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What are the main application areas of face recognition system technology?
Faces have certain invariance and uniqueness. Face recognition is a way of human beings used in identity recognition. Secondly, face painting can also provide information about a person's gender, age, and ethnicity. The talents that humans show in face recognition are amazing, but it is very difficult for computers to recognize faces.
The important application of the face recognition system is the identification of human beings. The use of face recognition begins with the public security department's archiving and criminal investigation of criminals' photos. Now the skills are in the security system, business field and daily life. Many applications, mature applications, have the following:
Criminal investigation to solve the case, when the public security department obtained photos of criminals, can use face recognition skills, find similar people in the database of storage criminals as suspects, greatly saving the time of solving the case and the human resources.
Document verification, ID card, driver's license and many other documents have photos, use face recognition skills, and complete the computer to achieve automation and intelligent handling, such as credit card, the security comparison of such cards, may be lost, Stealing, the security of the application is relatively poor, and the feature information of the face on the card will greatly improve its security function.
Import control, demand import control range is relatively wide, can be the residence of important people living, save important information units, only humans feel safer important places can be imported control, the more commonly used viewing means is to check the documents .
Video surveillance, with 24-hour video surveillance in banks, companies, and public places. How to use video detection, tracking, and identification skills in screening and analyzing video pictures.
Face recognition skills can also be used in video conferencing, intelligent research of robots, etc. Human beings can easily distinguish one person based on face and use computer to perform automatic face recognition. There are still many difficulties, and the difference in face makes people The face recognition skills become abnormal and disorderly, and it is difficult to fight. The first aspect is reflected in the following aspects:
1. The expression on the face is messy, and the face has a variety of changing abilities. There are more than 50 facial muscles on the person's face. The movement of these muscles leads to the presentation of different facial expressions, which will form significant changes in facial features.
2. The face changes with age, and with the increase of age, the appearance of wrinkles and the laxness of facial muscles will change the structure and texture of the face;
3. There are easy-to-change attachments on the face, such as changing hairstyles, storing beards or wearing accessories such as hats and glasses;
4. Face features are masked, and all face and partial masking will form a fault recognition.
5. The face picture is distorted. Because of the different illumination, viewing angle and ingestion point of view, the gray scale distortion of the picture and the rotation of the viewpoint may be formed, which reduces the picture quality and increases the difficulty of recognition.
Face recognition involves the fields of pattern recognition, picture processing, computer vision, physiology and psychology. Face recognition belongs to biological recognition, and it belongs to the research field of pattern recognition. Biometric verification is very likely to replace the current password verification in the future. The skills of the demand must be known. (Author: Chak Henan Optical Information Technology Co., Ltd.)