Visualization of subtle defects of car body outer panels

Yun Chan Chung, Minho Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


In the development of press dies especially for outer panels in the automotive industry, the cycle of the press panel inspection and the die modification process is about one month. Car body die makers are trying to reduce the inspection and modification cycle time. Defects of pressed panels are important inspection items for die makers. Subtle defects on un-painted panels are difficult to find and measure even for skilled workers. This paper presents a method to visualize the subtle defects of car body outer panels from the 3D scan data. First, curvature estimation methods for the 3D scan data are devised and experimented. Second, measures to find defect regions from the curvature map are also devised and verified. Several examples are presented.

Original languageEnglish
Title of host publication2006 SICE-ICASE International Joint Conference
Number of pages4
Publication statusPublished - 2006
Externally publishedYes
Event2006 SICE-ICASE International Joint Conference - Busan, Korea, Republic of
Duration: 2006 Oct 182006 Oct 21

Publication series

Name2006 SICE-ICASE International Joint Conference


Other2006 SICE-ICASE International Joint Conference
Country/TerritoryKorea, Republic of


  • 3D scanning
  • Car body outer panels
  • Defect visualization
  • Panel surface defects

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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