CTPN + DenseNet + CTC based end-to-end Chinese OCR implemented using tensorflow and keras

Overview

简介

基于Tensorflow和Keras实现端到端的不定长中文字符检测和识别

  • 文本检测:CTPN
  • 文本识别:DenseNet + CTC

环境部署

sh setup.sh
  • 注:CPU环境执行前需注释掉for gpu部分,并解开for cpu部分的注释

Demo

将测试图片放入test_images目录,检测结果会保存到test_result中

python demo.py

模型训练

CTPN训练

详见ctpn/README.md

DenseNet + CTC训练

1. 数据准备

数据集:https://pan.baidu.com/s/1QkI7kjah8SPHwOQ40rS1Pw (密码:lu7m)

  • 共约364万张图片,按照99:1划分成训练集和验证集
  • 数据利用中文语料库(新闻 + 文言文),通过字体、大小、灰度、模糊、透视、拉伸等变化随机生成
  • 包含汉字、英文字母、数字和标点共5990个字符
  • 每个样本固定10个字符,字符随机截取自语料库中的句子
  • 图片分辨率统一为280x32

图片解压后放置到train/images目录下,描述文件放到train目录下

2. 训练

cd train
python train.py

3. 结果

val acc predict model
0.983 8ms 18.9MB
  • GPU: GTX TITAN X
  • Keras Backend: Tensorflow

4. 生成自己的样本

可参考SynthText_Chinese_versionTextRecognitionDataGeneratortext_renderer

效果展示

参考

[1] https://github.com/eragonruan/text-detection-ctpn

[2] https://github.com/senlinuc/caffe_ocr

[3] https://github.com/chineseocr/chinese-ocr

[4] https://github.com/xiaomaxiao/keras_ocr

Owner
Yang Chenguang
Yang Chenguang
Tools for manipulating and evaluating the hOCR format for representing multi-lingual OCR results by embedding them into HTML.

hocr-tools About About the code Installation System-wide with pip System-wide from source virtualenv Available Programs hocr-check -- check the hOCR f

OCRopus 285 Dec 08, 2022
Reference Code for AAAI-20 paper "Multi-Stage Self-Supervised Learning for Graph Convolutional Networks on Graphs with Few Labels"

Reference Code for AAAI-20 paper "Multi-Stage Self-Supervised Learning for Graph Convolutional Networks on Graphs with Few Labels" Please refer to htt

Ke Sun 1 Feb 14, 2022
Official code for ROCA: Robust CAD Model Retrieval and Alignment from a Single Image (CVPR 2022)

ROCA: Robust CAD Model Alignment and Retrieval from a Single Image (CVPR 2022) Code release of our paper ROCA. Check out our video, paper, and website

123 Dec 25, 2022
Code for paper "Role-based network embedding via structural features reconstruction with degree-regularized constraint"

Role-based network embedding via structural features reconstruction with degree-regularized constraint Train python main.py --dataset brazil-flights

wang zhang 1 Jun 28, 2022
天池2021"全球人工智能技术创新大赛"【赛道一】:医学影像报告异常检测 - 第三名解决方案

天池2021"全球人工智能技术创新大赛"【赛道一】:医学影像报告异常检测 比赛链接 个人博客记录 目录结构 ├── final------------------------------------决赛方案PPT ├── preliminary_contest--------------------

19 Aug 17, 2022
A Joint Video and Image Encoder for End-to-End Retrieval

Frozen️ in Time ❄️ ️️️️ ⏳ A Joint Video and Image Encoder for End-to-End Retrieval (arXiv) Repository to contain the code, models, data for end-to-end

225 Dec 25, 2022
[BMVC'21] Official PyTorch Implementation of Grounded Situation Recognition with Transformers

Grounded Situation Recognition with Transformers Paper | Model Checkpoint This is the official PyTorch implementation of Grounded Situation Recognitio

Junhyeong Cho 18 Jul 19, 2022
Textboxes_plusplus implementation with Tensorflow (python)

TextBoxes++-TensorFlow TextBoxes++ re-implementation using tensorflow. This project is greatly inspired by slim project And many functions are modifie

81 Dec 07, 2022
Balabobapy - Using artificial intelligence algorithms to continue the text

Balabobapy - Using artificial intelligence algorithms to continue the text

qxtony 1 Feb 04, 2022
Code for the head detector (HeadHunter) proposed in our CVPR 2021 paper Tracking Pedestrian Heads in Dense Crowd.

Head Detector Code for the head detector (HeadHunter) proposed in our CVPR 2021 paper Tracking Pedestrian Heads in Dense Crowd. The head_detection mod

Ramana Subramanyam 76 Dec 06, 2022
零样本学习测评基准,中文版

ZeroCLUE 零样本学习测评基准,中文版 零样本学习是AI识别方法之一。 简单来说就是识别从未见过的数据类别,即训练的分类器不仅仅能够识别出训练集中已有的数据类别, 还可以对于来自未见过的类别的数据进行区分。 这是一个很有用的功能,使得计算机能够具有知识迁移的能力,并无需任何训练数据, 很符合现

CLUE benchmark 27 Dec 10, 2022
Document blur detection based on Laplacian operator and text detection.

Document Blur Detection For general blurred image, using the variance of Laplacian operator is a good solution. But as for the blur detection of docum

JoeyLr 5 Oct 20, 2022
OpenMMLab Text Detection, Recognition and Understanding Toolbox

Introduction English | 简体中文 MMOCR is an open-source toolbox based on PyTorch and mmdetection for text detection, text recognition, and the correspondi

OpenMMLab 3k Jan 07, 2023
Demo for the paper "Overlap-aware low-latency online speaker diarization based on end-to-end local segmentation"

Streaming speaker diarization Overlap-aware low-latency online speaker diarization based on end-to-end local segmentation by Juan Manuel Coria, Hervé

Juanma Coria 185 Jan 01, 2023
A tool to enhance your old/damaged pictures built using python & opencv.

Breathe Life into your Old Pictures Table of Contents About The Project Getting Started Prerequisites Usage Contact Acknowledgments About The Project

Shah Anwaar Khalid 5 Dec 16, 2021
Ddddocr - 通用验证码识别OCR pypi版

带带弟弟OCR通用验证码识别SDK免费开源版 今天ddddocr又更新啦! 当前版本为1.3.1 想必很多做验证码的新手,一定头疼碰到点选类型的图像,做样本费时

Sml2h3 4.4k Dec 31, 2022
Rubik's Cube in pygame with OpenGL

Rubik Rubik's Cube in pygame with OpenGL The script show on the screen a Rubik Cube buit with OpenGL. Then I have also implemented all the possible mo

Gabro 2 Apr 15, 2022
PyTorch Re-Implementation of EAST: An Efficient and Accurate Scene Text Detector

Description This is a PyTorch Re-Implementation of EAST: An Efficient and Accurate Scene Text Detector. Only RBOX part is implemented. Using dice loss

365 Dec 20, 2022
Python rubik's cube solver

This program makes a 3D representation of a rubiks cube and solves it step by step.

Pablo QB 4 May 29, 2022