level2-data-annotation_cv-level2-cv-15 created by GitHub Classroom

Overview

[AI Tech 3기 Level2 P Stage] 글자 검출 대회

image

팀원 소개

김규리_T3016 박정현_T3094 석진혁_T3109 손정균_T3111 이현진_T3174 임종현_T3182

Overview

OCR (Optimal Character Recognition) 기술은 사람이 직접 쓰거나 이미지 속에 있는 문자를 얻은 다음 이를 컴퓨터가 인식할 수 있도록 하는 기술로, 컴퓨터 비전 분야에서 현재 널리 쓰이는 대표적인 기술 중 하나입니다.

OCR task는 글자 검출 (text detection), 글자 인식 (text recognition), 정렬기 (Serializer) 등의 모듈로 이루어져 있는데 본 대회는 글자 검출 (text detection)만을 해결하게 됩니다.

데이터를 구성하고 활용하는 방법에 집중하는 것을 장려하는 취지에서, 제공되는 베이스 코드 중 모델과 관련한 부분을 변경하는 것이 금지되어 있습니다. 데이터 수집과 preprocessing, data augmentation 그리고 optimizer, learning scheduler 등 최적화 방식을 변경할 수 있습니다.

  • Input : 글자가 포함된 전체 이미지
  • Output : bbox 좌표가 포함된 UFO Format

평가방법

  • DetEval

    이미지 레벨에서 정답 박스가 여러개 존재하고, 예측한 박스가 여러개가 있을 경우, 박스끼리의 다중 매칭을 허용하여 점수를 주는 평가방법 중 하나 입니다

    1. 모든 정답/예측박스들에 대해서 Area Recall, Area Precision을 미리 계산해냅니다.

    2. 모든 정답 박스와 예측 박스를 순회하면서, 매칭이 되었는지 판단하여 박스 레벨로 정답 여부를 측정합니다.

    3. 모든 이미지에 대하여 Recall, Precision을 구한 이후, 최종 F1-Score은 모든 이미지 레벨에서 측정 값의 평균으로 측정됩니다.

      image

Final Score  🏅

  • Public : f1 0.6897 → Private f1 : 0.6751
  • Public : 11위/19팀 → Private : 9위/19팀

image

Archive contents

template
├──code
│  ├──augmentation.py
│  ├──convert_mlt.py
│  ├──dataset.py
│  ├──deteval.py
│  ├──east_dataset.py
│  ├──inference.py
│  ├──loss.py
│  ├──model.py
│  └──train.py
└──input
   └──ICDAR2017_Korean
		  └──data
			  	├──images
		      └──ufo
			        ├──train.json
							└──val.json

Dataset

  • ICDAR MLT17 Korean : 536 images ⊆ ICDAR MLT17 : 7,200 images

  • ICDAR MLT19 : 10,000 images

  • ICAR ArT : 5,603 images

Experiment

Results

dataset 데이터 수 LB score (public→private) Recall Precision
01 ICDAR17_Korean 536 0.4469 → 0.4732 0.3580 → 0.3803 0.5944 → 0.6264
02 Camper (폴리곤 수정 전) 1288 0.4543 → 0.5282 0.3627 → 0.4349 0.6077 → 0.6727
03 Camper (폴리곤 수정 후) 1288 0.4644 → 0.5298 0.3491 → 0.4294 0.6936 → 0.6913
04 ICDAR17_Korean + Camper 1824 0.4447 → 0.5155 0.3471 → 0.4129 0.6183 → 0.6858
05 ICDAR17(859) 859 0.5435 → 0.5704 0.4510 → 0.4713 0.6837 → 0.7222
06 ICDAR17_MLT 7200 0.6749 → 0.6751 0.5877 → 0.5887 0.7927 → 0.7912
07 ICDAR19+ArT 약 15000 0.6344 → 0.6404 0.5489 → 0.5607 0.7514 → 0.7465

Requirements

pip install -r requirements.txt

UFO Format으로 변환

python convert_mlt.py

SRC_DATASET_DIR = {변환 전 data 경로}

DST_DATASET_DIR = {변환 된 data 경로}

UFO Format ****

File Name
    ├── img_h
    ├── img_w
    └── words
        ├── points
        ├── transcription
        ├── language
        ├── illegibillity
        ├── orientation
        └── word_tags

Train.py

python train.py --data_dir {train data path} --val_data_dir {val data path} --name {wandb run name} --exp_name {model name
A markdown wiki and dashboarding system for Datasette

datasette-notebook A markdown wiki and dashboarding system for Datasette This is an experimental alpha and everything about it is likely to change. In

Simon Willison 19 Apr 20, 2022
A document format conversion service based on Pandoc.

reformed Document format conversion service based on Pandoc. Usage The API specification for the Reformed server is as follows: GET /api/v1/formats: L

David Lougheed 3 Jul 18, 2022
Deduplicating archiver with compression and authenticated encryption.

