发明名称 |
IMAGE PROCESSING METHOD, IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS AND DISPLAY APPARATUS SUITABLE FOR THE APPLICATION OF IMAGE PROCESSING METHOD |
摘要 |
A lattice dividing unit determines lattice lines to divide parameters of all points of a picture at every division and supplies distortion correction parameters (distortion correction coordinates) on the lattice points to a distortion correction memory (not shown). A polynomial of degree n coefficient deriving unit expresses all distortion correction coordinates on each lattice line in the form of a function relative to positions on lattice lines and approximates the distortion correction coordinates by desired division polynomial of degree n. Further, a sample point deriving unit compresses distortion correction parameters based upon the division polynomial of degree n obtained from the polynomial of degree n coefficient deriving unit. In the derived division polynomial of degree n, internal points which result from dividing both ends of the division polynomial of degree n by n is supplied to the distortion correction memory as new distortion correction parameters (approximated distortion correction coordinates). Thus, a memory capacity of a required memory can be reduced in the image processing for correcting distortion of an image.
|
申请公布号 |
US2008062288(A1) |
申请公布日期 |
2008.03.13 |
申请号 |
US20070929575 |
申请日期 |
2007.10.30 |
申请人 |
|
发明人 |
NOSE ATSUSHI;AOYAMA KOJI;KURATA TOHRU;WADA KIMITAKA |
分类号 |
H04N5/217;G06T3/00;H04N1/387;H04N1/40;H04N5/228 |
主分类号 |
H04N5/217 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|