发明名称 |
Optical navigation sensor device and image processing method using 2-dimensional sequential image process |
摘要 |
An optical navigation sensor device and an image processing method using a 2-dimensional sequential image process are disclosed. A pre-processor stores digital voltage values of respective pixels of an image received from a pre-processor in a memory, performs a pre-process for the digital voltage values of respective pixels sequentially received from the memory, thereby producing a pre-processed current image, and extracts a pre-processed current central image from the pre-processed current image. A motion coordinate calculator stores the pre-processed current central image as X/Y-axis reference image candidates, determines replacement of X/Y-axis reference images for calculation of motion coordinate values of a next pre-processed image in accordance with X/Y-axis motions of the pre-processed current image, and compares the pre-processed current image with the X/Y-axis reference images, thereby calculating X/Y-axis motion coordinate values of the pre-processed current image.
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申请公布号 |
US7170494(B2) |
申请公布日期 |
2007.01.30 |
申请号 |
US20030743872 |
申请日期 |
2003.12.24 |
申请人 |
SAMSUNG ELECTRO-MECHANICS CO., LTD |
发明人 |
PARK KEUN-WOO;CHOI WON-TAE;MIN KYOUNG-JOONG;HWANG BYOUNG-WON;KIM KANG-JU |
分类号 |
G01B11/00;G09G5/00;G06F3/00;G06F3/03;G06F3/033;G06F3/038;G06K9/38;G06K9/54;G06M7/00;H01L27/00;H01L27/146 |
主分类号 |
G01B11/00 |
代理机构 |
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