CN103486997B - Lens coverage determines method and system - Google Patents
Lens coverage determines method and system Download PDFInfo
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- CN103486997B CN103486997B CN201210194099.4A CN201210194099A CN103486997B CN 103486997 B CN103486997 B CN 103486997B CN 201210194099 A CN201210194099 A CN 201210194099A CN 103486997 B CN103486997 B CN 103486997B
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Abstract
A kind of lens coverage determines method, including：The positional information for multiple anchor points that receiving positioner is sent；Video signal camera lens is controlled to shoot each anchor point successively by the position adjustment module in video signal camera lens, and the video signal camera lens upper lower angle vertically moved the and level angle moved horizontally when shooting each anchor point is obtained, and obtain distance detecting chip in video signal camera lens simultaneously and detect orientation distance between obtained each anchor point and video signal camera lens；Upper lower angle, level angle, orientation distance and measurement against human body value corresponding to speaker according to corresponding to each anchor point, calculate video signal camera lens and navigate to the angle that each speaker need to horizontally rotate；Taking-up level turns left in the angle that each speaker need to horizontally rotate maximum angle and the horizontal maximum angle to turn right are navigated to from the video signal camera lens to determine the coverage of video signal camera lens.The present invention also provides a kind of lens coverage and determines system.Using present invention may determine that the coverage of high-order video camera lens.
Description
Technical field
The present invention relates to a kind of lens coverage to determine method and system, more particularly to a kind of bat of high-order video camera lens
Take the photograph range determining method and system.
Background technology
Existing high-order video camera lens can realize the adjustment of lower angle and left and right horizontal angle, but be both needed in adjustment through
It is controlled by remote control.The velocity of rotation of the high-order video camera lens is fast（Up to 300 degree per seconds）And positioning function is not provided,
Therefore when that need to be shot using the high-order video camera lens, can not provide immediately real interactive.
The content of the invention
In view of the foregoing, it is necessary to a kind of lens coverage is provided and determines method, to determine high-order video camera lens
Coverage.
In view of the foregoing, a kind of lens coverage of offer is provided and determines system, to determine high-order video camera lens
Coverage.
The lens coverage determines method, comprises the following steps：First receiving step：After the startup of video signal camera lens,
The positional information for multiple anchor points that receiving positioner is sent；First rate-determining steps：Pass through the position adjustment in video signal camera lens
Module control video signal camera lens shoots each anchor point successively, and obtains the upper inferior horn that video signal camera lens vertically moves when shooting each anchor point
The level angle spent and moved horizontally, and each anchor point that the detecting chip of distance in video signal camera lens is detected to obtain is obtained simultaneously with regarding
Interrogate the orientation distance between camera lens；Calculation procedure：According to corresponding to each anchor point upper lower angle, level angle, orientation distance and
Measurement against human body value corresponding to speaker, calculate video signal camera lens and navigate to the angle that each speaker need to horizontally rotate, the human body
Vertical range between the desktop that measured value refers to each speaker that video signal camera lens to be shot and the plurality of anchor point is formed；It is determined that
Step：The maximum angular that taking-up level turns left in the angle that each speaker need to horizontally rotate is navigated to from the video signal camera lens
Degree and the horizontal maximum angle to turn right determine the coverage of video signal camera lens.
The lens coverage determines system, including：Receiving module, for after the startup of video signal camera lens, receiving positioning
The positional information for multiple anchor points that device is sent；Control module, for being controlled by the position adjustment module in video signal camera lens
Video signal camera lens shoots each anchor point successively, and obtains the upper lower angle and level that video signal camera lens vertically moves when shooting each anchor point
Mobile level angle, and obtain simultaneously the detecting chip of distance in video signal camera lens detect obtained each anchor point and video signal camera lens it
Between orientation distance；Computing module, for upper lower angle, level angle, orientation distance and speaker according to corresponding to each anchor point
Measurement against human body value corresponding to people, calculate video signal camera lens and navigate to the angle that each speaker need to horizontally rotate, the measurement against human body
Vertical range between the desktop that value refers to each speaker that video signal camera lens to be shot and the plurality of anchor point is formed；Determine mould
Block, for navigating to the maximum that taking-up level turns left in the angle that each speaker need to horizontally rotate from the video signal camera lens
Angle and the horizontal maximum angle to turn right determine the coverage of video signal camera lens.
