发明名称 Image device and method for removing noise
摘要 An image capturing apparatus capable of removing a noise due to a dark signal from a solid-state imaging device is provided. After storing an image signal (A2) obtained through an ordinary capturing in an image memory, an image signal (B2) captured immediately thereafter with a shutter closed is stored in the image memory. Next, respective image signals (A2) and (B2) are supplied to a preprocessing circuit (6a) via a memory controller (6c). An arithmetic circuit (61), by subtracting the image signal (B2) from the image signal (A2), removes a fixed pattern noise and an offset component. A bright spot detection circuit (62) detects an occurrence position of a bright spot noise from the image signal (B2), and in response to this detection, outputs a timing pulse (T1). A black point compensation circuit (63), on the basis of the timing pulse (T1), detects a pixel having a possibility of occurrence of a black point noise, in an image signal (C1) outputted from the arithmetic circuit (61), and compensates for this pixel using a data of a pixel in the vicinity thereof.
申请公布号 US7479993(B2) 申请公布日期 2009.01.20
申请号 US20030432134 申请日期 2003.11.03
申请人 SONY CORPORATION 发明人 NAKAJIMA KEN;SATO NOBUYUKI
分类号 H01L27/14;G06T5/00;G06T7/00;G06T7/60;H04N5/335;H04N5/361;H04N5/365;H04N5/367;H04N5/369;H04N5/372;H04N5/374;H04N5/378 主分类号 H01L27/14
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