Facial Sketch Creation Using Feature Balance Classification

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Solution Overview

Problem

Existing facial sketch creation methods fail to accurately capture the balance of facial features, leading to difficulties in creating sketches that resemble the subject, as they primarily focus on enhancing individual characteristics without considering the overall impression.

Innovation Solution

A facial sketch creation device that classifies facial types based on the relative positions of facial features, generating configuration information to enhance the balance of features, thereby creating a more accurate and resemblance-like sketch.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If individual facial feature characteristics are enhanced independently, then the distinctive features of the subject are emphasized, but the balance and overall impression of the facial features deteriorates

Engineering Contradiction:
Improveaccuracy of facial characteristic enhancementVSAvoidbalance among facial features
Core Design Contradiction:
Measurement precisionVSStability of the object's composition

Solution Approach 1:

The patent combines multiple facial feature enhancement operations into a unified processing system that considers the overall facial balance. The characteristic point extraction and classification modules integrate information from multiple facial features to determine enhancement strategies that maintain facial harmony, rather than treating each feature independently.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent changes the parameters of facial feature positions and characteristics based on classified facial types. By identifying the overall facial type and adjusting multiple feature parameters simultaneously according to the classification results, the system achieves enhanced characteristics while maintaining facial balance and proportion.

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If facial features are modified to enhance individual characteristics, then the subject's unique features are highlighted, but the resemblance to the original subject deteriorates due to loss of overall balance

Engineering Contradiction:
Improveease of facial sketch creationVSAvoidresemblance to original subject
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent incorporates feedback mechanisms where the extracted characteristic points and classified facial types are used to guide subsequent enhancement operations. This feedback loop ensures that modifications are made in a way that maintains recognition of the original subject while enhancing distinctive features.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent performs preliminary extraction and classification of facial characteristic points before executing enhancement operations. This preliminary analysis establishes a framework for subsequent modifications, ensuring that the overall facial balance is maintained while individual characteristics are enhanced in a coordinated manner.

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If automatic line drawing processing is used, then the facial sketch creation process is simplified, but the ability to capture the essence and balance of facial features deteriorates

Engineering Contradiction:
Improvesimplicity of sketch creation processVSAvoidprecision of facial feature representation
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent replaces traditional manual sketching mechanisms with an automated image processing system that uses characteristic point extraction and classification algorithms. This substitution maintains simplicity of operation while achieving higher precision through computational analysis of facial feature relationships and balances.

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

Data Source

PatentUS8976182B2Facial sketch creation device, configuration information generation device, configuration information generation method, and storage medium
Publication Date: 2015.03.10 AX INC
  • US8976182B2 patent drawing
  • US8976182B2 patent drawing
  • US8976182B2 patent drawing

AI summary

A facial sketch creation device, a configuration information generation device, a configuration information generation method, and a storage medium that stores a computer program, which acquires position information for characteristic points that pertain to facial features within a facial image of a user, acquires a classification result in which the facial image has been classified as a facial type, using the position information for the characteristic points and based on relative positions of the facial features, and generates configuration information by taking an initial configuration that is based on the position information for the characteristic points and performing modification of the initial configuration by enhancing characteristics that indicate the classified facial type.