We have developed a fast and high-accuracy three-dimensional (3-D) imaging laser radar
that can achieve better than 1-mm range accuracy for half a million pixels in less than 1 s …

In this paper, we proposed an adjacent frame difference (AFD) method to reconstruct 3-
dimension (3D) images for range-gated flash imaging Lidars. In this novel method, the range …

We present a technique to overcome the depth resolution limitation for 3D active imaging.
Applying microsecond laser pulses and sensor gate width, a scene of several hundred …

TION luminescence, however, the research of persistent luminescence in the longer-
wavelength SWIR spectral region is lacking and no real SWIR persistent phosphors are …

Some advanced concepts for gated viewing are presented, including spectral diversity
illumination techniques, non-line-of-sight imaging, indirect scene illumination, and in …

Laser gated viewing is a prominent sensing technology for optical imaging in harsh
environments and can be applied for vision through fog, smoke, and other degraded …

Recent development of active imaging system technology in the defense and security
community have driven the need for a theoretical understanding of its operation and …

Resolution and sensitivity must be considered in the design of an active imaging system.
System sensitivity is characterized by the signal-to-noise or contrast-to-noise ratio and is …

In this article, we want to give a review on the application of laser gated viewing for the
improvement of vision cross-diffusing obstacles (smoke, turbid medium,…), the capturing of …

We investigated signatures of small unmanned aerial vehicles (UAV) with different sensor
technologies ranging from acoustical antennas, passive and active optical imaging devices …