Compared to prior art, described lens coverage determines method and system, can pass through positioner（It is such as distant
Control device）Four anchor points are determined, and the coverage of high-order video camera lens is determined after being calculated using four anchor points,
And the positioning of camera site can be realized.
Brief description of the drawings
Fig. 1 is the Organization Chart that lens coverage of the present invention determines system preferred embodiment.
Fig. 2 is the functional block diagram that lens coverage of the present invention determines system preferred embodiment.
Fig. 3 is the flow chart that lens coverage of the present invention determines method preferred embodiment.
Fig. 4 is the shooting exemplary plot of the present invention.
Main element symbol description
| High-order video camera lens | 1 |
| Lens coverage determines system | 10 |
| Processor | 11 |
| Memory | 12 |
| Distance detecting chip | 13 |
| Voice control chip | 14 |
| Position adjustment module | 15 |
| Cable | 2 |
| Directional microphone | 3 |
| Positioner | 4 |
| Receiving module | 100 |
| Control module | 101 |
| Computing module | 102 |
| Determining module | 103 |
| Setup module | 104 |
Following embodiment will combine above-mentioned accompanying drawing and further illustrate the present invention.
Embodiment
As shown in figure 1, it is the Organization Chart that lens coverage of the present invention determines system preferred embodiment.
Lens coverage determines that system 10 is run in high-order video camera lens 1, and the high-order video camera lens 1 is can left-right rotary
The high standard video signal camera lens turn, adjusted up and down.The high-order video camera lens 1 is connected to one or more directive property by cable 2
Microphone 3（One is only drawn in figure）.When directional microphone 3 by speaker in use, the high-order video camera lens 1 adjust to
The speaker position shoots the speaker.The high-order video camera lens 1 can also shoot the anchor point of the transmission of positioner 4,
The positioner 4 can be the devices such as remote control, radium-shine transmitter or RF transmitter.The high-order video camera lens 1 has one
Individual initial position, after all objects have been shot, the high-order video camera lens 1 can return to the initial position, and the object includes master
Say people and anchor point.
Also include the processor 11, memory 12, distance detecting being connected by data/address bus in the high-order video camera lens 1
Chip 13, voice control chip 14 and position adjustment module 15.The memory 12 is used to store the lens coverage determination system
The data such as the program code of system 10.The anchor point that the distance detecting chip 13 is used to detect the transmission of positioner 4 regards with high-order
Interrogate the distance between camera lens 1.The voice control chip 14 is used to receive voice signal caused by directional microphone 3.The position
Adjusting module 15 includes lens assembly, adjusting apparatus etc., determines for high-order video camera lens 1 to be adjusted to what positioner 4 was sent
Orientation caused by site or directional microphone 3 where voice signal.
In the present embodiment, the lens coverage determines that system 10 can be divided into one or more modules, institute
One or more modules are stated to be stored in the memory 12 and be configured to by one or more processors（The present embodiment is
One processor 11）Perform, to complete the present invention.For example, as shown in fig.2, the lens coverage determines the quilt of system 10
It is divided into receiving module 100, control module 101, computing module 102, determining module 103 and setup module 104.Alleged by the present invention
Module be to complete the program segment of a specific function, than program more suitable for execution of the description software in high-order video camera lens 1
Process.The function of each module describes the flow chart for combining Fig. 3 in detail.
As shown in figure 3, it is the flow chart that lens coverage of the present invention determines method preferred embodiment.
Step S10, after the high-order video camera lens 1 startup, what the receiving positioner 4 of receiving module 100 was sent
The information of multiple anchor points.The information of the anchor point includes：Position of each anchor point in a rectangular coordinate system in space
Coordinate value.As shown in figure 4, there is a conference table ABCD, it is spaced a distance in conference table ABCD CD sides and is placed with one
Individual high-order video camera lens 1, user respectively position an anchor point, receiving module using positioner 4 on four angles of conference table
100 receive the position coordinate value of four anchor points, and the conference table may be considered the desktop that four anchor points are formed.
