CN104107048A - Musculus facialis three-dimensional motion measuring device on basis of motion capture - Google Patents
Musculus facialis three-dimensional motion measuring device on basis of motion capture Download PDFInfo
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- CN104107048A CN104107048A CN201410074643.0A CN201410074643A CN104107048A CN 104107048 A CN104107048 A CN 104107048A CN 201410074643 A CN201410074643 A CN 201410074643A CN 104107048 A CN104107048 A CN 104107048A
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Abstract
The invention relates to a musculus facialis three-dimensional motion measuring device on the basis of motion capture. The musculus facialis three-dimensional motion measuring device comprises a fixed head support and a motion capture device, and the fixed head support is fixed on a skull through a plurality of bone fulcrums of the skull of a measured user. The motion capture device comprises motion capture cameras arranged in front of the face of the measured user and used for capturing relative relation of various facial motion observation points on the face and the fixed head support, and the motion capture device calculates musculus facialis static parameters and dynamic parameters of facial motion observation points according to the relative relation. The fixed head support can be used as an 'absolute' reference system for reflecting the static conditions of the musculus facialis and the dynamic conditions of the facial observation points, is fixed through the bone fulcrums of the skull and can be stably fixed on the skull to move along with the skull without affection of facial expression. Further, the static parameters of the musculus facialis and the dynamic parameters of the facial motion observation points can be quickly, conveniently and accurately measured, and objective evaluation of the motion function of the musculus facialis is realized.
Description
Technical field
The present invention relates to field of medical technology, relate in particular to a kind of facial muscle three-dimensional motion measurement device based on motion-captured.
Background technology
Facial paralysis not only has a strong impact on people's outward appearance, also can cause the change of its social behavior, work, life.But shortage accurately, objectively facial nerve function evaluation system is restricting diagnosis and treatment and the research of facial paralysis.In the actual clinical work of facial paralysis and clinical research, also have larger difference, clinical position is generally qualitative and flexibly, and clinical research should be quantitative and " that clinches it ".
According to this difference, facial nerve function evaluation system can be divided into subjective assessment system and objective evaluation system.Subjective assessment system applies is simple, quick, is convenient to clinical use, but relies on observer's subjective observation, has larger subjective bias, and repeatable poor, classification is rough, insensitive to observation of curative effect.
Objective evaluation system can roughly be divided into based on two dimensional image with based on the large class of 3-D view two.Two-dimension analysis system is compared with subjective measurement system, and objectivity and reliability are all greatly improved.But two-dimensional measurement is compared with three-dimensional measurement, and two dimensional image only can reflect the motion conditions of motor point subpoint in the plane.The two-dimensional measurement in the time measuring point of observation motion amplitude of two dimension facial muscle analytical system and three-dimensional facial muscle analytical system can be underestimated and reaches 43%.Two-dimensional measurement has delivery error, and iff only seesawing, that this delivery error is 100%.
For three-dimensional facial muscle analytical system, three-dimensional static image is owing to lacking time shaft, the dynamic indicator such as speed, acceleration can not be provided, and can infer for the measurement of the dynamic indicator such as translational speed and acceleration the power that tissue produces, significant for the function that judges facial muscle and nervus facialis.
Analytical method based on Three-Dimensional Dynamic image can provide all dynamic parameters such as static measurement and facial muscle movement observation point displacement, direction, speed, acceleration, can reflect the function of facial muscle, nervus facialis by analyzing these parameters.In recent years, movement capturing technology has been widely used in multiple fields.Wherein, optical profile type is motion-captured can noncontact and little interference by environment, and the most applicable face is measured application, is utilized by some facial paralysis researcher.
