| 发明名称 |
IMAGE FEATURE EXTRACTION METHOD AND SYSTEM |
| 摘要 |
Disclosed is an image feature extraction method including a step of defining a combination of at least two kinds of solid angles along at least two directions, of an input spherical image; a step of determining respective values of the combination of the at least two kinds of solid angles, so that surface areas of spherical crowns of spherical segments, which are obtained by dividing the spherical image by the respective values of the combination of the at least two kinds solid angles, have a same value; and a step of generating, by utilizing the respective values of the combination of the at least two kinds of solid angles, an image feature template so as to conduct image feature extraction. |
| 申请公布号 |
US2016042244(A1) |
申请公布日期 |
2016.02.11 |
| 申请号 |
US201514814160 |
申请日期 |
2015.07.30 |
| 申请人 |
RICOH COMPANY, LTD. |
发明人 |
HE Na;WANG Gang;SHI Zhongchao;LIU Dianchao;LU Yaojie |
| 分类号 |
G06K9/46;G06T7/60;H04N5/232;G06T7/00 |
主分类号 |
G06K9/46 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An image feature extraction method, comprising:
a definition step of defining a combination of at least two kinds of solid angles along at least two directions, of an input spherical image; a determination step of determining respective values of the combination of the at least two kinds of solid angles, so that surface areas of spherical crowns of spherical segments, which are obtained by dividing the spherical image by the respective values of the combination of the at least two kinds solid angles, have a same value; and a generation step of generating, by utilizing the respective values of the combination of the at least two kinds of solid angles, an image feature template so as to conduct image feature extraction. |
| 地址 |
Tokyo JP |