More screencasts: installation, advanced usage What is BorgBackup? BorgBackup (short: Borg) is a deduplicating backup program. Optionally, it supports

BorgBackup 9k Jan 09, 2023
Explicit, strict and automatic project version management based on semantic versioning.

Explicit, strict and automatic project version management based on semantic versioning. Getting started End users Semantic versioning Project version

Dmytro Striletskyi 6 Jan 25, 2022
Openapi-core is a Python library that adds client-side and server-side support for the OpenAPI Specification v3.

Openapi-core is a Python library that adds client-side and server-side support for the OpenAPI Specification v3.

A 186 Dec 30, 2022
A simple tutorial to get you started with Discord and it's Python API

Hello there Feel free to fork and star, open issues if there are typos or you have a doubt. I decided to make this post because as a newbie I never fo

Sachit 1 Nov 01, 2021
This repo contains everything you'll ever need to learn/revise python basics

Python Notes/cheat sheet Simplified notes to get your Python basics right Just compare code and output side by side and feel the rush of enlightenment

Hem 5 Oct 06, 2022
Sphinx Bootstrap Theme

Sphinx Bootstrap Theme This Sphinx theme integrates the Bootstrap CSS / JavaScript framework with various layout options, hierarchical menu navigation

Ryan Roemer 584 Nov 16, 2022
Project created to help beginner programmers to study, despite the lack of internet!

Project created to help beginner programmers to study, despite the lack of internet!

Dev4Dev 2 Oct 25, 2021
📖 Generate markdown API documentation from Google-style Python docstring. The lazy alternative to Sphinx.

lazydocs Generate markdown API documentation for Google-style Python docstring. Getting Started • Features • Documentation • Support • Contribution •

Machine Learning Tooling 118 Dec 31, 2022
BakTst_Org is a backtesting system for quantitative transactions.

BakTst_Org 中文reademe:传送门 Introduction: BakTst_Org is a prototype of the backtesting system used for BTC quantitative trading. This readme is mainly di

18 May 08, 2021
Żmija is a simple universal code generation tool.

Żmija Żmija is a simple universal code generation tool. It is intended to be used as a means to generate code that is both efficient and easily mainta

Adrian Samoticha 2 Nov 23, 2021
The blazing-fast Discord bot.

Wavy Wavy is an open-source multipurpose Discord bot built with pycord. Wavy is still in development, so use it at your own risk. Tools and services u

Wavy 7 Dec 27, 2022
Course Materials for Math 340

UBC Math 340 Materials This repository aims to be the one repository for which you can find everything you about Math 340. Lecture Notes Lecture Notes

2 Nov 25, 2021
Documentation of the QR code found on new Austrian ID cards.

Austrian ID Card QR Code This document aims to be a complete documentation of the format used in the QR area on the back of new Austrian ID cards (Per

Gabriel Huber 9 Dec 12, 2022
🍭 epub generator for lightnovel.us 轻之国度 epub 生成器

lightnovel_epub 本工具用于基于轻之国度网页生成epub小说。 注意:本工具仅作学习交流使用,作者不对内容和使用情况付任何责任! 原理 直接抓取 HTML,然后将其中的图片下载至本地,随后打包成 EPUB。

gyro永不抽风 188 Dec 30, 2022
Make posters from Markdown files.

MkPosters Create posters using Markdown. Supports icons, admonitions, and LaTeX mathematics. At the moment it is restricted to the specific layout of

Patrick Kidger 243 Dec 20, 2022
DocumentPy is a Python application that runs in a command-line interface environment, made for creating HTML documents.

DocumentPy DocumentPy is a Python application that runs in a command-line interface environment, made for creating HTML documents. Usage DocumentPy, a

Lotus 0 Jul 15, 2021
A curated list of python programming language blogs

Python Blogs A curated list of python programming language blogs Contribute Companies/Organization # A B C D E F G H I J K L M N O P Q R S T U V W X Y

Rizky D. Onto 48 Nov 15, 2022
This is a tool to make easier brawl stars modding using csv manipulation

Brawler Maker : Modding Tool for Brawl Stars This is a tool to make easier brawl stars modding using csv manipulation if you want to support me, just

6 Nov 16, 2022