Frey etc. have researched and developed a set of 3 D video analytical system, and this system comprises two sides mirror, a calibrated mount, a computer and a commercial camera.Before test, demarcate with calibrated mount, subject's head completes instruction action before being placed in two minute surfaces.After camera acquisition corresponding signal, input computer, after handmarking, analyze.This system realizes the three-dimensional reconstruction to point of observation by two sides mirror, utilizes relativeness computed range and the speed of each point of observation and calibrated mount.But this system post-processed work is huge, completes a number of cases and on average need to spend 5 hours according to one's analysis.Along with technological progress, this system automation degree improves greatly afterwards.How much be unable to estimate but this system mirror distortion has, application surface standard laid down by the ministries or commissions of the Central Government note brought error as a reference point does not take into full account yet.
Summary of the invention
The object of the invention is to propose a kind of facial muscle three-dimensional motion measurement device based on motion-captured, can be fast, carry out easily and accurately the measurement of the dynamic parameter of facial muscle static parameter and facial movement observation point, realize the objective evaluation of opposite myokinesis function.
For achieving the above object, the invention provides a kind of facial muscle three-dimensional motion measurement device based on motion-captured, comprise the fixing headstock and motion capture device, the described fixing headstock is fixed on described head by multiple bone fulcrums of the head of measurand, described motion capture device comprises many motion capture cameras, and be arranged on the facial front of measurand, for catching each facial movement point of observation on described face and the relativeness of the described fixing headstock, and according to the dynamic parameter of described relativeness calculating facial muscle static parameter and facial movement observation point.
Further, the described fixing headstock comprises headstock support fixed structure, on described headstock support fixed structure, be formed with catch for described motion capture device for defining the reference feature of facial coordinate system.
Further, the described fixing headstock comprises headstock support fixed structure and frame of axes, and described frame of axes is fixed on described headstock support fixed structure, for defining facial coordinate system, and catches for described motion capture device.
Further, described headstock support fixed structure comprises the sagittal plain headstock and the Coronal headstock of mutual splicing, is equipped with stop section and the adjustment part of adjusting described stop section for supporting the bone fulcrum that stops described head on the described Coronal headstock and the sagittal plain headstock.
Further, it is that occipital bone is prominent grand that bone fulcrum is only supported in the stop section of the described sagittal plain headstock, and it is temporo occipitalia skin thinnest part that bone fulcrum is only supported in the stop section of the described Coronal headstock.
Further, described frame of axes comprises inverted T shape frame and three witch balls, the bottom of described inverted T shape frame is fixed on the front end of the described sagittal plain headstock, described three witch balls are separately fixed at three hack lever end points of described inverted T shape frame, the facial coordinate system of definition taking described three witch balls as reference, and catch for described motion capture device.
Further, described frame of axes comprises inverted T shape frame and three selfluminous devices, the bottom of described inverted T shape frame is fixed on the front end of the described sagittal plain headstock, described three selfluminous devices are separately fixed at three hack lever end points of described inverted T shape frame, the facial coordinate system of definition taking described three selfluminous devices as reference, and catch for described motion capture device.
Further, described motion capture device also comprises that video camera regulates support, for described many motion capture cameras are carried out to the adjusting at least one direction, each facial movement point of observation on described face can be caught by least three motion capture cameras.
Further, described video camera regulates support to comprise A-frame, expansion link, fixed platform, vertical rod, and multiple rotating circular disks, horizontal arm and three axle The Cloud Terraces, described A-frame sets up on the ground, described expansion link one end is fixed on the top of described A-frame, the other end is fixedly connected with described fixed platform, by the flexible adjusting that realizes described fixed platform in the vertical direction of described expansion link, described vertical rod is fixed on the upper end of described fixed platform, many group rotating circular disks are separately positioned on described vertical rod along the length direction of described vertical rod, can rotate with respect to described vertical rod, one end of at least one horizontal arm is fixed on described rotating circular disk, can turn to preset angles with described rotating circular disk, at least one three axle The Cloud Terrace is arranged on described horizontal arm, described many motion capture cameras are separately positioned on the multiple three axle The Cloud Terraces on horizontal arm.
