Multi-dimensional histogram method using multi-spectral images

Koichi Kawano, Jun-Ichi Kudoh

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

In this paper, we present a multi-dimensional histogram method for classifying multi-spectral image pixels into a particular category. The proposed method consists of the following four steps: create a multi-dimensional histogram as the database of a particular category by collecting category-information which is given by researchers, classify unknown image pixels by comparing them with the database, modify the result of the classified pixels, and merge the modified information into the database and continue to the second step. Thus, the database has been updated and upgraded considerably. Therefore, we can automatically classify unknown image pixels into the category as the researchers can manually do. Since researchers use not only spectral information but also geometrical information for classifying image pixels, a pixel sometimes exists in some categories at the same time. It makes the accuracy of the result lower and exists among boundaries of the categories. The proposed method can almost prevent the pixel from decreasing the accuracy by making a pixel exist in only one category. We applied the proposed method to classify 92 images of NOAA AVHRR into the sea category. It succeeded to achieve the classification accuracy of 94% on average.

Original languageEnglish
Pages2528-2529
Number of pages2
Publication statusPublished - 2004 Dec 1
Event2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 - Anchorage, AK, United States
Duration: 2004 Sep 202004 Sep 24

Other

Other2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004
CountryUnited States
CityAnchorage, AK
Period04/9/2004/9/24

Keywords

  • AVHRR
  • Component
  • Multi-dimensional histogram

ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

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