"Mtrack 2.0": An ultra-scale tracking algorithm for low-resolution overhead imagery

Carrano, C J

关键词: ALGORITHMS;    IMPLEMENTATION;    PERFORMANCE;   

DOI  :  10.2172/947747
RP-ID  :  LLNL-TR-410382
PID  :  OSTI ID: 947747
Others  :  TRN: US200906%%96

美国|英语

来源: SciTech Connect

【 摘 要 】

Overhead persistent surveillance systems are becoming more capable at acquiring wide-field image sequences for long time-spans. The need to exploit this data is becoming ever greater. The ability to track a single vehicle of interest or to track all the observable vehicles, which may number in the thousands, over large, cluttered regions while they persist in the imagery is very desirable. Typically, this imagery has many thousands of pixels on a side and is characterized by lower resolutions (e.g. {approx}0.5 meters/pixel to {approx}2.0 meters/pixel) and lower frame rates (e.g. {approx} sub-Hz to several Hz). We describe our ultra-scale capable implementation of a multiple-vehicle tracking algorithm for overhead persistent surveillance imagery. This work builds upon an earlier report, where now the algorithm has been modified for improved performance and has been substantially improved to handle much larger datasets in a much shorter time.