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realesrgan_paddlesport's Introduction

Real-ESRGAN_paddlesport 使用Real-ESRGAN对足球场景进行超分辨率重建

Real-ESRGAN: Training Real-World Blind Super-Resolution with Pure Synthetic Data

官方源码:https://github.com/xinntao/Real-ESRGAN

Paddle模型复现地址https://github.com/sldyns/Real-ESRGAN_paddle_Lite

1. 简介

Real-ESRGAN

本项目基于PaddlePaddle对Real-ESRGAN网络复现的仓库,该网络如上图所示。本项目使用将论文作者用pytorch训练好的权重转为paddle的权重作为预训练模型,再运用足球场景高分辨率数据finetune训练,针对足球场景的低分辨率图像进行超分辨率重建

待完善的内容

  • 由于本模型使用的数据集是自制数据集,高分辨率图像是通过ffmpeg选取关键帧的方式从高清蓝光的欧冠决赛中选取的,数据中有可能并不全是质量很高的足球场景图像,导致模型效果没达到最佳,可以对关键帧图像质量进行评价再进一步筛选成为训练集;
  • 模型训练了102500次iter,共计82个小时,有可能继续训练效果会更好一些;

2. 足球场景超分辨率效果

使用从百度百科上搜到的低分辨率足球图像进行测试,对比不进行足球场景finetune的Real-ESRGAN权重,展示的最后一张为我初中时候的足球场景照片:

LQ origin-Real-ESRGAN finetune-Real-ESRGAN
  • 如果不进行finetune,则超分后的图像会有不真实的感觉,例如第一张图的面部、第二张图的马拉多纳的手臂和背景观众、第三张图的背景球员、第四张图的教练席、第五张图的面部
  • 足球场景中一般聚焦于场上球员,背景是虚化的,原始的权重会对虚化的背景也进行重建而导致有失真的感觉

realesrgan_paddlesport's People

Contributors

kongdebug avatar sldyns avatar

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