CN207148496U - A kind of active optical motion capture system - Google Patents
A kind of active optical motion capture system Download PDFInfo
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- CN207148496U CN207148496U CN201721138015.XU CN201721138015U CN207148496U CN 207148496 U CN207148496 U CN 207148496U CN 201721138015 U CN201721138015 U CN 201721138015U CN 207148496 U CN207148496 U CN 207148496U
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Abstract
The utility model discloses a kind of active optical motion capture system, including camera, interchanger, main frame and the active light-emitting device being sequentially connected with, interchanger are used to transmit the shutter of camera and exposure signal to main frame；Main frame is used to powering to active light-emitting device and controlling lighting and extinguishing for active light-emitting device；Active light-emitting device is changed by light identity information passing to camera as mark point.Active optical motion capture system provided by the utility model, passive witch ball is replaced as mark point using active light-emitting device, the infrarede emitting diode of active light-emitting device launches infrared light when lighting so that camera can also perceive mark point at a distance；And by means of communication, the shutter of camera and exposure information are passed to main frame by interchanger, and main frame controls active light-emitting device to realize that infrarede emitting diode sequential is synchronous with camera shutter again, effectively improves the accuracy of identification and stability of motion capture system.
Description
Technical field
The utility model belongs to electronic information technical field, and in particular to a kind of active optical motion capture system.
Background technology
Motion capture is accurate measurement, movement locus or posture of the record object in true three-dimension space in real time, and
The new and high technology of each moment motion state of moving object is rebuild in virtual three-dimensional space.
Optical profile type motion capture is to be based on principle of computer vision, by multiple high speed cameras from different perspectives to target signature
The monitoring and tracking of point carry out the technology of motion capture.In theory for any one point in space, as long as it can be simultaneously
For two camera findings, it is possible to determine this moment position of point in space.When camera is continuous with sufficiently high speed
During shooting, the movement locus of the point is can be obtained by from image sequence.This kind of system acquisition sensor is generally all optics phase
Machine, unlike sensor of interest type differ, one kind is the not extra addition mark on object, based on two dimensional image feature or
The joint information of three-dimensional shape features extraction can be collectively referred to as unmarked point type optics motion capture as detection target, this kind of system
System, another kind are that as sensor of interest, this kind of system is referred to as marking the action of point type optics to catch binding mark point on object
Catch.
Point type optics motion capture system is marked typically to be passed by optical indicia point (Markers), motion capture cameras, signal
Transfer device and data processing stations composition, the optical profile type motion capture system that people often claim typically refer to this kind of mark point type
Motion capture system.Marker points, multiple motion capture phases are pasted in moving object key position (joint of such as human body)
Real-time detection Marker points, real-time data transmission to data processing stations are smart according to principle of triangulation from different perspectives for machine
True volume calculates the space coordinates of Marker points, then the 6DOF motion of bone is calculated from biokinetics principle.
The Marker points of existing optics motion capture system are typically a kind of passive witch ball, and it is each main to be pasted on human body
Joint part, camera is reflexed to through witch ball by the LED illumination light sent on motion capture camera lens, carry out Marker detection and
Space orientation.Its major advantage is technology maturation, and precision is high, sample rate is high, motion capture is accurate, and performance and using flexible are fast
Victory, Marker points can very arbitrarily increase and arrangement, the scope of application be very wide at low cost；Shortcoming be by sunlight interference in visual field not
Suitable for outdoor utility, Marker points easily obscure the data cleansing for needing that manual intervention is carried out in post processing, and workload is big.And
And as the increase of camera and witch ball distance, reflected signal weaken, it is unfavorable for locating mark points, also it is unfavorable for mark point knowledge
Not.
Utility model content
The purpose of this utility model is to solve the above problems, there is provided one kind replaces passive witch ball using active light-emitting device
Active optical motion capture system.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of active optical motion capture system,
Including camera, interchanger, main frame and the active light-emitting device being sequentially connected with, interchanger is used for the shutter and exposure signal of camera
Transmit to main frame；Main frame is used to powering to active light-emitting device and controlling lighting and extinguishing for active light-emitting device；Actively send out
Electro-optical device is changed by light identity information passing to camera as mark point.
Preferably, the main frame includes control module and the wireless communication module, the battery that are connected respectively with control module
And judge module, battery are used to integrally be powered main frame, wireless communication module carries out radio communication with interchanger, by camera
Shutter and exposure signal transmit to control module, judge module reads the shutter and exposure signal of camera from control module, and
The shutter for judging camera is opening or closing, and will determine that result is transferred to control module.
If the shutter of camera is open mode, control module provides a drive signal to be made actively to active light-emitting device
Light-emitting device is lighted；If the shutter of camera is closed mode, control module provides another drive signal and gives active luminous dress
Putting extinguishes active light-emitting device.
Main frame can also set corresponding starting module, memory module, computing module, display module, voice module etc..
