Title :
Cross-talk explained
Author_Institution :
Dept. of Stat., Harvard Univ., Cambridge, MA
Abstract :
The image sensor measurements are subject to degradation caused by the photon and electron leakage. The color image data acquired via a spatial subsampling procedure implemented as a color filter array is especially vulnerable to the ambiguation between neighboring pixels that measure different portions of the visible spectrum. This so-called "cross-talk" phenomenon is expected to become more severe as the electronics industry\´s trend to shrink the device footprint continues because the pixel sensors are more densely packed together. We show that an analysis of the mechanism underlying the cross-talk problem is surprisingly straightforward. Our comprehensive analysis admits a simple and effective color correction scheme for a given choice of color filter array in a digital camera.
Keywords :
crosstalk; image colour analysis; image sensors; optical filters; color correction scheme; color filter array; color image data; cross-talk; digital camera; electron leakage; image sensor measurement; photon leakage; pixel sensor; spatial subsampling procedure; Degradation; Digital cameras; Digital filters; Electronics industry; Electrons; Image color analysis; Image sensors; Optoelectronic and photonic sensors; Pixel; Sensor phenomena and characterization; color correction; color image sensors; color measurement; cross-talk; spatio-spectral sampling;
Conference_Titel :
Image Processing, 2008. ICIP 2008. 15th IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-1765-0
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2008.4711845