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
Select range and every time the screen changes, OCR is activated.

ASOCR(Auto Screen OCR) Select range and every time you press Space key, OCR is activated. 範囲を選ぶと、あなたがスペースキーを押すたびに、画面が変わる度にOCRが起動します。 usage1: simple OC

1 Feb 13, 2022
Solution for Problem 1 by team codesquad for AIDL 2020. Uses ML Kit for OCR and OpenCV for image processing

CodeSquad PS1 Solution for Problem Statement 1 for AIDL 2020 conducted by @unifynd technologies. Problem Given images of bills/invoices, the task was

Burhanuddin Udaipurwala 111 Nov 27, 2022
OCR, Object Detection, Number Plate, Real Time

README.md PrePareded anaconda env requirements.txt clova AI → deep text recognition → trained weights (ex, .pth) wpod-net weights (ex, .h5 , .json) ht

Kaven Lee 7 Dec 06, 2022
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
OCR engine for all the languages

Description kraken is a turn-key OCR system optimized for historical and non-Latin script material. kraken's main features are: Fully trainable layout

431 Jan 04, 2023
Layout Analysis Evaluator for the ICDAR 2017 competition on Layout Analysis for Challenging Medieval Manuscripts

LayoutAnalysisEvaluator Layout Analysis Evaluator for: ICDAR 2019 Historical Document Reading Challenge on Large Structured Chinese Family Records ICD

17 Dec 08, 2022
An organized collection of tutorials and projects created for aspriring computer vision students.

A repository created with the purpose of teaching students in BME lab 308A- Hanoi University of Science and Technology

Givralnguyen 5 Nov 24, 2021
Détection de créneaux de vaccination disponibles pour l'outil ViteMaDose

Vite Ma Dose ! est un outil open source de CovidTracker permettant de détecter les rendez-vous disponibles dans votre département afin de vous faire v

CovidTracker 239 Dec 13, 2022
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
document image degradation

ocrodeg The ocrodeg package is a small Python library implementing document image degradation for data augmentation for handwriting recognition and OC

NVIDIA Research Projects 134 Nov 18, 2022
Image augmentation library in Python for machine learning.

Augmentor is an image augmentation library in Python for machine learning. It aims to be a standalone library that is platform and framework independe

Marcus D. Bloice 4.8k Jan 04, 2023
aardio的opencv库

opencv_aardio dll库下载地址:https://github.com/xuncv/opencv-plugin/releases import cv2 img = cv2.imread("./images/Lena.jpg",1) img = cv2.medianBlur(img,5)

71 Dec 31, 2022
A Tensorflow model for text recognition (CNN + seq2seq with visual attention) available as a Python package and compatible with Google Cloud ML Engine.

Attention-based OCR Visual attention-based OCR model for image recognition with additional tools for creating TFRecords datasets and exporting the tra

Ed Medvedev 933 Dec 29, 2022
One Metrics Library to Rule Them All!

onemetric Installation Install onemetric from PyPI (recommended): pip install onemetric Install onemetric from the GitHub source: git clone https://gi

Piotr Skalski 49 Jan 03, 2023
a Deep Learning Framework for Text

DeLFT DeLFT (Deep Learning Framework for Text) is a Keras and TensorFlow framework for text processing, focusing on sequence labelling (e.g. named ent

Patrice Lopez 350 Dec 19, 2022
End-to-end pipeline for real-time scene text detection and recognition.

Real-time-Scene-Text-Detection-and-Recognition-System End-to-end pipeline for real-time scene text detection and recognition. The detection model use

Fangneng Zhan 89 Aug 04, 2022
Hand Detection and Finger Detection on Live Feed

Hand-Detection-On-Live-Feed Hand Detection and Finger Detection on Live Feed Getting Started Install the dependencies $ git clone https://github.com/c

Chauhan Mahaveer 2 Jan 02, 2022
Generating .npy dataset and labels out of given image, containing numbers from 0 to 9, using opencv

basic-dataset-generator-from-image-of-numbers generating .npy dataset and labels out of given image, containing numbers from 0 to 9, using opencv inpu

1 Jan 01, 2022
Markup for note taking

Subtext: markup for note-taking Subtext is a text-based, block-oriented hypertext format. It is designed with note-taking in mind. It has a simple, pe

Gordon Brander 224 Jan 01, 2023