Target acquisition modeling over the exact optical path: Extending the EOSTAR TDA with the TOD sensor performance model
conference paper
The Electro-Optical Signal Transmission and Ranging (EOSTAR) model is an image-based Tactical Decision Aid (TDA) for thermal imaging systems (MWIR/LWIR) developed for a sea environment with an extensive atmosphere model. The Triangle Orientation Discrimination (TOD) Target Acquisition model calculates the sensor and signal processing effects on a set of input triangle test pattern images, judges their orientation using humans or a Human Visual System (HVS) model and derives the system image quality and operational field performance from the correctness of the responses. Combination of the TOD model and EOSTAR, basically provides the possibility to model Target Acquisition (TA) performance over the exact path from scene to observer. In this method ship representative TOD test patterns are placed at the position of the real target, subsequently the combined effects of the environment (atmosphere, background, etc.), sensor and signal processing on the image are calculated using EOSTAR and finally the results are judged by humans. The thresholds are converted into Detection-Recognition-Identification (DRI) ranges of the real target. In experiments is shown that combination of the TOD model and the EOSTAR model is indeed possible. The resulting images look natural and provide insight in the possibilities of combining the two models. The TOD observation task can be done well by humans, and the measured TOD is consistent with analytical TOD predictions for the same camera that was modeled in the ECOMOS project. © 2017 SPIE.
The Society of Photo-Optical Instrumentation Engineers (SPIE)
The Society of Photo-Optical Instrumentation Engineers (SPIE)
Topics
EOSTARHuman Vision ModelTactical Decision AidTriangle Orientation DiscriminationDecision support systemsInfrared imagingLight transmissionSignal processingAtmosphere modelingEOSTARHuman vision modelsHuman visual system modelTactical decision aidsTarget acquisitionTarget acquisition modelsTriangle orientation discriminationsImage processing
TNO Identifier
782872
ISSN
0277786X
ISBN
9781510613287
Publisher
SPIE
Article nr.
104320I
Source title
Target and Background Signatures III 2017. 11 September 2017 through 12 September 2017
Editor(s)
Schleijpen, R.
Stein, K.U.
Stein, K.U.
Files
To receive the publication files, please send an e-mail request to TNO Repository.