A Study on the Strage and Exchange for Multimedia Educational Information through Network

本研究探讨了多媒体教育信息在网络上的存储和交换。多媒体教育信息在学校教育和终身学习中的应用。研究首先探讨了在终身学习中实施什么类型的教育，使用什么样的多媒体信息。然后，研究了教育领域中存在着什么样的有用的多媒体信息。此外，研究还探讨了通过网络利用多媒体信息需要什么样的计算机系统。考虑到多媒体在学校教育中的应用，本研究还考虑了大容量多媒体文件的使用问题。在捆绑图像文件时，我们处理了大量的文件格式。在这种情况下，由于消除了文件容量，JPEG文件格式非常有用。在本研究中，提出了一种新的压缩方法，与传统的JPEG相比，该方法具有更好的压缩能力，在没有图像失真的情况下，可以比JPEG压缩10%以上。这项研究不仅考虑了图像，也考虑了音频。多媒体格式有很多，因此本研究将从Autio到Image的大约350种多媒体格式分为12类，以识别每种格式。最终建立了WWW多媒体教育信息库，并将其应用于世界各地的学校教育。此后，每个人都可以从遥远的接入点每次共同拥有多媒体数据库，这是理想的教育环境。

This research has treated the storage and exchange for multimedia educational information through network. The educational information for multimedia is utilized in school education and lifelong learning.The research has treated first what type of education is practiced and what type of multimedia information is used in the lifelong learning. Then, the research has treated next what type of the usefull multimedia information exists in the education field. Further, the research has treated what type of computer system is necessitated for utilizing the multimedia information through network. The research has also considered the problem of the use of large size multimedia files after considering the utilization of multimedia in the school education. When straging the image files, we treat a large amount of file formats. The JPEG file format is usefull in this case because of the elimination of the file capacity. In this research, a new compression method has been proposed, which has the advantage of improved compression ability compared with conventional JPEG.The proposed method can be compressed more than 10% compared with JPEG with no image distortion. The research considers not only image but also audio. There are a lot of multimedia formats, so the research has classified about 350 multimedia formats from autio to image into 12 categories in order to recognize the each format. The final result is the construction of WWW multimedia educational information database, which is utilized in the school education in the world. After then, everyone can own jointly the multimedia database every time from far access points, which is the ideal educational environment.