Blind flash element detection and compensation method based on time-space characteristics
The invention discloses a blind flash element detection and compensation method based on time-space characteristics, and the method specifically comprises the steps: S1, detecting blind elements in an infrared image shot by a ground-based telescope through employing the characteristics that the gray...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a blind flash element detection and compensation method based on time-space characteristics, and the method specifically comprises the steps: S1, detecting blind elements in an infrared image shot by a ground-based telescope through employing the characteristics that the gray values of the blind elements are basically unchanged in an image sequence and are different from normal pixels; s2, replacing a blind pixel gray value with an eight-neighborhood mean value of the blind pixel; s3, solving a sequence maximum value image for the image sequence without the blind pixels, and detecting the positions of flash elements in the sequence image by utilizing the characteristics that the gray values of the flash elements in the sequence maximum value image jump compared with those of neighborhood pixels and the gray values of the flash elements in the sequence maximum value image should be nine-neighborhood maximum values of the flash elements; and S4, for the detected flash elements, counting |
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