Invention Title:

REAL-TIME FACIAL RESTORATION AND RELIGHTING IN VIDEOS USING FACIAL ENHANCEMENT NEURAL NETWORKS

Publication number:

US20240331094

Publication date:
Section:

Physics

Class:

G06T5/50

Inventors:

Applicant:

Smart overview of the Invention

An advanced image restoration system has been developed to enhance video quality in low-light and low-quality environments. This system dynamically re-lights users' faces during video streams, significantly improving image clarity and reducing the visibility of poor conditions to other viewers. By utilizing a machine-learning model specifically designed for image restoration, it efficiently enhances video quality in real time.

Background of Video Quality Challenges

With the rise of remote meetings and video conferencing, many users encounter issues with video quality due to poor lighting or subpar hardware. Common problems include blurriness, noise, and distortion, which degrade the viewing experience. Existing systems often struggle to correct these issues effectively, leading to increased latency and resource consumption without achieving satisfactory results.

Functionality of the Restoration System

The system employs a combination of an autoencoder model and a distortion classifier to create a highly effective image restoration machine-learning model. This model addresses various image quality issues, such as low light and distortion, by enhancing the user's face in real time. The process involves detecting the user's face, applying light enhancement techniques, and merging the improved face image with the original background for display.

Technical Advantages

Significant improvements in accuracy and efficiency set this system apart from existing solutions. The architecture of the machine-learning model allows for faster processing times while maintaining high-quality output. By utilizing innovative space-to-depth and depth-to-space layers, the system minimizes information loss during data processing, resulting in clearer images even under challenging conditions.

Comprehensive Distortion Correction

The restoration system is capable of addressing a wide range of distortions beyond just lighting issues. It corrects problems related to down-sampling, noise, and color distortion through a collaborative training approach between the autoencoder and distortion classifier. This targeted training enhances its performance in real-world scenarios, making it a versatile solution for improving video quality across various applications.