公开(公告)号：EP2973113A1

公开(公告)日：2016-01-20

申请号：EP14764067.6

申请日：2014-03-14

申请人： Digitalglobe, Inc.

发明人： LEONARD, Victor ,  PACIFICI, Fabio

IPC分类号： G06F19/00

CPC分类号： G06T5/50 ,  B64G1/1021 ,  G01C11/04 ,  G06K9/0063 ,  G06K9/4661 ,  G06T5/003 ,  G06T5/008 ,  G06T2207/10036 ,  G06T2207/30184 ,  G06T2207/30188

摘要： Techniques for making, using and updating a Modeled Atmospheric Correction Object (MACO) cluster and the MACO sites that are selected from within a given MACO cluster. The MACO construct is a novel application of a Model of Reality (MOR) that provides synthetic ground truth essential to converting imagery from top-of-the-atmosphere radiance to surface reflectance given a variety of spatial, spectral and radiance effects involving non-uniform distributions of opaque clouds, cirrus clouds, aerosols, water vapor, surface ice, surface snow, shadows and bidirectional reflectance distribution function (BRDF) effects.

公开(公告)号：EP2972221B1

公开(公告)日：2017-10-25

申请号：EP14807659.9

申请日：2014-03-07

申请人： Digitalglobe, Inc.

发明人： PACIFICI, Fabio

IPC分类号： G06T5/00 ,  G06T5/20

CPC分类号： G06T5/20 ,  G06T5/001 ,  G06T7/514 ,  G06T2207/10032 ,  G06T2207/10036 ,  G06T2207/10041 ,  G06T2207/30181

公开(公告)号：EP2973113B1

公开(公告)日：2019-06-26

申请号：EP14764067.6

申请日：2014-03-14

申请人： Digitalglobe, Inc.

发明人： LEONARD, Victor ,  PACIFICI, Fabio

IPC分类号： G16Z99/00 ,  G01C11/04 ,  G06T5/00 ,  G06T5/50 ,  G06K9/00 ,  G06K9/46 ,  B64G1/10

公开(公告)号：EP2972221A2

公开(公告)日：2016-01-20

申请号：EP14807659.9

申请日：2014-03-07

申请人： Digitalglobe, Inc.

发明人： PACIFICI, Fabio

IPC分类号： G01N21/17 ,  G01N21/25 ,  G01N33/18 ,  G01J5/10 ,  G06T7/00

CPC分类号： G06T5/20 ,  G06T5/001 ,  G06T7/514 ,  G06T2207/10032 ,  G06T2207/10036 ,  G06T2207/10041 ,  G06T2207/30181

摘要： Techniques for atmospheric compensation in satellite imagery that include converting an image including an array of radiance values to an array of surface reflectance values. The conversion is performed in an automated fashion by identifying one or more portions of the image for which the surface reflectance can be estimated and determining the Aerosol Optical Depth (AOD) by iteratively comparing the radiance value captured by the image sensor to a calculated radiance value (based on the known surface reflectance, historical values for other atmospheric parameters, and the AOD) and adjusting the AOD until the calculated radiance value is substantially the same as the captured radiance value.

摘要翻译： 用于卫星图像中大气补偿的技术包括将包括阵列的辐射值的图像转换为表面反射率值阵列。 通过识别可以估计表面反射率的图像的一个或多个部分，并且通过将图像传感器捕获的辐射值迭代地计算出的辐射值来确定气溶胶光学深度（AOD）来自动地进行转换 （基于已知的表面反射率，其他大气参数的历史值和AOD）并调整AOD，直到所计算的辐射值与捕获的辐射值基本相同。