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# THG 构建智能数字人

### SadTalker

数字人生成可使用SadTalker(CVPR 2023),详情介绍见 [https://sadtalker.github.io](https://sadtalker.github.io)

在使用前先下载SadTalker模型:

```bash

bash scripts/sadtalker_download_models.sh  

```

[Baidu (百度云盘)](https://pan.baidu.com/s/1eF13O-8wyw4B3MtesctQyg?pwd=linl) (Password: `linl`)

> 如果百度网盘下载,记住是放在checkpoints文件夹下,百度网盘下载的默认命名为sadtalker,实际应该重命名为checkpoints



### Wav2Lip

数字人生成还可使用Wav2Lip(ACM 2020),详情介绍见 [https://github.com/Rudrabha/Wav2Lip](https://github.com/Rudrabha/Wav2Lip)

在使用前先下载Wav2Lip模型:

| Model                        | Description                                           | Link to the model                                            |
| ---------------------------- | ----------------------------------------------------- | ------------------------------------------------------------ |
| Wav2Lip                      | Highly accurate lip-sync                              | [Link](https://iiitaphyd-my.sharepoint.com/:u:/g/personal/radrabha_m_research_iiit_ac_in/Eb3LEzbfuKlJiR600lQWRxgBIY27JZg80f7V9jtMfbNDaQ?e=TBFBVW) |
| Wav2Lip + GAN                | Slightly inferior lip-sync, but better visual quality | [Link](https://iiitaphyd-my.sharepoint.com/:u:/g/personal/radrabha_m_research_iiit_ac_in/EdjI7bZlgApMqsVoEUUXpLsBxqXbn5z8VTmoxp55YNDcIA?e=n9ljGW) |
| Expert Discriminator         | Weights of the expert discriminator                   | [Link](https://iiitaphyd-my.sharepoint.com/:u:/g/personal/radrabha_m_research_iiit_ac_in/EQRvmiZg-HRAjvI6zqN9eTEBP74KefynCwPWVmF57l-AYA?e=ZRPHKP) |
| Visual Quality Discriminator | Weights of the visual disc trained in a GAN setup     | [Link](https://iiitaphyd-my.sharepoint.com/:u:/g/personal/radrabha_m_research_iiit_ac_in/EQVqH88dTm1HjlK11eNba5gBbn15WMS0B0EZbDBttqrqkg?e=ic0ljo) |

```python

class Wav2Lip:

    def __init__(self, path = 'checkpoints/wav2lip.pth'):

        self.fps = 25

        self.resize_factor = 1

        self.mel_step_size = 16

        self.static = False

        self.img_size = 96

        self.face_det_batch_size = 2

        self.box = [-1, -1, -1, -1]

        self.pads = [0, 10, 0, 0]

        self.nosmooth = False

        self.device = 'cuda' if torch.cuda.is_available() else 'cpu'

        self.model = self.load_model(path)



    def load_model(self, checkpoint_path):

        model = wav2lip_mdoel()

        print("Load checkpoint from: {}".format(checkpoint_path))

        if self.device == 'cuda':

            checkpoint = torch.load(checkpoint_path)

        else:

            checkpoint = torch.load(checkpoint_path,

                                    map_location=lambda storage, loc: storage)

        s = checkpoint["state_dict"]

        new_s = {}

        for k, v in s.items():

            new_s[k.replace('module.', '')] = v

        model.load_state_dict(new_s)



        model = model.to(self.device)

        return model.eval()

```



### ER-NeRF(Comming Soon)

ER-NeRF(ICCV2023)是使用最新的NeRF技术构建的数字人,拥有定制数字人的特性,只需要一个人的五分钟左右到视频即可重建出来,具体可参考 [https://github.com/Fictionarry/ER-NeRF](https://github.com/Fictionarry/ER-NeRF)

后续会针对此更新