---
# System prepended metadata

title: Variational Prototype Learning for Deep Face Recognition
tags: [生物辨識]

---

---
tags: 生物辨識
---

# Variational Prototype Learning for Deep Face Recognition

## Introduction

#### sample-to-sample

facenet，triplet loss需要建立triplet-pair

#### sample-to-prototype

cosface,arcface....，從softmax loss變化的一系列方法

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_1.PNG)


## Method

#### VPL framework

we train the networks for several epochs, until the features are stable across hundred of steps

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_2.PNG)

#### loss function

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_3.PNG)

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_4.PNG)



#### Backpropagation

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_5.PNG)

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_6.PNG)


## Experiments

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_8.PNG)

![](https://esgarden.esunbank.com.tw/personal/esb21788/Documents/%E6%96%B0%E8%B3%87%E6%96%99%E5%A4%BE/vpl_9.PNG)