CN105158496A - Object movement speed measurement method and device - Google Patents
Object movement speed measurement method and device Download PDFInfo
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- CN105158496A CN105158496A CN201510546752.2A CN201510546752A CN105158496A CN 105158496 A CN105158496 A CN 105158496A CN 201510546752 A CN201510546752 A CN 201510546752A CN 105158496 A CN105158496 A CN 105158496A
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Abstract
The embodiment of the invention discloses an object movement speed measurement method and device. The method comprises the steps that a target object selected by a user in an image displayed in the viewing frame of an intelligent terminal is acquired, and the image is obtained by acquisition of a camera; image distance of the images of the target object formed by the camera under at least two moments respectively is acquired; and movement speed of the target object is determined according to the acquired image distance, the corresponding focal length of the camera and at least two moments. According to the technical scheme, measurement cost can be reduced and measurement efficiency can be enhanced.
Description
Technical field
The embodiment of the present invention relates to field of computer technology, particularly relates to a kind of method and the device of measuring object translational speed.
Background technology
At present, under many application scenarioss, there is the measurement demand to object translational speed.But, in prior art, usually need the particular device being specifically designed to translational speed measurement, calculate the translational speed of object based on laser, electromagnetic wave or some other wave reflection principle.
There is following defect in prior art: needs in measuring equipment, arrange wave source processing apparatus, carry out the transmitting of ripple and receive its echo to mobile object, thus it is higher to make to measure cost, and efficiency is poor.
Summary of the invention
The embodiment of the present invention provides a kind of method and the device of measuring object translational speed, to reduce measurement cost, provides measurement efficiency.
On the one hand, embodiments provide a kind of method measuring object translational speed, the method comprises:
Obtain the object that user selects in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection;
Obtain described object at least two time, inscribe image distance by described camera imaging respectively;
The focal length corresponding according to the image distance got, described camera and described at least two moment, determine the translational speed of described object.
On the other hand, the embodiment of the present invention additionally provides a kind of device measuring object translational speed, and this device comprises:
Object acquiring unit, for obtaining the object that user selects in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection;
Image distance acquiring unit, inscribes image distance by described camera imaging at least two time respectively for obtaining described object;
Translational speed determining unit, for according to focal length corresponding to the image distance, the described camera that get and described at least two moment, determines the translational speed of described object.
The technical scheme that the embodiment of the present invention provides, can based on intelligent terminal and the optical theory being provided with camera, the very convenient translational speed measuring object rapidly, pass through to object emission light wave, electromagnetic wave or some other ripple with prior art, compare with the scheme calculating this object translational speed according to echo, the embodiment of the present invention can reduce measurement cost, provides measurement efficiency.
Accompanying drawing explanation
Fig. 1 is a kind of schematic flow sheet measuring the method for object translational speed that the embodiment of the present invention one provides;
Fig. 2 A is a kind of schematic flow sheet measuring the method for object translational speed that the embodiment of the present invention two provides;
Fig. 2 B is the part-structure schematic diagram of a kind of camera that the embodiment of the present invention two provides;
Fig. 2 C is the view of coil before and after energising in the voice coil motor of a kind of camera that the embodiment of the present invention two provides;
Fig. 2 D is the distance display schematic diagram before and after a kind of voice coil motor inner spring generation deformation of providing of the embodiment of the present invention two between eyeglass and sensitive chip;
Fig. 2 E be a kind of object of providing of the embodiment of the present invention two two not in the same time under by the schematic diagram of camera imaging;
Fig. 3 is a kind of structural representation measuring the device of object speed that the embodiment of the present invention three provides.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
Before in further detail exemplary embodiment being discussed, it should be mentioned that some exemplary embodiments are described as the process or method described as process flow diagram.Although operations (or step) is described as the process of order by process flow diagram, many operations wherein can be implemented concurrently, concomitantly or simultaneously.In addition, the order of operations can be rearranged.Described process can be terminated when its operations are completed, but can also have the additional step do not comprised in the accompanying drawings.Described process can correspond to method, function, code, subroutine, subroutine etc.
