CN202956771U - Living body face identification device - Google Patents
Living body face identification device Download PDFInfo
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- CN202956771U CN202956771U CN 201220684324 CN201220684324U CN202956771U CN 202956771 U CN202956771 U CN 202956771U CN 201220684324 CN201220684324 CN 201220684324 CN 201220684324 U CN201220684324 U CN 201220684324U CN 202956771 U CN202956771 U CN 202956771U
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Abstract
The utility model relates to a living body face identification device and belongs to the technical field of face recognition. The living body face identification device comprises a light source, a fence panel, a camera and a computer, wherein the computer is respectively connected with the camera and the light source; a light beam which is emitted by the light source is blocked by the fence panel to form a parallel equal interval linear fringe pattern, and the parallel equal interval linear fringe pattern is projected to the surface of an identified object; and the camera converts an image of the identified object into a digital image and outputs the digital image to the computer. By using the projected parallel linear fringe pattern, a living body face, a static plane picture and a dynamic screen image are identified, and identification accuracy is high. Compared with the prior art, the living body face identification device has the advantages that an identified person does not need to change expressions to coordinate with identification; the defects that a static picture is identified and a screen dynamic image cannot be identified in the prior art are overcome; and the safety and convenience of a face recognition system are greatly improved. The living body face identification device is simple in structure, reliable in operation, high in identification speed and easy to implement.
Description
Technical field
The utility model relates to a kind of living body faces identification device, and particularly a kind of living body faces identification device for face identification system belongs to the face recognition technology field.
Background technology
Face recognition technology is differentiated people's identity by analyzing relatively people's face biological information.Compare with other biological characteristic authentication technique, recognition of face is a kind of more direct, more convenient, more friendly, easier non-infringement gender identity recognition technology that is accepted.Along with the widespread use of recognition of face identity authentication system, illegal use validated user photo has appearred with the security incident by authentication.
For identification true man and photo, some face identification systems have increased the living body faces identification function, determining to be identified object by identified person's countenance variation (nictation or smile) is the live body true man, there is following defective in this living body faces discrimination method: need identified person face to do a large amount of expression interoperations, man-machine interaction mode is unfriendly, the user is produced be weary of sense, and algorithm is complicated, reduce the speed of recognition of face; And, if utilize panel computer or notebook computer, when playing the video image of validated user, still can by authentication, cause security incident.
Summary of the invention
The purpose of this utility model is to propose a kind of living body faces identification device, and in identifying, the identified person does not need to do expression shape change and cooperates identification, can identify the screen equipment of playing validated user dynamic human face image simultaneously.
The living body faces identification device that the utility model proposes comprises:
Light source is used for providing stable luminous energy, to being differentiated that object throws light on;
The fence panel is used for blocking the illuminating bundle that light source sends, illuminating bundle is become project behind the parallel equidistant linear fringe shape illuminating bundle differentiated body surface, fence panel place light source with by between the discriminating object;
Video camera be used for to be taken the surface with the equidistant image of being differentiated object of striped, and is digital picture with the image transitions of taking, and digital picture is exported to computing machine;
Computing machine, the unlatching of control light source, the digital picture of acquisition camera output is judged the equidistant striped in the digital picture, if equidistantly striped is parallel equidistant linear fringe, then judges and is differentiated that object is non-living body people face; If equidistantly striped is crooked equidistantly striped, then judges and differentiated that object is living body faces.
The living body faces identification device that the utility model proposes, utilize the height change of true man face surface configuration, be modulated to the curved stripes that changes with people's face three-D profile with projecting identified person's linear fringe on the face, whether project identified person's linear fringe on the face by judgement occurs bending and deformation, and whether the striated pattern outside the facial contour suddenly disappears, differentiate living body faces and plane photo and flat screen, the accuracy rate of discriminating is very high.Compared with prior art, do not need the identified person to do expression shape change and cooperate identification, and solved the defective that prior art can only be differentiated still photo, can not differentiate the screen dynamic image, improved greatly security and the convenience of face identification system.Simultaneously, adopt the utility model device, simple in structure, reliable operation, distinguishing speed is very fast, and easy to implement.
Description of drawings
Fig. 1 is the structured flowchart of the face detection device that the utility model proposes.
Fig. 2 is the fence panel structure chart.
Fig. 3 is that the living body faces that face identification system collects is differentiated image, and wherein (a) is the image when projecting the linear fringe figure on the photo, (b) is the image when projecting the linear fringe figure on the living body faces.
Among Fig. 1, the 1st, light source, the 2nd, fence panel, the 3rd, video camera, the 4th, computing machine.
