公开(公告)号：US20090185716A1

公开(公告)日：2009-07-23

申请号：US12356609

申请日：2009-01-21

申请人： Tetsuaki KATO ,  Naoto KAWANAMI ,  Satoru HORITA

发明人： Tetsuaki KATO ,  Naoto KAWANAMI ,  Satoru HORITA

IPC分类号： G06T7/00

CPC分类号： H04N5/367 ,  G06T7/80 ,  G06T2207/10004 ,  H04N5/217 ,  H04N5/2171

摘要： A dust detection system, comprising a receiver, a dust extraction block, a memory and an image correction block, is provided. The receiver receives an image signal. The dust extraction block generates a dust image signal on the basis of the image signal. The memory stores an intrinsic-flaw image signal corresponding to an intrinsic-flaw image including sub-images of dust that the dust extraction block extracts in initializing. The image correction block generates a corrected dust-image signal on the basis of the intrinsic-flaw image signal and a normal dust-image signal. The normal dust-image signal corresponds to a normal dust image including sub-image of dust that the dust extraction block extracts after initializing. The corrected dust image is the normal dust image that sub-images of dust in the intrinsic-flaw image are deleted from.

摘要翻译： 提供了一种包括接收器，除尘块，存储器和图像校正块的灰尘检测系统。 接收器接收图像信号。 除尘块根据图像信号产生灰尘图像信号。 存储器存储对应于包括灰尘提取块在初始化中提取的灰尘的子图像的固有缺陷图像的固有缺陷图像信号。 图像校正块基于本征缺陷图像信号和正常灰尘图像信号产生校正的灰尘图像信号。 正常灰尘图像信号对应于包括在初始化之后灰尘提取块提取的灰尘副图像的正常灰尘图像。 校正的灰尘图像是从本体缺陷图像中除去灰尘的子图像的正常灰尘图像。