Image display ghost image filtering method and system based on FPGA

Abstract

The embodiment of the invention provides an image display ghost image filtering method and system based on an FPGA. The method comprises the steps: receiving and registering a plurality of groups of original image data under the control of a drive signal; sorting red components, green components and blue components in the multiple groups of original image data respectively; obtaining a maximum value of RGB data values of the virtual image data; setting a filtering zone bit; wherein; under the conditions that the RGB data values in the original image data are smaller than the maximum value of the RGB data values of the virtual image data and the filtering flag bit is 1, the RGB data values of the output original image data are set to be 0 respectively; otherwise, normally outputting the original image data. According to the method, the problem of virtual image interference of a display image caused by serious aging of internal devices and transmission lines along with the prolonging ofthe service time of an aviation display in the prior art is solved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to an FPGA-based image display ghost filtering method and system. Background technique [0002] In the prior art, due to the harsh use environment of military aviation displays, after a certain number of years of use, due to the serious aging of the internal components and transmission lines of the display, ghosting interference occurs in the displayed image; at the same time, due to the short life of the liquid crystal display module, after a certain number of years of use It needs to be replaced with a new LCD module. The newly replaced LCD module may not be compatible with the seriously aged display back-end graphics board in terms of timing, resulting in ghosting problems in the displayed image. [0003] Therefore, to provide a kind of FPGA (Field Programmable Gate Array Field Programmable Gate Array)-based image display ghost filtering method that can effectively solve the ab...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, due to the harsh use environment of military aviation displays, after a certain number of years of use, due to the serious aging of the internal components and transmission lines of the display, ghosting interference occurs in the displayed image; at the same time, due to the short life of the liquid crystal display module, after a certain number of years of use It needs to be replaced with a new LCD module. The newly replaced LCD module may not be compatible with the aging graphics board on the rear end of the display in terms of timing, resulting in ghosting problems in the displayed image.

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