Preferably, the active light-emitting device includes the controller being sequentially connected with, current-limiting resistance and infrarede emitting diode,
Controller is connected with main frame.Controller provides the drive signal of infrarede emitting diode, and control infrarede emitting diode is in camera
Shutter is lighted when opening, is extinguished when camera shutter is closed；Current-limiting resistance is used to control infrarede emitting diode
Luminous intensity, required with adaptive system.
Preferably, the quantity of the infrarede emitting diode is more than or equal to two, and each infrarede emitting diode lights
End direction differs.
Preferably, the active light-emitting device is connected with the interface of main frame, and the interface of main frame is USB interface, Mini-USB
Interface, Type-C interfaces or Lightening interfaces.Active light-emitting device can directly be powered by the interface of main frame, be added without another
Electric supply installation.
The beneficial effects of the utility model are：
A kind of active optical motion capture system provided by the utility model, it is passive to be replaced using active light-emitting device
Witch ball launches infrared light as mark point, the infrarede emitting diode of active light-emitting device when lighting so that camera exists
It can also perceive mark point at a distance；And by means of communication, the shutter of camera and exposure information are passed to master by interchanger
Machine, main frame control active light-emitting device to realize that infrarede emitting diode sequential is synchronous with camera shutter again, infrarede emitting diode
Light when shutter is opened, closed when shutter close, energy consumption and can be saved and extend infrarede emitting diode
Working life, effectively improve the accuracy of identification and stability of motion capture system.
Brief description of the drawings
Fig. 1 is the structure principle chart of active optical motion capture system in the utility model embodiment one.
Fig. 2 is the principle schematic diagram of main frame in the utility model embodiment one.
Embodiment
The utility model is described further with specific embodiment below in conjunction with the accompanying drawings：
Implement one
As shown in figure 1, a kind of active optical motion capture system that the present embodiment provides, including the phase being sequentially connected with
Machine, interchanger, main frame and active light-emitting device, interchanger are used to transmit the shutter of camera and exposure signal to main frame；Main frame
For lighting and extinguishing for active light-emitting device to be powered and controlled to active light-emitting device；Active light-emitting device is as mark
Point, changed by light and identity information is passed into camera.
As shown in Fig. 2 main frame includes control module and the starting module, the radio communication mold that are connected respectively with control module
Block, battery and judge module, battery are used to integrally be powered main frame, and starting module is used for the switch of control main frame, wirelessly
Communication module carries out radio communication with interchanger.
As shown in figure 1, active light-emitting device includes the controller being sequentially connected with, current-limiting resistance and the pole of infraluminescence two
Pipe, controller are connected with the control module of main frame.
In the present embodiment, main frame is Backpack type computer, wireless communication module and the interchanger channel radio of Backpack type computer
Letter, active light-emitting device are plugged in the USB interface of Backpack type computer, the USB interface that active light-emitting device passes through Backpack type computer
Directly power and carry out digital independent.
Because Backpack type computer is easy to carry, so that the setting of Backpack type computer and active light-emitting device is cleverer
Living, human body can directly bear Backpack type computer, and the active light-emitting device being connected with Backpack type computer directly is pasted on into people
Body, make it have the convenience as passive witch ball.
The course of work of above-mentioned active optical motion capture system is：
The wireless communication module of Backpack type computer carries out radio communication with interchanger, and the shutter of camera and exposure signal are passed
Transport to control module, judge module reads the shutter and exposure signal of camera from control module, and judges that the shutter of camera is to beat
On or off is closed, and will determine that result is transferred to control module.
If the shutter of camera is open mode, control module provides a drive signal and is transferred to master by USB interface
The controller of dynamic light-emitting device, controller are supplied to infrarede emitting diode drive signal one, and control infrarede emitting diode exists
Camera shutter is lighted when opening.
If the shutter of camera is closed mode, control module provides another drive signal and is transferred to by USB interface
The controller of active light-emitting device, controller are supplied to infrarede emitting diode drive signal two, control infrarede emitting diode
Extinguish when camera shutter is closed.
Infrarede emitting diode sequential is synchronous with camera shutter, can save energy consumption and can and extend infrarede emitting diode
Working life.And infrarede emitting diode launches infrared light when lighting so that camera at a distance also can perceptible markings point,
Relative to using optics motion capture system of the passive witch ball as mark point, the active optical motion capture of the present embodiment
System has higher accuracy of identification and more preferable stability.
Embodiment two
The present embodiment provide a kind of active optical motion capture system, including be sequentially connected with camera, interchanger, master
Machine and active light-emitting device, interchanger are used to transmit the shutter of camera and exposure signal to main frame；Main frame is used to send out active
Electro-optical device is powered and control active light-emitting device is lighted and extinguished；Active light-emitting device is become as mark point by light
Change and identity information is passed into camera.
Main frame include control module and be connected respectively with control module starting module, wireless communication module, battery and
Judge module, battery be used for main frame is integrally powered, starting module be used for control main frame switch, wireless communication module with
Interchanger carries out radio communication, and the shutter of camera and exposure signal are transmitted to control module, judge module and read from control module
The shutter and exposure signal of camera are taken, and judges that the shutter of camera is opening or closing, and will determine that result is transferred to control
Module.
