公开(公告)号：US20110222738A1

公开(公告)日：2011-09-15

申请号：US13129245

申请日：2009-11-13

申请人： Atsushi Rikimaru ,  Kazuyoshi Takahashi ,  Hideki Shimamura

发明人： Atsushi Rikimaru ,  Kazuyoshi Takahashi ,  Hideki Shimamura

IPC分类号： G06K9/00

CPC分类号： A01G7/00 ,  G01S7/024 ,  G01S7/412 ,  G01S13/90 ,  G06T7/0016 ,  G06T2207/10044 ,  G06T2207/30188

摘要： It is aimed to enable analyzing vegetation growth conditions at multiple times of a year accurately using radar images obtainable from a flying body such as artificial satellites, etc. A plurality of radar images of a ground surface of a same target area, which have been taken at multiple times of a year by a radar device mounted on a flying body, are acquired. The acquired plurality of radar images is stored in a map database. While using as a criterion image a radar image of the plurality of radar images stored in the map database, taken at a predetermined time in the multiple times of a year, other radar images than the criterion image of the plurality of radar images, taken at other times than the predetermined time in the multiple times of a year, are aligned with the criterion image, respectively. Then, backscatter coefficients of specified areas in the plurality of radar images are extracted. Based on a backscatter coefficient of a specified area in the criterion image of the plurality of radar images stored in the map database, backscatter coefficients of other radar images than the criterion image of the plurality of radar images are calibrated. And, based on a correlation between backscatter coefficients of radar images and growth values of vegetation shown in the radar images, growth values of vegetation shown in other radar images than the criterion image of the plurality of radar images, whose backscatter coefficients have been calibrated in the calibrating step, are calculated using the calibrated backscatter coefficients.

摘要翻译： 旨在通过使用诸如人造卫星等飞行体的雷达图像精确地分析一年多次的植被生长状况。已经采取了相同目标区域的地面的多个雷达图像 通过安装在飞行体上的雷达装置在一年的多次中获得。 获取的多个雷达图像被存储在地图数据库中。 在作为标准图像使用存储在地图数据库中的多个雷达图像的雷达图像中，在一年的多次中以预定时间拍摄的雷达图像比在多个雷达图像的标准图像中拍摄的雷达图像在 在一年中的多次中的预定时间的其他时间分别与标准图像对准。 然后，提取多个雷达图像中的指定区域的后向散射系数。 基于存储在地图数据库中的多个雷达图像的标准图像中的指定区域的后向散射系数，校准与多个雷达图像的标准图像相比的其他雷达图像的后向散射系数。 并且，基于雷达图像的反向散射系数与雷达图像显示植被生长值的相关性，其他雷达图像中植被的生长值与多个雷达图像的标准图像相比，其反向散射系数已经被校准 校准步骤使用校准后向散射系数进行计算。

公开(公告)号：US08478003B2

公开(公告)日：2013-07-02

申请号：US13129245

申请日：2009-11-13

申请人： Atsushi Rikimaru ,  Kazuyoshi Takahashi ,  Hideki Shimamura

发明人： Atsushi Rikimaru ,  Kazuyoshi Takahashi ,  Hideki Shimamura

IPC分类号： G06K9/00

CPC分类号： A01G7/00 ,  G01S7/024 ,  G01S7/412 ,  G01S13/90 ,  G06T7/0016 ,  G06T2207/10044 ,  G06T2207/30188

摘要： Vegetation growth condition analyzer, method and record medium using plural radar imaees of a ground surface of a same target area, which have been laken at multiple times during the year obtained from a flying body, e.g. an artificial satellite are disclosed. These images are stored in a map database and aligned wjth a criterion image. Extracting a backscatter coefficient of a specified target area in the criterion image from the map database and calibrating the backscatter coefficients of other radar images are entailed. Finally, calculating growth values of vegetation shown in the radar images by use of the calibrated backscatter coefficients are obtained.

摘要翻译： 植被生长条件分析仪，方法和记录介质，其使用从飞行体获得的一年中多次捕获的相同目标区域的地面的多个雷达图像，例如， 公开了人造卫星。 这些图像存储在地图数据库中，并与标准图像对齐。 从地图数据库提取标准图像中的指定目标区域的反向散射系数，并校准其他雷达图像的反向散射系数。 最后，通过使用校准的反向散射系数计算雷达图像中显示的植被生长值。