Related Experiment Video
Updated: Jul 5, 2026
09:49
Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
Published on: December 24, 2015
Prototypes of facial attributes developed through image averaging techniques
S S Hawkins1, D I Perrett, D M Burt
1Unilever Research US, Edgewater, NJ, USA.
International Journal of Cosmetic Science
|May 29, 2008
Summary
This study quantifies facial changes using image analysis. Facial prototypes created from expert ratings help assess skin care product effects on appearance.
Area of Science:
- Computer vision
- Dermatology
- Aesthetics
Background:
- Image capture and quantification are valuable across scientific fields.
- Assessing clinical and consumer-perceivable facial changes requires robust methods.
Purpose of the Study:
- To quantify clinical and consumer-perceivable changes in facial attributes using image analysis.
- To develop and validate a methodology for assessing facial attribute changes.
Main Methods:
- Trained expert assessors identified and graded 19 facial attributes in over 240 subjects.
- Facial prototypes were created by averaging faces based on expert ratings for specific attributes.
- A 3-step process involved feature point selection, average face shape calculation, and image morphing/blending.
Main Results:
- Naive assessors could discern differences between facial prototypes.
- Expert graders could identify the general class of facial attribute affected by the prototypes.
- The developed method demonstrated effectiveness in differentiating facial attribute variations.
Conclusions:
- The image analysis methodology provides a powerful tool for quantifying facial attribute changes.
- This approach is suitable for assessing the effects of skin care technologies and other interventions.
- Objective quantification of subjective facial perceptions is achievable through advanced image processing.
Related Concept Videos
01:24Facial Feedback Hypothesis
Charles Darwin proposed that facial expressions are an evolutionary adaptation for communication. He argued that these expressions are not influenced by culture but are universal across species. For example, a snarling expression with exposed teeth signals a threat in many animals, including humans. Darwin also suggested that displaying an emotion can intensify the feeling. Smiling, for example, could enhance one's sense of happiness. This idea laid the foundation for understanding the role of...
01:14Muscles for Facial Expressions
The craniofacial muscles are a collection of approximately 20 thin skeletal muscles situated beneath the skin of the face and scalp. These muscles, primarily responsible for the vast array of human facial expressions, originate from the bones or fibrous structures of the skull and extend outwards to connect with the skin. While most skeletal muscles in the body are enveloped in thick fascia, facial muscles generally have a more delicate fascial covering, with the buccinator muscle being a...
01:21Association Areas of the Cortex
Association areas are regions of the cerebral cortex that do not have a specific sensory or motor function. Instead, they integrate and interpret information from various sources to enable higher cognitive processes such as memory, learning, and decision-making. Some key association areas include the following:
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
01:30Assessment of Airway, Skin Color, and Use of Accessory Muscles
A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
Introduction
The initial evaluation of a patient's respiratory system...
01:12Modeling and Similitude
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
02:13The Representativeness Heuristic
The representative heuristic describes a biased way of thinking, in which you unintentionally stereotype someone or something. For example, you may assume that your professors spend their free time reading books and engaging in intellectual conversation, because the idea of them spending their time playing volleyball or visiting an amusement park does not fit in with your stereotypes of professors.