| 发明名称 |
Perspective correction using a reflection |
| 摘要 |
Techniques and tools are described for performing perspective correction using a reflection. Reflective properties of a surface being photographed can be used to determine a rotation of the device taking the photograph relative to the surface. Light sourced or produced by the device can be used to create a reflection spot in the picture. A position of the reflection spot within the picture is calculated and used to determine the rotation. The rotation can be used for performing perspective correction on the picture, or on another picture taken by the device. |
| 申请公布号 |
US8774556(B2) |
申请公布日期 |
2014.07.08 |
| 申请号 |
US201113308177 |
申请日期 |
2011.11.30 |
| 申请人 |
Microsoft Corporation |
发明人 |
Sheikh Suhel;Brown Shawn M.;Cosman Stephen;Pengelly Robert |
| 分类号 |
G06K9/40 |
主分类号 |
G06K9/40 |
| 代理机构 |
|
代理人 |
Azure Tony;Sanders Andrew;Minhas Micky |
| 主权项 |
1. A method for performing perspective correction, comprising:
receiving image data corresponding to a picture captured by a picture-taking device, the picture having a reflection spot caused by reflection of light sourced by the picture-taking device off a surface; calculating a position of the reflection spot within the picture from the image data; and determining a rotation of the picture-taking device relative to the surface using the calculated position, the rotation being used for performing the perspective correction. |
| 地址 |
Redmond WA US |