Embodiment one
Fig. 1 is a kind of schematic flow sheet measuring the method for object translational speed that the embodiment of the present invention one provides.The method can be performed by the device measuring object translational speed, and described device is by software and/or hardware implementing, and accessible site is on the intelligent terminal of such as smart mobile phone, panel computer or personal digital assistant and so on.See Fig. 1, the executable operations included by method of the measurement object translational speed that the present embodiment provides is specific as follows.
The object that S110, acquisition user select in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection.
Exemplary, obtain the object that user selects in the image shown by the view-finder of intelligent terminal, comprising: detection user acts on the touch gestures on the image shown by view-finder of intelligent terminal; The object that user selects in the picture is determined according to this touch gestures.
User can select the object in image by any-modes such as click, frame choosing, buttons, the depth of field that the image that take is normally different, comprises different objects, then object can be a certain discrete objects being in the close depth of field.When the touch gestures collected is default touch gestures, determine that this touch gestures acts on the object in view-finder, wherein, the touch gestures preset can for double-clicking or click gesture.
S120, acquisition object inscribe the image distance by camera imaging respectively at least two time.
The focal length that the image distance that S130, basis get, camera are corresponding and described at least two moment, determine the translational speed of object.
In the present embodiment, the subject in camera shooting visual range is by the image lenses in camera.According to lens imaging principle, the image distance d of subject imaging and the object distance u of subject meets following relation between the two:
Wherein, f is the focal length that camera is corresponding; Image distance d is the distance between picture and eyeglass; Object distance u is the distance between subject and eyeglass.
Suppose, the position being provided with the intelligent terminal of camera remains unchanged, object moves relative to intelligent terminal, if using the object distance of user-selected object when a moment t1 as the first object distance, object distance when another moment t2 is as the second object distance, so first can calculate the range difference between the first object distance and the second object distance respectively, the mistiming between moment t2 and moment t1, and then can using calculated range difference and the business of the mistiming translational speed as object.Wherein, the first object distance can according to object when moment t1 on camera the image distance of imaging and focal length corresponding to camera calculate; Second object distance can according to object when moment t2 on camera the image distance of imaging and focal length corresponding to camera calculate.
Certainly, those of ordinary skill in the art should be understood that the translational speed can also determining object by other means.Such as, object can also be obtained continuously and (be set to t n moment
1, t
2t
n, n be greater than 2 natural number) under on camera the image distance of imaging, if be respectively: d
1, d
2d
n; Then for the image distance of inscribing object time wherein each, the object distance of object is inscribed when the focal length corresponding according to camera calculates each: u
1, u
2u
n; And then, can according to the translational speed of following formula determination object:
Wherein, i is natural number.
The technical scheme that the present embodiment provides, can based on intelligent terminal and the optical theory being provided with camera, the very convenient translational speed measuring object rapidly, pass through to object emission light wave, electromagnetic wave or some other ripple with prior art, compare with the scheme calculating this object translational speed according to echo, the embodiment of the present invention can reduce measurement cost, provides measurement efficiency.
Embodiment two
Fig. 2 A is a kind of schematic flow sheet measuring the method for object translational speed that the embodiment of the present invention two provides.The present embodiment, on the basis of above-described embodiment one, is optimized the operation of " obtain object and inscribe image distance by camera imaging respectively at least two time ".See Fig. 2 A, the executable operations included by method of the measurement object translational speed that the present embodiment provides is specific as follows.
The object that S210, acquisition user select in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection.
S220, control camera focusings to object at least two moment respectively.
When S230, each focusing are to object, obtain the distance between eyeglass and sensitive chip in camera, as object in the image distance of current time by camera imaging.
The focal length that the image distance that S240, basis get, camera are corresponding and described at least two moment, determine the translational speed of object.
As shown in Figure 2 B, micro-control unit 201 (MCU, MicrocontrollerUnit), driving chip 202 (DriverIC) and voice coil motor 203 (VCM, VoiceCoilMoto) is provided with in camera.Driving chip 202 is connected with micro-control unit 201 and voice coil motor 203 respectively.