Further, be symmetrical " L " type at multiple three axle The Cloud Terraces of described vertical rod both sides.
Further, also comprise synchronous multi-line controller, communicate and be connected with described many motion capture cameras, guarantee that by the control of described synchronous multi-line controller each facial movement point of observation on described face can be caught by least three motion capture cameras.
Further, described many motion capture cameras are near-infrared charge coupled cell video camera.
Further, described motion capture cameras also carries infrared light LED light source.
Further, also comprise Ethernet switch and data processing platform (DPP), described synchronous multi-line controller is connected with described Ethernet switch, described Ethernet switch is connected to described data processing platform (DPP), and described synchronous multi-line controller is sent to described data processing platform (DPP) by the signal of telecommunication of the optical signal conversion being captured by described motion capture cameras by described Ethernet switch and carries out facial Three-Dimensional Dynamic image reconstruction and facial motion analysis.
Based on technique scheme, utilization of the present invention is arranged on many motion capture cameras in the facial front of measurand and carrys out capturing facial point of observation and pass through the relativeness between the fixing fixing headstock of bone fulcrum, wherein fix the headstock and can be used as the dynamic situation that " definitely " referential reflects the static situation of facial muscle and facial point of observation, and the fixing headstock is fixed by multiple bone fulcrums of head, can be stable be fixed on head, move along with head motion, and can not be subject to the impact of facial expression, and then can be quick, convenient, carry out exactly the measurement of the dynamic parameter of facial muscle static parameter and facial movement observation point, realize the objective evaluation of opposite myokinesis function.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 the present invention is based on the view of fixing the headstock in an embodiment of motion-captured facial muscle three-dimensional motion measurement device and be fixed on human head.
Fig. 2 the present invention is based on the structural representation of fixing the Coronal headstock of headstock supporting adn fixing device in the headstock in motion-captured facial muscle three-dimensional motion measurement device embodiment.
Fig. 3 the present invention is based on the structural representation of fixing the sagittal plain headstock of headstock supporting adn fixing device in the headstock in motion-captured facial muscle three-dimensional motion measurement device embodiment.
Fig. 4 the present invention is based in motion-captured facial muscle three-dimensional motion measurement device embodiment, to fix the sagittal plain headstock of headstock supporting adn fixing device in the headstock and the structural representation of Coronal headstock stitching position.
Fig. 5 the present invention is based on the structural representation of fixing frame of axes in the headstock in motion-captured facial muscle three-dimensional motion measurement device embodiment.
Fig. 6 is the structural representation that the present invention is based on motion capture device in motion-captured facial muscle three-dimensional motion measurement device embodiment.
Fig. 7 the present invention is based in motion-captured facial muscle three-dimensional motion measurement device embodiment the structural representation of motion capture cameras in motion capture device.
Fig. 8 the present invention is based on the structural representation that motion capture device in motion-captured facial muscle three-dimensional motion measurement device embodiment connects Ethernet switch and data processing platform (DPP) composition analysis system.
Detailed description of the invention
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Current facial muscle three-dimensional motion quantitative analysis is to utilize with respect to mankind's head coronalplane, sagittal plane, horizontal plane Describing Motion direction, the space motion of Binding distance parametric description anthroposcopy point.Through computing, show that dynamic parameters such as evaluating movement velocity that facial muscle point of observation motion index is the facial point of observation that is benchmark description based on horizontal plane, sagittal plane, coronalplane, acceleration, the direction of motion, distance and bilateral face corresponding point static state symmetric parameter are at three-dimensional absolute value.
