A kind of human face living detection device and method based on mems infrared array sensor
An array sensor and living body detection technology, applied in the field of face recognition, can solve the problems of large volume, complex detection methods, high equipment cost, etc., and achieve the effect of simple operation process, simple structure and low price
Active Publication Date: 2021-06-15
杭州软库科技有限公司
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[0004] The present invention mainly solves the problems of high equipment cost, large volume, and complicated detection method in face recognition living body detection in the prior art, and provides a human face living body detection device and method based on MEMs infrared array sensor
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[0046] Present embodiment. A kind of human face living body detection device based on MEMs infrared array sensor, such as figure 1 As shown, it includes a data acquisition end 1 and a processing end 2, the data acquisition end includes an infrared array sensor unit 11 and a camera unit 12, and the processing end includes a data receiving unit 21, a face recognition unit 22, an outline extraction unit 23 and a living body analysis unit 24 , the infrared array sensor unit and the camera unit are respectively connected to the data receiving unit, the data receiving unit is connected to the contour extraction unit, the contour extraction unit, and the living body analysis unit respectively, the face recognition unit is connected to the contour extraction unit, and the contour extraction unit is connected to the living body analysis unit connected.
[0047] Camera unit: collect image information of the face area; the camera unit adopts a conventional two-dimensional camera.
[004...
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The invention discloses a face living body detection device and method based on a MEMs infrared array sensor. It solves the problems of high equipment cost and complex detection methods in the face recognition live detection in the prior art. The device includes a data acquisition end and a processing end, the data acquisition end includes an infrared array sensor unit and a camera unit, and the processing end includes a data receiving unit, a contour extraction unit and a living body analysis unit; the device synchronously collects image information of the face area and infrared array temperature distribution image information, and perform face recognition detection; after the face recognition detection, the head contour is extracted, the temperature data of the head block and the background block are obtained, and the first living body judgment and the second living body judgment are carried out, and the judgment after passing the test is carried out. for real human faces. The invention adopts the MEMs infrared array sensor combined with the common camera to detect the face living body, the equipment is simple, the cost is low, the method calculation is simple, and the complexity of living body discrimination is reduced.
Description
technical field [0001] The invention relates to the technical field of face recognition, in particular to a face liveness detection device and method based on a MEMs infrared array sensor. Background technique [0002] Face recognition is a technical means of personal identification through facial biometrics. With the continuous development of computer and network technology, biometric identification methods such as face recognition are more and more widely used. Face recognition technology is usually used in the field of security, which requires a high level of defense against attacks. Ordinary face recognition technology cannot identify whether the face is from a real person or a photo, face mask, video playback, 3D model, etc. Therefore, it is essential to add a live detection function to the face recognition system. [0003] At present, liveness detection is mainly realized through motion, 3D camera, optical flow method, infrared camera, and various information fusion...
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IPC IPC(8): G06K9/00
CPCG06V40/166G06V40/168G06V40/45
Inventor 郭洁
Owner 杭州软库科技有限公司