| 发明名称 |
Scalable feature descriptor extraction and matching method and system |
| 摘要 |
A feature descriptor extracting method in a feature descriptor extracting apparatus is provided. The feature descriptor extracting method involves receiving an image from which a feature descriptor will be extracted, extracting a point at which a change in a pixel statistical value of the image is large as a feature point, and extracting a patch centered on the feature point, blocking the patch to calculate a statistical value of each of a plurality of patch blocks, calculating a morphological gradient by using a statistical value of the block-converted patch, and extracting a feature descriptor by using the morphological gradient in consideration of required feature descriptor complexity. |
| 申请公布号 |
US8805067(B2) |
申请公布日期 |
2014.08.12 |
| 申请号 |
US201213548098 |
申请日期 |
2012.07.12 |
| 申请人 |
Electronics and Telecommunications Research Institute |
发明人 |
Lee Keun-Dong;Na Sang Il;Oh Weon-Geun;Je Sung-Kwan;Jeong Hyuk |
| 分类号 |
G06K9/00 |
主分类号 |
G06K9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A feature descriptor extracting method in a feature descriptor extracting apparatus, the feature descriptor extracting method comprising:
receiving an image from which a feature descriptor will be extracted; extracting a point at which a change in a pixel statistical value of the image is large as a feature point, and extracting a patch centered on the feature point; block-converting the patch and calculating a statistical value of each of a plurality of patch blocks; calculating a morphological gradient by using a statistical value of the block-converted patch; and extracting a feature descriptor by using the morphological gradient in consideration of required feature descriptor complexity. |
| 地址 |
Daejeon KR |
