Preprocessing Of Infrared Image Algorithm Based On FPGA And DSP

With the development of the microelctronic technology,much improvement has been achieved in the FPGA field,such as RAM,PLL,embedded multipliers and DSP blocks.Electron engineers can design all kinds of signal algorithms such as FFT and FIR through the development software offered by the fpga companies. Real time image processing system realize complex algorithms using the structure of fpga+dsp.In order to get the most efficiency,the image processing algorithms are classified, for the high real-time algorithms which realize easily and need quantity operations can be realized use of high performance FPGA.,and DSP is used to operate the preprocessed image data and the complex algorithms which need much more multiplication and addition operations. The system is composed of FGPA processing unit,DSP processing unit and the PCI communication unit.The contents of this paper are summarized as follows: (1) FPGA's working theory and it's application. According to the needs of algorithms select the correct FPGA chip. The circuit schematic document and PCB of the digital image processing board. (2) Configuring Stratix Devices. The PCB of configuration cable. Configuring Stratix using of the configuration cable. (3) Based on the FPGA development software and kit, the function simulations of the image processing have been finished. Median filter,Morphology Filter and Adaptive filter have been realized by use of Stratix FPGA. (4) How to use the pci 9054 chip to realize the PCI communication. The pci communication PCB board has been designed and debugged. Interruption and DMA working modes have been used. (5) C6701 dsp chip's working character and inner structure.. Peripheries devices of the dsp chips such as external memory,clock signal and power module have been designed.