CN106125151A - Anti-detector of taking on the sly based on smart mobile phone - Google Patents
Anti-detector of taking on the sly based on smart mobile phone Download PDFInfo
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- CN106125151A CN106125151A CN201610517053.XA CN201610517053A CN106125151A CN 106125151 A CN106125151 A CN 106125151A CN 201610517053 A CN201610517053 A CN 201610517053A CN 106125151 A CN106125151 A CN 106125151A
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- mobile phone
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- telescope
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- 230000003287 optical effect Effects 0.000 claims abstract description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 11
- 238000005286 illumination Methods 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 6
- 238000003384 imaging method Methods 0.000 claims description 5
- 101100117236 Drosophila melanogaster speck gene Proteins 0.000 claims description 4
- 230000005236 sound signal Effects 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 2
- 230000004297 night vision Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- MIANMZBSGSPFQC-AIUXZDRISA-N (2r)-2-acetamido-3-(2-carboxyethylsulfinyl)propanoic acid Chemical compound CC(=O)N[C@H](C(O)=O)CS(=O)CCC(O)=O MIANMZBSGSPFQC-AIUXZDRISA-N 0.000 description 1
- 240000004272 Eragrostis cilianensis Species 0.000 description 1
- 235000011464 Pachycereus pringlei Nutrition 0.000 description 1
- 240000006939 Pachycereus weberi Species 0.000 description 1
- 235000011466 Pachycereus weberi Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
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- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
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Abstract
A kind of anti-detector of taking on the sly based on smart mobile phone of the present invention, including: containing photographic head and the smart mobile phone of 3.5mm earphone interface, containing Laser Drive plate, the laser instrument of lithium battery and telescope.Laser instrument, lithium battery and telescope are fixed on mobile phone by support.Support can be with horizontal adjustment and vertical adjustment position so that before telescope is placed in mobile phone camera, and with mobile phone camera optical axis coincidence, laser optical axis is parallel with telescope optic axis.Laser Drive plate is connected with mobile phone by 3.5mm earphone interface, obtains mobile phone field synchronization information, drives laser instrument output optical pulse.The present invention realizes efficient detecting pinhole photographic head, mobile phone camera, night vision device etc. and has the optical device of " chatoyancy "; can be widely used for the public place such as hotel, hotel; effectively protect the privacy of people, there is the biggest market efficiency and good application prospect.
Description
(1) technical field
The present invention is a kind of anti-detector of taking on the sly based on smart mobile phone, refers in particular to a kind of pin hole based on smart mobile phone
Photographic head detector, belongs to photoelectric imaging technology field, relates to anti-burglary, anti-equipment of taking on the sly, particularly relates to a kind of based on intelligence
Automatically the detection system identifying pinhole cameras of mobile phone.
(2) background technology
Day by day spread unchecked by the pinhole cameras phenomenon peeped that carries out taking on the sly, the right of privacy of this citizen that constituted a serious infringement, shadow
Ring people to live normally.In prior art, the product that strick precaution pinhole cameras is peeped has a lot.Wireless pin hole is imaged
Head, can use wireless sensing technology, and such detection techniques is the most ripe at present.But for wire transmission or make
Memory-aided photographic head, wireless sensing equipment will not work.To this end, " opal " effect of photographic head can be utilized, use
Optical mode detecting photographic head.Its operation principle is as follows:
Utilize optical characteristics detecting photographic head principle as it is shown in figure 1, figure 1 is the laser instrument of anti-device of taking on the sly, in dotted line
For photographic head, 2 is camera lens, and 3 is photographic head photo-sensitive cell.The incident ray AB that laser instrument sends is through camera lens
2 converge in the E point on focal plane, are reflected by focal plane, by light path principle of reversibility, along backtracking." chatoyancy " target
The reflectance of luminance factor background is much higher, may recognize that " chatoyancy " target according to this principle.
Existing utilization " chatoyancy " carries out the equipment of pinhole cameras detection, the FC6003MK II of such as ACECO company
Photographic head detector.This detector is divided into wireless signal acquisition device and optical detector two parts, and wherein optical detector is by driving
Galvanic electricity road, high brightness red-light LED, HONGGUANG optical filter composition.In use, drive circuit drives LED to send the HONGGUANG of stroboscopic, people
Eye is observed by optical filter.When there is photographic head target in LED illumination region, according to " chatoyancy ", will at photographic head
Have and significantly flash speck, thus judge whether the photographic head hidden.
