 Photometric system |
| OF THE INVENTION Referring now to the drawing one embodiment of a photometric system according to ... |
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| Method and apparatus for measuring thermal neutron absorption cross-section |
| Accordingly, an apparatus according to the present invention measures the thermal neutron ... |
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| Centrifugal clutch |
| The present invention relates to centrifugal clutches. More particularly, the present invention ... |
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| Thermal damper assembly |
| We claim: 1. A damper assembly for conserving fuel consumption in a furnace comprising baffle means ... |
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| Apparatus for counting sheets and discriminating different kinds thereof |
| What is claimed is: 1. In an apparatus for counting bendable sheets and discriminating different ... |
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| Electronically controlled braking means for a document handling machine |
| OF THE INVENTION Before considering the electronic control means of the present invention it is ... |
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| Feed mechanism for sequentially separating documents, sheets, coupons and the like |
| I claim: 1. A document separation system for separating sheets from a stack one at a time in a ... |
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| Electronic counting and control means for document handling utilizing plural counters |
| OF THE INVENTION AND PREFERRED EMBODIMENTS THEREOF The electronic sensing and control circuitry to ... |
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| Apparatus for sorting and counting a number of banknotes |
| What is claimed is: 1. An apparatus for sorting and counting a number of banknotes comprising; a ... |
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| Document handling and counting apparatus |
| OF THE INVENTION FIG. 1 shows a sheet handling and counting apparatus 10 embodying the principles ... |
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Process for automatically detecting and locating a target from a plurality of two dimensional images
| Details |
Inventors: Ulich, Bobby L.; Montgomery, John W.;
Assignee: Kaman Aerospace Corporation (Colorado Springs, CO)
Primary Examiner: Lobo; Ian J.
Assistant Examiner:
Attorney, Agent or Firm: Fishman, Dionne & Cantor
A novel data processing technique is provided for detecting and locating a target from a plurality of two-dimensional images generated by an imaging sensor such as an imaging lidar system. The present invention processes this series of two dimensional images (made with one or more imaging detectors) in an optimal statistical fashion to reliably detect and locate targets. This invention is a process by which the images are mathematically modified to reduce the deleterious effects of noise and thereby provide the highest possible probability of detection while simultaneously maintaining a very low probability of false alarm. The data processing technique described herein also provides an estimate of the reliability of the detection, the target location and an output image to be displayed for visual confirmation and perhaps classification by the operator. The method of the present invention includes some or all of the following steps: noise reduction, spatial filtering, noise parameter extraction, asymmetric threshold detection, contrast stretching, localization, recognition, range or depth determination and subimage mosaic generation. The present invention is particularly well suited for processing two dimensional images of underwater targets generated by an imaging sensor located on an airborne platform whereby the underwater target is precisely and accurately detected, located and identified. |
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DETAILED DESCRIPTION In accordance with the present invention, a novel data processing technique is provided for detecting and locating a target from a plurality of two-dimensional images generated by an imaging sensor such as an imaging lidar system.
The present invention processes this series of two dimensional images (made with one or more imaging detectors) in an optimal statistical fashion to reliably detect and locate targets.
This invention is a process by which the images are mathematically modified to reduce the deleterious effects of noise and thereby provide the highest possible probability of detection while simultaneously maintaining a very low probability of false alarm.
The data processing technique described herein also provides an estimate of the reliability of the detection, the target location and an output image to be displayed for visual confirmation and perhaps classification by the operator.
The method of the present invention includes some or all of the following steps: noise reduction, spatial filtering, noise parameter extraction, asymmetric threshold detection, contrast stretching, localization, recognition, range or depth determination and subimage mosaic generation.
The present invention is particularly well suited for processing two dimensional images of underwater targets generated by an imaging sensor located on an airborne platform whereby the underwater target is precisely and accurately detected, located and identified.
The above-discussed and other features and advantages of the present invention will be appreciated and understood by those skilled in the art from the following detailed description and drawings.
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Image Analysis 