The rectangular coordinate system in space is defined as follows：Point residing for high-order video camera lens 1 is set to F, by high-order video mirror
The intersection point between the plane where vertical line and conference table ABCD where first 1 is set to E, and the rectangular coordinate system in space is used as using E
Origin, Z axis of the straight line where EF as the rectangular coordinate system in space, straight line EI is in ABCD planes, straight line EI
Perpendicular to straight line CD, using straight line EI as the X-axis of the rectangular coordinate system in space, then one is done in ABCD planes from E points and is put down
The capable Y-axis in straight line CD straight line as the rectangular coordinate system in space.
In Fig. 4, the initial bit of high-order video camera lens 1 is placed parallel to ABCD planes and and CDD1C1The vertical position of plane
Put, the CDD1C1Plane of the plane perpendicular to conference table ABCD.The position that line segment FG as shown in Figure 4 is identified is parallel
Plane and and CDD where conference table ABCD1C1The vertical position of plane, line segment FG are the initial bit of high-order video camera lens 1
Put.
Step S12, the control module 101 control high-order video camera lens 1 to shoot successively respectively by position adjustment module 15
Anchor point, and obtain the upper lower angle vertically moved of high-order video camera lens 1 and the horizontal angle moved horizontally when shooting each anchor point
Degree, and the orientation distance between each anchor point and high-order video camera lens 1 that the distance detecting detecting of chip 13 obtains is obtained simultaneously.Should
Upper lower angle refers to the angle that high-order video camera lens 1 moves vertically upward or vertically downward relative to initial position, the level angle
Refer to high-order video camera lens 1 relative to initial position level to the left or the horizontal angle to move right.
As shown in figure 4, in the anchor point C on shooting conference table ABCD, position adjustment module 15 adjusts high-order video mirror
First 1 by initial position（Line segment FG positions）It is moved to anchor point C.Now the horizontal direction of high-order video camera lens 1 is by line segment FG positions
It is moved to line segment FH positions（Level angle is angle, θ corresponding to ∠ GFH1）, above-below direction by line segment FH positions vertically downward
It is moved to line segment FC positions（Upper lower angle is angle, θ corresponding to ∠ HFC）.It follows that the height that position adjustment module 15 adjusts
The upper lower angle of rank video signal camera lens 1 is θ, level angle θ1, obtained anchor point C is detected apart from detecting chip 13 and is regarded with high-order
The distance between the point F and anchor point C of the orientation distance between camera lens 1 residing for high-order video camera lens 1 is interrogated, is such as L.
Step S14, the computing module 102 according to corresponding to each anchor point upper lower angle, level angle, orientation distance and
Measurement against human body value corresponding to speaker, high-order video camera lens 1 is calculated using trigonometric function navigating to each speaker needs water
The dynamic angle of flat turn.The measurement against human body value refers to that each speaker to be shot of high-order video camera lens 1 is formed with multiple anchor points
Conference table between vertical range.The angle horizontally rotated includes the horizontal angle to turn left or level and turned right
Dynamic angle, the angle that the level turns left refer to turned left relative to the initial position level of high-order video camera lens 1 and
Obtained angle, the angle that the level turns right refers to turn right relative to the initial position level of high-order video camera lens 1
Obtained from angle.
It should be noted that the setup module 104 set measurement against human body value corresponding to each speaker and with each master
Say the anchor point that people closes on.As shown in figure 4, lay seat M and seat N, seat M and seat in conference table ABCD BC sides
Speaker M1 and speaker N1 is seated on N respectively, it is assumed that each seat and conference table ABCD distance 60cm, then setup module
104 to set measurement against human body value corresponding to two speakers be 60cm, while setup module 104 can be set speaker M1 and close on
Anchor point be B and anchor point that speaker N1 closes on is C.During the speaker not closed on if anchor point, setup module
104 pairs of anchor points set a virtual speaker, and measurement against human body value corresponding to the virtual speaker is 0.Such as Fig. 4 institutes
Show there is no speaker in conference table ABCD AD sides, then the speaker that anchor point A, D does not close on, setup module 104 is fixed
Site A, D set the virtual speaker that a human body measured value is 0 respectively.
