Target on-orbit intelligent detection method and device for rotary swing scanning ultra-wide satellite

A target detection and intelligent detection technology, which is applied in neural learning methods, instruments, scene recognition, etc., can solve the problems of relying on expert experience and unsupported on-board resources, reduce model size and computing power consumption, realize rapid detection, The effect of reducing the amount of parameters and calculation

Pending Publication Date: 2022-04-29
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Problems solved by technology

[0004] This application provides an on-orbit intelligent detection method, device, and storage medium for rotating and sweeping ultra-wide satellites, so as to at least solve the technical problems in related technologies that rely on expert experience and cannot be supported by on-board resources.

Method used

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  • Target on-orbit intelligent detection method and device for rotary swing scanning ultra-wide satellite
  • Target on-orbit intelligent detection method and device for rotary swing scanning ultra-wide satellite
  • Target on-orbit intelligent detection method and device for rotary swing scanning ultra-wide satellite

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Embodiment 1

[0031] figure 1 It is a schematic flow chart of an on-orbit intelligent detection method for targets oriented to rotating and sweeping ultra-wide satellites according to an embodiment of the present application, as shown in figure 1 As shown, can include:

[0032] Step 101, building a lightweight object detection model.

[0033] Among them, in this application, the lightweight object detection model may include a lightweight feature extraction backbone network.

[0034] And, in this application, the lightweight target detection model uses a single-stage detection framework, so that candidate frames and target categories can be calculated at the same time, which improves the detection efficiency.

[0035] Specifically, in this application, the above-mentioned single-stage detection framework may be an SSD framework or a YOLO framework.

[0036] Step 102, using the historical remote sensing image data set to tune the lightweight target detection model to obtain an optimal lig...

Embodiment 2

[0071] further, Figure 4 It is a schematic structural diagram of a target on-orbit intelligent detection device for rotating and sweeping ultra-wide satellites provided according to an embodiment of the present application, as shown in Figure 4 As shown, can include:

[0072] A construction module 401, configured to construct a lightweight target detection model, wherein the lightweight target detection model includes a lightweight feature extraction backbone network;

[0073] The tuning module 402 is configured to tune the lightweight target detection model using historical remote sensing image data sets to obtain an optimal lightweight target detection model;

[0074] The first processing module 403 is used to input the obtained remote sensing image to be detected into the optimal lightweight target detection model, and obtain the output feature map of the backbone network through the lightweight feature extraction backbone network in the optimal lightweight target detect...

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Abstract

According to the target on-orbit intelligent detection method and device for the rotating and sweeping ultra-wide satellite and the storage medium, the light-weight target detection model is constructed, the historical remote sensing image data set is used for adjusting and optimizing the light-weight target detection model, and the optimal light-weight target detection model is obtained; then extracting a backbone network from the obtained to-be-detected remote sensing image through lightweight features in the optimal lightweight target detection model to obtain a backbone network output feature map, and carrying out multiple different convolution operations on the backbone network output feature map to obtain feature maps of multiple scales; and enabling the feature maps of the multiple scales to pass through corresponding detector classifiers to obtain a plurality of corresponding preset frames, and carrying out rapid maximum suppression processing on the plurality of preset frames to obtain a target detection result. The method provided by the invention does not need to depend on expert experience, reduces parameter quantity and calculation quantity, reduces model size and calculation power consumption, improves satellite in-orbit target detection efficiency, and realizes rapid detection of a satellite on a target.

Description

technical field [0001] The present application relates to the technical field of object detection for ultra-wide satellites with rotating and sweeping, and in particular to an on-orbit intelligent detection method, device and storage medium for objects of ultra-wide rotating and sweeping satellites. Background technique [0002] With the rapid development of earth observation technology, in-orbit satellites with different widths and resolutions in high, middle and low orbits together form an earth observation network. Among them, the ultra-wide remote sensing satellite adopts a new ultra-wide coverage imaging system of vertical orbit scanning and along-orbit splicing. The satellite orbit height is 500km, the sub-satellite point spatial resolution is 1 meter, and the imaging width is up to 3000km. Full surface coverage. However, the data volume per unit time of remote sensing images acquired by ultra-wide satellites is as high as 420Gbps, far exceeding the data transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V20/13G06V10/25G06V10/774G06V10/82G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06N3/045G06F18/214
Inventor 陈波曹喜滨庞艳华王峰王一魏小峰
Owner HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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