发明名称 |
Change discrimination device, change discrimination method and change discrimination program |
摘要 |
A change discrimination device capable of discriminating an alteration of a photographing target only from an aerial photograph or irrespectively of a difference in lighting conditions or photographing conditions at the time of taking a photo, and at minute distance intervals on a pixel basis, which receives input of a plurality of aerial image data at a new time point and an old time point, generates three-dimensional data (DSM) by subjecting the applied aerial image data to stereo-matching processing, generates ortho-image data and ortho-DSM data by normalizing the aerial image data and the generated DSM data, compares colors by using the generated ortho-image of the new time point and ortho-image of the old time point and compares heights by using the generated ortho-DSM data of the new time point and ortho-DSM data of the old time point to discriminate an alteration of a feature on the earth. |
申请公布号 |
US8218853(B2) |
申请公布日期 |
2012.07.10 |
申请号 |
US20060493894 |
申请日期 |
2006.07.27 |
申请人 |
KOIZUMI HIROKAZU;KUNIEDA KAZUO;HASHIZUME KAZUAKI;NEC SYSTEM TECHNOLOGIES, LTD. |
发明人 |
KOIZUMI HIROKAZU;KUNIEDA KAZUO;HASHIZUME KAZUAKI |
分类号 |
G06K9/00;G06K9/32;G06K9/66 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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