Be built-in with the coil together with being mounted in eyeglass in voice coil motor 201, this coil is in the magnetic field with setting magnetic field intensity, and is on a horizontal line with sensitive chip.One of voice coil motor 203 and spring is connected, is fixed on the setting position of camera by spring.Micro-control unit 201 by controlling driving chip 202, to the coil electricity in voice coil motor 203, can compress or extension spring to make coil be subject to thrust under the acting in conjunction in electric current and magnetic field, thus changing the distance between eyeglass and sensitive chip.Micro-control unit 201, by changing the electrical current of coil, regulates the distance between eyeglass and sensitive chip to carry out focusing process, makes object imaging present state the most clearly.
As shown in Figure 2 C, the coil in voice coil motor 203 is under the state be not energized, and coil is stressed is zero, and spring deformation can not occur, and now the length of spring is original length; When camera focusing is to object, coil in voice coil motor 203 is in "on" position, this coil is subject to thrust F under the effect in electric current and magnetic field, be subject to the elastic force of spring because of spring generation deformation (deformation length is Δ x), elastic force is with thrust equal and opposite in direction and direction is contrary simultaneously.
Wherein, thrust size | F|=K × B × I.K is default constant; B is the magnetic field intensity at the coil place in voice coil motor, and I is the electrical current of current time lower coil.And the large I of the elastic force be subject to calculates according to following formula: α × Δ x.Wherein α is the elasticity coefficient of spring.So, the deformation length of spring
As a kind of embodiment of the present embodiment, control camera focusing to object at least two moment respectively, comprising: control camera at least two moment respectively and move eyeglass, with object of focusing by driving voice coil motor;
When each focusing is to object, obtain the distance between eyeglass and sensitive chip in camera, comprise: when each focusing is to object, distance when there is not deformation according to voice coil motor inner spring between eyeglass and sensitive chip and the deformation length of current time lower spring, calculate the distance between eyeglass and sensitive chip in camera.
As shown in Figure 2 D, when deformation does not occur voice coil motor inner spring, the distance between eyeglass 204 and sensitive chip 205 is x
min; During voice coil motor inner spring generation largest deformation, the distance between eyeglass 204 and sensitive chip 205 is x
max; When focusing is to object, the deformation length of current time lower spring is Δ x.Distance d=x in camera between eyeglass 204 and sensitive chip 205
min+ Δ x.
On the basis of technique scheme, exemplary, described at least two moment are preferably two moment: the first moment and the second moment.As shown in Figure 2 E, object 206 is inscribed by the image distance of camera imaging first time is d
1(inscribing the distance of sensitive chip 205 and eyeglass 204 when being also first), the object distance of object 206 is u
1(when being also first, inscribing the distance of object 206 and eyeglass 204); It is d that object 206 is inscribed by the image distance of camera imaging second time
2(inscribing the distance of sensitive chip 205 and eyeglass 204 when being also second), the object distance of object 206 is u
2(when being also second, inscribing the distance of object 206 and eyeglass 204).
Accordingly, the focal length corresponding according to the image distance got, camera and described at least two moment, determine the translational speed of object, can specifically comprise:
Translational speed according to following formulae discovery object:
Wherein, Δ t for described in the first moment at least two moment and the difference between the second moment; F is the focal length that camera is corresponding.
Embodiment three
Fig. 3 is a kind of structural representation measuring the device of object speed that the embodiment of the present invention three provides.See Fig. 3, the concrete structure of this device is as follows:
Object acquiring unit 310, for obtaining the object that user selects in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection;
Image distance acquiring unit 320, inscribes image distance by described camera imaging at least two time respectively for obtaining described object;
Translational speed determining unit 330, for according to focal length corresponding to the image distance, the described camera that get and described at least two moment, determines the translational speed of described object.
Exemplary, described image distance acquiring unit 320 comprises:
Focusing subelement 3201, for controlling described camera focusing to described object at least two moment respectively;
Obtain subelement 3202, for when focusing is to described object at every turn, obtain the distance between eyeglass and sensitive chip in described camera, as described object in the image distance of current time by described camera imaging.
