Book ChapterDOI
2. Algorithms for the Reduction of the Number of Points Required to Represent a Digitized Line or its Caricature
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The article was published on 2011-03-18. It has received 320 citations till now. The article focuses on the topics: Line (text file) & Reduction (complexity).read more
Citations
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Journal ArticleDOI
Generalized Image Recognition Algorithm for Sign Inventory
Zhaozheng Hu,Yichang Tsai +1 more
TL;DR: A generalized image recognition algorithm that can differentiate various types of signs based on shape, color, location, probability distribution function (PDF), and Haar features trained and selected by the AdaBoost cascade method is developed.
Journal ArticleDOI
A video‐based human fall detection system for smart homes
TL;DR: A novel video‐based human fall detection system that can detect a human fall in real‐time with a high detection rate and low false alarm rate is presented.
Proceedings ArticleDOI
Improving indoor navigation of autonomous robots by an explicit representation of doors
TL;DR: This paper proposes to augment standard approaches to navigation like 2D occupancy grid mapping and Monte-Carlo-Localization by the explicit representation of doors as door leaves and joints and demonstrates superior performance compared to a state-of-the-art approach to localization.
Journal ArticleDOI
Building Outline Extraction Using a Heuristic Approach Based on Generalization of Line Segments
TL;DR: A new approach that detects rough building boundaries (building mask) from Digital Surface Model data and then refines the resulting mask by classifying the geometrical features of the high spatial resolution panchromatic satellite image is proposed.
Journal ArticleDOI
An efficient rendering method for large vector data on large terrain models
TL;DR: A rapid simplification of large-scale vector maps while keeping their original topological relationships is achieved by using the frame buffer and Voronoi diagram and the impact of complexity of vector maps is reduced, and the rendering time is restricted to a certain scope.
References
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Journal ArticleDOI
Computer representation of planar regions by their skeletons
John L. Pfaltz,Azriel Rosenfeld +1 more
TL;DR: Any region can be regarded as a union of maximal neighborhoods of its points, and can be specified by the centers and radii of these neighborhoods; this set is a sort of "skeleton" of the region.
Journal ArticleDOI
The Application of Computation and Automatic Drawing Instruments to Structural Generalisation
TL;DR: An account of a series of experiments in computer generalisation, in which the outline of the Netherlands at 1:25 000 scale has been used to generate aseries of generalisations between 1:600 000 and 1:3 500 000.