Development of a non-verbal communication technique using signlanguage and live CG techniques and its communication experiment across different languages using a communications satellite

本文的研究成果如下：(1)针对互联网上的虚拟化身技术，提出了虚拟化身语言的概念，实现了非语言交流。(2)我们开发了一种新的编程语言LIFO，它是从LIP语言和Forth语言衍生而来的，用于实现虚拟化身语言的CG动画的高速处理。(3)为了跨越语言障碍，我们开发了一个用于从虚拟化身语言生成对应于单词的CG动画的CG系统。使用开发的CG系统开发了一个用于化身语言交流的服务器-客户端系统。(4)使用软件工具：MatLab构建了一个化身语言聊天系统，该系统不需要复杂的计算机编程，从而得到了简单的聊天系统。(5)在日本和韩国的化身环境中进行了使用化身语言进行交流的实验，利用日本通信卫星JCSAT进行了通信实验，验证了所开发的化身语言聊天系统的有效性。(7)为了将虚拟执行环境控制系统应用于通信卫星上的化身语言通信，提高了远程访问的响应性。(8)提出了一种新的移动广播地球静止卫星城市屏蔽和卫星分集特性的估计方法，为通信卫星将来用于化身通信提供了数据。

The research results are listed as follows ;(1) We proposed a new concept of 'avatar language' in relation to avatar technique in the Internet to realize a non-verbal communication, where gestures and emotional expressions of avatars are displayed using CG (computer graphics) animations.(2) We developed a new programming language Lifo, which is a descendant of Lisp and Forth language to achieve high-speed processing in producing and displaying CG animations of avatar language.(3) We developed a CG system for generating CG animations corresponding to words from avatar language in order to communicate across the linguistic barrier. A server-client system is developed for avatar-language communication using the developed CG system.(4) We constructed an avatar-language chatting system using a software tool : MATLAB, where the system is constructed without complicated computer programming, resulting in simple chatting system.(5) An experiment was conducted between avatars in Japanese and Korean environments to communicate using avatar language, resulting in collecting a basic data to develop a practical system of a non-verbal communication using avatar language in future.(6) A communication experiment using Japanese communication satellite JCSAT was conducted to confirm the validity of the developed avatar-language chatting system.(7) We proposed the virtual execution environment control system in order to apply to the avatar language communication via communication satellites, where responsiveness for the remote access was improved.(8) We proposed a new estimation technique of urban shielding and satellite diversity characteristics for mobile broadcast geo-stationary satellite to obtain data for the practical use of communication satellite for avatar communication in future.