Imaging algorithm of a hand-held GPR MD sensor (ALIS)

Xuan Feng, Jun Fujiwara, Zheng Shu Zhou, Takao Kobayashi, Motoyuki Sato

Research output: Contribution to journalConference articlepeer-review

35 Citations (Scopus)


We are developing a new landmine detection system, called advanced landmine imaging system (ALIS), which is equipped with metal detector (MD) and ground penetrating radar (GPR). Although this is a hand-held system, we can record the MD and GPR signal with the sensor position information acquired by CCD camera. Therefore, 2D MD image and 3D GPR image are possible after signal processing. But because ALIS is a hand-held system, the sensor position is random when it is operated in the field. So interpolation processing is used to deal with the problem and offer grid data set for both MD and GPR. Good MD image can be achieved after interpolation. Also, interpolation can prepare good data set for migration to get good horizontal slice image. After interpolation, 3D diffraction stacking migration with migration aperture is used to refocus the scattered signals and enhance the signal-clutter ratio for reconstructed good GPR image. The ALIS was tested in Afghanistan in December 2004 and could achieve good landmine image. Especially, GPR could obtain good image of anti-person (AP) mine buried at more than 20cm depth. Also MD image and GPR image could combine to distinguish mine from metal fragment.

Original languageEnglish
Article number124
Pages (from-to)1192-1198
Number of pages7
JournalProceedings of SPIE - The International Society for Optical Engineering
Issue numberPART II
Publication statusPublished - 2005
Externally publishedYes
EventDetection and Remediation Technologies for Mines and Minelike Targets X - Orlando, FL, United States
Duration: 2005 Mar 282005 Apr 1


  • GPR
  • Hand-held sensor
  • Landmine detection
  • Metal Detector
  • Visualization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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