A detection method for navigation feature area on the surface of small celestial bodies
A technology of characteristic areas and detection methods, applied in the field of deep space exploration, can solve problems such as large amount of calculation, low navigation accuracy, and poor real-time performance
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[0041] This example is aimed at imaging the surface of the small celestial body during the period when the probe flies around the Eros 433 small celestial body, and detects the navigation feature area on the surface of the small celestial body.
[0042] This embodiment discloses a method for detecting navigation feature areas on the surface of a small celestial body. The specific implementation method includes the following steps:
[0043] Step 1: Obtain optical navigation images on the surface of small celestial bodies, such as figure 2 Shown. Perform Gaussian smoothing filter preprocessing on the original navigation image to reduce noise and high-frequency signals in the image. After that, the uneven background of the image is initially eliminated through the top hat transformation, such as image 3 Shown. Threshold segmentation of the processed image using the gray image local threshold segmentation algorithm to obtain the shadow area image of interest, such as Figure 4 Shown...
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