Satellite video dynamic target tracking method fusing correlation filter and motion estimation

A technology of correlation filter and motion estimation, which is applied in the fields of instrumentation, computing, image data processing, etc., can solve the problems of inability to complete high-precision tracking of sensitive targets, real-time positioning of sensitive targets, traffic flow monitoring, and lack of features of ground moving targets, etc., to achieve accurate Satellite video dynamic target tracking, the effect of improving the accuracy rate

Active Publication Date: 2020-04-03
TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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Problems solved by technology

[0003] Typical targets on the ground in satellite video are vehicles, airplanes, trains, and ships. Due to the limitation of the spatial resolution of the video, these targets are generally small in the image. Many existing tracking algorithms based on temp

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  • Satellite video dynamic target tracking method fusing correlation filter and motion estimation

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[0020] The principles and features of the present invention will be described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0021] The dynamic target tracking method provided by the present invention is suitable for video satellites. Video satellites are a new type of earth observation satellites. Compared with traditional earth observation satellites, the biggest difference is that it can "stare at a certain area ", through the "staring" observation of the region to obtain high temporal resolution images of the region.

[0022] The launch of the video satellite marks that people can not only obtain remote sensing images with high spatial resolution and high spectral resolution, but also obtain remote sensing images with high temporal resolution, which will help to improve some traditional remote sensing applications such as disaster ...

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Abstract

The invention discloses a satellite video dynamic target tracking method fusing a correlation filter and motion estimation, and relates to the field of spaceflight earth observation information processing and analysis. The satellite video dynamic target tracking method comprises the steps: obtaining a satellite video, and segmenting the satellite video into continuous single-frame images; selecting a to-be-tracked target from the single-frame image, constructing image features of the target, and inputting the image features into a related filter to obtain the position of the target; performingmotion estimation processing on the position of the target through a trajectory average algorithm and a Kalman filter, and when the Kalman filter is not stable, taking the processing result of the trajectory average algorithm as a motion estimation result; and when the Kalman filter is stable, taking a processing result of the Kalman filter as a motion estimation result. The satellite video dynamic target tracking method is suitable for satellite video ground target tracking, especially when the target is shielded, can still effectively track the target, and can complete multiple applicationssuch as target high-precision tracking, sensitive target real-time positioning and traffic flow monitoring.

Description

technical field [0001] The invention relates to the field of information processing and analysis of spaceflight and earth observation, in particular to a satellite video dynamic target tracking method and device based on correlation filter and motion estimation fusion. Background technique [0002] Satellite video dynamic target tracking means that the initial state of a specified typical dynamic target (vehicle, ship, aircraft, etc.) such as position and size is given in the first frame of the satellite video, and the state of the target in the subsequent video, such as position and speed, is automatically estimated Wait. [0003] Typical targets on the ground in satellite video are vehicles, airplanes, trains, and ships. Due to the limitation of the spatial resolution of the video, these targets are generally small in the image. Many existing tracking algorithms based on template matching or optical flow, etc., because the ground The lack of features of moving targets mak...

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Application Information

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IPC IPC(8): G06T7/277
CPCG06T2207/10016G06T2207/10032G06T2207/20076G06T2207/30241G06T7/277
Inventor 李盛阳轩诗宇
Owner TECH & ENG CENT FOR SPACE UTILIZATION CHINESE ACAD OF SCI
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