A license plate super-resolution processing method and system based on deep learning

Abstract

The invention discloses a license plate super-resolution processing method and system based on deep learning, which includes obtaining a series of images containing license plate information from the original compressed surveillance video; then tracking the objects of interest; selecting several points of interest and Capture images and register these images; use the deep learning training library to obtain the corresponding deep network weights, and use the deep network weights to perform super-resolution processing on the registered multi-frame images to obtain a clear high-resolution license plate I. The present invention uses a super-resolution deep network model and a gradient-guided network model to jointly optimize the strategy to learn the internal relationship between degraded characters and clear characters in high-compression surveillance video, and realize super-resolution and deblocking effect through a common deep network The effect is to improve the resolution of the degraded characters and remove the block effect, which solves the problem that the license plate characters cannot be seen clearly in the high-compression surveillance video.

Description

Technical field [0001] The invention relates to a digital video image processing method, in particular to a method and system for processing license plate super-resolution based on deep learning. Background technique [0002] In recent years, my country has entered a period of rapid social development, and the domestic security situation is severe. In order to maintain social stability and protect the safety of people's lives and properties, the state has invested 300 billion yuan in implementing safe city video surveillance projects in many cities across the country, and established a relatively complete video surveillance system. The surveillance camera captures and records various scenes that have occurred in the surveillance area in the past and present. On the one hand, it leaves clues for various future criminal investigations and evidence for civil disputes; on the other hand, it deterred various criminals and prevented various criminal activities. The license plate is t...

AI Technical Summary

Problems solved by technology

However, the existing super-resolution technology based on deep learning is known to consider the super-resolution of ideal images and videos, and there are few studies on high-compression images and videos.

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