Consider in prior art and have larger error taking facial markers as reference, and for the facial movement point of observation of measurand, face can move along with the head motion of measurand, and be not subject to the impact of facial movement, therefore the head of sclerotin can provide reliable and stable facial basis reference, in order to make head realize collectable basis reference, can utilize the headstock being fixed on head indirectly to realize.Under this thinking, the present invention is based on motion-captured facial muscle three-dimensional motion measurement device and comprise the fixing headstock and motion capture device, wherein fixing the headstock is fixed on described head by multiple bone fulcrums of the head of measurand, and motion capture device comprises many motion capture cameras, be arranged on the facial front of measurand, be used for catching each facial movement point of observation on described face and the relativeness of the described fixing headstock, and calculate the dynamic parameter of facial muscle static parameter and facial movement observation point according to this relativeness.
As shown in Figure 1, for the present invention is based on the view of fixing the headstock in an embodiment of motion-captured facial muscle three-dimensional motion measurement device and be fixed on human head.In Fig. 1, can see, the fixing headstock 200 is fixed by least three bone fulcrums on the head 100 of measurand, so just makes the fixing headstock 200 to move with head 100, and can not be subject to the impact of facial muscle movements.
The form of the fixing headstock 200 can have multiple, be not limited to the implementation of the fixing headstock shown in Fig. 1-5, as long as the bone fulcrum with head is fixed, and there is any structure for the reference feature that defines facial coordinate system that can capture for motion capture device and all can be applicable to the fixing headstock of the present invention, for example at least cover is established the fixing headstock of helmet-type etc. of head part, does not enumerate here.
Can see in conjunction with Fig. 1-Fig. 5, this fixing headstock 200 comprises headstock support fixed structure and frame of axes 230.Wherein frame of axes 230 is fixed on headstock support fixed structure, for defining facial coordinate system, and catches for motion capture device.In another embodiment, special frame of axes also can be set, but on headstock support fixed structure, be formed with catch for described motion capture device for defining the reference feature of facial coordinate system.
Can see with reference to figure 1-Fig. 5, the headstock support fixed structure of this fixing headstock 200 comprises the sagittal plain headstock 220 and the Coronal headstock 210 of mutual splicing, and on the Coronal headstock 220 and the sagittal plain headstock 210, is equipped with for supporting the only stop section of the bone fulcrum of head and the adjustment part of adjustment stop section.Specifically, in Fig. 2, the Coronal headstock 210 has the support 211 that is inverse u shape, and two sides of support 211 are corresponding to two side directions of head.Two sides at support 211 offer respectively groove 214, and T-shaped screw rod 213 passes this groove 214, and is fixed by wing nut 215 and round nut 216.Wherein the T shape of T-shaped screw rod 213 part is just as supporting the only stop section of the bone fulcrum of head, by groove 214, wing nut 215 and round nut 216, T-shaped screw rod 213 is adjusted to entirety and formed adjustment part, can realize the position adjustment axially and in groove 214 at self of T-shaped screw rod 213, to make T-shaped screw rod 213 locate accurately and be fixed on the bone fulcrum of head, and adjust to the comfort conditions of measurand.
In Fig. 3, the sagittal plain headstock 220 has the support 221 of a bending, this dogleg section corresponding to brain rear to.Offer groove 224 in the dogleg section of support 221, T-shaped screw rod 223 passes this groove 224, and is fixed by wing nut 225 and round nut 226.Wherein the T shape of T-shaped screw rod 223 part is just as supporting the only stop section of the bone fulcrum of head, by groove 224, wing nut 225 and round nut 226, T-shaped screw rod 223 is adjusted to entirety and formed adjustment part, can realize the position adjustment axially and in groove 224 at self of T-shaped screw rod 223, to make T-shaped screw rod 223 locate accurately and be fixed on the bone fulcrum of head, and adjust to the comfort conditions of measurand.
At the splicing position of the support 221 of the sagittal plain headstock 220 and the support 211 of the Coronal headstock 210, can be by the square copper billet 212 on support 211 through the groove 222(on support 221 referring to Fig. 4), recycling screw rod is fixed to realize the splicing the sagittal plain headstock 220 and the Coronal headstock 210 through square copper billet 212.
