基本信息:
- 专利标题： 图像插值方法、装置及插值系数的获取方法
- 专利标题（英）：Method and apparatus for image interpolation, method for acquiring interpolation coefficients
- 申请号：PCT/CN2008/073326 申请日：2008-12-03
- 公开(公告)号：WO2009074100A1 公开(公告)日：2009-06-18
- 发明人： 何芸 , 吴仲谋 , 郑萧桢 , 郑建铧
- 申请人： 华为技术有限公司 , 清华大学 , 何芸 , 吴仲谋 , 郑萧桢 , 郑建铧
- 申请人地址： 中国广东省深圳市龙岗区坂田华为基地总部办公楼, Guangdong 518129 CN
- 专利权人： 华为技术有限公司,清华大学,何芸,吴仲谋,郑萧桢,郑建铧
- 当前专利权人： 华为技术有限公司,清华大学,何芸,吴仲谋,郑萧桢,郑建铧
- 当前专利权人地址： 中国广东省深圳市龙岗区坂田华为基地总部办公楼, Guangdong 518129 CN
- 代理机构： 北京同立钧成知识产权代理有限公司
- 优先权： CN200710195919.0 20071204
- 主分类号： H04N7/26
- IPC分类号： H04N7/26 ; H04N7/32
摘要：
A method for image interpolation is provided, which includes the following steps: acquiring interpolation coefficients pre-calculated by acquiring the pixel values of integer pixel points and/or sub-pixel points in the rows, columns or any other directions where the pixel points locate, then executing the interpolation on the pixel points. A method for acquiring image interpolation coefficients is also provided, which acquires the interpolation coefficients needed in different directions by solving a one-dimensional Wienerhurf equation. An apparatus for image interpolation is also provided, which executes interpolation filtering on the pixelpoints by the first acquiring module, the second acquiring module and the first calculating module. With the method and apparatus for image interpolation and the method for acquiring interpolation coefficients above, the accuracy of interpolation filtering on the pixel points can be improved, and the accuracy for searching pixel points can be improved accordingly, so that more accurate matching block information in reference images can be acquired.