| 发明名称 | Image correction device and image correction method | ||
| 摘要 | An image correction device includes a coordinate transformation unit, a parameter value determination unit, and a correction value calculation unit. The coordinate transformation unit receives first coordinates of at least one pixel data of an illuminated pattern under a first coordinate system, and transforms the first coordinates into second coordinates under a second coordinate system, wherein the second coordinate system is rotated relative to the first coordinate system by an angle with respect to an optical center of the illuminated pattern. The parameter value determination unit determines a respective value of at least one correction parameter according to the position of each of the at least one pixel data in the second coordinate system. The correction value calculation unit calculates an image correction value of each of the at least one pixel data according to the second coordinates and the respective value of the at least one correction parameter. | ||
| 申请公布号 | US8786737(B2) | 申请公布日期 | 2014.07.22 |
| 申请号 | US201113218453 | 申请日期 | 2011.08.26 |
| 申请人 | Novatek Microelectronics Corp. | 发明人 | Hsu Wei |
| 分类号 | H04N5/217;H04N9/64;G06K9/40;G06K9/32 | 主分类号 | H04N5/217 |
| 代理机构 | Jianq Chyun IP Office | 代理人 | Jianq Chyun IP Office |
| 主权项 | 1. An image correction device, comprising: a coordinate transformation unit, receiving first coordinates of at least one pixel data of an illuminated pattern under a first coordinate system, and transforming the first coordinates into second coordinates under a second coordinate system, wherein the second coordinate system is rotated relative to the first coordinate system by an angle with respect to an optical center of the illuminated pattern, wherein the angle is determined according to a shape of the illuminated pattern; a parameter value determination unit, determining a respective value of at least one correction parameter for each of the at least one pixel data according to a position of each of the at least one pixel data in the second coordinate system; and a correction value calculation unit, calculating an image correction value of each of the at least one pixel data according to the second coordinates of each of the at least one pixel data and the respective value of the at least one correction parameter. | ||
| 地址 | Hsinchu TW | ||