GAN-Based Avatar Replacement with Attribute Preservation

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Solution Overview

Problem

Existing image processing technologies struggle to accurately replace avatars in images while retaining the original attributes of the avatars, leading to a lack of realism and efficiency in avatar reshaping applications.

Innovation Solution

An image processing model trained using a generative adversarial network (GAN) to replace avatars by learning the differences between target and sample avatars, while maintaining the original attributes, such as facial features and posture, through a process involving encoders and decoders to extract and decode feature vectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If existing image processing technologies are used to replace avatars, then the replacement process can be completed, but the realism and accuracy of the replaced avatar are insufficient

Engineering Contradiction:
Improveavatar replacement accuracyVSAvoidrealism of replaced avatar
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The patent implements a feedback mechanism through the discriminator that evaluates the authenticity of generated avatars. The discriminator provides feedback signals to the generator, guiding it to improve the realism of replaced avatars by distinguishing between real and generated images, thereby continuously enhancing both accuracy and reliability

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent combines multiple technical components including feature extraction modules, attribute preservation mechanisms, and GAN-based generation systems to create a composite image processing framework. This composite approach integrates different functional elements to simultaneously achieve high replacement accuracy and realistic output quality

Inventive Principle:
Principle #40Composite materials

2Productivity

If traditional image processing methods are applied, then the process can be executed, but the efficiency and productivity of avatar reshaping are low

Engineering Contradiction:
Improveavatar reshaping efficiencyVSAvoidprocessing time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent performs preliminary action by pre-extracting features from input images and pre-identifying attributes that need to be preserved before the actual avatar replacement. This preliminary processing prepares the data in advance, enabling faster and more efficient avatar reshaping execution

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent replaces traditional mechanical image processing methods with a neural network-based GAN system. This substitution uses learned patterns and automated decision-making to dramatically improve processing efficiency and reduce time loss compared to conventional algorithmic approaches

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If avatar replacement is performed without attribute retention, then the replacement can be completed, but the original characteristics of the input avatar are lost

Engineering Contradiction:
Improveavatar replacement capabilityVSAvoidoriginal avatar attributes
Core Design Contradiction:
Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent extracts and isolates specific attributes from the input avatar that need to be preserved, separating them from the replacement features. This extraction process identifies key characteristics such as facial structure, expression, and other defining features that should remain unchanged during avatar replacement

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies local quality by treating different regions and attributes of the avatar differently during replacement. While the identity and key features are replaced, specific local attributes are preserved through targeted processing, ensuring that important characteristics remain intact while achieving versatile replacement capability

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS12456169B2Image processing method and apparatus
Publication Date: 2025.10.28 TENCENT CLOUD COMPUTING (BEIJING) CO LTD
  • US12456169B2 patent drawing
  • US12456169B2 patent drawing
  • US12456169B2 patent drawing

AI summary

This disclosure relates to image processing method and apparatus. The method includes: processing, with a first generator in an image processing model, a first sample image in a first sample set to obtain a first predicted image; processing, with the first generator, a second sample image in a second sample set to obtain a second predicted image; and training the image processing model according to a difference between the target avatar in the first sample image and the first predicted avatar and a difference between a first type attribute of the sample avatar in the second sample image and a first type attribute of the second predicted avatar.