Existing pinhole cameras detector all reaches to visit by eye-observation photographic head " chatoyancy " speck
The purpose surveyed, these products use and are inconvenient for, inefficiency.If by embedded system Automatic-searching " chatoyancy " mesh
Mark, can be greatly improved work efficiency, it is contemplated that the real-time of system and algorithm complex, embedded system cost is by non-
Chang Gao, it is difficult to be widely used in civil area.In recent years, smart mobile phone is more and more universal, and the processor that smart mobile phone is embedded
With GPU (graphic process unit) from strength to strength.Utilize smart mobile phone to realize automatic detecting pinhole photographic head, can be substantially reduced hard
Part cost.
(3) summary of the invention
1, purpose: for the problems referred to above, the invention provides the design of a kind of anti-detector of taking on the sly based on smart mobile phone
Scheme, only needs a laser instrument, telescope and relevant drive circuit, and image processing section is to be entered by interior of mobile phone processor
OK.Relevant image processing software only need to be installed during use on mobile phone, and hardware components is fixed on hands by a support
On machine, can use.This detector hardware cost is the lowest, and overcomes existing anti-product of taking on the sly and can only pass through eye-observation
The weakness of " chatoyancy " target photographic head, it is achieved automatic searching photographic head, the function of automatic alarm, is greatly improved detection
Efficiency.
2, technical scheme:
The present invention provides a kind of anti-detector of taking on the sly based on smart mobile phone, including: connect containing photographic head and 3.5mm earphone
The smart mobile phone of mouth, containing Laser Drive plate, the laser instrument of lithium battery and telescope.Laser instrument, lithium battery and telescope are logical
Cross support to be fixed on mobile phone.Support can be with horizontal adjustment and vertical adjustment position so that telescope is placed in mobile phone camera
Before, and with mobile phone camera optical axis coincidence, laser optical axis is parallel with telescope optic axis.Laser Drive plate passes through 3.5mm ear
Machine interface is connected with mobile phone, obtains mobile phone field synchronization information, drives laser instrument output optical pulse.
Wherein, the synchronous control signal of laser pulse illumination is provided by mobile phone camera image acquisition rate signals.Pass through
Cell phone software obtains the field sync signal of smart mobile phone photographic head, and is exported specific audio signal by 3.5mm earphone interface, touches
Send out laser pulse work.
Wherein, before smart mobile phone photographic head, install telescope additional, make imaging viewing field≤15 °, with laser illumination visual field phase
Coupling.
In order to reduce the complexity of image procossing and improve the discrimination of target, the present invention uses active imaging and passive imaging mode.
Obtaining the main by motion video of pinhole cameras of taking on the sly by mobile phone photographic head, laser instrument exports pulse laser,
Gather when there being laser to irradiate is actively image, collection by motion video when irradiating without laser.If there is pin hole in visual field
Photographic head, actively in image, target has speck, by motion video then without.As long as actively image and passive image subtraction, i.e.
Major part background can be filtered, highlight pinhole cameras target, thus be easy to find out pinhole cameras position.
Mobile phone camera image acquisition and the laser pulse synchronization of laser instrument.Obtain smart mobile phone by cell phone software to image
The field synchronization information of head, drives 3.5mm earphone interface to export specific audio signal, triggers laser illumination pulse so that hands
Machine photographic head obtains in odd-numbered frame the active image of laser lighting, even frame obtain without laser lighting by motion video.
After obtaining active and passive image, carry out image procossing by interior of mobile phone processor and GPU, if finding doubtful mesh
Mark, cell phone software will mark target location on mobile phone screen, and facilitate user to check.
3, advantage and effect:
The present invention is according to " chatoyancy " principle, it is provided that a kind of anti-detector of taking on the sly based on smart mobile phone, it is achieved efficiently
Detecting pinhole photographic head, mobile phone camera, night vision device etc. have the optical device of " chatoyancy ", can be widely used for hotel, guest
The public places such as shop, effectively protect the privacy of people, have the biggest market efficiency and good application prospect.(1) image is adopted
Collection and image procossing are all carried out by smart mobile phone, and cost is the lowest.(2) can work under the illumination condition that night is different by day,
There is the strongest practicality.(3) main, after passive image difference, the interference of removable major part background, can improve the fortune of algorithm
Calculate speed.
(4) accompanying drawing explanation
Fig. 1 is " chatoyancy " schematic diagram.
The composition of based on smart mobile phone the anti-detector of taking on the sly of Fig. 2 present invention and structure chart.
1, the laser instrument 2 of pinhole cameras detector, pinhole cameras camera lens 3, pinhole cameras photo-sensitive cell
4, Laser Drive plate 5,3.5mm earphone interface 6, mobile phone camera
7, smart mobile phone 8, connecting line 9, laser instrument
10, telescope objective 11, telescope ocular 12, telescope
13, support 14, lithium battery
(5) detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention become apparent from.Below in conjunction with accompanying drawing to involved in the present invention
A kind of based on smart mobile phone anti-detector of taking on the sly be embodied as be described in detail, but the present invention is not limited only to this enforcement
Scheme.
