TY  - RPRT
TI  - Vision-based obstacle detection for rotorcraft flight
AU  - Sridhar, Banavar
AU  - Suorsa, Ray
AU  - Smith, Phillip
AU  - Hussien, Bassam
PY  - 1992
UR  - https://ntrs.nasa.gov/citations/19920069841
ID  - 19920069841
ER  -