发明名称 |
METHOD FOR DETECTING AND RECOGNIZING BOATS |
摘要 |
Method for recognizing boats in a port includes: establishing land/water boundaries from an image of the port including one or more boats, using a land mask and image statistics, without requiring a site model; utilizing the established land/water boundaries to determine thresholds and normalization parameters; detecting one or more bow candidates for the boats in the image; computing an orientation of each of the boats with detected bows; computing features along the bow candidates to eliminate false bow candidates; fitting boat models to the detected one or more bow candidates; determining one or more best fit models from the fitted boat models; calculating features in an interior, exterior and outline of the best fit models; applying a statistical classifier to score each of the one or more best fit models and to eliminate false alarms; and eliminating lower scoring best fit models. |
申请公布号 |
US2015213059(A1) |
申请公布日期 |
2015.07.30 |
申请号 |
US201414167658 |
申请日期 |
2014.01.29 |
申请人 |
RAYTHEON COMPANY |
发明人 |
Ely Richard W. |
分类号 |
G06F17/30;G06K9/66;G06K9/46;G06K9/62 |
主分类号 |
G06F17/30 |
代理机构 |
|
代理人 |
|
主权项 |
1. A computer implemented method for recognizing boats in a port, each boat having a bow, the method comprising:
establishing land/water boundaries from an image of the port including one or more boats, using a land mask and image statistics, without requiring a site model; utilizing the established land/water boundaries to determine thresholds and normalization parameters; detecting one or more bow candidates for the boats in the image; computing an orientation of each of the boats with detected bows; computing features along the bow candidates to eliminate false bow candidates; fitting boat models to the detected one or more bow candidates; determining one or more best fit models from the fitted boat models; calculating features in an interior, exterior and outline of the best fit models; applying a statistical classifier to score each of the one or more best fit models and to eliminate false alarms; and eliminating lower scoring best fit models whose outline overlaps an outline of a higher scoring boat to obtain a more accurate result, wherein the method is performed by one or more computers. |
地址 |
Waltham MA US |