Real Time High-Sensitivity Imaging for Home Surveillance System by Using Combined Long/Short Exposure

In the future, a comprehensive home surveillance system could be constructed using a network of pre-existing cameras found in household products. To be incorporated into household products, the camera must be small. In addition, for surveillance cameras, resolution and sensitivity are important. There is a trade-off between these three requirements, small-size, high-resolution and high-sensitivity. In this study, we realize the real time camera system that satisfies all the three requirements for home surveillance system. This proposed camera system is 4K-format with four times higher sensitivity as compared to conventional imagers. And, the pixel pitch size of imager of this proposed system is 1.43um. Then we propose a speedup algorithm to achieve 24fps operation using 62 FPGAs.