提出了一整套数字化壁画保护修复的技术，并描述了利用该技术进行数字化壁画保护修复的系统体系结构及运行机制。首先提出了智能化交互的壁画临摹辅助技术和基于色彩协调的壁画色彩演变技术然后介绍了根据相应技术，实现的智能化壁画临摹辅助系统和石窟壁画文物保护修复辅助系统。文章的最后提出了在数字化文物保护研究修复与开发利用方面的进一步设想。

Many rare culture relics and sites have been on the verge of great danger because of natural disaster, eco-nomic and tour development, etc. How to conserve, research and exploit the heritage resource is becoming more and more instant and important. In this paper, we discuss how t ocomserve, rebuild and restore culture relics and sites digitally, through the integration of computer science and ocnventional heritage-protection technology. Now, we have developed Dunhuang Cave Virtual Navigation System through taking advantage of the Virtual Reality, Image Processing and Artificial Intelligence technology. These works improve the efficiency of heritage conservation and research extremely.

Image segmentation has been the subject of considerable research activity over the last three decades. This paper proposes an algorithm for color image segmentation by region growing combined with the image enhancement based on the Bezier model. Using Bezier curve model has a direct impact on the quality of the image, and will enhance the boundary differences between the objects and their background making the image segmentation task easier. The segmentation starts from a seed in the form of 3*3 image blocks to avoid the noise point. It grows up the region by adding adjacent pixels that are satisfied with the homogeneous criteria with the seed point, expand point and the growing region respectively. Using the perceptual color clustering, color images is quantized and the similar colors are classified based on NBS color distance. The experimental results illuminate that the algorithm the paper proposed is effective.

网络技术日趋成熟的今天，虚拟现实技术在网络上的应用领域也越来越广。传统的虚拟现实技术大多为面向单机或宽带网络环境所设计，在internet 上应用时遇到了新的困难。本文针对普通internet 用户的计算机性能、网络带宽等环境因素以及在电子商务、旅游、房产等应用领域内网上虚拟现实应用遇到的传输速度、真实感、交互等问题提出了一系列的技术手段：利用基于图像的虚拟现实模型有效减小模型体积以加快传输速度；从照片建立虚拟现实模型提高真实感；定义图像内物体的形状和位置信息增加交互能力等。上述技术，为现有internet条件下虚拟现实技术的广泛应用找到了一条切实可行的路线。

Cooperative work is becoming a comprehensive and effective product design method, and the application of multimedia and multiple design modes has made cooperative design system more natural and easier to use. By now, most of the cooperative design is specific-task oriented and carried out through a specific multimedia cooperative design tool. But with the improved requirements of agility and design efficiency of product design, more and more attention is paid to the design platform that supports multiple design tasks using multiple cooperative design tools. Based on the analysis of a comprehensive cooperative design model, this paper presents a framework supporting multimedia and multiple design modes. This framework is based on an open hierarchy, which is able to embed multiple cooperative design tools. And it also provides a series of cooperative design services. Then several key technologies of the framework are discussed: the intelligent agent based cooperative tool configuration technique, synchronous/asynchronous design mode control, consistency control of the cooperative design object, and at last the extensible multimedia organization model. Finally, this paper will present an application example of the framework, and then will evaluate the framework and draw a conclusion.