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Face recognition is based on human facial features, for the input face image or video stream, first determine whether there is a face, if there is a face, then further give the position and size of each face and the location information of the main facial organs. Based on this information, the identity features contained in each face are further extracted and compared with the known face, so as to identify the identity of each face.

What are the functions of face recognition?

1. Face capture and tracking function

Face capture refers to detecting and separating the portrait from the background in a frame of an image or video stream, and saving it automatically. Portrait tracking refers to the use of portrait capture technology to track a specified portrait automatically when it moves within the range of the camera.

2. Face recognition and comparison

Face recognition is divided into two comparison modes: kernel real mode and search mode. Verification refers to comparing the captured portrait or the designated portrait with a registered pair in the database to determine whether it is the same person. A search-based comparison refers to searching all registered portraits in the database to find out whether a specified portrait exists.

3. Face modeling and retrieval.

The registered portrait data can be modeled to extract face features, and the face template (face feature file) can be generated and saved to the database. In the face search (search type), the specified portrait is modeled, and then compared with the template of everyone in the database, the list of the most similar people will be listed according to the similar values.

4. Real person identification function

The system can tell whether the person in front of the camera is a real person or a picture. In order to prevent users from using photos to fake. This technique requires the user to make matching movements of facial expressions.

5. Image quality detection.

The quality of the image directly affects the effect of the recognition. The detection function of the image quality can evaluate the image quality of the photos to be compared, and give the corresponding suggested values to assist the recognition.

37 Cang Xiaobian: "what are the functions of face recognition?" the relevant introduction is here first. I hope it will be helpful to you. To learn more about face recognition, please continue to follow Jiangsu Sanshiqi Cang Intelligent Technology Co., Ltd.

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