TOP > 外国特許検索 > DTM ESTIMATION METHOD, DTM ESTIMATION PROGRAM, DTM ESTIMATION DEVICE, AND METHOD FOR CREATING 3-DIMENSIONAL BUILDING MODEL, AS WELL AS REGION EXTRACTION METHOD, REGION EXTRACTION PROGRAM, AND REGION EXTRACTION DEVICE

DTM ESTIMATION METHOD, DTM ESTIMATION PROGRAM, DTM ESTIMATION DEVICE, AND METHOD FOR CREATING 3-DIMENSIONAL BUILDING MODEL, AS WELL AS REGION EXTRACTION METHOD, REGION EXTRACTION PROGRAM, AND REGION EXTRACTION DEVICE

外国特許コード F120007089
整理番号 S2011-0783-N0
掲載日 2012年12月27日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP061204
国際公開番号 WO 2012/169294
国際出願日 平成24年4月26日(2012.4.26)
国際公開日 平成24年12月13日(2012.12.13)
優先権データ
  • 特願2011-129316 (2011.6.9) JP
  • 特願2011-144266 (2011.6.29) JP
発明の名称 (英語) DTM ESTIMATION METHOD, DTM ESTIMATION PROGRAM, DTM ESTIMATION DEVICE, AND METHOD FOR CREATING 3-DIMENSIONAL BUILDING MODEL, AS WELL AS REGION EXTRACTION METHOD, REGION EXTRACTION PROGRAM, AND REGION EXTRACTION DEVICE
発明の概要(英語)

In relation to DTM estimation, pixels in which no data is present within a unit grid in a predetermined range are linked and a river region is extracted

a first maximum allowable slope value (e.g., 3 degrees) is set and a provisional DTM is estimated for data excluding the river region

a localized slope is calculated from the estimated DTM

and when the slope exceeds a predetermined value, a second maximum allowable slope value (e.g., 4.5 degrees) greater than the first maximum allowable slope value is set, and the DTM is estimated again. In relation to region extraction, when a building region is extracted on the basis of data such as an aerial photograph, a plurality of different discretization widths are set

and for each discretization width, the brightness values of the data are discretized into a plurality of values that have been discretely set using the discretization width. Also, in a discretized image obtained by discretization, pixels having identical values are linked, and a region having a shape similar to that of a rectangle is extracted as a candidate building region. Then, from among a plurality of region groups extracted for each different discretization width, a region having a shape that is most similar to that of a rectangle is used as the building region.

  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • KYOTO UNIVERSITY,
  • SUSAKI, JUNICHI
  • 発明者(英語)
  • SUSAKI, JUNICHI
国際特許分類(IPC)
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