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
The Python Dict that's better than heroin.

addict addict is a Python module that gives you dictionaries whose values are both gettable and settable using attributes, in addition to standard ite

Mats Julian Olsen 2.3k Dec 22, 2022
Easy OpenAPI specs and Swagger UI for your Flask API

Flasgger Easy Swagger UI for your Flask API Flasgger is a Flask extension to extract OpenAPI-Specification from all Flask views registered in your API

Flasgger 3.1k Jan 05, 2023
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
Toolchain for project structure and documents optimisation

ritocco Toolchain for project structure and documents optimisation

Harvey Wu 1 Jan 12, 2022
Hjson for Python

hjson-py Hjson, a user interface for JSON Hjson works with Python 2.5+ and Python 3.3+ The Python implementation of Hjson is based on simplejson. For

Hjson 185 Dec 13, 2022
OpenTelemetry Python API and SDK

Getting Started • API Documentation • Getting In Touch (GitHub Discussions) Contributing • Examples OpenTelemetry Python This page describes the Pytho

OpenTelemetry - CNCF 1.1k Jan 08, 2023
300+ Python Interview Questions

300+ Python Interview Questions

Pradeep Kumar 1.1k Jan 02, 2023
Fully typesafe, Rust-like Result and Option types for Python

safetywrap Fully typesafe, Rust-inspired wrapper types for Python values Summary This library provides two main wrappers: Result and Option. These typ

Matthew Planchard 32 Dec 25, 2022
The OpenAPI Specification Repository

The OpenAPI Specification The OpenAPI Specification is a community-driven open specification within the OpenAPI Initiative, a Linux Foundation Collabo

OpenAPI Initiative 25.5k Dec 29, 2022
A tool that allows for versioning sites built with mkdocs

mkdocs-versioning mkdocs-versioning is a plugin for mkdocs, a tool designed to create static websites usually for generating project documentation. mk

Zayd Patel 38 Feb 26, 2022
A Python validator for SHACL

pySHACL A Python validator for SHACL. This is a pure Python module which allows for the validation of RDF graphs against Shapes Constraint Language (S

RDFLib 187 Dec 29, 2022
A curated list of awesome tools for Sphinx Python Documentation Generator

Awesome Sphinx (Python Documentation Generator) A curated list of awesome extra libraries, software and resources for Sphinx (Python Documentation Gen

Hyunjun Kim 831 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
epub2sphinx is a tool to convert epub files to ReST for Sphinx

epub2sphinx epub2sphinx is a tool to convert epub files to ReST for Sphinx. It uses Pandoc for converting HTML data inside epub files into ReST. It cr

Nihaal 8 Dec 15, 2022
An introduction to hikari, complete with different examples for different command handlers.

An intro to hikari This repo provides some simple examples to get you started with hikari. Contained in this repo are bots designed with both the hika

Ethan Henderson 18 Nov 29, 2022
A course-planning, course-map rendering and GPA-calculation web service, designed for the SFU (Simon Fraser University) student.

SFU Course Planner What is the overall goal of the project (i.e. what does it do, or what problem is it solving)? As the title suggests, this project

Ash Peng 1 Oct 21, 2021
Build AGNOS, the operating system for your comma three

agnos-builder This is the tool to build AGNOS, our Ubuntu based OS. AGNOS runs on the comma three devkit. NOTE: the edk2_tici and agnos-firmare submod

comma.ai 21 Dec 24, 2022
DeltaPy - Tabular Data Augmentation (by @firmai)

DeltaPy⁠⁠ — Tabular Data Augmentation & Feature Engineering Finance Quant Machine Learning ML-Quant.com - Automated Research Repository Introduction T

Derek Snow 470 Dec 28, 2022
Easy OpenAPI specs and Swagger UI for your Flask API

Flasgger Easy Swagger UI for your Flask API Flasgger is a Flask extension to extract OpenAPI-Specification from all Flask views registered in your API

Flasgger 3.1k Dec 24, 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