LivePortrait In ComfyUI - A Hedra AI Alike Talking Avatar In Local PC

Future Thinker @Benji
7 Jul 202407:08

TLDRThis tutorial introduces LivePortrait, an AI-powered tool that animates photos into talking avatars, mimicking real-life head movements with impressive speed and accuracy. By using implicit key points and learning from reference videos, LivePortrait can create dynamic and realistic facial animations. The process is facilitated by a custom node in Comfy UI and requires Insight face for non-commercial face recognition. The tutorial demonstrates how to install and use LivePortrait, showcasing its potential for creating detailed and natural AI animations for various applications.

Takeaways

  • 😀 Live Portrait is an AI tool that creates dynamic, talking avatars based on photos, similar to the moving pictures in Harry Potter.
  • 🔍 It uses implicit key points on the face to understand and animate facial movements realistically.
  • 📹 The AI learns head motion from reference videos, enabling the avatar to mimic the actions of the person in the video.
  • ⏱️ High-end GPU support allows for fast animation generation, approximately 12.8 milliseconds per frame.
  • 🎨 Live Portrait offers customization, letting users control specific parts of the face, like eyes or lips, for more personalized animations.
  • 📚 The code for Live Portrait is open-source and available on GitHub for anyone interested in the technology.
  • 💻 To use Live Portrait with Comfy UI, users need to install a custom node and download a specific model refined for Comfy UI.
  • 🔍 Insight Face, a non-commercial face recognition library, is required for the process and can be downloaded for testing and research.
  • 📁 Users must install dependencies, download model files, and place them in the correct folders within Comfy UI.
  • 📑 Example workflows are provided to help users get started with generating different face avatars using the custom nodes.
  • 👀 Retargeting options for eyes and lips can be adjusted to control the level of facial motion and detail in the animation.
  • 🎬 Live Portrait has potential for enhancing AI animation characters in movies or other media, making them more natural and lifelike.

Q & A

  • What is LivePortrait and how does it differ from traditional avatars?

    -LivePortrait is an AI-powered talking avatar that can be generated locally on a PC and is capable of learning head motion from a reference video. Unlike traditional avatars, it uses implicit key points on the face to understand and mimic realistic facial movements, making the output more dynamic and lifelike.

  • How does LivePortrait utilize implicit key points to animate a photo?

    -LivePortrait places invisible dots, or implicit key points, on important parts of the face such as the eyes, nose, and mouth. These key points help the AI understand how to move the face realistically, allowing it to animate a photo in a way that mimics the movements of a real person.

  • Can LivePortrait learn from any type of video to animate a photo?

    -Yes, LivePortrait can learn from real videos where a person is talking, smiling, or making other facial expressions. It uses the motion from these videos to animate the photo, making it capable of replicating the actions seen in the video.

  • How fast can LivePortrait generate animations with the help of a high-end GPU?

    -With the power of a high-end GPU, LivePortrait can create animations in just 12.8 milliseconds, making it a fast and efficient tool for generating talking avatars.

  • What control does LivePortrait offer over specific parts of the face during animation?

    -LivePortrait allows users to have control over specific parts of the face, such as animating just the eyes or lips. This level of customization makes it suitable for creating detailed and tailored animations.

  • Is the code for LivePortrait available for public use?

    -Yes, the developers have made the LivePortrait code available to everyone on their GitHub page, allowing users to access and potentially contribute to the project.

  • What additional software is required to use LivePortrait with Comfy UI?

    -To use LivePortrait with Comfy UI, users need to download and install the LivePortrait safe tensor mod model refined for Comfy UI and Insight face, a non-commercial face recognition library, for testing and research purposes.

  • How can users get started with LivePortrait custom nodes in Comfy UI?

    -Users can search for the Comfy UI LivePortrait custom node in the Comfy UI manager, install it, and then restart Comfy UI. They need to download the required model files and place them in the appropriate folder, then follow the instructions on the GitHub project page to set up the custom nodes workflow.

  • What are the different settings available in LivePortrait custom nodes for facial animation?

    -LivePortrait custom nodes offer settings for retargeting specific parts of the face, such as the eyes and lips. Users can enable or disable these settings to control the level of facial motion and create more natural or specific animations.

  • How can LivePortrait be potentially useful in AI animation and character creation?

    -LivePortrait can be used to enhance the details of facial movements in AI animation characters, making them speak and move in a more natural manner. This could be particularly useful in the production of AI movies or other animated content where realistic character movements are desired.

