I. Indirect Methods A. Tiling Methods B. Variations on Tiling Methods C. Indirect, Voxel-Based Methods D. Indirect, Sub voxel-Based Methods II. Direct Methods for Display of Surfaces in Binary Data A. Octree Methods B. Object-Space Methods C. Image-Space Methods III. Direct Binary Methods for Display of Surfaces in Gray-Scale Data IV. Direct Binary Methods for Display of Intensity Distributions...

A prominent functionality of a Wireless Sensor Network (WSN) is environmental monitoring. For this purpose the WSN creates a model for the real world by using abstractions to parse the collected data. Being cross-layer and application-oriented, most of WSN research does not allow for a widely accepted abstraction. A few approaches such as database-oriented and publish/subscribe provide acceptab...

This paper explores the possibilities of visualizing document similarities and differences in both spatial and topical domains. Building on previous studies of geographical information retrieval and textual information retrieval (IR) systems, we report on the development of an information browsing tool, GeoVIBE. The system consists of two types of browsing windows, GeoView and VibeView, that wo...

Mental mapping of spaces, and of the possible paths for navigating these spaces, is essential for the development of efficient orientation and mobility skills. Visual ability is a crucial component to effective mental mapping. People who are blind consequently find it difficult to generate useful mental maps of spaces and navigate competently within them. The research studies reported in this p...

A contact representation by triangles of a graph is a set of triangles in the plane such that two triangles intersect on at most one point, each triangle represents a vertex of the graph and two triangles intersects if and only if their corresponding vertices are adjacent. De Fraysseix, Ossona de Mendez and Rosenstiehl proved that every planar graph admits a contact representation by triangles....

We present a low cost system for unassisted mobility of blind people built with off-the-shelf technology. Our system takes as input the depth maps produced by the Kinect c ©device coupled with the data from its accelerometer to provide a registered point based 3D representation of the scene in front of the user. We developed a time-critical framework to analyze the scene and classify the ground...

Three types of HST: square tiling (e.g., Quadtree and Spatial Pyramid), rectangular tiling (HST-RECT), triangular tiling (HST-TRI) Representation Given a set of scene configurations (scene label maps), we present a learning-by-parsing (EM-like) method to learn the HST representation including the branching probability at Or-nodes and the tiling dictionary. E-Step: fix HST and infer parse tree b...

This paper proposes a way of removing noises and reducing the number of colors contained in a JPEG image. Main purpose of this project is to convert color images to monochrome images for the color-blind. We treat the crispy color images like the Tokyo subway map. Each color in the image has an important information. But for the color blinds, similar colors cannot be distinguished. If we can con...

GPS trajectories collected from automotive telematics for insurance purposes go beyond being a collection of points on the map. They are in fact powerful data source that we can use to extract map and road network properties. While location junctions is readily available, information about traffic control element regulating intersection typically unknown. However, this would be helpful, e.g., c...