Novel automatic fingerprint anti-fake and vivo detection method, system and device

A living body detection and fingerprint technology, which is applied in the detection of live finger shape, acquisition/organization of fingerprints/palmprints, and print image acquisition, etc. Accuracy, solving the effect of manual intervention

Inactive Publication Date: 2018-08-24
SHENZHEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing automatic fingerprint identification systems are easily hacked by artificial fingers
Existing automatic fingerprint anti-counterfeiting systems based on optical tomography technology all perform manual intervention and judgment on the collected results, and finally draw a conclusion that no automatic judgment is realized and no additional functions

Method used

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  • Novel automatic fingerprint anti-fake and vivo detection method, system and device
  • Novel automatic fingerprint anti-fake and vivo detection method, system and device
  • Novel automatic fingerprint anti-fake and vivo detection method, system and device

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Embodiment Construction

[0053] figure 1 The method for the novel fingerprint automatic anti-counterfeiting and living body detection provided by the present invention is shown, which is described in detail as follows:

[0054] Step S1, using OCT (based on optical coherence tomography) to collect fingerprint images; the image collection device based on optical coherence tomography includes an OCT device arranged under the fixed lens barrel of the window. The OCT device is a high-speed SD-OCT system, and performs high-resolution tomographic imaging of the internal microstructure of biological tissues by measuring the interference signal of backscattered light from the sample.

[0055]Step S2, preprocessing the collected fingerprint image; performing wavelet transform processing on the image in the preprocessing of the collected fingerprint image, and sending the processing result to the feature extraction module. The wavelet transform processing is to use wavelet transform on the image to remove high-...

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Abstract

The invention is suitable for the technical field of biological feature recognition, and provides a novel automatic fingerprint anti-fake and vivo detection method. The method comprises the followingsteps of: S1, acquiring a fingerprint image by utilizing OCT equipment; S2, preprocessing the acquired fingerprint image; S3, carrying out feature value extraction on the preprocessed fingerprint image; and S4, carrying out anti-fake recognition and vivo detection according to the extracted fingerprint image feature value, and outputting a result. According to the method, manual interventions areeffectively solved, the fingerprint anti-fake recognition accuracy is improved, and the system is enabled to have vivo detection ability. The device provides multiple different areas for fingerprint acquisition, so that acquisition equipment can select different areas for different fingerprint tasks and then the flexibility of the acquisition equipment is increased.

Description

technical field [0001] The invention belongs to the technical field of biological feature identification, and in particular relates to a novel fingerprint automatic anti-counterfeiting and living body detection method, system and device. Background technique [0002] Information security is of great importance in the modern digital age. Biometrics are considered a powerful means of protecting ideas and material possessions. Today, many biometric security systems are in use to avoid property damage. Biometrics is based on the measurement and statistical analysis of people's physical or behavioral characteristics. These physical or behavioral characteristics include, but are not limited to, fingerprints, faces, DNA, irises, palm prints, gait, and voice. Among these biometric features, fingerprints are considered to be the most popular and effective. More than 40% of biometric systems worldwide also employ this method. [0003] Numerous fingerprinting techniques are widely...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/40G06K9/62
CPCG06V40/1353G06V40/1371G06V40/1388G06V40/1318G06V10/30G06F18/22
Inventor 刘凤刘国杰沈琳琳
Owner SHENZHEN UNIV
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