Device for real-time transmission, compression and storage of images of space TDICCD (Time Delay and Integration Charge Coupled Device) camera
A real-time transmission and storage device technology, applied in the direction of image communication, TV, color TV components, etc., can solve the problems of large resource occupation, single event flipping of image memory, complexity, etc.
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[0025] Invention idea of the present invention is:
[0026] According to the possible output of low-speed, medium-speed and high-speed image data by the CCD imaging unit, the corresponding transmission system is designed, and the ECC error correction coding strategy is adopted during transmission to improve the transmission reliability. The image real-time compression unit adopts the special compression chip ADV212, according to the working characteristics of ADV212 and multi-channel CCD image output characteristics, adopts Custom working mode and frame structure strategy to realize single-chip ADV212 processing multi-channel CCD image data. The compressed code stream is stored in a large-capacity NAND flash memory. In order to prevent the phenomenon of single event flipping in the memory, this paper uses the RS error correction algorithm. Finally, the compressed code stream adopts the G-level transmission scheme, which greatly reduces the transmission channel. The whole de...
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