# 口罩佩戴AI模型訓練與辨認 (機器學習)示範

參與者可以利用KOI 機器學習功能, 通過對KOI AI 鏡頭進行訓練, 讓KOI 在辨認模式中, 分辨出鏡頭前的人面是否有配把配戴口罩。

### KOI 機器學習的訓練與辨認概念

#### 模型訓練:

把戴有口罩的人面影像 及 沒有配帶口罩人面的影像, 分別儲到2個分類, 並儲存到KOI 的SD card 中。

#### 辨認模式:

KOI 會根據訓練所得的模型資訊, 判斷在鏡頭前的影像是屬於那一個分類。

### 編程平台

Microsoft MakeCode **<https://makecode.microbit.org/>**

#### 有用插件

Kittenbot Robotbit 擴展板 **<https://github.com/KittenBot/pxt-robotbit>**

Kittenbot Armourbit 擴展盒 **<https://github.com/KittenBot/pxt-powerbrick>**

KOI **<https://github.com/KittenBot/pxt-koi>**

### 編程示範與解說

#### **機器學習2步曲**

1. 分類模型訓練
2. 運行分類器 - 辨認模式

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_03.jpg)

#### **示範器材接線**

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_04.jpg)

#### **1. 分類模型訓練**

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_05.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_06.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_07.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_08.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_09.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_10.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_11.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_12.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_13.jpg)

**\*\*訓練參考程式:** [**https://makecode.microbit.org/\_fozKmF7sV3jd**](https://makecode.microbit.org/_fozKmF7sV3jd) **\*\***

**訓練示範 Youtube:** [**https://youtu.be/CD-KRfKVDKc**](https://youtu.be/CD-KRfKVDKc)

#### 2. **運行分類器** - 辨認模式[](https://kittenbothkcompetition.readthedocs.io/en/latest/aiMask/AiMaskTechnicalSupport.html#id9)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_14.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_15.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_16.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_17.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_18.jpg)

![](https://kittenbothkcompetition.readthedocs.io/en/latest/_images/MaskedORNot_19.jpg)

**\*\*\*\*辨認參考程式:** [**https://makecode.microbit.org/\_g5rU25gYcKYo**](https://makecode.microbit.org/_g5rU25gYcKYo) **\*\***

**辨認示範 Youtube:** [**https://youtu.be/Z4Ce5h6rGqs**](https://youtu.be/Z4Ce5h6rGqs)