The calculating high-order video of computing module 102 camera lens 1 is introduced by taking anchor point C as an example and navigates to the master for closing on anchor point C
Say the process for the angle that people N1 need to horizontally rotate.As shown in figure 4, intersection point E, I, C form a right angled triangle ECI.At right angle
In triangle ECI, EI is the line segment of plane where line segment FG maps to conference table ABCD, and EC is that line segment FH maps to conference table
The line segment of plane where ABCD, then ∠ IEC are the angle that level angle ∠ GFH Planar Mappings where conference table ABCD obtain,
Also it is θ1.The EC is equal with upper lower angle ∠ HFC with FC acute angle ∠ ECF, is θ.Line segment DC prolongs along DC direction
For the length of a long human body measured value to point K, then the angle horizontally rotated corresponding to anchor point C is ∠ IEK.Assuming that ∠ IEK couple
The angle answered is θ2, then θ2Tangent value tan θ2=（IC+ measurement against human body values）÷ IE, wherein, measurement against human body value is, it is known that IC=EC
×sinθ1, IE=EC × cos θ1.The sin θ1For θ1Sine value, cos θ1For θ1Cosine value, θ1For known horizontal angle
Spend, then sin θ1With cos θ1, it is known that and EC=FC × cos θ, the cos θ are θ cosine value, FC and θ is equal, it is known that then can thus ask
The angle ∠ IEK that need to be horizontally rotated when high-order video camera lens 1 navigates to the speaker N1 for closing on anchor point C are obtained, the ∠ IEK are water
The flat angle to turn left.
Step S16, what the determining module 103 need to horizontally rotate when navigating to each speaker from high-order video camera lens 1
Taking-up level turns left in angle maximum angle and the horizontal maximum angle to turn right determine high-order video camera lens 1
Coverage.The maximum angle and the horizontal maximum angle to turn right that the level turns left form high-order video camera lens 1
Coverage.
In the present invention, the final purpose of the high-order video camera lens 1 is to shoot the speaker using directional microphone 3
People, but can be multiple speakers because speaker is not unique, so as to cause camera site to be variable, thus it is first right
Fixed several anchor points are positioned.Afterwards, the position of speaker is estimated according to the measurement against human body value of speaker, come
The coverage of high-order video camera lens 1 is tried to achieve, so as to prevent that high-order video camera lens 1 is in place because missing speaker institute rotating speed is too fast
Put and influence the degree of accuracy of positioning.
It is determined that after the coverage of high-order video camera lens 1, when directional microphone 3 detects speaker in speech,
The receiving module 100 receives the voice signal of directional microphone 3 so that it is determined that the position of speaker by voice control chip 14,
Then the control module 101 controls high-order video camera lens 1 to adjust to the speaker position by position adjustment module 15
Shot, the eyes of the now position adjustment module 15 positioning speaker.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, technical scheme can be modified
Or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention.
Claims (10)
1. a kind of lens coverage determines method, it is characterised in that this method comprises the following steps：
First receiving step：After the startup of video signal camera lens, multiple anchor points that receiving positioner is sent are in a space right-angle
Position coordinate value in coordinate system, wherein, defining the method for the rectangular coordinate system in space includes：By residing for the video signal camera lens
Point be set to " F ", the intersection point between the vertical line where the video signal camera lens and the plane where the plurality of anchor point is set to
" E ", using " E " as the origin of the rectangular coordinate system in space, Z axis of the straight line as the rectangular coordinate system in space where " EF ", from
" E " point makees straight line " EI " in the plane where the plurality of anchor point, and the straight line " EI " is perpendicular to the multiple anchor point
In the straight line " CD " that is formed of two of which anchor point, the two of which anchor point apart from the video signal camera lens distance than it
His anchor point is smaller apart from the distance of the video signal camera lens, using the straight line " EI " as the X-axis of the rectangular coordinate system in space, then from
" E " point is made a straight line parallel to the straight line " CD " in the plane where the plurality of anchor point and sat as the space right-angle
Mark the Y-axis of system；
First rate-determining steps：The video signal camera lens is controlled to shoot successively by the position adjustment module in the video signal camera lens each fixed
Site, and the video signal camera lens upper lower angle vertically moved and the level angle moved horizontally when shooting each anchor point are obtained,
And distance detecting chip in the video signal camera lens is obtained simultaneously and detects to determine between obtained each anchor point and the video signal camera lens
Position distance；
Calculation procedure：Upper lower angle, level angle, orientation distance and human body meter corresponding to speaker according to corresponding to each anchor point
Measured value, calculate the video signal camera lens and navigate to the angle that each speaker need to horizontally rotate, the measurement against human body value refers to described regard
Vertical range between the desktop that each speaker and the plurality of anchor point that news camera lens to be shot are formed；
Determine step：Taking-up level in the angle that each speaker need to horizontally rotate is navigated to from the video signal camera lens to turn left
Maximum angle and the horizontal maximum angle to turn right determine the coverage of the video signal camera lens.
