Semantic Clustering for Image Stylization Quality

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Solution Overview

Problem

Current methods for selecting example stylized images for image stylization often result in low-quality output images due to limitations in curated sets or large, uncurated collections, with manual curation being burdensome and inefficient.

Innovation Solution

A system that automatically selects example stylized images based on the semantic content of an input image using a large database of training images, which are not necessarily high-quality, to identify suitable images for stylization operations, by clustering images based on semantic similarity and ranking stylistic similarity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a curated set of example stylized images is used, then image quality is improved, but the diversity of semantic content is limited and manual curation effort increases

Engineering Contradiction:
Improveimage qualityVSAvoidsemantic content diversity
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

The system segments the large database of training images into multiple clusters based on semantic content using image clustering algorithms. Each cluster represents a specific semantic category (e.g., landscapes, portraits, architectural structures). This segmentation allows the system to efficiently retrieve high-quality example stylized images from relevant semantic clusters without requiring manual curation of the entire database, thus maintaining image quality while expanding semantic diversity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system introduces semantic clustering as an intermediary mechanism between the large database of training images and the example-based stylization process. The clustering algorithm automatically organizes images by semantic content, serving as a mediator that enables efficient retrieval of semantically appropriate high-quality example stylized images without manual intervention, resolving the contradiction between quality and diversity.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a large, un-curated collection of images is used, then semantic content diversity is improved, but image quality deteriorates due to varying levels of quality

Engineering Contradiction:
Improvesemantic content diversityVSAvoidimage quality
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The system performs preliminary organization of the large database of training images by applying image clustering algorithms to group images according to their semantic content before the stylization process. This preliminary action automatically filters and organizes the un-curated collection, enabling the retrieval of high-quality images from relevant semantic clusters while maintaining diversity, without requiring manual curation of the entire large database.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system enables the large database of training images to self-organize through automated clustering algorithms that group images by semantic content. This self-service mechanism allows the system to automatically identify and retrieve high-quality example stylized images from relevant semantic clusters within the large un-curated collection, maintaining both diversity and quality without manual intervention.

Inventive Principle:
Principle #25Self-service

3Manufacturing precision

If manual curation of example stylized images is performed, then image quality is improved, but time consumption and effort increase significantly

Engineering Contradiction:
Improveimage qualityVSAvoidmanual curation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system replaces the mechanical process of manual curation with automated image clustering algorithms. The clustering algorithm automatically analyzes and groups images by semantic content, enabling the system to retrieve high-quality example stylized images from relevant clusters without human intervention. This substitution eliminates time-consuming manual curation while maintaining image quality through algorithmic organization.

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

Solution Approach 2:

The system enables automatic self-organization of the training image database through clustering algorithms that autonomously group images by semantic content. This self-service mechanism allows the system to automatically identify and retrieve appropriate high-quality example stylized images based on the input image's semantic content, eliminating the need for manual curation and significantly reducing time consumption.

Inventive Principle:
Principle #25Self-service

4Productivity

If example-based stylization is applied without semantic matching, then processing speed is improved, but output quality deteriorates due to inappropriate style transfer

Engineering Contradiction:
Improveprocessing speedVSAvoidoutput image quality
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The system performs preliminary semantic analysis and clustering of the training image database before the stylization process. By pre-organizing images into semantic clusters, the system enables rapid retrieval of appropriate example stylized images during processing. This preliminary action maintains processing speed while ensuring output quality through semantically appropriate style transfer, as the system can quickly identify and apply styles from relevant semantic categories.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system applies local quality by selecting example stylized images from specific semantic clusters that match the input image's content characteristics. Instead of using a generic or random example stylized image, the system retrieves images from clusters with matching semantic properties (e.g., selecting landscape styles for landscape inputs). This localized selection based on semantic matching improves output quality while maintaining processing efficiency through automated cluster-based retrieval.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS9594977B2Automatically selecting example stylized images for image stylization operations based on semantic content
Publication Date: 2017.03.14 ADOBE INC
  • US9594977B2 patent drawing
  • US9594977B2 patent drawing
  • US9594977B2 patent drawing

AI summary

Systems and methods are provided for content-based selection of style examples used in image stylization operations. For example, training images can be used to identify example stylized images that will generate high-quality stylized images when stylizing input images having certain types of semantic content. In one example, a processing device determines which example stylized images are more suitable for use with certain types of semantic content represented by training images. In response to receiving or otherwise accessing an input image, the processing device analyzes the semantic content of the input image, matches the input image to at least one training image with similar semantic content, and selects at least one example stylized image that has been previously matched to one or more training images having that type of semantic content. The processing device modifies color or contrast information for the input image using the selected example stylized image.