CN104567796A - 3D shooting ranging method - Google Patents
3D shooting ranging method Download PDFInfo
- Publication number
- CN104567796A CN104567796A CN201310533291.6A CN201310533291A CN104567796A CN 104567796 A CN104567796 A CN 104567796A CN 201310533291 A CN201310533291 A CN 201310533291A CN 104567796 A CN104567796 A CN 104567796A
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- China
- Prior art keywords
- pick
- lens
- laser module
- distance
- tan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
Abstract
A 3D shooting ranging method relates to the technical field of optical ranging equipment and optical ranging methods. A 3D shooting system comprises 3D pick-up lenses and a laser module (3), wherein the 3D pick-up lenses comprise a first 3D pick-up lens (1) and a second 3D pick-up lens (2); and the laser module (3) is positioned between the first 3D pick-up lens (1) and the second 3D pick-up lens (2), and the centers of the three are on the same straight line. According to the 3D shooting ranging method, on the basis of the 3D shooting system, the proper laser module is configured to achieve the effective ranging method. The 3D shooting ranging method can be applied to portable terminal products, such as mobile phones, and has the characteristics of being easy to operate, high in ranging accuracy and the like.
Description
Technical field:
The present invention relates to optical distance measuring equipment and method and technology field thereof, be specifically related to a kind of 3D and take distance-finding method.
Background technology:
Often laser ranging is used in optical ranging.This utilizes the features such as the monochromaticity of laser goes with coherence, high directivity, to realize high-precision metering and detection, as measured length, distance, speed, angle etc.Laser ranging can be divided into pulse type laser to find range and continuous wave phase laser distance measurement on technological approaches.Pulse type laser range measurement principle is similar to radar range finding, stadimeter is to objective emission laser signal, encounter target will be reflected back, velocity of propagation due to light is known, as long as so record the two-way time of light signal, 1/2nd of two-way time is multiplied by, the distance will measured exactly with the light velocity (300,000 thousand meter per second).Present widely used hand-held and Portable distance meter, operating distance is hundreds of rice extremely tens of km, and measuring accuracy is about five meters.The high precision distance detector to satellite ranging of China's development, measuring accuracy can reach several centimetres.Continuous wave phase laser distance measurement irradiates measured target with the laser beam of continuous modulation, and the phase place caused from measuring beam comes and goes changes, and can converse the distance of measured target.In order to ensure measuring accuracy, generally on measured target, laser reflector to be installed.The relative error that its is measured is 1,000,000/.
At present, optical ranging is at the very wide model of engineering field application, strongly professional, has higher requested knowledge to operating personnel.
Summary of the invention:
The object of this invention is to provide a kind of 3D and take distance-finding method, it is on 3D camera system basis, the laser module that configuration is applicable to, carry out the method for effectively range finding, can be applicable to the portable terminal device products such as mobile phone, there is processing ease, detecting distance accuracy high.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: its 3D camera system comprises 3D pick-up lens and laser module 3,3D pick-up lens comprises a 3D pick-up lens 1 and the 2nd 3D pick-up lens 2; Laser module 3 is positioned in the middle of a 3D pick-up lens 1 and the 2nd 3D pick-up lens 2, and three is centrally located on same straight line.
Measuring method of the present invention is:
A, laser module 3 outgoing collimated laser beam, get on the object point of required detecting distance;
B, image chip 4 are positioned in 3D pick-up lens imaging focal plane, the light signal that exploring laser light bundle reflects from detection object point;
C, 3D pick-up lens image-forming principle: Y=f*tan (A);
D, to be calculated by geometric relationship: (a) Y=f*tan (A)
(b)tan(A)=H／D
(c)D=H／tan(A)
Wherein, H is the centre distance (predetermined value) of laser module and 3D pick-up lens;
F is the effective focal length (predetermined value) of 3D pick-up lens;
D is for need find range from (unknown-value);
Y is the image height of test luminous point at image chip;
A is the angle (unknown-value) of tester luminous point and 3D pick-up lens central axis.
The present invention is on 3D camera system basis, and the laser module that configuration is applicable to, carries out the method for effectively range finding, can be applicable to the portable terminal device products such as mobile phone, have processing ease, detecting distance accuracy high.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of 3D camera system in the present invention,
Fig. 2 is distance-finding method of the present invention
Embodiment:
With reference to Fig. 1-Fig. 2, this embodiment by the following technical solutions: its 3D camera system comprises 3D pick-up lens and laser module 3,3D pick-up lens comprises a 3D pick-up lens 1 and the 2nd 3D pick-up lens 2; Laser module 3 is positioned in the middle of a 3D pick-up lens 1 and the 2nd 3D pick-up lens 2, and three is centrally located on same straight line.
