Fundamental Study on Construction of the Digital Museum Oriented Sensory Scalable Representation

给后代留下伟大的艺术作品和历史资料是非常重要的。需要对这些材料进行数字化和存档，以防止老化。为了高保真地表现艺术作品，这些材料需要被数字化为超高清图像。此外，对于像雕像或瓷器这样的固体材料，需要用超高分辨率的数码相机全方位拍摄。这些数字数据量非常大，因此必须引入数据压缩技术。然而，有损压缩方案（如JPEG或MPEG）不适合对这些图像数据进行编码。为了保证这些图像数据的保真度，需要引入无损压缩方案。从这个角度来看，我们已经在2001-2003年日本科学促进会（批准号13450149）的科研资助项目(B)中提出了数字博物馆传输系统的基本概念。随后，我们研究了一种基于新思想的可扩展传输的数字博物馆系统。首先，我们提出了数字博物馆的基本传输系统。在系统中，采用运动补偿和马尔可夫模型作为编码模型，采用改进的自适应算法编码方法作为熵码器，研究了传感可扩展传输系统的基本概念。此外，我们还考虑了网络传输中的各种问题。特别地，我们提出了一种新的数字水印系统，用于版权保护和防止篡改。

It is very important to leave great art works and historical materials on the future generations. It is needed to digitize and archive these materials to prevent an aged deterioration. In order to represent art works with high fidelity, these materials should be digitized as super high definition images. Moreover, for solid materials like statue or china it is needed to take photographs by super high resolution digital camera in all directions. Amounts of these digital data are very large, so that data compression techniques have to be introduced. However, the lossy compression schemes such as JPEG or MPEG are not desirable for coding of these image data. In order to preserve these image data with high fidelity, loss-less compression schemes should be introduced.In this point of view, we already proposed the basic concept of the transmission system for the digital museum in the research project Grant-in-Aid for Scientific Research (B) of the Japan Society for the Promotion of Science (Grant No. 13450149), in 2001-2003. Successively, we have been studying a system of the digital museum using a scalable transmission based on new idea. Namely, at first, we proposed the fundamental transmission system of the digital museum. In our system, the motion compensation and Markov model are used as the coding model, and the modified adaptive arithmetic coding method is used as the entropy coder and secondary, we studied the basic concept of a sensory scalable transmission system. Moreover, we considered the various problems in the transmission via the network. Especially, we proposed the new digital watermarking system for copyright protection and tampering prevention.