Face image recognition: "Look," you remember you at a glance – Face Re
Main conferred State Natural Science Award in the field of basic research scientists discovered a significant, but a course known for Nanjing University of Technology and Engineering, this is winning in a heavy second prize, not only made the school Natural Science Award in achieving breakthrough, but also to make the province the academic marvel. To this day, Professor Yang Jingyu and his team prepared a full 25 years.
[Thought] the computer can recognize one thing you know
"Computer can have the cognitive ability of human beings do?" Engineering origin of Yang Jingyu, have long haunted the minds on this issue. To answer this question, he and his 25 years with great concentration, the research team to study the "make the computer recognize people know objects" feature extraction theory and algorithms.
Professor Yang explained that people have a strong ability to identify itself, such as a child, can quickly find themselves in a sea of familiar relatives. Through a variety of things or phenomena such as information processing and analysis, to describe, identify, classify and explain the process is pattern recognition. With the emergence of computers and the rise of artificial intelligence, it is hoped that the computer will also have basic knowledge of human ability, these mainly through a mathematician, an expert in information and computer scientists efforts.
Professor Yang further explained that they studied theory and algorithm of feature extraction is sufficient for the computer to provide the theoretical basis of intelligence: the formation of large amounts of information through the analysis of data, quickly identify the key characteristics of refined, simple algorithm to quickly complete the recognition process, so that computers and people, also on the person or thing "hit it off."
[Difficult], "Joe Smith" and "John Doe" ye distinction
No "head" of the computer, how can intelligently identify the people? Experts, to make only recognize "0" and "1" of the computer by dynamically accurate face recognition of the identity, is not an easy task. The same person's face image is not static, with the pose, illumination, facial expression, age changes, "photo" where people will be great changes; different people often face no shortage of similarities between two eyes a nose , "he" and "She" may resemble … … became the key issue of tackling the difficulties. Moreover, in a complex background images for face recognition, first of all need to face the natural background image will be detected, that is the human face and Other To distinguish objects.
During the identification of people, how accurate distinction between "Joe Smith" and "John Doe"? They want the characteristics of which showed a greater difference. Therefore, to distinguish between different individuals, "feature extraction" as face recognition authentication algorithm one of the most critical link. Feature extraction and identification features of the original analysis, there are two basic stages. Face images in a large number of samples of the library, look for similarities in the personality, look at the similarities in personality, re-use positive and negative samples for certification, can be, "piercing eyes" to the face and accurately identified.
Professor Yang introduced the problem of human face recognition both very difficult and challenging and important application value. Although they have not developed the current commercial applications, but proposes a series of face recognition algorithms are widely concerned about the domestic and foreign counterparts, the research group will continue to explore the field of pattern recognition.
It is understood that the use of human face recognition is very broad. For example, in "self-service passenger check-channel", 5 seconds, the computer system has been extracted human face, complete identity of passengers; access to the computer, as long as the laptop to install face recognition system to you take a picture, do not account and password can log in directly; in railway public security system, airport, as long as the use of facial information, you can automatically identify individual capacity; future home, the human face even when the key to open the door … …
[Results] Bank of the Customs Police were using new products
Beginning in 1984, feature extraction in pattern recognition theory and algorithm research, Professor Yang is not a small topic group out of the whole "movement." They have won seven National Natural Science Foundation project with a focus on the surface of the project funding, has made a number of original and innovative new concepts and new algorithms.
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