Low-voltage silicon （Si）-based light-emitting diode （LED） is designed based on the former research of LED in Si-based standard complementary metal oxide semiconductor （CMOS） technology. The low-voltage LED is designed under the research of cross-finger structure LEDs and sophisticated structure enhanced LEDs for high efficiency and stable light source of monolithic chip integration. The device size of low-voltage LED is 45.85x38.4 （#m）, threshold voltage is 2.2 V in common condition, and temperature is 27 ~C. The external quantum efficiency is about 10-6 at stable operating state of 5 V and 177 mA.
Face-centered orthorhombic（FCO） sampling can be implemented more easily on CMOS image sensors than on other video acquisition devices.The sampling efficiency of FCO is the highest among all threedimensional（3D） sampling schemes.However,interpolation of FCO-sampled data is inevitable in bridging human perception and machine-vision algorithms.In this letter,the concept of motion compensation is borrowed from deinterlacing,which displays interlaced videos on progressively scanned devices.The combination of motion estimation based on intrafield interpolated frames and motion-compensated interfield interpolation is found to provide the best performance by evaluating different combinations of motion estimation and interpolation.
