Open AccessHigh-resolution dynamic imaging system based on a 2D optical phased array
Author(s) -
Zihao Wang,
Yanjun Sun,
Jiali Liao,
Chen Wang,
Rui Cao,
Jin Li,
Changqing Cao
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.439285
Subject(s) - optics , phased array , computer science , computer vision , trajectory , image resolution , tracking (education) , field of view , artificial intelligence , physics , telecommunications , psychology , pedagogy , astronomy , antenna (radio)
We propose an imaging system with scanning feedback of an optical phased array (OPA) for moving targets with unknown speed. The system combines OPA scanning velocimetry capability with OPA-based ghost imaging to enable trajectory tracking of targets moving within the field-of-view of the system while accomplishing image reconstruction. The proposed system can perform image reconstruction for millimeter-scale moving targets placed up to 20 m away from the camera. The system can be applied in areas such as autonomous driving and high-resolution imaging.