In the headstock support fixed structure of foregoing description, the stop section of the sagittal plain headstock 220 supports bone fulcrum only preferably but to be not limited to occipital bone prominent grand, and the stop section of the Coronal headstock 210 is supported the bone fulcrum stopping and is preferably but is not limited to temporo occipitalia skin thinnest part.Operator can select applicable bone fulcrum as required, comprises more bone fulcrum or bone fulcrum still less etc.
Front end corresponding to forehead position on the sagittal plain headstock 220 is also fixed with frame of axes 230, in conjunction with Fig. 5, this frame of axes 230 comprises inverted T shape frame 231 and three witch balls 232, the bottom of inverted T shape frame 231 is fixed on the front end of the sagittal plain headstock 220, three witch balls 232 are separately fixed at three hack lever end points of inverted T shape frame 231, the facial coordinate system of definition taking three witch balls as reference, and catch for motion capture device.And the light that motion capture cameras can reflex to according to witch ball in the time catching forms facial coordinate system.Except adopting witch ball, can also adopt selfluminous device, for example three self luminous infrared light LED lamps etc.
As shown in Figure 6, for the present invention is based on the structural representation of motion capture device in motion-captured facial muscle three-dimensional motion measurement device embodiment.Motion capture cameras can regulate support to regulate the corresponding position of each motion capture cameras by a video camera as we can see from the figure, this adjusting can comprise that video camera regulates support to carry out the adjusting at least one direction to many motion capture cameras, to each facial movement point of observation on face can be caught by least three motion capture cameras, thereby utilize multiple cameras the same optical signal of measurand face to be carried out to the seizure of different angles, thereby realize the dynamic analysis to light source motion.
In Fig. 6, video camera regulates support to comprise A-frame 310, expansion link 320, fixed platform 330, vertical rod 340, and multiple rotating circular disk 350, horizontal arm 360 and three axle The Cloud Terraces 370.A-frame 310 sets up on the ground, can form on ground leg-of-mutton stable support.Expansion link 320 one end are fixed on the top of A-frame 310, and the other end is fixedly connected with fixed platform 330, by the flexible adjusting that can realize fixed platform 330 in the vertical directions of expansion link 320, and vertical rod 340 is fixed on the upper end of fixed platform 330, many group rotating circular disks 350 are separately positioned on vertical rod 340 along the length direction of vertical rod 340, and rotating circular disk 350 can be with respect to the angle of vertical rod 340 independent rotation or synergic rotation needs.Have at least one end of a horizontal arm 360 to be fixed on rotating circular disk 350, can turn to preset angles with rotating circular disk 350, and have at least three axle The Cloud Terraces 370 to be arranged on horizontal arm 360.There is as can see from Figure 6 part of horizontal arm 360 to be provided with three axle The Cloud Terraces 370, also have part of horizontal arm 360 to be provided with two three axle The Cloud Terraces 370.And have many motion capture cameras 380 to be separately positioned on the multiple three axle The Cloud Terraces 370 on horizontal arm 360.
In Fig. 7, illustrate that motion capture cameras 380 is arranged on the structure on three axle The Cloud Terraces 370, many motion capture cameras can adopt the kinematic parameter that can capture facial muscle static nature and facial movement observation point, and on the fixing headstock, can form the various existing video camera of the fixed reference feature of facial coordinate system, for example preferably adopt near-infrared charge coupled cell (CCD) video camera, there is frequency acquisition 60fps, adopt fixed focus lens.
For the frame of axes that adopts witch ball, can also be further the infrared light LED light source 382 that can send infrared light be set around the photographic head 381 of motion capture cameras 380, applies the infrared light that this light source sends and can avoid light to change the impact bringing as light source.
