Hangzhou Hikvision Digital Technology Co., Ltd.

Weichang Kang

Kui Li

Lujie Si

Chao Liu

Chuan Shen

Xianlin Zhao

Congyi Hua

Zhihao Ren

Dong Zhang

Fan Wei

Hongshuai Wang

Shaojie Ding

Wenwei Yang

A fingerprint input method, apparatus, system and an electronic device are provided. The method includes: obtaining a fingerprint as a current fingerprint (S); comparing the current fingerprint with a fingerprint stored in a fingerprint database (S); storing, when it is determined that there is no fingerprint identical with the current fingerprint in the fingerprint database, the current fingerprint in the fingerprint database. It can be seen that before storing the obtained current fingerprint into the fingerprint database, it is firstly determined whether there is a fingerprint identical with the current fingerprint in the fingerprint database, and when it is determined that there is no fingerprint identical with the current fingerprint in the fingerprint database, the current fingerprint is stored in the fingerprint database, to avoid the occurrence of duplicate fingerprints in the fingerprint database, avoid the input of the duplicate fingerprints, and improve the user experience.

Fingerprint entry method and apparatus, and system and electronic device

A method, an apparatus and an electronic device for face liveness detection based on a neural network model are provided. The method includes: a target visible light image and a target infrared image of a target object to be detected are obtained (S); a first face image is extracted from the target visible light image, and a second face image is extracted from the target infrared image (S); a target image array of the target object is generated based on multiple monochromatic components of the first face image and a monochromatic component of the second face image (S); and feeding the target image array into a pre-trained neural network model for detection, to obtain a face liveness detection result of the target object (S).

Face liveness detection based on neural network model

Provided are a method and apparatus for preventing an illegal attack, and an electronic device. According to one embodiment, the method comprises: when a user feature of a user is identified successfully, determining whether a living body detection result for the user feature indicates failure; if the living body detection result for the user feature indicates failure, locking a feature ID when the feature ID of the user feature is not locked and a locking condition of the feature ID is satisfied currently; and if the living body detection result for the user feature indicates success, unlocking the feature ID when the feature ID of the user feature is locked and an unlocking condition of the locked feature ID is satisfied currently.

Illegal attack prevention

A method, device and system for controlling opening of A-B doors are disclosed, which are applicable to a host of a system with A-B doors, the system with A-B doors comprising a first access control for controlling entry through the door A, a second access control for controlling entry through the door B and an electronic authorization conversion device. The method comprises: receiving a first verification request for an object to be verified sent by the first access control (S); determining whether the object to be verified has authorization to pass through the door A (S); if it does, sending an opening command for opening the door A to the first access control (S); receiving, after the door A has been opened, an electronic authorization conversion request for the object to be verified sent by the electronic authorization conversion device, converting the authorization of the object to be verified to authorization to pass through the door B, determining a first validity time period for passing through the door B, and storing the first validity time period (S); receiving a second verification request for the object to be verified sent by the second access control (S); retrieving the stored first validity time period (S); determining whether the door B can be opened (S); if it does, sending an opening command for opening the door B to the second access control (S), thus improving the security of A-B doors.

Method, device and system for controlling opening of A-B doors

Growing community of inventors

Hangzhou, China

Weichang Kang