Embodiment
The living body faces identification device that the utility model proposes, its structured flowchart comprises as shown in Figure 1:
Light source 1 is used for providing stable luminous energy, to being differentiated that object throws light on, is differentiated that object may be identified person's face, also may be photo, panel computer screen or notebook computer screen etc.;
Fence panel 2, its structure are used for blocking the illuminating bundle that light source sends as shown in Figure 2, illuminating bundle is become project behind the parallel equidistant linear fringe shape illuminating bundle differentiated body surface, fence panel place light source with by between the discriminating object;
Video camera 3 be used for to be taken the surface with the equidistant image of being differentiated object of striped, and is digital picture with the image transitions of taking, and digital picture is exported to computing machine;
Computing machine 4, the unlatching of control light source, the digital picture of acquisition camera output is judged the equidistant striped in the digital picture, if equidistantly striped is parallel equidistant linear fringe, then judges and is differentiated that object is non-living body people face; If equidistantly striped is crooked equidistantly striped, then judges and differentiated that object is living body faces.
Among the embodiment of living body faces identification device of the present utility model, light source 1 adopts Ou Silang 3W large power white light LED (Light Emitting Diode) light emitting diode, it is opaque plastics sheet (the gap width 0.2mm of 0.3mm that fence panel 2 adopts thickness, slit spacing 0.4mm), video camera 3 adopts the CCD digital camera, and computing machine 1 adopts general purpose PC.
The principle of work of living body faces identification device of the present utility model is:
It is luminous that computing machine 4 is at first controlled light source 1, the illuminating bundle that light source 1 sends is blocked by fence panel 2, project by on discriminating object (identified person's face, photo, panel computer screen or the notebook computer screen) surface after making illuminating bundle become parallel equidistant linear fringe figure, video camera 3 will be differentiated, and the optical imagery of object is converted to digital picture, and digital picture is exported to computing machine 4.
Be the plane if be identified body surface, such as photo, panel computer screen and notebook computer screen, project the striped that is identified on the object and remain parallel lines, and on the background beyond the facial contour, still can see the parallel lines striped, shown in Fig. 3 (a), then computing machine 1 judges that being identified object is not living body faces.
Be living body faces if be identified object, because everywhere height is different on people's face surface, make and project the lip-deep linear fringe of identified person's face and occur bending and deformation, and the light that projects beyond the facial contour is absorbed by surrounding environment, can't be reflected back video camera 3, shown in Fig. 3 (b), the striated pattern bar that projects beyond the facial contour is suddenly disappeared, then computing machine 4 judges that being identified object is the live body true man.Then computing machine 4 cuts out light source 1, Resurvey video camera 3 output be identified facial image, extract identified person's face organ's feature and the relative position between them, again the people's face in itself and the face database is compared, thereby draws recognition result.
The parallel lines striated pattern that living body faces identification device of the present utility model utilization is throwed is away differentiated living body faces and static plane photo and flat screen dynamic image, the accuracy rate of differentiating is very high, compared with prior art, do not need the identified person to do expression shape change and cooperate identification, and solved the defective that prior art can only be differentiated still photo, can not differentiate the screen dynamic image, improved greatly security and the convenience of face identification system.Simultaneously, adopt the technical solution of the utility model, system architecture is simple and reliable, and distinguishing speed is very fast, and easy to implement.
Claims (1)
1. living body faces identification device is characterized in that this living body faces identification device comprises:
Light source is used for providing stable luminous energy, to being differentiated that object throws light on;
The fence panel is used for blocking the illuminating bundle that light source sends, illuminating bundle is become project behind the parallel equidistant linear fringe shape illuminating bundle differentiated body surface, fence panel place light source with by between the discriminating object;
Video camera be used for to be taken the surface with the equidistant image of being differentiated object of striped, and is digital picture with the image transitions of taking, and digital picture is exported to computing machine;
Computing machine, the unlatching of control light source, the digital picture of acquisition camera output is judged the equidistant striped in the digital picture, if equidistantly striped is parallel equidistant linear fringe, then judges and is differentiated that object is non-living body people face; If equidistantly striped is crooked equidistantly striped, then judges and differentiated that object is living body faces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684324 CN202956771U (en) | 2012-12-12 | 2012-12-12 | Living body face identification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220684324 CN202956771U (en) | 2012-12-12 | 2012-12-12 | Living body face identification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202956771U true CN202956771U (en) | 2013-05-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220684324 Expired - Lifetime CN202956771U (en) | 2012-12-12 | 2012-12-12 | Living body face identification device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202956771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034846A (en) * | 2012-12-12 | 2013-04-10 | 紫光股份有限公司 | Face indentification device for live person |
| CN107346419A (en) * | 2017-06-14 | 2017-11-14 | 广东欧珀移动通信有限公司 | Iris identification method, electronic installation and computer-readable recording medium |
-
2012
- 2012-12-12 CN CN 201220684324 patent/CN202956771U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103034846A (en) * | 2012-12-12 | 2013-04-10 | 紫光股份有限公司 | Face indentification device for live person |
| CN107346419A (en) * | 2017-06-14 | 2017-11-14 | 广东欧珀移动通信有限公司 | Iris identification method, electronic installation and computer-readable recording medium |
| US10839210B2 (en) | 2017-06-14 | 2020-11-17 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Iris recognition method, electronic device and computer-readable storage medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130529 |