Face recognition system and attendance checking device

Abstract

The invention belongs to the technical field of face recognition, and particularly discloses a face recognition system and an attendance checking device. The face recognition system comprises an image collection unit, a recognition unit and an illumination unit, and the image collection unit is used for intermittently collecting images in a face recognition area; the recognition unit is used for comparing whether an acquired image is consistent with an image in the database and outputting a comparison result, the illumination unit is provided with a brightness acquisition end and is used for acquiring the illumination brightness of the environment, a brightness threshold is stored in the illumination unit, and when the illumination brightness of the environment is smaller than the brightness threshold, the light output end of the illumination unit is started; when the illumination brightness of the environment is larger than the brightness threshold value, the dark light output end of the illumination unit is started, and the bright light output end and the dark light output end of the illumination unit are both arranged in the middle of the face recognition area. According to the technical scheme, the face recognition system and the attendance checking device are utilized, proper light rays are adjusted in a targeted mode, and the accuracy of face recognition is improved.

Description

technical field [0001] The invention belongs to the technical field of face recognition, and relates to a face recognition system and an attendance device. Background technique [0002] Face recognition is a biometric technology for identification based on human facial feature information. A series of related technologies that use cameras or cameras to collect images or video streams containing human faces, automatically detect and track human faces in the images, and then perform facial recognition on detected faces, usually also called portrait recognition and facial recognition. . The existing face recognition time attendance machine uses this technology to realize the attendance of employees. [0003] At present, the face recognition attendance machine is fixed at a certain place at the entrance of the company. When employees go to and from get off work, they use the camera to collect the employee's facial data and compare it with the face information entered in advanc...

AI Technical Summary

Problems solved by technology

When the brightness of the light is low or high, the facial features of the human body collected by the face recognition device are blurred, and the face recognition device cannot extract effective facial features from the collected image information, resulting in the failure of face recognition

And studies have shown that the darker the human body's own skin color, the lower the recognition rate of the face recognition device. For people with darker skin, under ordinary light, their facial features and other skin colors are not clearly distinguished in the image, which is not conducive to human Face recognition system for facial feature extraction

However, the existing face recognition devices cannot provide suitable light for different lighting conditions or different skin colors, resulting in face recognition errors.

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