A Method for Developing Urban Extent Map of High Accuracy and Resolution by Integrating ASTER/VNIR Images and Existing Urban Extent Maps

DOI Web Site 1 Citations 64 References

Bibliographic Information

Other Title
  • ＡＳＴＥＲ／ＶＮＩＲ画像と既存都市域マップの複合的利用による高精度・高分解能都市域マッピング手法の開発
  • ASTER VNIR ガゾウ ト キソン トシイキ マップ ノ フクゴウテキ リヨウ ニ ヨル コウセイド コウ ブンカイノウ トシイキ マッピング シュホウ ノ カイハツ

Search this article

Abstract

We proposed a method to improve accuracy and spatial resolution of urban extent map by integration of ASTER/VNIR images and existing urban extent maps. The proposed method mainly consists of 1) unsupervised clustering on ASTER/VNIR images, 2) extracting urban clusters from clustered ASTER/VNIR images by overlaying existing urban extent maps, 3) calculating conditional probability under condition of urban or non-urban on the extracted urban clusters and existing urban extent maps against ground truth. We developed urban extent map with ASTER/VNIR images, MOD12Q1 and GRUMP by proposed method at 101 sites of the world. As the result, spatial resolution is improved to 15m, and user's accuracy and producer's accuracy of developed map is 56% and 62%, better than those of MOD12Q1 and GRUMP. The proposed method will be useful to improve accuracy and spatial resolution of urban extent map. In addition, the conditional probability indicates effect of the integration. Investigation based on the conditional probability will clarify way of improving accuracy and spatial resolution.

Journal

Citations (1)*help

See more

References(64)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top