Research Of Chinese Character Image Recognition Technology For The Multi-media Learning

The technology to recognize Chinese character in image is a practical technology that can automatically recognize the Chinese character by using computers. It is widely used in different areas. The character recognition technology can also be applied to childhood education, which provides the young children a new human-computer interaction form .In additional, the multimedia technology can provide the children a good Chinese character learning environment full of images, text and sound. Thus the character recognition technology and multimedia technology can combine to form the Chinese characters recognition technology particularly for multi-media learning. It can not only identify the character image automatically, but also it can present the character images in various forms of multimedia information such as pictures, sounds, video, audio, animation and so on, which can provide children a good learning environment full of images, text and sound. It makes up the shortcomings like the emptiness and uncertainty of the shape and meaning of Chinese characters in traditional education, and also the shortcomings of rote learning. In addition, it can reduce the difficulty of Chinese characters learning, enhance the practical ability of students, and promote children to learn more actively, seriously and attentively, which in all provide a more effective way for children to learn Chinese characters.Based on the research of the Chinese character image recognition technology, and combined with multimedia information, this paper realizes the representation of the character image recognition and multimedia information. Then, these technologies are used to develop a system prototype for Chinese character learning. And the algorithm in this paper proves to be effective after the system test.The main contents are as follows:(1) Feature selection and the design of classifier. Based on the features of Chinese characters, the density of stroke and the gray-scale projection are extracted to be the features of Chinese characters. And the method of feature extraction by dynamic classification is applied according to the different stroke scopes. Then, different classifiers are selectively designed according to the different scopes of feature extraction. Based on the feature of the gray-scale projection, this paper introduces the method of template matching of gray-scale projection to realize the Chinese character image recognition.(2) The conflict management mechanism. The conflict management mechanism is used to solve the problem of Chinese characters conflicts that appear in the process of Chinese characters image recognition. The conflicts mainly can be divided into two cases: multi-codes for sole-character and multi-characters for sole-code and. According to different scenarios, this paper will adopt different conflict management mechanism.(3)The learning mechanism. To solve the problem that some Chinese characters can't be identified in the process of Chinese character recognition, this paper uses the learning mechanism to extract the characteristics of Chinese characters and input the multimedia information. According to the difference of the extracted feature during the learning process, the learning mechanism can be divided into kinds that are the stroke-density learning mechanism and the gray-scale projection learning mechanism. Meanwhile, As to the problem of threshold choice in the process of template matching, this paper chooses the corresponding learning mechanism to determine the threshold automatically.At last this paper develops the system prototype based on the above algorithm and the results prove that the system can effectively identify the image of Chinese characters, and can aid children's learning by multimedia information.