3. Active imaging principles
The main advantage of a lidar imager over a conventional optical system is its ability to increase range by separating stray light backscattered by the medium from that reflected by the target. To achieve this, it is necessary to be able to mark the light coming from the emitter so as to obtain a discrimination criterion for the backscattered light. Three obvious types of marking can be envisaged, leading to the three classical principles of imaging in diffusing or reverberant (volume) media.
Angular and spatial marking: this requires the use of very fine, directional angular reception and transmission fields, and joint scanning of the transmitter and receiver.
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
Active imaging principles
Estimating performance
Article included in this offer
"Optics and photonics"
(
204 articles
)
Updated and enriched with articles validated by our scientific committees
A set of exclusive tools to complement the resources
References
Exclusive to subscribers. 97% yet to be discovered!
Already subscribed? Log in!
