Multi-frame moving object detection system
| DWPI Title: System for detecting objects represented in multiple frames of remote sensing image data, has processor for outputting indication that pixel is representative of target object responsive to determining that motion path is representative |
| Abstract: A plurality of remote sensing images of a scene are received. A potential target object can be identified in one of the images, wherein the target object has a low signal-to-noise ratio (SNR). A candidate motion path of the target object can be generated based upon the images. A predicted position of the target object along the candidate motion path is determined for each of the remote sensing images. An image chip is extracted from each of the images, where each image chip is centered about the predicted position of the target object in its corresponding image. A sum image chip is generated based upon the image chips. An indication that the potential target object is an actual object in the images is output based upon a value of a center pixel of the sum image chip. |
| Use: System for tracking objects in remote sensing imagery. |
| Advantage: The computing system can identify the low SNR target pixel based upon the low signal-to-noise ratio target pixel exceeding a threshold pixel value. The object motion tracker can be executed to track motion of the object in image frames of the scene that are subsequently received by the computing system. The computing systems can be configured to identify moving objects in remote sensing images and to indicate positions of such objects to an analyst. The objects represented in multiple frames of remote sensing image data can be detected effectively. |
| Novelty: The system comprises a memory (114) for storing instructions that cause a processor (112) to receive a set of image frames that are each representative of a scene at a different time. The processor identifies a pixel of an image frame in the image frames as being potentially representative of the target object based upon a value of the pixel. A candidate motion path of the object is generated across the frames based upon the pixel, and the image chips are summed to generate a sum image chip, where each of the chips is centered about a respective point on the path. A determination is made whether the path is representative of object motion in the scene. |
| Filed: 5/5/2020 |
| Application Number: US16867314A |
| Tech ID: SD 15048.0 |
| 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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