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
An interactive document scanner built in Python using OpenCV

The scanner takes a poorly scanned image, finds the corners of the document, applies the perspective transformation to get a top-down view of the document, sharpens the image, and applies an adaptive

Kushal Shingote 1 Feb 12, 2022
Driver Drowsiness Detection with OpenCV & Dlib

In this project, we have built a driver drowsiness detection system that will detect if the eyes of the driver are close for too long and infer if the driver is sleepy or inactive.

Mansi Mishra 4 Oct 26, 2022
Convert Text-to Handwriting Using Python

Convert Text-to Handwriting Using Python Description In this project we'll use python library that's "pywhatkit" for converting text to handwriting. t

8 Nov 19, 2022
Scan the MRZ code of a passport and extract the firstname, lastname, passport number, nationality, date of birth, expiration date and personal numer.

PassportScanner Works with 2 and 3 line identity documents. What is this With PassportScanner you can use your camera to scan the MRZ code of a passpo

Edwin Vermeer 441 Dec 24, 2022
OpenCVを用いたカメラキャリブレーションのサンプルです。2021/06/21時点でPython実装のある3種類(通常カメラ向け、魚眼レンズ向け(fisheyeモジュール)、全方位カメラ向け(omnidirモジュール))について用意しています。

OpenCV-CameraCalibration-Example FishEyeCameraCalibration.mp4 OpenCVを用いたカメラキャリブレーションのサンプルです 2021/06/21時点でPython実装のある以下3種類について用意しています。 通常カメラ向け 魚眼レンズ向け(

KazuhitoTakahashi 34 Nov 17, 2022
Indonesian ID Card OCR using tesseract OCR

KTP OCR Indonesian ID Card OCR using tesseract OCR KTP OCR is python-flask with tesseract web application to convert Indonesian ID Card to text / JSON

Revan Muhammad Dafa 5 Dec 06, 2021
Here use convulation with sobel filter from scratch in opencv python .

Here use convulation with sobel filter from scratch in opencv python .

Tamzid hasan 2 Nov 11, 2021
7th place solution

SIIM-FISABIO-RSNA-COVID-19-Detection 7th place solution Validation: We used iterative-stratification with 5 folds (https://github.com/trent-b/iterativ

11 Jul 17, 2022
Responsive Doc. scanner using U^2-Net, Textcleaner and Tesseract

Responsive Doc. scanner using U^2-Net, Textcleaner and Tesseract Toolset U^2-Net is used for background removal Textcleaner is used for image cleaning

3 Jul 13, 2022
A python program to block out your face

Readme This is a small program I threw together in about 6 hours to block out your face. It probably doesn't work very well, so be warned. By default,

1 Oct 17, 2021
Awesome Spectral Indices in Python.

Awesome Spectral Indices in Python: Numpy | Pandas | GeoPandas | Xarray | Earth Engine | Planetary Computer | Dask GitHub: https://github.com/davemlz/

David Montero Loaiza 98 Jan 02, 2023
OCR of Chicago 1909 Renumbering Plan

Requirements: Python 3 (probably at least 3.4) pipenv (pip3 install pipenv) tesseract (brew install tesseract, at least if you have a mac and homebrew

ted whalen 2 Nov 21, 2021
Developed an AI-based system to control the mouse cursor using Python and OpenCV with the real-time camera.

Developed an AI-based system to control the mouse cursor using Python and OpenCV with the real-time camera. Fingertip location is mapped to RGB images to control the mouse cursor.

Ravi Sharma 71 Dec 20, 2022
This is a tensorflow re-implementation of PSENet: Shape Robust Text Detection with Progressive Scale Expansion Network.My blog:

PSENet: Shape Robust Text Detection with Progressive Scale Expansion Network Introduction This is a tensorflow re-implementation of PSENet: Shape Robu

Michael liu 498 Dec 30, 2022
WACV 2022 Paper - Is An Image Worth Five Sentences? A New Look into Semantics for Image-Text Matching

Is An Image Worth Five Sentences? A New Look into Semantics for Image-Text Matching Code based on our WACV 2022 Accepted Paper: https://arxiv.org/pdf/

Andres 13 Dec 17, 2022
OCR powered screen-capture tool to capture information instead of images

NormCap OCR powered screen-capture tool to capture information instead of images. Links: Repo | PyPi | Releases | Changelog | FAQs Content: Quickstart

575 Dec 31, 2022
2 telegram-bots: for image recognition and for text generation

💻 📱 Telegram_Bots 🔎 & 📖 2 telegram-bots: for image recognition and for text generation. About Image recognition bot: User sends a photo and bot de

Marina Polukoshko 1 Jan 27, 2022
Convolutional Recurrent Neural Networks(CRNN) for Scene Text Recognition

CRNN_Tensorflow This is a TensorFlow implementation of a Deep Neural Network for scene text recognition. It is mainly based on the paper "An End-to-En

MaybeShewill-CV 1000 Dec 27, 2022
The papers published in top-tier AI conferences in recent years.

AI-conference-papers The papers published in top-tier AI conferences in recent years. Paper table AAAI ICLR CVPR ICML ICCV ECCV NIPS 2019 ✔️ ✔️ ✔️ ✔️

Jinbae Park 6 Dec 09, 2022
Introduction to Augmented Reality (AR) with Python 3 and OpenCV 4.2.

Introduction to Augmented Reality (AR) with Python 3 and OpenCV 4.2.

fernanda rodríguez 85 Jan 02, 2023