Exemplary, described focusing subelement 3201, moves eyeglass, with described object of focusing specifically for controlling described camera at least two moment respectively by driving voice coil motor;
Described acquisition subelement 3202, specifically for when focusing is to described object at every turn, under distance when there is not deformation according to described voice coil motor inner spring between described eyeglass and described sensitive chip and current time, the deformation length of described spring, calculates the distance between eyeglass and sensitive chip in described camera.
Preferably, described acquisition subelement 3202 is specifically for according to the distance d in camera described in following formulae discovery between eyeglass and sensitive chip:
d＝x
min+Δx
Wherein, described x
minfor distance when deformation do not occur voice coil motor inner spring between eyeglass and sensitive chip; The deformation length of current time lower spring
described B is the magnetic field intensity at the coil place in described voice coil motor, and I is the electrical current of described coil under current time, and described K is default constant; α is the elasticity coefficient of described spring.
Exemplary, described translational speed determining unit 330, the translational speed specifically for according to object described in following formulae discovery:
Wherein, described Δ t for described in the first moment at least two moment and the difference between the second moment; d
2for described object inscribes the image distance by described camera imaging described second time; d
1for described object inscribes the image distance by described camera imaging described first time; F is the focal length that described camera is corresponding.
On the basis of the technique scheme provided at the present embodiment, described object acquiring unit 310, specifically for: detect the touch gestures on the image shown by view-finder that user acts on intelligent terminal; The object that user selects in described image is determined according to described touch gestures.
The said goods can perform the method that any embodiment of the present invention provides, and possesses the corresponding functional module of manner of execution and beneficial effect.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. measure a method for object translational speed, it is characterized in that, comprising:
Obtain the object that user selects in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection;
Obtain described object at least two time, inscribe image distance by described camera imaging respectively;
The focal length corresponding according to the image distance got, described camera and described at least two moment, determine the translational speed of described object.
2. method according to claim 1, is characterized in that, obtains described object at least two time, inscribes image distance by described camera imaging respectively, comprising:
Described camera focusing is controlled to described object respectively at least two moment;
When each focusing is to described object, obtain the distance between eyeglass and sensitive chip in described camera, as described object in the image distance of current time by described camera imaging.
3. method according to claim 2, it is characterized in that, control described camera focusing to described object at least two moment respectively, comprising: control described camera at least two moment respectively and move eyeglass, with described object of focusing by driving voice coil motor;
When each focusing is to described object, obtain the distance between eyeglass and sensitive chip in described camera, comprise: when each focusing is to described object, under distance when there is not deformation according to described voice coil motor inner spring between described eyeglass and described sensitive chip and current time, the deformation length of described spring, calculates the distance between eyeglass and sensitive chip in described camera.
4. method according to claim 1, is characterized in that, the focal length corresponding according to the image distance got, described at least two moment and described camera, determines the translational speed of described object, comprising:
Translational speed according to object described in following formulae discovery:
Wherein, described Δ t for described in the first moment at least two moment and the difference between the second moment; d
2for described object inscribes the image distance by described camera imaging described second time; d
1for described object inscribes the image distance by described camera imaging described first time; F is the focal length that described camera is corresponding.
5. the method according to any one of claim 1-4, is characterized in that, obtains the object that user selects in the image shown by the view-finder of intelligent terminal, comprising:
Detection user acts on the touch gestures on the image shown by view-finder of intelligent terminal;
The object that user selects in described image is determined according to described touch gestures.
6. measure a device for object translational speed, it is characterized in that, comprising:
Object acquiring unit, for obtaining the object that user selects in the image shown by the view-finder of intelligent terminal, wherein said image is obtained by camera collection;
Image distance acquiring unit, inscribes image distance by described camera imaging at least two time respectively for obtaining described object;
Translational speed determining unit, for according to focal length corresponding to the image distance, the described camera that get and described at least two moment, determines the translational speed of described object.
7. device according to claim 6, is characterized in that, described image distance acquiring unit comprises:
Focusing subelement, for controlling described camera focusing to described object at least two moment respectively;
Obtain subelement, for when focusing is to described object at every turn, obtain the distance between eyeglass and sensitive chip in described camera, as described object in the image distance of current time by described camera imaging.
