# 引擎號碼圖像辨識
<br></br>
#### 開源智造股份有限公司
---
# 目標：
<br> </br>
## 運用AI圖像辨識，
## 自動辨認回收引擎號碼
---
## 範例：
<img src="https://i.imgur.com/umYrxa3.jpg" alt="drawing" width="400"/>
---
# OCR?
引擎號碼刻在鐵片上，顏色對比不大，
因此辨識效果不佳...
---
# 車牌辨識也不行!
- 車牌辨識要先找到車牌，才能開始辨識數字
- 不像車牌白底黑字對比大，且沒有車牌號碼字體寬度那麼大，不易辨識
---
# 場景文字偵測與辨識
#### (Scene Text Detection and Recognition)
* 最新的演算法：2019年4月
* 設計目標是辨識影像中的==場景文字==而不是文件中的高密度文字
* 處理真實世界中的影像
* 任意字體方向
<div style="text-align:left">
論文：https://arxiv.org/abs/1904.01941
實作：https://github.com/clovaai/CRAFT-pytorch
</div>
---
# 辨識效果1
<img src="https://i.imgur.com/Ees06D0.jpg" alt="drawing" width="400"/>
<img src="https://i.imgur.com/znSLQr7.jpg" alt="drawing" width="400"/>
---
# 辨識效果2
<img src="https://i.imgur.com/kPRnbVY.jpg" alt="drawing" width="400"/>
<img src="https://i.imgur.com/XD47m6Y.jpg" alt="drawing" width="400"/>
---
# 辨識效果3
<img src="https://i.imgur.com/pCnWSof.jpg" alt="drawing" width="400"/>
<img src="https://i.imgur.com/S59yBG8.jpg" alt="drawing" width="400"/>
---
# 技術特色
<img src="https://i.imgur.com/SBJSeJx.jpg" alt="drawing" width="1000"/>
---
# License: copyleft
<small>
Copyright (c) 2019-present NAVER Corp.
==Permission is hereby granted, free of charge==, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or ==sell copies of the Software==, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
</small>
{"metaMigratedAt":"2023-06-15T00:13:33.356Z","metaMigratedFrom":"YAML","title":"引擎號碼圖像辨識","breaks":true,"slideOptions":"{\"transition\":\"slide\"}","contributors":"[{\"id\":\"8aa2d433-afe8-48b4-82fe-ef54c034b81e\",\"add\":2668,\"del\":847}]"}