Pattern recognition technology is the basic technology of artificial intelligence. The 21st century is a century of intelligence, informationization, computing, and networking. In this world characterized by digital computing, pattern recognition technology as the basic discipline of artificial intelligence technology must Will gain huge development space
In the international arena, major authoritative research institutions and major companies have begun to pay attention to pattern recognition technology as the company's strategic research and development focus.
Pattern recognition Since the development in the 1920s, a common view is that there is no single model for all pattern recognition problems and a single technology for solving identification problems. We only have a tool bag. What we have to do is Combine statistical and syntactic identification with specific problems, combine statistical pattern recognition or syntactic pattern recognition with heuristic search in artificial intelligence, and combine statistical pattern recognition or syntactic pattern recognition with machine learning of support vector machines. Combine artificial neural network with various existing technologies and expert systems and uncertain reasoning methods in artificial intelligence, deeply grasp the effectiveness and possible possibilities of various tools, learn from each other's strengths, and create a new situation of pattern recognition application. .
1. Speech recognition technology
Speech recognition technology is gradually becoming the key technology of human-machine interface in information technology. The application of voice technology has become a competitive emerging high-tech industry. Market Forecast for China Internet Center: In the next five years, the Chinese voice technology industry will have a market capacity of more than 40 billion yuan, and then grow at a rate of more than 30 per year.
2. Biometric technology
Bio-certification technology The most popular safety certification technology in this century, its development is the general trend. People are willing to forget all passwords, throw away all magnetic cards, and identify their identity and confidentiality by their uniqueness. International Data Group (IDC) predicts that biometric technology, the core technology of mobile e-commerce as the inevitable development direction in the future, will reach a market scale of 10 billion U.S. dollars in the next 10 years.
3, voiceprint recognition
In recent years, in the field of biometrics, voiceprint recognition technology has attracted worldwide attention for its unique convenience, economy and accuracy, and has become an important and popular way of verifying people's daily life and work. Moreover, the speech recognition method using genetic algorithm to train continuous hidden Markov model has become the mainstream technology of speech recognition. This method has faster recognition speed and higher recognition rate in speech recognition.
4, fingerprint recognition
The lines created by the unevenness of the skin on the palms of our hands and on the inside surfaces of the fingers, feet, and toes form a variety of patterns. The lines of these skins are unique in pattern, breakpoints, and intersections, and are unique. By relying on this uniqueness, a person can be associated with his fingerprint, and by comparing his fingerprint with a pre-saved fingerprint, he can verify his true identity. The general fingerprint is divided into several major categories: leftloop, rightloop, twinloop, whorl, arch and tentedarch; this way, each person's fingerprints can be classified and retrieved. Fingerprint recognition can be basically divided into several major steps: preprocessing, feature selection, and pattern classification.
5, digital watermarking technology
The digital watermarking technology that has been developed internationally since the 1990s is the digital media copyright protection technology with the most development potential and advantages. IDC predicts that digital watermarking technology will have a global market capacity of more than $8 billion over the next five years.
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