HEADLAMP AIMING SYSTEM UTILIZING PICTURE PROCESSING

Recently, research on machine vision has been increased. Utilizing machine vision, we have developed a headlamp aiming system. Up to now, aiming operation of the car headlamps has been performed visually by the operator using his own judgement. But it is hard to deal with various complicated light patterns of halogen lamps and with the increased number of different body styles. In order to make it easy for the operator, we have developed an assistance system. This consists of an ITV camera which scans the light pattern displayed on a screen, a converter which digitalizes its analog signal and an 8-bit micro-computer which calculates the center position of the light pattern of "hot zone" and displays it as a cross-mark on a color CRT. Aided by this mark, the operator can accurately adjust the light direction merely by positioning the mark on the CRT screen within a certain area. With this system, aiming operation of the headlamp has been made easier and its accuracy has been greatly improved.

• Supplemental Notes:
  • ISATA 84, "In Pursuit of Technical Excellence". Proceedings Volume 2. International Symposium on Automotive Technology and Automation with particular reference to Vehicle Management Systems and Flexible Manufacturing Systems, Milan, Italy 24-28 September 1984.
• Corporate Authors:

  Automotive Automotion Limited

  42 Lloyd Park Avenue
  Croydon CRO 5SB, Surrey,   England 

  Alfa Romeo Auto SpA

  Milan,   Italy 
• Authors:
  • Ishikawa, S
  • Kouzawa, K
  • Yoshida, M
  • Otani, S
• Publication Date: 1984

Media Info

• Features: Figures; Photos; Tables;
• Pagination: 17 p.

Subject/Index Terms

• TRT Terms: Accuracy; Development; Headlamps; Machine vision; Microcomputers; Research
• Uncontrolled Terms: Research and development
• Old TRIS Terms: Aiming /headlights/
• Subject Areas: Research; Safety and Human Factors;

Filing Info

• Accession Number: 00399971
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: ISATA 84097, HS-038 511
• Files: HSL, USDOT
• Created Date: Nov 30 1985 12:00AM