Vehicle track identification in synthetic aperture radar images
| DWPI Title: Computing device for vehicle track identification in synthetic aperture radar (SAR) images, has memory that comprises instructions executed by processor to display second coherent change detection image that captures vehicle track |
| Abstract: Various technologies pertaining to identification of vehicle tracks in synthetic aperture radar coherent change detection image data are described herein. Coherent change detection images are analyzed in a parameter space using Radon transforms. Peaks of the Radon transforms correspond to features of interest, including vehicle tracks, which are identified and classified. New coherent change detection images in which the features of interest and their characteristics are signified are then generated using inverse Radon transforms. |
| Use: Computing device for vehicle track identification in SAR images for use in aircraft. Can also be used for surveillance, military, and law enforcement purposes. |
| Advantage: The computing device enables the image reconstruction module to reduce the artifacts through a process of morphological erosion of the inverse Radon transform images with a circular disk structuring element, which allows rejection of clutter and artifacts without requiring knowledge of the orientation of features of interest. The image fusion module performs a comparison among the images to eliminate window-size dependent artifacts, while retaining detected tracks, which are independent of the window size used to segment the input images. The CCD images are preprocessed to enhance features of interest and mitigate clutter before sending the third CCD image to the track identification module. |
| Novelty: The computing device comprises a processor, a display and a memory that comprises instructions executed by the processor to calculate a Radon transform of the portion of the first coherent change detection image, in response to receiving a first coherent change detection image of a scene. The peak of the Radon transform is identified as well as the vehicle track in the scene based upon the identified peak of the Radon transform. The second coherent change detection image is generated by calculating an inverse Radon transform. The color value is assigned to a pixel of the second coherent change detection image and corresponds to an attribute of the vehicle track. The second coherent change detection image is displayed on the display and captures the vehicle track. |
| Filed: 10/29/2015 |
| Application Number: US14927102A |
| Tech ID: SD 13256.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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