CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

id 2006_106
authors Achten, Henri
year 2006
title Feature clusters for online recognition of graphic units in drawings
source Communicating Space(s) [24th eCAADe Conference Proceedings / ISBN 0-9541183-5-9] Volos (Greece) 6-9 September 2006, pp. 106-112
summary Automated recognition of sketch drawings can provide the means for a natural interface between the designer and a design support system. Sketch drawing recognition is knowledge-intensive in the sense that the system must know what to look for in a drawing. In earlier work, we identified 24 different types of representations, termed graphic units. For recognition of graphic units we combine a multi-agent approach and online recognition. Each agent is specialised for one graphic unit. It continuously parses the online input stream for stroke features that fall within its scope. When an agent-specific threshold is reached, the agent puts a claim. Each agent has a specific cluster of features that can be viewed as distributed over a decision tree. The activation pattern of feature clusters over the decision tree is an indication which graphic unit is likely to be identified by the system. In this paper, we present the exhaustive set of features for agents and a binary decision tree over which the features are distributed.
keywords Image recognition; sketches; graphic units; feature-based modelling
series eCAADe
email H.H.Achten@tue.nl
full text file.pdf (338,942 bytes)
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100%; open Achten, H.H. (1997) Find in CUMINCAD Generic representations , PhD-thesis, Eindhoven University of Technology, Eindhoven
100%; open Achten, H.H. (2005) Find in CUMINCAD Resolving some ambiguities in realtime design drawing recognition by means of a decision tree for agents , B. Martens and A. Brown (eds), Computer Aided Architectural Design Futures 2005, Springer, Dordrecht, pp. 311-320
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