Detection of change of intensity corresponding to arbitrary spatial frequency using ${\nabla}^2G$ operator

${\nabla}^2G$ 연산자를 사용한 임의의 공간주파수의 밝기변화 추출

  • Lee, Woo-Hyung (Dept. of Electronics Eng. Pusan National University) ;
  • Kwon, Youl (Dept. of Electronics Eng. Pusan National University) ;
  • Kim, Jae-Chang (Dept. of Electronics Eng. Pusan National University) ;
  • Park, Ui-Yul (Dept. of Electronics Eng. Pusan National University)
  • 이우형 (부산대학교 전자공학과) ;
  • 권율 (부산대학교 전자공학과) ;
  • 김재창 (부산대학교 전자공학과) ;
  • 박의열 (부산대학교 전자공학과)
  • Published : 1987.07.03

Abstract

Laplacian of Gaussian, ${\nabla}^2G$ operator proposed by Marr and Hildreth is known as a rough bandpass filter. This paper shows how to detect the change of intensity corresponding to an arbitrary spatial frequency in an image using ${\nabla}^2G$ operator.

Keywords