2. lens coverage as claimed in claim 1 determines method, it is characterised in that this method also includes：
Second receiving step：The directive property wheat being connected with the video signal camera lens is received by the voice control chip in the video signal camera lens
The voice signal of gram wind is so that it is determined that the position of speaker；
Second rate-determining steps：The video signal camera lens is controlled to adjust to the speaker of directional microphone by the position adjustment module
People position is shot.
3. lens coverage as claimed in claim 1 determines method, it is characterised in that this method is also wrapped before calculation procedure
Include：
Setting steps：Measurement against human body value corresponding to each speaker and the anchor point closed on each speaker are set.
4. lens coverage as claimed in claim 3 determines method, it is characterised in that the calculation procedure includes：
In the angle, θ for calculating the video signal camera lens and navigating to each speaker and need to horizontally rotating2When, the angle, θ horizontally rotated2
Tangent value tan θ2=(L × cos θ × sin θ1+ measurement against human body value) ÷ (L × cos θ × cos θ1), wherein, L is to close on the master
Say the orientation distance of the anchor point of people, θ is the upper lower angle for closing on the anchor point of the speaker, θ1To close on determining for the speaker
The level angle in site.
5. lens coverage as claimed in claim 4 determines method, it is characterised in that the θ is to close on the speaker's
The upper lower angle of anchor point, lower angle refers to the video signal camera lens and moved vertically upward or vertically downward relative to initial position on this
Angle, θ1To close on the level angle of the anchor point of the speaker, the level angle refers to the video signal camera lens relative to initial
Position level is to the left or the horizontal angle to move right.
6. a kind of lens coverage determines system, it is characterised in that the system includes：
Receiving module, for after the startup of video signal camera lens, multiple anchor points that receiving positioner is sent to be in a space right-angle
Position coordinate value in coordinate system, wherein, defining the method for the rectangular coordinate system in space includes：By residing for the video signal camera lens
Point be set to " F ", the intersection point between the vertical line where the video signal camera lens and the plane where the plurality of anchor point is set to
" E ", using " E " as the origin of the rectangular coordinate system in space, Z axis of the straight line as the rectangular coordinate system in space where " EF ", from
" E " point makees straight line " EI " in the plane where the plurality of anchor point, and the straight line " EI " is perpendicular to the multiple anchor point
In the straight line " CD " that is formed of two of which anchor point, the two of which anchor point apart from the video signal camera lens distance than it
His anchor point is smaller apart from the distance of the video signal camera lens, using the straight line " EI " as the X-axis of the rectangular coordinate system in space, then from
" E " point is made a straight line parallel to the straight line " CD " in the plane where the plurality of anchor point and sat as the space right-angle
Mark the Y-axis of system；
Control module, it is each fixed for controlling the video signal camera lens to shoot successively by the position adjustment module in the video signal camera lens
Site, and the video signal camera lens upper lower angle vertically moved and the level angle moved horizontally when shooting each anchor point are obtained,
And distance detecting chip in the video signal camera lens is obtained simultaneously and detects to determine between obtained each anchor point and the video signal camera lens
Position distance；
Computing module, lower angle, level angle, orientation distance and people corresponding to speaker on according to corresponding to each anchor point
Body measured value, calculate the video signal camera lens and navigate to the angle that each speaker need to horizontally rotate, the measurement against human body value refers to institute
State the vertical range between each speaker that video signal camera lens to be shot and the desktop that the plurality of anchor point is formed；
Determining module, for navigating in the angle that each speaker need to horizontally rotate taking-up level to the left from the video signal camera lens
The maximum angle of rotation and the horizontal maximum angle to turn right determine the coverage of the video signal camera lens.
