Micro Usa, Inc.

Other

USA As Represented by Secretary of the Navy

Richard H Patterson

Kadayam S Thyagarajan

Myer Geller

Daniel E Altman

Thomas E Keenan

A method and system for increasing the detection, location, identification or classification of objects hidden on the surface or buried below the surface of the ground is disclosed. The method acquires image data in separate IR and/or visible spectral regions simultaneously and converts the data into intensity value arrays for each spectral region. These intensity value arrays are transformed into two-dimensional discrete wavelet transform arrays for each spectral region. The background clutter from the two-dimensional discrete wavelet transform arrays is removed; forming clutter reduced two-dimensional discrete wavelet transform arrays. The inverse two-dimensional discrete wavelet transform is performed on the clutter reduced two-dimensional discrete wavelet transform arrays to form clutter removed intensity value arrays. These arrays are subtracted in a pair-wise mariner to obtain chemical-specific spectral signatures. The processed images are correlated with 3-dimensional matched filters of known emissive signatures of objects to detect the presence of the object.

Systems and methods of using spatial/spectral/temporal imaging for hidden or buried explosive detection

The present invention is a processing method to increase the detection of objects below the surface of the water comprising the steps of: acquiring image data in separate spectral regions simultaneously and converting the image data into intensity value arrays for each spectral region, transforming the intensity value arrays into two-dimensional discrete wavelet transform arrays for each spectral region, and subtracting in a pair wise manner the two-dimensional discrete wavelet transform arrays thereby obtaining images showing an object below the surface of the water.

Methods for processing images to detect objects below the surface of the water

The multispectral imaging system provides detection of low contrast objects on or below the surface of a body of water through the elimination of most of the surface reflected light clutter components from multispectral images. The images are processed by taking the weighted difference of two or more spectral components and applying a demeaning or whitening filter to the result. The images can then be frame averaged where the appropriate corrections for motion, magnification, rotation, and translation have been applied. The resultant imagery can then be displayed to an operator or transmitted to a remote location.

Multispectral imaging system and methods of use

An omnidirectional non-line-of-sight communication capability is assured by ransmission and reception in the 'solar blind' ultraviolet spectrum. An omnidirectional ultraviolet source generates a UV carrier in the tens of watts power range. This is modulated and received by having a sensitivity to respond to scattered UV modulated energy. Pulse modulating the ultraviolet spectrum signal and providing appropriate logic circuitry associated with the wide field-of-view receiver reduces the values of bit error rate.

Growing community of inventors

Vista, CA, United States of America

Richard H Patterson