The structure that regulates support by this video camera, motion capture cameras can be adjusted in multiple directions, can be caught by least three motion capture cameras with each facial movement point of observation meeting on face.Further, preferably multiple three axle The Cloud Terraces of vertical rod 340 both sides are arranged to symmetry " L " type, and between the horizontal arm 360 of both sides in obtuse angle, can obtain like this and better catch effect.
Video camera regulates support to be regulated voluntarily by operator, also can utilize the means of computer to regulate, and provides to finish and close the adjustment structure of computer means and a kind of network structure roughly with network platform composition analysis system in Fig. 8.Wherein, facial muscle three-dimensional motion measurement device of the present invention has also comprised synchronous multi-line controller 400, communicate and be connected with many motion capture cameras, guarantee that by the control of synchronous multi-line controller 400 each facial movement point of observation on face can be caught by least three motion capture cameras.The control here both can comprise the control that video camera is regulated to each adjustable structure on support, also can comprise the control to motion capture cameras itself.
In addition, can further include Ethernet switch 500 and data processing platform (DPP) (not shown), synchronous multi-line controller 400 is connected with Ethernet switch 500, and Ethernet switch 500 is connected to data processing platform (DPP), synchronous multi-line controller 400 can be sent to data processing platform (DPP) by Ethernet switch 500 by the signal of telecommunication of the optical signal conversion being captured by moving seizure video camera and carry out facial Three-Dimensional Dynamic image reconstruction and facial motion analysis.In addition, in Fig. 8, synchronous multi-line controller 400 also can be directly connected to local computer 600, is shown and operation interface is provided by computer 600, and simultaneous computer 600 can connect printer 700, and facial muscle still image is printed.
According to the illustrated above embodiment that the present invention is based on motion-captured facial muscle three-dimensional motion measurement device, provide the specific works situation of certain embodiment in the time of the three-dimensional motion of dynamic analysis facial muscle below, as follows:
Before test, first the T-shaped screw rod of fixing headstock both sides is supported and terminates in temporo occipitalia skin thinnest part, fixing headstock rear end supports that to terminate in occipital bone prominent grand, then adjusts wing nut and round nut to ensure " definitely motionless " of the comfortable and fixing headstock of experimenter according to concrete head size.Center of face is placed in video camera and regulates the front 80cm of 6 motion capture cameras on support, and overhead height 130cm, ensures that facial each movement observation point all can be caught by least 3 video cameras.After test starts, the infrared light that the infrared light LED light source that motion capture cameras carries sends enters photographic head after the reflection of face and witch ball, motion capture cameras is imported synchronous multi-line controller into after transferring optical signal to the signal of telecommunication, and then import computer or data processing platform (DPP) into, carry out facial Three-Dimensional Dynamic image reconstruction and facial motion analysis according to this signal at computer or data processing platform (DPP).
The present invention is based on motion-captured facial muscle three-dimensional motion measurement device and can be widely used in the occasion that various mankind's face analysis detect, be the facial muscle three-dimensional motion measurement of other species and the occasion of analyzing but also go for measurand, describe in detail no longer one by one here.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement the specific embodiment of the present invention; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request protection of the present invention.
Claims (14)
1. the facial muscle three-dimensional motion measurement device based on motion-captured, comprise the fixing headstock and motion capture device, the described fixing headstock is fixed on described head by multiple bone fulcrums of the head of measurand, described motion capture device comprises many motion capture cameras, and be arranged on the facial front of measurand, for catching each facial movement point of observation on described face and the relativeness of the described fixing headstock, and according to the dynamic parameter of described relativeness calculating facial muscle static parameter and facial movement observation point.
2. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 1, the wherein said fixing headstock comprises headstock support fixed structure, on described headstock support fixed structure, be formed with catch for described motion capture device for defining the reference feature of facial coordinate system.
3. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 1, the wherein said fixing headstock comprises headstock support fixed structure and frame of axes, described frame of axes is fixed on described headstock support fixed structure, be used for defining facial coordinate system, and catch for described motion capture device.
4. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 3, wherein said headstock support fixed structure comprises the sagittal plain headstock and the Coronal headstock of mutual splicing, is equipped with stop section and the adjustment part of adjusting described stop section for supporting the bone fulcrum that stops described head on the described Coronal headstock and the sagittal plain headstock.
5. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 4, it is that occipital bone is prominent grand that bone fulcrum is only supported in the stop section of the wherein said sagittal plain headstock, and it is temporo occipitalia skin thinnest part that bone fulcrum is only supported in the stop section of the described Coronal headstock.
6. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 4, wherein said frame of axes comprises inverted T shape frame and three witch balls, the bottom of described inverted T shape frame is fixed on the front end of the described sagittal plain headstock, described three witch balls are separately fixed at three hack lever end points of described inverted T shape frame, the facial coordinate system of definition taking described three witch balls as reference, and catch for described motion capture device.
7. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 4, wherein said frame of axes comprises inverted T shape frame and three selfluminous devices, the bottom of described inverted T shape frame is fixed on the front end of the described sagittal plain headstock, described three selfluminous devices are separately fixed at three hack lever end points of described inverted T shape frame, the facial coordinate system of definition taking described three selfluminous devices as reference, and catch for described motion capture device.
8. according to the arbitrary described facial muscle three-dimensional motion measurement device based on motion-captured of claim 2～7, wherein said motion capture device also comprises that video camera regulates support, for described many motion capture cameras are carried out to the adjusting at least one direction, each facial movement point of observation on described face can be caught by least three motion capture cameras.
9. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 8, wherein said video camera regulates support to comprise A-frame, expansion link, fixed platform, vertical rod, and multiple rotating circular disks, horizontal arm and three axle The Cloud Terraces, described A-frame sets up on the ground, described expansion link one end is fixed on the top of described A-frame, the other end is fixedly connected with described fixed platform, by the flexible adjusting that realizes described fixed platform in the vertical direction of described expansion link, described vertical rod is fixed on the upper end of described fixed platform, many group rotating circular disks are separately positioned on described vertical rod along the length direction of described vertical rod, can rotate with respect to described vertical rod, one end of at least one horizontal arm is fixed on described rotating circular disk, can turn to preset angles with described rotating circular disk, at least one three axle The Cloud Terrace is arranged on described horizontal arm, described many motion capture cameras are separately positioned on the multiple three axle The Cloud Terraces on horizontal arm.
10. the facial muscle three-dimensional motion measurement device based on motion-captured according to claim 9, is wherein symmetrical " L " type at multiple three axle The Cloud Terraces of described vertical rod both sides.
The 11. facial muscle three-dimensional motion measurement devices based on motion-captured according to claim 8, wherein also comprise synchronous multi-line controller, communicate and be connected with described many motion capture cameras, guarantee that by the control of described synchronous multi-line controller each facial movement point of observation on described face can be caught by least three motion capture cameras.
The 12. facial muscle three-dimensional motion measurement devices based on motion-captured according to claim 1, wherein said motion capture cameras is near-infrared charge coupled cell video camera.
The 13. facial muscle three-dimensional motion measurement devices based on motion-captured according to claim 12, wherein said motion capture cameras also carries infrared light LED light source.
The 14. facial muscle three-dimensional motion measurement devices based on motion-captured according to claim 11, wherein also comprise Ethernet switch and data processing platform (DPP), described synchronous multi-line controller is connected with described Ethernet switch, described Ethernet switch is connected to described data processing platform (DPP), and described synchronous multi-line controller is sent to described data processing platform (DPP) by the signal of telecommunication of the optical signal conversion being captured by described motion capture cameras by described Ethernet switch and carries out facial Three-Dimensional Dynamic image reconstruction and facial motion analysis.
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| CN201410074643.0A CN104107048B (en) | 2014-03-03 | Equipment is measured based on motion-captured facial muscle three-dimensional motion |
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