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Method and device for human face vivo detection

A technology of liveness detection and human face, which is applied in fraud detection, instrument, character and pattern recognition, etc., can solve the problem of low recognition accuracy and achieve the effect of improving accuracy

Active Publication Date: 2017-05-31
HANVON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a human face liveness detection method and device to solve the problem of low recognition accuracy of existing face liveness detection methods

Method used

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  • Method and device for human face vivo detection
  • Method and device for human face vivo detection
  • Method and device for human face vivo detection

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Experimental program
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Embodiment 1

[0031] This embodiment provides a face detection method, which is applied to electronic devices with active light sources, such as figure 1 As shown, the method includes: Step 10 to Step 12.

[0032] Step 10, acquiring a first image and a second image containing a face to be detected whose acquisition time interval is shorter than a preset duration.

[0033] During specific implementation, the active light source may be an active infrared light source, such as an infrared LED supplementary light, or an active visible light source, such as an LED lamp whose emission wavelength is within the range of visible light.

[0034] The front panel of an electronic device for face recognition is usually provided with a camera for collecting face images to be recognized, and the electronic device applied in the present invention is also provided with an active light source. When performing face recognition, the electronic device will start an active light source to supplement light on th...

Embodiment 2

[0049] see figure 2 , the face liveness detection method disclosed in another embodiment of the present invention is applied to an electronic device with an active light source, and the method includes steps 20 to 24.

[0050] Step 20, acquiring a first image and a second image containing a face to be detected whose acquisition time interval is shorter than a preset duration.

[0051] Wherein, the first image is an image collected in an environment in which the active light source is activated, and the second image is an image collected in an environment in which the active light source is turned off. During specific implementation, the active light source may be an active infrared light source. In this embodiment, the face liveness detection method is described in detail by taking the active light source as an active infrared light source. Images collected under the environment of infrared light source. In this embodiment, the electronic device is provided with an infrared...

Embodiment 3

[0097] see Figure 5 , in another embodiment of the face detection method of the present invention, the method includes step 50 to step 55.

[0098] Step 50, acquiring a first image and a second image containing a face to be detected whose acquisition time interval is shorter than a preset duration.

[0099] For a specific implementation manner of collecting the first image and the second image including the face to be detected through the camera within the preset time, refer to Embodiment 2, and details are not repeated here.

[0100] Step 51, respectively determine the regions to be detected in the first image and the second image.

[0101] For a specific implementation manner of determining the regions to be detected in the first image and the second image respectively, refer to Embodiment 2, which will not be repeated here.

[0102] Step 52, acquiring a difference image of the region to be detected in the first image and the second image.

[0103] For a specific impleme...

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Abstract

The invention provides a method of human face vivo detection, which belongs to the field of biometrics recognition and solves the problem that the human face vivo detection method in the prior art is low in recognition accuracy. The method comprises steps: a first image and a second image containing a to-be-detected human face and with an acquisition time interval smaller than a preset time duration are acquired, wherein the first image is an image acquired in an environment of starting an active light source, and the second image is an image acquired in an environment of closing the active light source; then, to-be-detected areas in the first image and the second image are determined respectively, and a differential image for the to-be-detected areas in the first image and the second image is acquired; to-be-recognized features are extracted from the differential image; and finally, the to-be-recognized features are inputted to a preset classifier, and human face vivo detection is carried out, wherein the to-be-detected area uses the to-be-detected human face as a center, and comprises the to-be-detected human face and a partial background around the to-be-detected human face.

Description

technical field [0001] The invention relates to the field of biological feature recognition, in particular to a method and device for detecting human face liveness. Background technique [0002] Biometric recognition technology is widely used in various fields of life. Among them, face recognition technology is the most widely used because of its convenient feature collection and hygiene. For example, face recognition is used in the fields of security and access control. With the expansion of the application field of face recognition, more and more methods of attacking face recognition have emerged. Common attack methods include using media such as face photos, videos, and 3D mask models to simulate faces in front of face recognition equipment to attack face recognition. It can be seen that most of the attacks on face recognition in the prior art are non-living media. Therefore, it is an urgent problem to be solved to detect the liveness of the face to be recognized to resi...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/166G06V40/168G06V40/45
Inventor 刘昌平黄磊孙旭东
Owner HANVON CORP
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