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Title: System of understanding assembly illustrations in an assembly manual
Authors: He, Shoujie 
Abe, Norihiro
Kitahashi, Tadahiro
Issue Date: Oct-1994
Citation: He, Shoujie,Abe, Norihiro,Kitahashi, Tadahiro (1994-10). System of understanding assembly illustrations in an assembly manual. Applied Intelligence 4 (4) : 367-382. ScholarBank@NUS Repository.
Abstract: This paper presents an assembly illustration understanding system. The system is eventually expected to be applied to a robot which specializes in automated mechanical assembly. Assembly illustrations in an assembly manual usually have two features: 1) In addition to the figures corresponding to mechanical parts, several special line-drawings referred to as auxiliary lines in this paper are often employed for the visualization of the assembly relations among mechanical parts; 2) The assembly illustrations in an assembly manual are disposed sequentially so that the subgoal of an assembly illustration will definitely appear in its succeeding illustrations as an assemblage. Both features are important clues to the analysis and understanding of assembly illustrations. By extracting the auxiliary lines, the system recognizes assembly relations among mechanical parts, and the 3D shape of the mechanical parts as well. Moreover, based on the assembly relations, it conjectures the structural details of mechanical parts such as insertion holes which are usually invisible. After that, it characterizes the appearance of the completed assemblage described by the current illustration. The system finally verifies the result by matching with the figures in a succeeding illustration in which the completed assemblage is given as a subpart.
Source Title: Applied Intelligence
ISSN: 0924669X
Appears in Collections:Staff Publications

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