7. lens coverage as claimed in claim 6 determines system, it is characterised in that the system also includes：
The receiving module, it is additionally operable to receive the finger being connected with the video signal camera lens by the voice control chip in the video signal camera lens
The voice signal of directional microphone is so that it is determined that the position of speaker；
The control module, it is additionally operable to control the video signal camera lens to adjust to directional microphone by the position adjustment module
Speaker position shot.
8. lens coverage as claimed in claim 6 determines system, it is characterised in that the system also includes：
Setup module, for setting measurement against human body value corresponding to each speaker and the anchor point closed on each speaker.
9. lens coverage as claimed in claim 8 determines system, it is characterised in that the computing module passes through following step
Suddenly calculate the video signal camera lens and navigate to the angle that each speaker need to horizontally rotate：
In the angle, θ for calculating the video signal camera lens and navigating to each speaker and need to horizontally rotating2When, the angle, θ horizontally rotated2
Tangent value tan θ2=(L × cos θ × sin θ1+ measurement against human body value) ÷ (L × cos θ × cos θ1), wherein, L is to close on the master
Say the orientation distance of the anchor point of people, θ is the upper lower angle for closing on the anchor point of the speaker, θ1To close on determining for the speaker
The level angle in site.
10. lens coverage as claimed in claim 9 determines system, it is characterised in that the θ is to close on the speaker's
The upper lower angle of anchor point, lower angle refers to the video signal camera lens and moved vertically upward or vertically downward relative to initial position on this
Angle, θ1To close on the level angle of the anchor point of the speaker, the level angle refers to the video signal camera lens relative to initial
Position level is to the left or the horizontal angle to move right.
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| CN201210194099.4A CN103486997B (en) | 2012-06-13 | 2012-06-13 | Lens coverage determines method and system |
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| CN201210194099.4A CN103486997B (en) | 2012-06-13 | 2012-06-13 | Lens coverage determines method and system |
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| CN103486997B true CN103486997B (en) | 2017-12-15 |
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| CN104954683B (en) * | 2015-06-23 | 2019-01-18 | 小米科技有限责任公司 | Determine the method and device of photographic device |
| CN106097297B (en) * | 2016-05-12 | 2019-02-19 | 惠州市德赛西威汽车电子股份有限公司 | A kind of camera blocks range computation method |
| US10356307B2 (en) * | 2017-09-13 | 2019-07-16 | Trw Automotive U.S. Llc | Vehicle camera system |
| CN111080720B (en) * | 2019-12-26 | 2023-07-04 | 重庆盟讯电子科技有限公司 | Module correction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000333150A (en) * | 1999-05-20 | 2000-11-30 | Nec Corp | Video conference system |
| JP4593172B2 (en) * | 2004-05-25 | 2010-12-08 | 公立大学法人会津大学 | Camera control device |
| CN100442837C (en) * | 2006-07-25 | 2008-12-10 | 华为技术有限公司 | Video frequency communication system with sound position information and its obtaining method |
| US8289363B2 (en) * | 2006-12-28 | 2012-10-16 | Mark Buckler | Video conferencing |
| CN101478711B (en) * | 2008-12-29 | 2013-07-31 | 无锡中星微电子有限公司 | Method for controlling microphone sound recording, digital audio signal processing method and apparatus |
| CN101511000B (en) * | 2009-02-27 | 2011-02-16 | 中山大学 | Intelligent monitoring pick-up head device using acoustic location |
| CN102158680A (en) * | 2010-02-11 | 2011-08-17 | 北京华旗随身数码股份有限公司 | Telephone conference terminal with visualization function |
| CN102742266A (en) * | 2010-02-15 | 2012-10-17 | 夏普株式会社 | Information processing device, terminal device, information processing system, method of control of information processing device, control program, and computer-readable recording medium whereupon the program is recorded |
| CN101916437B (en) * | 2010-06-18 | 2014-03-26 | 中国科学院计算技术研究所 | Method and system for positioning target based on multi-visual information |
| US20130179288A1 (en) * | 2010-11-17 | 2013-07-11 | Upcload Gmbh | Collecting and using anthropometric measurements |
| CN102244762A (en) * | 2011-06-03 | 2011-11-16 | 深圳市东微智能科技有限公司 | Camera tracking method and system used in conference system |
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