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
Fastest Git client for Emacs.

EAF Git Client EAF Git is git client application for the Emacs Application Framework. The advantages of EAF Git are: Large log browse: support 1 milli

Emacs Application Framework 31 Dec 02, 2022
charcade is a string manipulation library that can animate, color, and bruteforce strings

charcade charcade is a string manipulation library that can animate, color, and bruteforce strings. Features Animating text for CLI applications with

Aaron 8 May 23, 2022
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
Docov - Light-weight, recursive docstring coverage analysis for python modules

docov Light-weight, recursive docstring coverage analysis for python modules. Ov

Richard D. Paul 3 Feb 04, 2022
SqlAlchemy Flask-Restful Swagger Json:API OpenAPI

SAFRS: Python OpenAPI & JSON:API Framework Overview Installation JSON:API Interface Resource Objects Relationships Methods Custom Methods Class Method

Thomas Pollet 361 Nov 16, 2022
Reproducible Data Science at Scale!

Pachyderm: The Data Foundation for Machine Learning Pachyderm provides the data layer that allows machine learning teams to productionize and scale th

Pachyderm 5.7k Dec 29, 2022
Modified fork of CPython's ast module that parses `# type:` comments

Typed AST typed_ast is a Python 3 package that provides a Python 2.7 and Python 3 parser similar to the standard ast library. Unlike ast up to Python

Python 217 Dec 06, 2022
YAML metadata extension for Python-Markdown

YAML metadata extension for Python-Markdown This extension adds YAML meta data handling to markdown with all YAML features. As in the original, metada

Nikita Sivakov 14 Dec 30, 2022
100 Days of Code Learning program to keep a habit of coding daily and learn things at your own pace with help from our remote community.

100 Days of Code Learning program to keep a habit of coding daily and learn things at your own pace with help from our remote community.

Git Commit Show by Invide 41 Dec 30, 2022
layout-parser 3.4k Dec 30, 2022
A plugin to introduce a generic API for Decompiler support in GEF

decomp2gef A plugin to introduce a generic API for Decompiler support in GEF. Like GEF, the plugin is battery-included and requires no external depend

Zion 379 Jan 08, 2023
A Python module for creating Excel XLSX files.

XlsxWriter XlsxWriter is a Python module for writing files in the Excel 2007+ XLSX file format. XlsxWriter can be used to write text, numbers, formula

John McNamara 3.1k Dec 29, 2022
Resource hub for Obsidian resources.

Obsidian Community Vault Welcome! This is an experimental vault that is maintained by the Obsidian community. For best results we recommend downloadin

Obsidian Community 320 Jan 02, 2023
Documentation for the lottie file format

Lottie Documentation This repository contains both human-readable and machine-readable documentation about the Lottie format The documentation is avai

LottieFiles 25 Jan 05, 2023
An MkDocs plugin that simplifies configuring page titles and their order

MkDocs Awesome Pages Plugin An MkDocs plugin that simplifies configuring page titles and their order The awesome-pages plugin allows you to customize

Lukas Geiter 282 Dec 28, 2022
Documentation and issues for Pylance - Fast, feature-rich language support for Python

Documentation and issues for Pylance - Fast, feature-rich language support for Python

Microsoft 1.5k Dec 29, 2022
Collection of Summer 2022 tech internships!

Collection of Summer 2022 tech internships!

Pitt Computer Science Club (CSC) 15.6k Jan 03, 2023
Convenient tools for using Swagger to define and validate your interfaces in a Pyramid webapp.

Convenient tools for using Swagger to define and validate your interfaces in a Pyramid webapp.

Scott Triglia 64 Sep 18, 2022
The mitosheet package, trymito.io, and other public Mito code.

Mito Monorepo Mito is a spreadsheet that lives inside your JupyterLab notebooks. It allows you to edit Pandas dataframes like an Excel file, and gener

Mito 1.4k Dec 31, 2022
🌱 Complete API wrapper of Seedr.cc

Python API Wrapper of Seedr.cc Table of Contents Installation How I got the API endpoints? Start Guide Getting Token Logging with Username and Passwor

Hemanta Pokharel 43 Dec 26, 2022