NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Concealment and Obstacle Detection for Autonomous Driving
Published
Author(s)
Tommy Chang, Tsai Hong Hong, Steven Legowik, Marilyn N. Abrams
Abstract
Obstacle detection and mapping are essential for unmanned autonomous driving. This paper describes both the sensors and the supporting software used in our system for driving autonomously on cross-country roads. The Ladar Range Imaging Camera (EBK) is used for monitoring the environment. We describe an algorithm developed at the National Institute of Standards and Technology (NIST) for detecting obstacles and regions of concealment, and evaluate its ability to detect positive (e.g., rocks) and negative (e.g., ditches) obstacles and concealment regions. We discuss the mapping system used for representing general obstacles (positive, negative, and concealment.) In addition to using information provided by the EBK sensor, the mapping algorithm also uses information supplied by a Global Positioning System (GPS) and an Inertial Navigation System (INS). This system has been tested at NIST and has successfully detected obstacles and regions of concealment while driving cross country at speeds of 35 km/h.
Proceedings Title
Submitted to the International Association of Science & Technology for Development - Robotics & Applications99 Conference
Conference Dates
October 28-30, 1999
Conference Location
Santa Barbara, CA
Conference Title
Science & Technology for Development - Robotics & Applications99 Conference
Chang, T.
, , T.
, Legowik, S.
and Abrams, M.
(1999),
Concealment and Obstacle Detection for Autonomous Driving, Submitted to the International Association of Science & Technology for Development - Robotics & Applications99 Conference, Santa Barbara, CA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=820638
(Accessed October 11, 2025)