Earticle

초록

영어

This paper proposes a gradation image processing method for the development of a Road Sign Recognition Platform (RReP), which aims to facilitate the rapid and accurate management and surveying of approximately 160,000 road signs installed along the highways, national roadways, and local roads in the cities, districts (gun), and provinces (do) of Korea. RReP is based on GPS(Global Positioning System), IMU(Inertial Measurement Unit), INS(Inertial Navigation System), DMI(Distance Measurement Instrument), and lasers, and uses an imagery information collection/classification module to allow the automatic recognition of signs, the collection of shapes, pole locations, and sign-type data, and the creation of road sign registers, by extracting basic data related to the shape and sign content, and automated database design. Image division and merging, which were applied in this study, produce superior results compared with local binarization method in terms of speed. At the results, larger texts area were found in images, the accuracy of text recognition was improved when images had been gradated. Multi-threshold values of natural scene images are used to improve the extraction rate of texts and figures based on pattern recognition.

목차

ABSTRACT
 I. Introduction
 II. Review of Technology Trends
  1. Studies of Other Sign Recognition
  2. Studies of Road Sign Recognition
 III. Image Processing before text Recognition
  1. The Method of Image Processing for Text Recognition
  2. Color Band Collection for Suitable Value Application
  3. Image Division Method
 V. Summary and Discussion
 References

키워드

저자

• Kyusoo Chong [ 국건설기술연구원 SOC성능연구소 ICT융합연구실 수석연구원 ] 주저자 및 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국ITS학회논문지 [The Journal of The Korean Society of Intelligent Transport Systems]

• 간기

  격월간

• pISSN

  1738-0774

• eISSN

  2384-1729

• 수록기간

  2003~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 326 DDC 338