Passive obstacle location for rotorcraft guidanceNap-of-the-earth flight mode is extremely demanding on the rotorcraft pilots. This fact has motivated the research in automating various components of low altitude rotorcraft flight operations. Concurrent with the development of guidance laws, efforts are under way to develop systems for locating the terrain and the obstacles using inputs from passive electrooptical sensors such as TV cameras and infrared imagers. A passive obstable location algorithm that uses image sequences from cameras undergoing translational and rotational motion is developed. The algorithm is in a general form and can operate in multicamera imaging environments. Performance results using an image sequence from an airborne camera are given.
Document ID
19910065023
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Menon, P. K. A. (NASA Ames Research Center Moffett Field, CA, United States)
Chatterji, G. B. (NASA Ames Research Center Moffett Field, CA, United States)
Sridhar, B. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1991
Subject Category
Aircraft Communications And Navigation
Report/Patent Number
AIAA PAPER 91-2638
Meeting Information
Meeting: AIAA Guidance, Navigation and Control Conference