Diffusion Neural Network Text-Controlled Image Restoration

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Solution Overview

Problem

Existing text-driven diffusion models struggle with performing fine-level image processing tasks that require recovering details from degraded input images, such as denoising, super-resolution, and deblurring.

Innovation Solution

A diffusion neural network-based system that uses natural language to control the image restoration process, allowing users to specify restoration tasks through text prompts, and combines flexibility with state-of-the-art accuracy for various restoration tasks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If text-driven diffusion models are used for image editing tasks, then flexibility in controlling restoration effects is improved, but accuracy in recovering details from degraded images deteriorates

Engineering Contradiction:
Improveflexibility in controlling restoration effectsVSAvoidaccuracy in recovering details
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The patent applies a single diffusion neural network model that can perform multiple image restoration tasks (denoising, super-resolution, deblurring) by conditioning it on different text prompts. This universal model replaces the need for separate specialized models for each task, achieving both flexibility and accuracy through a unified architecture that processes degraded images and generates restored versions based on text instructions.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If multiple specialized models are used for different restoration tasks, then accuracy for each specific task is improved, but system complexity and computational cost increase

Engineering Contradiction:
Improveaccuracy for specific restoration tasksVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent consolidates multiple specialized restoration models into a single diffusion neural network that can handle various restoration tasks through text conditioning. This universal model reduces system complexity by eliminating the need for multiple separate models while maintaining high accuracy through the diffusion process and text-guided generation mechanism.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent changes the operational parameters of a single model by using different text prompts to condition the diffusion process for various restoration tasks. Instead of training separate models, the system adjusts the input conditions (text descriptions of degradation types) to achieve different restoration effects, thereby reducing model complexity while maintaining task-specific accuracy.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4571634A1Performing image restoration tasks using diffusion neural networks
Publication Date: 2025.06.18 GOOGLE LLC
  • EP4571634A1 patent drawingFigure 1
  • EP4571634A1 patent drawingFigure 2
  • EP4571634A1 patent drawingFigure 3

AI summary

Methods, systems, and apparatuses, including computer programs encoded on computer storage media, for performing image restoration tasks using a diffusion neural network.