Share Email Print

Optical Engineering

Detecting small, low-contrast moving targets in infrared video produced by inconsistent sensor with bad pixels
Author(s): Dmitriy Korchev; Hyukseong Kwon; Yuri Owechko
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper addresses the problem of finding small and low-contrast moving targets in infrared (IR) video sequences produced by sensors with inconsistent parameters, such as intensity offset and gain as well as bad pixels. This sensor variability makes it difficult to apply methods based on frame registration using simple pixel differences. Our proposed algorithm uses regression to normalize the variations of intensity offset and gain between compared registered frames. A statistical criterion is used to calculate the threshold for the difference between normalized intensities of two frames. The algorithm for finding the differences between frames is also used to create a bad pixel mask either on- or offline. This mask is essential for the reduction of false detection rates. Our experiments show that this approach produces good results and can be used for detection of small, low-contrast targets in high dynamic range IR data. The proposed algorithm also produces good results for detecting moving targets in cases when objects are occluded by sparse vegetation.

Paper Details

Date Published: 3 November 2015
PDF: 5 pages
Opt. Eng. 54(11) 113102 doi: 10.1117/1.OE.54.11.113102
Published in: Optical Engineering Volume 54, Issue 11
Show Author Affiliations
Dmitriy Korchev, HRL Labs., LLC (United States)
Hyukseong Kwon, HRL Labs., LLC (United States)
Yuri Owechko, HRL Labs., LLC (United States)

© SPIE. Terms of Use
Back to Top