DTIC ADA037142: Experimental Development of a FLIR pdf

DTIC ADA037142: Experimental Development of a FLIR

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Description of the Book:

This report, which covers the work performed during the second quarter, primarily concerns the autofocus experiments. The object was to determine the use of the 2D Haar processor as an accurate sensor on in-focus/defocus conditions in FLIR systems. To validate this use, a series of measurements were taken to determine sensitivity, accuracy, and repeatability (temporarily substituting a camera for the FLIR). Initial measurements were made using a RETMA resolution chart. This was followed by using thermograms provided by NVL. The analysis and graphed results show the effect of focus adjustment on the ac magnitudes and ac power of the Haar coefficients and the generalized descriptors. Using imagery with some amount of activity within the view, it can be shown that a simple scalar value can be computed in real time, which has a sensitivity greater than the eye in determining best focus. The second part of this report discusses the automatic deblurring experiments, which have already been started and are planned to continue into the following quarter

• Creator/s: Defense Technical Information Center
• Date: 2/17/1977
• Year: 1977
• Book Topics/Themes: DTIC Archive, Noda, T, Henning, H, Leiboff, T, Deal, B, NORTHROP CORP ANAHEIM CALIF ELECTRO-MECHANICAL DIV, *SIGNAL PROCESSING, *IMAGE PROCESSING, *DATA PROCESSING, *FORWARD LOOKING INFRARED SYSTEMS, *INFRARED DETECTORS, *FOCUSING, ALGORITHMS, COMPUTERS, SIGNAL TO NOISE RATIO, SENSITIVITY, TRANSFORMATIONS(MATHEMATICS), INFRARED IMAGES, VIDEO SIGNALS, DATA PROCESSING EQUIPMENT

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