| 发明名称 | Optical navigation method and device using same | ||
| 摘要 | The invention provides an optical navigation method, which includes: sequentially obtaining plural images including a first image, a second image, and a third image; choosing a main reference block in the first image; comparing the main reference block and the second image by block matching comparison to determine a first motion vector; resizing the main reference block according to the first motion vector to generate an ancillary reference block having a size smaller than the main reference block; and comparing the ancillary reference block and the third image by block matching comparison to determine a second motion vector. | ||
| 申请公布号 | US8958601(B2) | 申请公布日期 | 2015.02.17 |
| 申请号 | US201313847396 | 申请日期 | 2013.03.19 |
| 申请人 | Chip Goal Electronics Corporation | 发明人 | Lin Chun-Huang |
| 分类号 | G06K9/00;G06T7/20 | 主分类号 | G06K9/00 |
| 代理机构 | Tung & Associates | 代理人 | Tung & Associates |
| 主权项 | 1. An optical navigation method, comprising: sequentially obtaining plural images including a first, a second, and a third image; choosing a main reference block in the first image according to a predetermined sampling region and sampling size; comparing the main reference block and the second image by block matching comparison to determine a first motion vector; resizing the main reference block according to the first motion vector to generate an ancillary reference block having a size smaller than the main reference block; and comparing the ancillary reference block and the third image by block matching comparison to determine a second motion vector. | ||
| 地址 | HsinChu TW | ||