Implementation of a Grid-Based Line-Drawing Quantization System

摘要

The object of this thesis is to develop a system that can be used to implement and evaluate various grid intersect codes. Grid intersect codes are used in line drawing quantization schemes which provide specialized methods for encoding drawings which consist solely of thin lines on a contrasting background. Examples of such drawings include weather maps, blue prints, and English text. The system will consist of a NOVA 1200 computer and digitizer. The digitizer consists of a sketch pad, a pen, and the electrical circuitry to determine the location of the pen relative to the sketch pad. The position of the pen is converted to digital information that is used as the input to the computer. The computer can use this data to implement various grid intersect algorithms. This thesis discusses the design of the interface of these separate components into a system. (Author)