公开(公告)号：US20080198240A1

公开(公告)日：2008-08-21

申请号：US12029055

申请日：2008-02-11

Applicant: Ed DUNCAN ,  Andrew Kinsey ,  David Grant

Inventor： Ed DUNCAN ,  Andrew Kinsey ,  David Grant

IPC: H04N9/73

CPC classification number: H04N9/735

Abstract: A vignetting-type chromatic error, particularly found in image sensors having pixel dimensions of a few microns, may be corrected by applying to each color channel a gain factor which increases with the radial position of the pixel. The gain factor may be also controlled based upon ambient color temperature

Abstract translation: 可以通过向每个颜色通道应用随着像素的径向位置而增加的增益因子来校正晕影型色差，特别是在像素尺寸为几微米的图像传感器中。 增益因子也可以基于环境色温来控制

公开(公告)号：US20070285535A1

公开(公告)日：2007-12-13

申请号：US11753737

申请日：2007-05-25

Applicant: Gary McGillvray ,  David Storrar ,  Ewen Brown ,  Ed Duncan

Inventor： Gary McGillvray ,  David Storrar ,  Ewen Brown ,  Ed Duncan

IPC: H04N9/64

CPC classification number: H04N5/367

Abstract: A digital filtering algorithm preprocesses couplet defects prior to their being operated on by a main filtering algorithm that focuses on singlet defects. The preprocessing involves the replacement of one of the defective pixel values in the couplet with a pixel value that is known to be non-defective. In preferred embodiments, the selection of the pixel value in the couplet to be replaced is customized depending on the direction of scanning of the pixel array, and can take into account edge effects of border pixels.

Abstract translation: 数字滤波算法在通过专注于单重缺陷的主要滤波算法进行操作之前，预处理对偶缺陷。 预处理涉及以已知为无缺陷的像素值替换对联中的缺陷像素值之一。 在优选实施例中，根据像素阵列的扫描方向来定制要替换的对联中的像素值的选择，并且可以考虑边界像素的边缘效应。