Automatic execution of workflows on laser-scanned data for extracting bridge surveying goals

Pingbo Tang, Burcu Akinci

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Graphical abstract: Highlights: Manual data processing impedes bridge inspectors from effectively using 3D data. A framework for executing user-defined 3D data processing workflows is developed. Automatic workflow executions save more than 70% of surveying goal extraction time. Workflow automation enables quantitative characterization of data processing options With the capability of capturing detailed geometry of bridges in minutes, laser scanning technology has attracted the interests of bridge inspectors and researchers in the domain of bridge management. A challenge of effectively utilizing laser scanned point clouds for bridge inspection is that inspectors need to manually extract and measure large numbers of geometric features (e.g., points) for deriving geometric information items (e.g., the minimum underclearance) of bridges, named as bridge surveying goals in this research. Tedious manual data processing impedes inspectors from quantitatively understanding how various data processing options (e.g., algorithms, parameter values) influence the data processing time and the reliabilities of the surveying goal results. This paper shows the needs of automatic workflow executions for extracting surveying goals from laser scanned point clouds, and presents a computational framework for addressing these needs. This computational framework is composed of formal representations of workflows and mechanisms for constructing and executing workflows. Using a prototype system implemented based on this framework, we constructed and quantitatively characterized three workflows for extracting three representative bridge surveying goals, using three metrics of workflow performance defined in this research: exhaustiveness of measurement sampling, reliability of surveying goal results, and time efficiency.

Original languageEnglish (US)
Pages (from-to)889-903
Number of pages15
JournalAdvanced Engineering Informatics
Volume26
Issue number4
DOIs
StatePublished - Oct 2012

Fingerprint

Surveying
Lasers
Automation
Inspection
Sampling
Scanning
Geometry

Keywords

  • 3D data processing
  • Bridge inspection
  • Imaging techniques
  • Information systems
  • Laser scanning
  • Scientific workflow

ASJC Scopus subject areas

  • Artificial Intelligence
  • Information Systems

Cite this

Automatic execution of workflows on laser-scanned data for extracting bridge surveying goals. / Tang, Pingbo; Akinci, Burcu.

In: Advanced Engineering Informatics, Vol. 26, No. 4, 10.2012, p. 889-903.

Research output: Contribution to journalArticle

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