The signal plus background and background are stored on the different caps in the pixel...
...and then read out for further processing:
Aptina Applies for Patent on Structured Light Sensor with Background Subtraction
...
Aptina's patent applications US20120274744 and EP2519001 "Structured light imaging system" by Chung Chyn Wan, Xiangli Li and Gennadiy Agranov proposes background light extraction in stuctured light system with pulsed light source:
The signal plus background and background are stored on the different caps in the pixel...
...and then read out for further processing:
...
The signal plus background and background are stored on the different caps in the pixel...
...and then read out for further processing:
