Preprocessing of engineering drawings for 3D reconstruction
ISCI '90 Proceedings of the first international conference on systems integration on Systems integration '90
A System for Recognizing a Large Class of Engineering Drawings
IEEE Transactions on Pattern Analysis and Machine Intelligence
Syntactic interpretation approaches for innovative engineering drawings conversion support system
ICC&IE Selected papers from the 22nd ICC&IE conference on Computers & industrial engineering
A System for Interpretation of Line Drawings
IEEE Transactions on Pattern Analysis and Machine Intelligence
A String Based Method to Recognize Symbols and Structural Textures in Architectural Plans
GREC '97 Selected Papers from the Second International Workshop on Graphics Recognition, Algorithms and Systems
Graphics Recognition - from Re-engineering to Retrieval
ICDAR '03 Proceedings of the Seventh International Conference on Document Analysis and Recognition - Volume 1
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Symbol recognition using spatial relations
Pattern Recognition Letters
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This paper introduces the idea that recognition and interpretation of engineering drawings should be two interwoven phases, with each providing feedback to another, and applies this idea to a dynamic-rule-based method. Recognition rules with attributes are obtained by an automatic object feature extraction procedure, and stored in rule database. During the recognition phase, rules are firstly selected according to two attributes, domain and priority. Then the thresholds of the rules are adjusted automatically to obtain better match results and their priorities are modified dynamically to improve recognition efficiency. Especially, the interpretation phase based on the recognition is also valued in validating and rectifying the recognition result automatically and efficiently. This approach was implemented in a system for recognizing and interpreting architectural structure drawings, and has shown to embody good self-adaptability to various drafting conventions.