NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Optimization of a Multi-Stage ATR System for Small Target IdentificationAn Automated Target Recognition system (ATR) was developed to locate and target small object in images and videos. The data is preprocessed and sent to a grayscale optical correlator (GOC) filter to identify possible regionsof- interest (ROIs). Next, features are extracted from ROIs based on Principal Component Analysis (PCA) and sent to neural network (NN) to be classified. The features are analyzed by the NN classifier indicating if each ROI contains the desired target or not. The ATR system was found useful in identifying small boats in open sea. However, due to "noisy background," such as weather conditions, background buildings, or water wakes, some false targets are mis-classified. Feedforward backpropagation and Radial Basis neural networks are optimized for generalization of representative features to reduce false-alarm rate. The neural networks are compared for their performance in classification accuracy, classifying time, and training time.
Document ID
20150008576
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Lin, Tsung-Han
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lu, Thomas
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Braun, Henry
(Arizona State Univ. AZ, United States)
Edens, Western
(Purdue Univ. IN, United States)
Zhang, Yuhan
(California Inst. of Tech. Pasadena, CA, United States)
Chao, Tien- Hsin
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Assad, Christopher
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Huntsberger, Terrance
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
May 20, 2015
Publication Date
April 5, 2010
Subject Category
Optics
Meeting Information
Meeting: SPIE Defense, Security & Sensing
Location: Orlando, FL
Country: United States
Start Date: April 5, 2010
End Date: April 9, 2010
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Other
Keywords
false alarm rate
small target
correlation
neural network

Available Downloads

There are no available downloads for this record.
No Preview Available