| 发明名称 |
Fast subspace projection of descriptor patches for image recognition |
| 摘要 |
A method for generating a feature descriptor is provided. A set of pre-generated sparse projection vectors is obtained. A scale space for an image is also obtained, where the scale space having a plurality scale levels. A descriptor for a keypoint in the scale space is then generated based on a combination of the sparse projection vectors and sparsely sampled pixel information for a plurality of pixels across the plurality of scale levels. |
| 申请公布号 |
US8897572(B2) |
申请公布日期 |
2014.11.25 |
| 申请号 |
US201012959347 |
申请日期 |
2010.12.02 |
| 申请人 |
QUALCOMM Incorporated |
发明人 |
Hamsici Onur C.;Reznik Yuriy;Hong John;Vaddadi Sundeep;Lee Chong U. |
| 分类号 |
G06K9/46 |
主分类号 |
G06K9/46 |
| 代理机构 |
|
代理人 |
Hidalgo Espartaco Diaz |
| 主权项 |
1. A method for generating a feature descriptor, comprising:
obtaining a set of pre-generated sparse projection vectors over a first plurality of scale levels; obtaining a scale space for an image, the scale space having a second plurality scale levels; and generating a descriptor for a keypoint in the scale space based on a combination of the sparse projection vectors and sparsely sampled pixel information for a plurality of pixels across the second plurality of scale levels. |
| 地址 |
San Diego CA US |
