The Line Drawing Interpretation Problem – Motivation – Manual Input vs Document Scanning – RasterBased vs Vector Representations – The Interpretation Problem – Engineering Drawings and Maps – Line Drawing Interpretation, Image Understanding and Pattern Recognition – Current Line Drawing Interpretation Systems – Commercial Systems – Laboratory Systems – The Line Drawing Interpretation Literature – Components of a Line Drawing Interpretation System – Design Criteria for Drawing Interpretation Systems – Five Stages of Line Drawing Interpretation – Intermediate and Target Representations – Raster Representations – Vector Representations – Universal Drawing Entities – TwoDimensional Objects – ThreeDimensional Shape and Semantics – System Architectures and the Role of A Priori Knowledge – Sequential Architectures – Blackboard Architectures: The Expert System Approach – Document Image Acquisition – Scanning Devices – Image Coding – Image File Formats – Binarisation – A Taxonomy of Thresholding Techniques – Document Image Statistics – Binarising Line Drawings – PointDependent Threshold Selection – RegionDependent Threshold Selection – Image Partitioning – Binary Image Processing and the Raster to Vector Transformation – Raster to Vector Conversion – Some Defmitions – The Distance Transform – Mathematical Morphology – Reducing Noise in Binary Images – Reducing Noise in Binary Images of Line Drawings .