As in figure 2 it is shown, a kind of anti-detector of taking on the sly based on smart mobile phone of the present invention, by smart mobile phone 7, laser instrument 9, swash
Light device drives plate 4, lithium battery 14 and telescope 12 to form, and wherein telescope ocular 11 side is near mobile phone camera 6, telescope
Object lens 10 are outwardly.Operation system of smart phone can be android, ios or windows mobile, and hardware is taken the photograph with mobile phone
As a 6 and 3.5mm earphone interface 5.Laser instrument 9, lithium battery 14 and telescope 12 are fixed on smart mobile phone 7 by support 13,
Laser optical axis is parallel with telescope optic axis.Support 13, with clamping device, can be fixed on the mobile phone that width is 5cm to 10cm
On.Telescope 12 can be with horizontal adjustment and vertical adjustment position so that telescope optic axis and mobile phone camera optical axis coincidence.
Optical output power of laser is 20mW, and wavelength is 650nm.Laser instrument is held by external lithium battery power supply, lithium battery
Amount is 1000mAh, and system can be made more than 10 hours to work continuously.Laser instrument is with beam expanding lens, and the angle of divergence is 10 °, can be effective
Pinhole cameras target in detection 5m.Laser instrument 8, with Laser Drive plate 4, controls laser instrument and sends pulse laser, the two
Connected by connecting line 8.Laser Drive plate 4 is connected with smart mobile phone 7 by 3.5mm earphone interface 5, obtains mobile phone field synchronization
Information, makes laser instrument flicker frequency identical with photographic head frame rate.
General intelligence mobile phone camera visual field is more than 40 °, and the present invention, with telescope, is fixed on mobile phone telescope and scoops up picture
Before Tou, within making photographic head visual field be down to 15 °, slightly larger than illumination field of view.
The smart mobile phone that the present invention is directed to different operating system develops corresponding software, and software function includes:
1, mobile phone camera field sync signal is obtained.
2, field sync signal controls the mobile phone 3.5mm earphone interface specific audio signal of output, triggers Laser Drive plate.
3, capturing active and passive image, and carried out target recognition to main by motion video, recognizer includes following step
Rapid:
Step one: two adjacent two field pictures are registrated.When being scanned target, adjacent two two field pictures just have one
Fixed displacement difference, therefore it need to be carried out registration Algorithm.
Step 2: adjacent two two field picture calculus of differencess.Adjacent two two field picture one frames are active image, and a frame is by cardon
Picture, main carried out calculus of differences by motion video after, can filter major part background interference.
Step 3: differentiated image is filtered computing, removes the noise interference in background image.
Step 4: filtered image is set a threshold value, carries out binaryzation computing.
Step 5: binary image is carried out dilation operation.
Step 6: connected component labeling computing, calculates the length-width ratio of connected domain external world rectangle, determines whether target with this.
Claims (5)
1. an anti-detector of taking on the sly based on smart mobile phone, it is characterised in that it includes: connect containing photographic head, 3.5mm earphone
The smart mobile phone of mouth, containing Laser Drive plate, the laser instrument of lithium battery and telescope；Laser instrument, lithium battery and telescope are logical
Crossing support to be fixed on mobile phone, support can be with horizontal adjustment and vertical adjustment position so that telescope is placed in mobile phone camera
Before, and with mobile phone camera optical axis coincidence, laser optical axis is parallel with telescope optic axis；Laser Drive plate passes through 3.5mm ear
Machine interface is connected with mobile phone, obtains mobile phone field synchronization information, drives laser instrument output optical pulse.
Anti-detector of taking on the sly based on smart mobile phone the most according to claim 1, it is characterised in that: image at smart mobile phone
Install telescope before Tou additional, make imaging viewing field≤15 °, match with laser illumination visual field.
Anti-detector of taking on the sly based on smart mobile phone the most according to claim 1, it is characterised in that: by mobile phone
Photographic head obtains the main of pinhole cameras of taking on the sly and is carried out image acquisition, pin hole shooting by motion video, interior of mobile phone processor and GPU
Head target recognition, completes anti-warning of taking on the sly.
Anti-detector of taking on the sly based on smart mobile phone the most according to claim 3, it is characterised in that: taken the photograph by mobile phone
As head obtains the main by motion video of pinhole cameras of taking on the sly, specially laser instrument output pulse laser, adopts when there being laser to irradiate
Collection is actively image, collection by motion video when irradiating without laser；If there is pinhole cameras in visual field, actively in image
Target has speck, by motion video then without；As long as actively image and passive image subtraction, major part background can be filtered,
Highlight pinhole cameras target.
