Transdimensional Processing of Captured Data Computation

使用现实世界的数据，如三维数据和图像数据进行计算和通信已经变得非常流行和容易。事实上，现实世界的数据正在迅速增加，如距离图像、体积数据、数码照片和视频等。这种真实世界的数据通常是巨大的，因此处理此类数据的计算和通信成本非常昂贵。本研究旨在开发基于“跨维度处理”概念的处理现实世界数据的有效技术。三个目标是“二维图像的插值”、“三维数据的分析”和“颜色的分析”。在二维图像的插值方面，我们取得了“基于笔触模型的绘画变形”和“基于极线几何的实时视图变形”两项成果。绘画变形以两幅图像作为输入，并生成一个变形序列，该序列的帧都以绘画风格呈现。实时视图变形还可以从不同的视图位置对同一场景进行两张图像的合成，并在中间视点合成图像。该技术可以实时生成具有纹理映射能力的图像。本研究还在三维数据分析意义上成功开发了“用于地理导航图生成的景观的超透视投影”和“标量场的拓扑体骨架化”。前者通过沿山脊线和沟壑线对地形模型进行细分，自动生成导图。后者为用体积骨架法分析标量场提供了一种新的方法。适用于体绘制传递函数的设计。色彩分析的研究实现了“自然图像的视觉密码学”和“铅笔画效果的纹理筛选方法”。视觉密码学是一种只能用人的视觉系统进行解码的密码学。例如，如果将带有随机点的两张OHP纸堆叠在一起，就会出现隐藏图像。该研究开发了一种处理高质量自然图像的新技术。少

It has become much popular and easy to use real-world data such as three dimensional data as well as image data for computation and communication. In fact, real world data is rapidly increasing like range image, volumetric data, digital photo and video, etc. This kind of real world data is generally huge so that the computational and communication costs to handle such data is quite expensive. This study aimed at developing the efficient techniques for handling real-world data based on the concept of 'transdinesional processing'. The three targets are 'interpolation of 2D image', 'analysis of 3D data', and 'analysis of color'.Concerning the interpolation of 2D image, we made two achievements, namely 'painterly morphing using brush stroke model' and 'real-time view-morphing based on epipolar geometry.' The painterly morphing takes two images as input and generates a morphing sequence whose frames are all rendered in painterly style. The real-time view-morphing also takes two pictures of … More the same scene taken from the different view positions and synthesizes images from the in between viewpoints. This technique can generate images in real-time with texture mapping capability.This study also succeeded in developing 'surperspective projection of landscapes for geographical guide-map generation' and 'topological volume skeletonization of scalar field' in the sense of 3D data analysis. The former study can automatically generates a guide-map by subdividing the terrain model along ridge lines and ravine lines. The latter one provides us a new measure for analyzing the scalar field with volume skeletonization. It is applicable to design a transfer function for volume rendering.The study on color analysis achieved 'visual cryptography for natural images' and 'texture screening method for pencil drawing effects.' The visual cryptography is a kind of cryptography which can be decoded only with the human visual system. For instance, a hidden image appears if two OHP sheets with random dots are stacked together. The study developed a new technique for handling a natural image with high image quality. Less