Method and device for the exposure-dependent noise correction in image sensors which can be addressed in lines and columns

作者: Ivo Koren , Heribert Geib , Ulrich Ramacher

DOI:

关键词:

摘要: The invention relates to a method and device in which image signals of an sensor that can be addressed lines columns are converted into digital values, offset voltage correction is carried out by summer, amplification multiplier, exposure-dependent dark current another summer. coefficients according the line number, column number integration time are, among other things, determined linear approximations. As result, so-called fixed pattern noise efficiently suppressed with relatively low effort, especially CMOS sensors.

参考文章(7)
J. Allen Cox, Edwin C. Thiede, Charles R. Seashore, Focal plane array seeker for projectiles ,(1991)
Uwe Apel, Armin Armbruster, Hans-Jörg Schönherr, Udo Postel, Ulrich Seger, Heinz-Gerd Graf, Method and circuit configuration for compensating variations in the cmos image sensors resulting from temperature, voltage and production ,(1997)
David M Masarik, Robert S Hayes, Robert W Klatt, Frank N Cheung, Analog signal processing circuit for infrared camera. ,(1995)