Anti-detector of taking on the sly based on smart mobile phone the most according to claim 4, it is characterised in that: mobile phone camera image
Gather the laser pulse synchronization with laser instrument；Obtained the field synchronization information of smart mobile phone photographic head by cell phone software, drive
3.5mm earphone interface exports specific audio signal, triggers laser illumination pulse so that mobile phone camera obtains in odd-numbered frame
Have an active image of laser lighting, even frame obtain without laser lighting by motion video.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517053.XA CN106125151A (en) | 2016-07-05 | 2016-07-05 | Anti-detector of taking on the sly based on smart mobile phone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517053.XA CN106125151A (en) | 2016-07-05 | 2016-07-05 | Anti-detector of taking on the sly based on smart mobile phone |
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| CN106125151A true CN106125151A (en) | 2016-11-16 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315201A (en) * | 2017-07-22 | 2017-11-03 | 范永浩 | Camera scanner detector |
| CN108226953A (en) * | 2017-12-19 | 2018-06-29 | 中国人民解放军战略支援部队航天工程大学 | A kind of pinhole cameras detection method and device based on dual-beam alternate emission |
| CN109714511A (en) * | 2019-01-17 | 2019-05-03 | 苏州工业园区小步电子科技有限公司 | All-in-one multifunctional machine |
| CN110287342A (en) * | 2019-06-27 | 2019-09-27 | 维沃移动通信有限公司 | Equipment detection method, device, mobile terminal and storage medium |
| CN110458819A (en) * | 2019-08-06 | 2019-11-15 | 软通智慧科技有限公司 | Positioning method, device, equipment and medium for hidden camera |
| CN111123388A (en) * | 2020-04-01 | 2020-05-08 | 北京三快在线科技有限公司 | Detection method and device for room camera device and detection equipment |
| CN112291417A (en) * | 2020-09-27 | 2021-01-29 | 北京理工大学 | An embedded device based on mobile phone camera to detect tiny lenses |
| CN112291418A (en) * | 2020-09-27 | 2021-01-29 | 北京理工大学 | Buckle type device for detecting micro lens based on mobile phone camera |
| CN112351155A (en) * | 2019-08-06 | 2021-02-09 | Oppo（重庆）智能科技有限公司 | Electronic device, anti-candid camera for electronic device and control method thereof |
| CN113835095A (en) * | 2021-11-25 | 2021-12-24 | 北京嘉普之光科技有限公司 | Detection device and detection method |
| CN119001889A (en) * | 2024-08-07 | 2024-11-22 | 北京众智信安信息技术研究院 | Method and equipment for detecting remote hidden lens |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315201A (en) * | 2017-07-22 | 2017-11-03 | 范永浩 | Camera scanner detector |
| CN108226953B (en) * | 2017-12-19 | 2020-08-11 | 中国人民解放军战略支援部队航天工程大学 | Pinhole camera detection method and device based on double-beam alternate emission |
| CN108226953A (en) * | 2017-12-19 | 2018-06-29 | 中国人民解放军战略支援部队航天工程大学 | A kind of pinhole cameras detection method and device based on dual-beam alternate emission |
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| CN110287342A (en) * | 2019-06-27 | 2019-09-27 | 维沃移动通信有限公司 | Equipment detection method, device, mobile terminal and storage medium |
| CN110458819A (en) * | 2019-08-06 | 2019-11-15 | 软通智慧科技有限公司 | Positioning method, device, equipment and medium for hidden camera |
| CN112351155A (en) * | 2019-08-06 | 2021-02-09 | Oppo（重庆）智能科技有限公司 | Electronic device, anti-candid camera for electronic device and control method thereof |
| CN112351155B (en) * | 2019-08-06 | 2023-02-17 | Oppo（重庆）智能科技有限公司 | Electronic device, anti-candid camera for electronic device and control method thereof |
| CN111123388A (en) * | 2020-04-01 | 2020-05-08 | 北京三快在线科技有限公司 | Detection method and device for room camera device and detection equipment |
| CN112291417A (en) * | 2020-09-27 | 2021-01-29 | 北京理工大学 | An embedded device based on mobile phone camera to detect tiny lenses |
| CN112291418A (en) * | 2020-09-27 | 2021-01-29 | 北京理工大学 | Buckle type device for detecting micro lens based on mobile phone camera |
| CN113835095A (en) * | 2021-11-25 | 2021-12-24 | 北京嘉普之光科技有限公司 | Detection device and detection method |
| CN119001889A (en) * | 2024-08-07 | 2024-11-22 | 北京众智信安信息技术研究院 | Method and equipment for detecting remote hidden lens |
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