公开(公告)号：US20070053025A1

公开(公告)日：2007-03-08

申请号：US11347381

申请日：2006-02-06

Applicant: Chun-Hsien Chou ,  Jen-Chieh Lin ,  Shu-Min Liau ,  Tsung-Hao Lee

Inventor： Chun-Hsien Chou ,  Jen-Chieh Lin ,  Shu-Min Liau ,  Tsung-Hao Lee

IPC: G06K15/02

CPC classification number: G06T3/4007

Abstract: The present invention relates to an interpolation method for enlarging an image, wherein the image is composed of plural scanning lines. Firstly, it selects four adjacent continuous pixels xk−1, xk, xk+1, and xk+2 which have the pixel values f(xk−1), f(xk), f(xk+1), and f(xk+2) respectively on each of the scanning lines; next, it determines three linear equations Lk−1, Lk, and Lk+1 according to every two adjacent pixel values f(xk−1) and f(xk), f(xk) and f(xk+1), and f(xk+1) and f(xk+2), respectively; then, it selects a pixel x to be interpolated between the pixel xk and the pixel xk+1; finally, it applies the pixel x to the three linear equations Lk−1, Lk, and Lk+1 to determine three candidate pixel values which are weighted and combined to obtain pixel value f(x) of the pixel x.

Abstract translation: 本发明涉及一种用于放大图像的内插方法，其中图像由多条扫描线组成。 首先，它选择四个相邻的连续像素x k-1，x k，x k + 1，x k + 2 具有像素值f（x，k-1），f（x k k），f（x k + 1） ）和f（x＆gt; k + 2＆gt;）; 接下来，根据每两个相邻像素值f（...），它确定三个线性方程式L k-1，L k和L k + 1， f（x，k），f（x，k）和f（x k + 1） SUB>）和f（xK + 1）和f（xK + 2）; 那么它选择要在像素x SUB和像素x k + 1之间进行内插的像素x; 最后，将像素x应用于三个线性方程L k-1，L k和L k + 1，以确定三个候选 像素值被加权和组合以获得像素x的像素值f（x）。