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Target detection of automobile engine connecting rod image based on sub-pixel level

  • Hongjuan Yang*
  • , Decai Meng
  • , Lei Wang
  • , Yunchu Zhang
  • , Jianrong Cao
  • *Corresponding author for this work
  • Shandong Jianzhu University
  • Shandong Key Laboratory of Intelligent Buildings Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The quality of connecting rod of automobile engine directly affects the transmission performance of engine and is an important factor affecting the safety of automobile.Target detection is a key technology that affects the precision of multi-parameter identification of automobile engine connecting rod mass based on machine vision. This paper proposes a sub-pixel-based target detection method for automobile engine connecting rod image. A multi-parameter detection image acquisition system for automobile engine connecting rod quality was built. Based on multi-threshold analysis to eliminate image shadows, a Gaussian homomorphic filter was designed to enhance the contrast between the image target and the background. Subpixel level analysis and Hough transform are used to detect straight line, circle and other objects in engine connecting rod images, which provides a basis for automatic identification of multi-parameter connecting rod quality based on machine vision. An example of target detection in an engine connecting rod image shows the effectiveness of the proposed method.

Original languageEnglish
Title of host publication2nd International Conference on Computer Vision, Image, and Deep Learning
EditorsBadrul Hisham bin Ahmad, Fengjie Cen
PublisherSPIE
ISBN (Electronic)9781510646810
DOIs
StatePublished - 2021
Externally publishedYes
Event2nd International Conference on Computer Vision, Image, and Deep Learning - Liuzhou, China
Duration: 25 Jun 202127 Jun 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11911
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2nd International Conference on Computer Vision, Image, and Deep Learning
Country/TerritoryChina
CityLiuzhou
Period25/06/2127/06/21

Keywords

  • Engine connecting rod
  • Gaussian homomorphic filter
  • Multi-threshold analysis
  • Sub-pixel level analysis
  • Target detection

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