In the last two decades, fall detection (FD) systems have been developed as a popular assistive technology. To support long-term FD services, various power-saving strategies implemented. Among them, reduced sampling rate is common approach for an energy-efficient system in real world. However, performance of diminished owing to low-resolution (LR) accelerometer signals. improve accuracy with LR...

With the intensive research on ultrafast dynamics in physics and chemistry, single-shot measurement of ultrashort time change has become increasingly important. The most advanced oscilloscope with time-lens technique possesses subpicosecond resolution, while interferometer can probe event within one optical cycle. However, difference beyond cycle but less than time-lens’ resolution is still ina...