Experimental results (IMAGE)
Caption
The researchers used their new lidar system for simultaneous ranging, velocimetry and polarimetric sensing of an experimental scene (a) containing a moving model
vehicle, a speed-limit sign, an artificial plant and a real plant, mimicking a simplified
roadside environment with both static and dynamic objects. The reconstructed depth
map (b) localizes the spatial layout of the vehicle, sign and surrounding vegetation.
The reconstructed intensity map (c) doesn’t resolve the sign lettering because the
sign has nearly uniform albedo at the modem wavelength of 1550 nm. The polarization map (d) reveals material-sensitive details not resolved by depth or intensity, including the sign text and the difference between artificial and real vegetation. The reconstructed Doppler velocity map (f) identifies the moving vehicle and separates it from the static background.
Credit
Dongyu Du, University of Toronto
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License
Original content