The two approaches presented in this paper consist of splitting the tracking action into two sub-systems. The decoupling of local scanning and global scanning functions is an alternative solution to the use of fast-steering, powerconsuming galvanometric scanner. Applications targeted are multi-object tracking and 3D perception in safe condition. This paper presents more specifically an approach based on a Risley prism configuration steering a laser pattern dynamically shaped by a DMD* allowing a good compromise for the refresh rate and the precision.
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