GENERATING COLUMN OFFSET CORRECTIONS FOR IMAGE SENSORS
摘要
<p>An image sensor includes multiple photoactive pixels and multiple dark reference pixels arranged in rows and columns to form a pixel array. A dark signal is read out of one or more dark reference pixels in each column and used to determine a column offset for one or more columns in the pixel array. Each time an image or frame of an image is read out, the column offset for the one or more columns is updated using dark signals read out from a given number of dark reference pixels. The column offset for the one or more columns is scaled when a gain level is changed for a captured image.</p>
申请公布号
WO2011081962(A1)
申请公布日期
2011.07.07
申请号
WO2010US60451
申请日期
2010.12.15
申请人
OMNIVISION TECHNOLOGIES, INC.;GERSTENBERGER, JEFFREY, S.;MRUTHYUNJAYA, RAVI