发明名称 |
METHOD AND APPARATUS FOR DETECTING PERSONS, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM |
摘要 |
A method and an apparatus for detecting persons are disclosed. The method includes initially detecting the persons in a height-top-view; dividing the height-top-view into one or more regions, and estimating crowd density in each region; determining, based on the crowd density, visible regions of the initially detected persons in each of the regions; for each of the initially detected persons, extracting a first gradient feature and a second gradient feature of the person from the height-top-view, and a grayscale image or a color image corresponding to the height-top-view, respectively; for each of the initially detected persons, determining, based on the extracted first gradient feature and second gradient feature, using a previously constructed classifier corresponding to the determined visible region of the person, a confidence level of the initially detected person; and correcting, based on the confidence level, a detection result of the initially detected persons. |
申请公布号 |
US2016335490(A1) |
申请公布日期 |
2016.11.17 |
申请号 |
US201615148391 |
申请日期 |
2016.05.06 |
申请人 |
WANG Xin;Fan Shengyin;Wang Qian;Zhu Jiadan |
发明人 |
WANG Xin;Fan Shengyin;Wang Qian;Zhu Jiadan |
分类号 |
G06K9/00;G06T7/00;G06T7/40;G06K9/62 |
主分类号 |
G06K9/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method for detecting persons, the method comprising:
initially detecting the persons in a height-top-view including the persons to be detected; dividing the height-top-view into one or more regions, and estimating crowd density in each of the regions; determining, based on the crowd density, visible regions of the initially detected persons in each of the regions; for each of the initially detected persons, extracting a first gradient feature of the person from the height-top-view, and a second gradient feature of the person from a grayscale image or a color image corresponding to the height-top-view, respectively; for each of the initially detected persons, determining, based on the extracted first gradient feature and second gradient feature, using a previously constructed classifier corresponding to the determined visible region of the person, a confidence level of the initially detected person; and correcting, based on the confidence level, a detection result of the initially detected persons. |
地址 |
Beijing CN |