8. device according to claim 7, is characterized in that, described focusing subelement, moves eyeglass, with described object of focusing specifically for controlling described camera at least two moment respectively by driving voice coil motor;
Described acquisition subelement, specifically for when focusing is to described object at every turn, under distance when there is not deformation according to described voice coil motor inner spring between described eyeglass and described sensitive chip and current time, the deformation length of described spring, calculates the distance between eyeglass and sensitive chip in described camera.
9. device according to claim 6, is characterized in that, described translational speed determining unit, the translational speed specifically for according to object described in following formulae discovery:
Wherein, described Δ t for described in the first moment at least two moment and the difference between the second moment; d
2for described object inscribes the image distance by described camera imaging described second time; d
1for described object inscribes the image distance by described camera imaging described first time; F is the focal length that described camera is corresponding.
10. the device according to any one of claim 6-9, is characterized in that, described object acquiring unit, specifically for: detect the touch gestures on the image shown by view-finder that user acts on intelligent terminal; The object that user selects in described image is determined according to described touch gestures.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871790A (en) * | 2016-12-30 | 2017-06-20 | 深圳天珑无线科技有限公司 | The method and system of intelligent mobile measurement device object |
| CN107071254A (en) * | 2017-05-31 | 2017-08-18 | 广东欧珀移动通信有限公司 | CCD camera assembly and electronic equipment |
| CN109856422A (en) * | 2019-02-19 | 2019-06-07 | 成都京东方光电科技有限公司 | Acceleration transducer, acceleration measurement device and method |
| WO2024093665A1 (en) * | 2022-11-02 | 2024-05-10 | 腾讯科技（深圳）有限公司 | Identity recognition image processing method and apparatus, computer device, and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105821A (en) * | 1986-07-18 | 1988-02-03 | 空军第一航空技术专科学校 | The measurement mechanism of forming by optical lens and photoelectric cell |
| US7330569B2 (en) * | 2004-10-08 | 2008-02-12 | Huei-Yung Lin | Measurement method using blurred images |
| CN103969466A (en) * | 2014-05-09 | 2014-08-06 | 中国联合网络通信集团有限公司 | Method for measuring speed of vehicle and corresponding terminal |
-
2015
- 2015-08-31 CN CN201510546752.2A patent/CN105158496B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86105821A (en) * | 1986-07-18 | 1988-02-03 | 空军第一航空技术专科学校 | The measurement mechanism of forming by optical lens and photoelectric cell |
| US7330569B2 (en) * | 2004-10-08 | 2008-02-12 | Huei-Yung Lin | Measurement method using blurred images |
| CN103969466A (en) * | 2014-05-09 | 2014-08-06 | 中国联合网络通信集团有限公司 | Method for measuring speed of vehicle and corresponding terminal |
Non-Patent Citations (2)
| Title |
|---|
| Y.L.MURPHEY ET.AL.: "A Real-Time Depth Detection System for Aided Driving", 《PROCEEDINGS OF THE IEEE INTELLIGENT VEHICLES SYMPOSIUM 2000》 * |
| 许定根等: "单目序列图像的运动目标参数估算新方法", 《计算机工程与应用》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871790A (en) * | 2016-12-30 | 2017-06-20 | 深圳天珑无线科技有限公司 | The method and system of intelligent mobile measurement device object |
| CN107071254A (en) * | 2017-05-31 | 2017-08-18 | 广东欧珀移动通信有限公司 | CCD camera assembly and electronic equipment |
| CN109856422A (en) * | 2019-02-19 | 2019-06-07 | 成都京东方光电科技有限公司 | Acceleration transducer, acceleration measurement device and method |
| CN109856422B (en) * | 2019-02-19 | 2022-03-22 | 成都京东方光电科技有限公司 | Acceleration sensor, acceleration measuring device and method |
| US11506680B2 (en) | 2019-02-19 | 2022-11-22 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Speed sensor, device for measuring speed and method thereof |
| WO2024093665A1 (en) * | 2022-11-02 | 2024-05-10 | 腾讯科技（深圳）有限公司 | Identity recognition image processing method and apparatus, computer device, and storage medium |
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