Efficient track-before detect algorithm with minimal prior knowledge
| DWPI Title: Electro-optical and/or infrared system for tracking target in images, has processor for fusing set of kernel outputs to produce fused estimate that comprises fused velocity estimate and fused energy estimate that is indicative of motion |
| Abstract: Apparatus, system and method for tracking an image target in a system, wherein a system receives an image comprising a plurality of pixels. The received image is processed via a plurality of different recursive motion model kernels in parallel to provide a plurality of kernel outputs, wherein each of the motion model kernels may include a respective pixel mask. Per-pixel energy is estimated of at least some of the plurality of kernel outputs. Velocity of at least one of the image pixels may also be estimated by generating a directional energy vector for each motion model kernel. The per-pixel energy and velocity estimates are fused to produce a fused estimate representing at least some of the motion model kernels for the image. |
| Use: Electro-optical and/or infrared system for tracking a target in images. |
| Advantage: The system suppresses noise and clutter energy to perform real-time, low-signal to noise target detection. |
| Novelty: The system (120) has a processor (106) for processing a stream of change-detected images through a set of different recursive motion model kernels in parallel to provide a set of kernel outputs for a pixel of a change-detected image in the change-detected images, where each recursive motion model kernel comprises a respective motion model that generates an output in the outputs indicative of whether the pixel represents a target that is moving in conformance with the respective motion model of the recursive motion model kernel. The processor fuses the set of kernel outputs to produce a fused estimate that comprises fused velocity estimate and fused energy estimate that is indicative of motion of the target in the stream of change-detected images. |
| Filed: 1/16/2017 |
| Application Number: US15407104A |
| Tech ID: SD 13732.1 |
| 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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