Estimation of vehicle movement in urban areas from thermal video sequences


In this contribution we describe a method to assess the activity of vehicles based on airborne image sequences taken by an infrared camera. At the resolution of approximately one meter vehicles appear as elongated spots. Active vehicles often appear as a configuration of a dark and a bright spot close to each other, where the latter results from the warm motor hood. For the estimation of vehicle movement a precise measurement of the sensor movement is required. The sensor movement is inferred from image sequences. A robust estimation method avoids outliers in the set of point correspondences. A special selection strategy prefers samples that promise high estimation precision.
Michaelsen E, Stilla U (2003) Estimation of vehicle movement in urban areas from thermal video sequences. 2nd GRSS/ISPRS Joint Workshop on Remote Sensing and data fusion on urban areas, URBAN 2003. IEEE, 105-109 (ISBN 0-7803-7719-2)
[ Stilla.de/pub ]