High-spectrum image dimensionality reduction chip
A hyperspectral image and dimensionality reduction technology, which is applied in the field of image processing, can solve the problems of real-time processing and no human hyperspectral image real-time dimensionality reduction processing, etc., to achieve high module utilization efficiency, low R&D risk, and short development cycle Effect
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[0020] The present invention will be further described below in conjunction with the drawings and specific embodiments.
[0021] See figure 1 Diagram of the structure of the chip system module. In this embodiment, the Vertix5 series experiment board of Xilinx Company is used to design, simulate and verify the dimensionality reduction chip. The entire chip system can be divided into five modules: system control module, autocorrelation module, eigenvalue solving module, eigenvalue extraction module, and dimension reduction realization module. Because of the massive nature of hyperspectral image data, there are not enough storage units inside the FPGA to store the entire hyperspectral image. Therefore, it is necessary to add an external storage unit. At the same time, it is necessary to add a data input buffer at the front end of the image transmission to make the hyperspectral image. The image data is output to subsequent modules in the form of a block matrix. The divided modules...
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