Outlines

00:00

🧙‍♂️ Creating Live Portrait Avatars with AI

This tutorial introduces the process of generating a dynamic, talking avatar using AI technology. The framework, known as 'live portrait,' can learn head motion from a reference video, making the avatar's movements more lifelike. It operates by using 'implicit key points' on the face to understand realistic movements. The AI can be trained with a video of someone talking or smiling, and it will mimic the motions to animate a still photo. The process is efficient, taking only 12.8 milliseconds with a high-end GPU. Users have control over specific facial features and can customize the avatar's expressions. The tutorial also guides on how to install the necessary custom nodes and models for the 'Comfy UI' and 'Insight face' library, and provides examples of how to use these tools to create different facial animations.

05:01

🎨 Customizing and Fine-Tuning AI-Generated Facial Animations

The second part of the tutorial delves into customizing and fine-tuning the AI-generated facial animations. It demonstrates how to synchronize the avatar's lip movements with audio, and how to adjust the retargeting settings for eyes and lips to achieve more natural facial expressions. The tutorial shows examples of animations with different settings, illustrating the impact of retargeting on the final result. It suggests that turning off retargeting can lead to more natural and detailed facial movements, similar to human expressions. The potential applications of this technology in enhancing AI animation characters for movies or other media are also discussed, highlighting its utility in creating more realistic and expressive characters.

Mindmap

Keywords

💡LivePortrait

LivePortrait is a technology that brings a static image to life by animating it to mimic the movements of a person in a video. It is central to the video's theme, illustrating how AI can transform a photo into a dynamic talking avatar. The script mentions that LivePortrait uses implicit key points to understand facial movements and can be customized to animate specific parts of the face, such as the eyes or lips.

💡ComfyUI

ComfyUI is the user interface where the LivePortrait custom nodes are implemented. It is a platform that allows users to generate talking avatars locally on their PC. The script describes how to install and use the LivePortrait custom node within ComfyUI, emphasizing its role in the process of creating animated avatars.

💡Avatar

An avatar in this context refers to a digital representation of a person, which can be animated to appear as if it is talking or expressing emotions. The video discusses how LivePortrait can create such avatars that mimic the motions from a reference video, making them appear more lifelike and dynamic.

💡Implicit Key Points

Implicit key points are invisible markers that AI uses to track and animate specific parts of the face in the avatar. The script explains that these points help the AI understand how to move the face realistically, which is crucial for the animation process in LivePortrait.

💡Retargeting

Retargeting in the script refers to the process of directing the animation to specific parts of the avatar's face, such as the eyes or lips. It is a feature of LivePortrait that allows for customization and control over which parts of the face move in sync with the video's audio.

💡High-End GPU

A high-end GPU is a powerful graphics processing unit that accelerates the creation of animations by LivePortrait. The script mentions that with the power of a high-end GPU, animations can be generated in just 12.8 milliseconds, highlighting the efficiency of the process.

💡GitHub

GitHub is a platform where the code for LivePortrait and its custom nodes are made available to the public. The script encourages viewers to check out the GitHub page for the project, indicating that the source code and necessary files can be accessed and used by anyone interested in the technology.

💡Insight Face

Insight Face is a non-commercial face recognition library mentioned in the script as a requirement for using LivePortrait. It is used for testing and research purposes, and the script instructs viewers on how to download and install it for the LivePortrait project.

💡Custom Nodes

Custom nodes in the script refer to the specific components within ComfyUI that are designed for LivePortrait. They are used to create and control the animated avatars. The video provides a step-by-step guide on how to install and use these custom nodes in ComfyUI.

💡Face Recognition

Face recognition is a technology that identifies and tracks facial features, which is essential for the LivePortrait's animation process. The script explains that the AI uses face recognition to guide the movements of the avatar, ensuring that the animation is realistic and follows the motions of the reference video.

💡AI Animation

AI animation is the broader concept of using artificial intelligence to create animated content, such as talking avatars. The video discusses the potential of LivePortrait for AI animation, suggesting its use in enhancing the natural movement and speech of characters in AI-generated movies or videos.

Highlights

Tutorial on generating an HRA-like talking avatar in Comfy UI locally.

Framework can learn head motion from a reference video.

Talking Avatar becomes more dynamic with real person video motion.

Live Portrait uses implicit key points on the face for realistic movements.

AI learns face movements from real videos to animate photos.

High-end GPU allows animations to be created in 12.8 milliseconds.

Control over specific parts of the face for customized animations.

Source code is available on GitHub for Live Portrait.

Instructions to install Comfy UI Live Portrait custom node.

Requirement to download the Live Portrait safe tensor mod model.

Installation of Insight face, a non-commercial face recognition library.

Process of installing dependencies and components for custom nodes.

Downloading and placing model files in the correct folder.

Using Comfy UI manager to download and set up custom nodes.

Examples of Live Portrait custom node settings and their effects.

Demonstration of retargeting for eyes and lips in animations.

Example of whole face motion without retargeting for a natural look.

Importance of fine-tuning settings for detailed face movements.

Potential use of Live Portrait for AI animation characters in movies.

Inspirational conclusion on leveraging Live Portrait for AI animation.