A method of real-time target detection in infrared remote sensing images based on fpga

Abstract

The invention discloses an FPGA (Field Programmable Gate Array)-based infrared remote sensing image real-time target detection method. The method mainly aims at solving the problems of high omission ratio, multiple false alarms, poor robustness and the like of the existing ship detection algorithm. The method is mainly composed of a coarse detection module based on a gradient convolution model anda fine detection module based on Fourier spectrum and SVM. According to the invention, the ship target and typical false alarm characteristics in the infrared remote sensing image are fully analyzed,and available features capable of effectively distinguishing ship targets and typical false alarms are selected, and an accurate and simple target classification model is constructed in combination with a support vector machine classification algorithm, and quick and accurate elimination of the false alarms is realized in combination with two-dimensional Fourier transform. Meanwhile, consumptionof FPGA logic resources and storage resources can be reduced, and the advantage of FPGA parallel control is brought into play, so that high-precision target detection is completed under the conditionthat few FPGA resources are occupied.

Description

technical field [0001] The invention relates to the technical field of digital image processing, relates to an FPGA-based real-time target detection method for infrared remote sensing images, and in particular to a method for realizing a real-time target detection method for infrared remote sensing images on a hardware platform. Background technique [0002] With the implementation of major special projects of my country's high-resolution earth observation system, infrared remote sensing image acquisition technology will surely usher in new opportunities for development. infrared remote sensing images. How to automatically, accurately, and quickly identify targets from massive infrared remote sensing images has become a technical bottleneck that restricts my country's aerospace reconnaissance equipment from fully exerting its military effectiveness, and it is urgent for scientific researchers to come up with effective solutions. Due to the influence of various factors such a...

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Problems solved by technology

[0007] In view of this, the object of the present invention is to provide a real-time target detection method for infrared remote sensing images based on FPGA, aiming at the problems of high missed detection rate, many false alarms, poor robustness and high resource consumption of existing ship detection algorithms, FPGA Realize the image processing work and detection core function control as the core, and the parallel data interactive transmission between the algorithm modules on the chip can ensure the algorithm to form an efficient pipeline

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