The measuring method of this embodiment is:
A, laser module 3 outgoing collimated laser beam, get on the object point of required detecting distance;
B, image chip 4 are positioned in 3D pick-up lens imaging focal plane, the light signal that exploring laser light bundle reflects from detection object point;
C, 3D pick-up lens image-forming principle: Y=f*tan (A);
D, to be calculated by geometric relationship: (a) Y=f*tan (A)
(b)tan(A)=H／D
(c)D=H／tan(A)
Wherein, H is the centre distance (predetermined value) of laser module and 3D pick-up lens;
F is the effective focal length (predetermined value) of 3D pick-up lens;
D is for need find range from (unknown-value);
Y is the image height of test luminous point at image chip;
A is the angle (unknown-value) of tester luminous point and 3D pick-up lens central axis.
This embodiment is on 3D camera system basis, and the laser module that configuration is applicable to, carries out the method for effectively range finding, can be applicable to the portable terminal device products such as mobile phone, have processing ease, detecting distance accuracy high.
Claims (2)
1. 3D takes a distance-finding method, and it is characterized in that its 3D camera system comprises 3D pick-up lens and laser module (3), 3D pick-up lens comprises a 3D pick-up lens (1) and the 2nd 3D pick-up lens (2); Laser module (3) is positioned in the middle of a 3D pick-up lens (1) and the 2nd 3D pick-up lens (2), and three is centrally located on same straight line.
2. 3D takes a distance-finding method, it is characterized in that its measuring method is:
(A), laser module (3) outgoing collimated laser beam, get on the object point of required detecting distance:
(B), image chip 4 is positioned in 3D pick-up lens imaging focal plane, and exploring laser light bundle is from the light signal detecting object point and reflect;
(C), 3D pick-up lens image-forming principle: Y=f*tan (A);
(D), calculated by geometric relationship: (a) Y=f*tan (A)
(b)tan(A)=H／D
(c)D=H／tan(A)
Wherein, H is the centre distance of laser module and 3D pick-up lens;
F is the effective focal length of 3D pick-up lens;
D for need find range from;
Y is the image height of test luminous point at image chip;
A is the angle of tester luminous point and 3D pick-up lens central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533291.6A CN104567796A (en) | 2013-10-29 | 2013-10-29 | 3D shooting ranging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310533291.6A CN104567796A (en) | 2013-10-29 | 2013-10-29 | 3D shooting ranging method |
Publications (1)
| Publication Number | Publication Date |
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| CN104567796A true CN104567796A (en) | 2015-04-29 |
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| CN201310533291.6A Pending CN104567796A (en) | 2013-10-29 | 2013-10-29 | 3D shooting ranging method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507091A (en) * | 2016-11-14 | 2017-03-15 | 墨宝股份有限公司 | A kind of method of utilization 3D animations shooting and producing true man's theme Showmov piece |
| WO2018103498A1 (en) * | 2016-12-07 | 2018-06-14 | Zhejiang Geely Holding Group Co., Ltd. | Mobile terminal |
| CN108286958A (en) * | 2018-02-06 | 2018-07-17 | 北京优尔博特创新科技有限公司 | A kind of distance measuring method and range-measurement system |
| CN113310673A (en) * | 2021-04-02 | 2021-08-27 | 深圳市世宗自动化设备有限公司 | Method and device for detecting repetition precision, computer equipment and storage medium thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538763A (en) * | 2012-02-14 | 2012-07-04 | 清华大学 | Method for measuring three-dimensional terrain in river model test |
-
2013
- 2013-10-29 CN CN201310533291.6A patent/CN104567796A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538763A (en) * | 2012-02-14 | 2012-07-04 | 清华大学 | Method for measuring three-dimensional terrain in river model test |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507091A (en) * | 2016-11-14 | 2017-03-15 | 墨宝股份有限公司 | A kind of method of utilization 3D animations shooting and producing true man's theme Showmov piece |
| WO2018103498A1 (en) * | 2016-12-07 | 2018-06-14 | Zhejiang Geely Holding Group Co., Ltd. | Mobile terminal |
| US10715647B2 (en) | 2016-12-07 | 2020-07-14 | Zhejiang Geely Holding Group Co., Ltd. | Mobile terminal |
| CN108286958A (en) * | 2018-02-06 | 2018-07-17 | 北京优尔博特创新科技有限公司 | A kind of distance measuring method and range-measurement system |
| CN113310673A (en) * | 2021-04-02 | 2021-08-27 | 深圳市世宗自动化设备有限公司 | Method and device for detecting repetition precision, computer equipment and storage medium thereof |
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Application publication date: 20150429 |
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