Image processing system and method based on FPGA

Abstract

The invention discloses an image processing method based on an FPGA. The method comprises 1, an image collecting step that 1), the first output port of an FPGA controller sends 8 secondary analog switch gating signals in 8 collection periods in sequence, and the second output port of the FPGA controller only sends 1 primary analog switch gating signal in the 8 collection periods, 2), amplification, filtering and analog-to-digital conversion are carried out on the to-be-processed analog image signals obtained in the step 1), thereby obtaining digital image signals, and 3), the digital image signals are stored; and 2, an image compression step. The invention also discloses an image processing system based on the FPGA. The method and the system has the advantages that synchronous collection and rapid processing can be carried out on the output of the tens of CCD cameras, the port resources of the controller will not be occupied excessively, and moreover, high-speed collection and storage can be carried out on the large data volume of image signals.

Description

technical field [0001] The present invention relates to an image processing method and system, in particular to an FPGA-based image processing method and system. Background technique [0002] The huge amount of data is a prominent problem in the field of image processing; especially in the occasions where the image frame rate and resolution are required to be high, image processing systems based on common image compression chips or DSP chips and using conventional hardware structures cannot obtain Satisfactory image acquisition, compression effect. [0003] At the same time, due to the huge amount of data, the capacity requirements of the memory are also increased. The usual solution is to use a large-capacity memory or a dual-port memory, so the core controller (usually using a DSP processor) is more difficult to control the memory. Larger, the complexity of the internal logic design of the core controller will also further increase. [0004] At the same time, it is worth...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there is still a lack of an FPGA-based image processing method and system capable of high-speed acquisition and storage of large-scale image signals.

At the same time, the prior art also lacks an image processing system capable of simultaneously collecting and quickly processing the output of dozens of CCD cameras without occupying too many controller port resources.

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