If the shutter of camera is open mode, control module provides a drive signal to be made actively to active light-emitting device
Light-emitting device is lighted；If the shutter of camera is closed mode, control module provides another drive signal and gives active luminous dress
Putting extinguishes active light-emitting device.
Active light-emitting device includes the controller being sequentially connected with, current-limiting resistance and infrarede emitting diode, controller and master
The control module of machine is connected.The quantity of infrarede emitting diode is five, and the luminous end of five infrarede emitting diodes is not towards
It is identical.Multiple infrarede emitting diodes are concentrated in together to form infrarede emitting diode combination, can be to multiple directions
Irradiation, mark point detection range is lifted, lift locating mark points precision.
In order to avoid an infrarede emitting diode damage causes the phenomenon of whole circuit paralysis to occur, this five luminous two
Pole pipe is to be connected in parallel.Specifically, each infrarede emitting diode is connected with controller, each infrarede emitting diode and control
A current-limiting resistance is equipped between device processed, current-limiting resistance is used for the luminous intensity for controlling single infrarede emitting diode.
It is fast in camera to each infrarede emitting diode, control infrarede emitting diode combination that controller provides drive signal
Door is lighted when opening, is extinguished when camera shutter is closed.
One of ordinary skill in the art will be appreciated that embodiment described here is to aid in reader and understands this reality
With new principle, it should be understood that the scope of protection of the utility model is not limited to such especially statement and embodiment.
One of ordinary skill in the art can these technical inspirations according to disclosed in the utility model make and various do not depart from this practicality
New substantive other various specific deformations and combination, these deformations and combination are still in the scope of protection of the utility model.
Claims (7)
- A kind of 1. active optical motion capture system, it is characterised in that：Including be sequentially connected with camera, interchanger, main frame and Active light-emitting device, interchanger are used to transmit the shutter of camera and exposure signal to main frame；Main frame is used for the luminous dress of active Put lighting and extinguishing for power supply and control active light-emitting device.
- 2. active optical motion capture system according to claim 1, it is characterised in that：The active light-emitting device bag The controller being sequentially connected with, current-limiting resistance and infrarede emitting diode are included, controller is connected with main frame.
- 3. active optical motion capture system according to claim 2, it is characterised in that：The infrarede emitting diode Quantity be more than or equal to two, the luminous end of each infrarede emitting diode is towards differing.
- 4. active optical motion capture system according to claim 3, it is characterised in that：The light emitting diode is simultaneously Connection connection.
- 5. active optical motion capture system according to claim 1, it is characterised in that：The active light-emitting device with The interface of main frame is connected, and the interface of main frame is USB interface, Mini-USB interfaces, Type-C interfaces or Lightening interfaces.
- 6. active optical motion capture system according to claim 1, it is characterised in that：The main frame includes control mould The block and wireless communication module being connected respectively with control module, battery and judge module, wireless communication module enter with interchanger Row radio communication.
- 7. active optical motion capture system according to claim 1, it is characterised in that：The main frame is Backpack type electricity Brain, Backpack type computer and interchanger radio communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721138015.XU CN207148496U (en) | 2017-09-06 | 2017-09-06 | A kind of active optical motion capture system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721138015.XU CN207148496U (en) | 2017-09-06 | 2017-09-06 | A kind of active optical motion capture system |
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| CN207148496U true CN207148496U (en) | 2018-03-27 |
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| CN201721138015.XU Active CN207148496U (en) | 2017-09-06 | 2017-09-06 | A kind of active optical motion capture system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390448A (en) * | 2017-09-06 | 2017-11-24 | 成都豪宇韬鹰科技有限公司 | A kind of active optical motion capture system |
| CN111082897A (en) * | 2019-12-26 | 2020-04-28 | 深圳市瑞立视多媒体科技有限公司 | Method and related equipment for solving synchronous communication packet loss of coding type active optical capturing system |
-
2017
- 2017-09-06 CN CN201721138015.XU patent/CN207148496U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107390448A (en) * | 2017-09-06 | 2017-11-24 | 成都豪宇韬鹰科技有限公司 | A kind of active optical motion capture system |
| CN111082897A (en) * | 2019-12-26 | 2020-04-28 | 深圳市瑞立视多媒体科技有限公司 | Method and related equipment for solving synchronous communication packet loss of coding type active optical capturing system |
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Effective date of registration: 20181030 Address after: 610000 Sichuan Chengdu high tech Zone two yuan Road 10 2 2 Units 1 Units 6 layers 1, 7 layer 1-2. Patentee after: CHENGDU GUOYI ELECTRONIC TECHNOLOGY CO., LTD. Address before: 610000 Sichuan Chengdu high tech Zone two Garden Road 10 10 2 Building 6 level 2 Patentee before: Chengdu Hao Yu Tao Eagle Technology Co. Ltd. |