (en) | Spatial digitizer and the artifact processing unit (plant) for utilizing above-mentioned spatial digitizer | |
| CN105046746A (en) | Digital-speckle three-dimensional quick scanning method of human body | |
| CN105806257B (en) | A kind of high reflection body surface light field deviation art measuring system and method | |
| CN106510099A (en) | Full-automatic complete shoe tree three-dimensional data measuring device and method | |
| CN106580506B (en) | Timesharing 3 D scanning system and method | |
| CN206311076U (en) | Very fast 3D anthropometric scanning instrument based on speckle | |
| CN109974625A (en) | A kind of color body structural light three-dimensional measurement method based on form and aspect optimization gray scale | |
| CN112712585B (en) | Three-dimensional imaging system and method based on arc binary coding phase shift fringe projection | |
| CN108332684A (en) | A kind of measuring three-dimensional profile method based on Structured Illumination microtechnic | |
| CN201899476U (en) | Digital impression intraoral scanner and intraoral surface morphology image real-time reconstruction system | |
| JP2004318612A (en) | Method, device and program for synthesizing image, and method, device, and program for rendering three-dimensional model | |
| CN106546193A (en) | A kind of high reflection body surface three-dimensional measuring method and system | |
| JP6293122B2 (en) | How to measure dental conditions | |
| CN108175535A (en) | A kind of dentistry spatial digitizer based on microlens array | |
| CN206324331U (en) | Full-automatic complete shoe tree three-dimensional vision information device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100120 Termination date: 20120529 |