유비쿼터스 센서 네트워크를 위한 영상 변화 탐지 알고리즘 구현

Implementation of an Image Change Detection Algorithm for Ubiquitous Sensor Networks

  • 김선철 (단국대학 전자전기공학과) ;
  • 어진우 (단국대학 전자전기공학과)
  • 발행 : 2009.05.07

초록

We propose an image change detection algorithm implemented on sensor nodes of the ubiquitous sensor network(USN). The proposed algorithm was designed for the robust detection of image changes regardless of the continuously changing ambient illumination environment. Morphological lowpass filter was used for estimating the illumination component in order to reduce computational burden instead of the existing Gaussian lowpass filter. The decision of the change detection is based on the result of threshold of difference image between two consecutive images. We also propose a new thresholding method using precalculated histogram information. The proposed algorithm was implemented on the MSP430 16bit microprocessor.

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