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The Lens Aberration Correction Method for Laser Precision Machining in Machine Vision System

머신비전 시스템에서 레이저 정밀 가공을 위한 렌즈 수차 보정 방법

  • 박양재 (가천대학교 IT대학 컴퓨터공학과)
  • Received : 2012.10.18
  • Accepted : 2012.11.15
  • Published : 2012.11.30

Abstract

We propose a method for accurate image acquisition in a machine vision system in the present study. The most important feature is required by the various lenses to implement real and of the same high quality image-forming optical role. The input of the machine vision system, however, is generated due to the aberration of the lens distortion. Transformation defines the relationship between the real-world coordinate system and the image coordinate system to solve these problems, a mapping function that matrix operations by calculating the distance between two coordinates to specify the exact location. Tolerance Focus Lens caused by the lens aberration correction processing to Galvanometer laser precision machining operations can be improved. Aberration of the aspheric lens has a two-dimensional shape of the curve, but the existing lens correction to linear time-consuming calibration methods by examining a large number of points the problem. How to apply the Bilinear interpolation is proposed in order to reduce the machining error that occurs due to the aberration of the lens processing equipment.

Keywords

Machine Vision System;Lens aberration Correction;Image Processing

Acknowledgement

Supported by : 가천대학교