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WORKSHOP DESCRIPTION

Welcome to the 3D scanning workshop for craniofacial identification! In this educational event, we will explore two fundamental approaches to three-dimensional capture of bone elements: 3D scanning using structured light scanners and photogrammetry.

OBJECTIVES

• Provide a comprehensive overview of how these technologies revolutionize three-dimensional analysis in the fields of forensic anthropology and craniofacial identification
• Objective 1: Understand the Fundamentals of 3D Scanning with Structured Light
  • Explore the basics of 3D scanning with structured light, identifying its inherent advantages and disadvantages
  • Analyze closely the features and technical specifications of equipment such as Artec Space Spider, Leo, Eva, and Micro used in 3D scanning
  • Address the specific application of 3D scanning with structured light in craniofacial superimposition, highlighting use cases and practical examples
  • Enhance understanding through live demonstrations of the 3D scanning process and the subsequent processing of captured elements with Artec Studio software
• Objective 2: Explore the Principles of Photogrammetry Applied to Craniofacial Superimposition and Facial Comparison
  • Break down the fundamental concepts of photogrammetry, evaluating its advantages and disadvantages compared to other 3D scanning approaches
  • Immerse in the features and technical specifications of hardware, highlighting equipment such as Dimensional Imaging DID4, Photorobot, and homemade photogrammetry systems
  • Demonstrate the scanning of skulls and jaws using the Photorobot system, with a specific focus on craniofacial superimposition
  • Provide basic notions of the workflow for processing captured data using software such as Metashape and Meshroom
  • Explore the application of facial scanning in facial comparison using the DID4 system from Dimensional Imaging

PROGRAM OUTLINE

In the first section, we will delve into the basics of 3D scanning with structured light, highlighting the advantages and disadvantages inherent in this method. We will closely analyze the features and technical specifications of hardware, including equipment such as Artec Space Spider, Leo, Eva, and Micro. Additionally, we will address its specific application for craniofacial superimposition. The experience will be enriched with live demonstrations of the 3D scanning process and the subsequent processing of captured elements using Artec Studio software, showcasing examples such as skulls, jaws, teeth, etc.

In the second part of the workshop, we will explore the fascinating world of photogrammetry. We will break down the fundamental concepts of this approach, evaluating its advantages and disadvantages. We will immerse ourselves in the features and technical specifications of hardware, highlighting equipment such as Dimensional Imaging DID4, Photorobot, or homemade photogrammetry systems. With a specific focus on craniofacial superimposition, we will demonstrate the scanning of skulls and jaws using the Photorobot system. Basic notions of the workflow for processing captured data using software such as Metashape or Meshroom will be provided. The workshop will culminate in the exploration of facial scanning for its application in facial comparison using the DID4 system from Dimensional Imaging.

Join us in this educational journey to immerse yourself in advanced 3D scanning techniques and discover how these technologies revolutionize craniofacial superimposition and forensic anthropology. We look forward to exploring the future of three-dimensional analysis with you!

WORKSHOP DESCRIPTION

Machine Learning (ML) studies the development of computer algorithms that can learn to solve a problem from examples. While ML is at the heart of most modern Artificial Intelligence technologies, its adoption in Physical Anthropology is still quite limited. This workshop will enable you to address this situation. First, by overcoming the technological barrier, through a gentle introduction to friendly ML software. Second, by providing a solid understanding of the key concept of ML, which allows you to avoid the most common mistakes in the design of experiments and the interpretation of their results.

OBJECTIVES

• Understand the basics of Machine Learning and its potential in Anthropology
• Learning the key concepts in designing an experimental study
• Put the theory into practice with real-world applications

RESOURCES

• Sample/Synthetic datasets of forensic data for different applications
• TBD: Virtual machine/docker with code editor and python and libraries OR

PROGRAM OUTLINE

• Introduction to Machine Learning
  • Common tasks: classification and regression
  • Understanding models
  • Model complexity and overfitting
• Designing experiments
  • Training and testing, cross-validation
  • Comparing results
  • Practical and statistical significance
• Practical Exercises using Python and sklearn

WORKSHOP DESCRIPTION

Unlock the future of forensic investigation at our cutting-edge workshop, where the realms of Forensic Facial Comparison and Artificial Intelligence converge. This unique session is designed for professionals and enthusiasts alike, offering an immersive exploration into the dynamic synergy between facial forensics and the latest advancements in AI technology.

OBJECTIVES

• Gain a comprehensive understanding of the principles of forensic facial comparison
• Understand the challenges and potential biases associated with AI-driven facial comparison and learn strategies to address them
• Acquire a fundamental knowledge of Artificial Intelligence and its transformative impact on forensic science

PROGRAM OUTLINE

1. Introduction to Forensic Facial Comparison:

• Understanding the principles of facial recognition in forensic investigations
• Exploring the standard facial comparison techniques
• Analyzing practical recommendations from international working groups

2. AI in Forensic Science: A Paradigm Shift:

• Delving into the transformative impact of Artificial Intelligence on forensic practices
• Exploring the latest innovations and 3D technologies shaping the future of facial analysis in forensic science
• Interactive session with 3D scenarios to understand the relevance of the camera model

3. Emerging Technologies in Forensic Facial Analysis:

• Filtering candidates with AI-based photo-anthropometry
• Understanding the capabilities of 3D/2D facial superimposition
• Unpacking the statistical foundations of facial variability to describe facial morphology
• Live Demos and Practical exercises:
  • Interactive sessions with state-of-the-art tools powered by AI
  • Hands-on exercises to enhance participants’ practical skills in forensic facial comparison

Join us at this workshop to gain invaluable insights, enhance your skill set, and be at the forefront of the intersection between Forensic Facial Comparison and Artificial Intelligence.

WORKSHOP DESCRIPTION

Attendees will learn the basic concepts and foundations of Craniofacial Superimposition, as well as its relevance as a skeleton-based identification technique, form a basic concept of the camera parameters involved in the process of taking a photograph and understand a novel approach to Craniofacial Superimposition as a camera calibration problem.

OBJECTIVES

This workshop will cover the fundamentals of Craniofacial Superimposition (CFS), from the origins of the technique to state of the art in AI-driven approaches, while providing the participants with an overview of its reliability, strengths and weaknesses, and the most recent validation studies carried out.

It will combine lectures followed by hands-on using the first dedicated software, Skeleton-ID, which includes AI-based methods to automate the majority of the CFS stages. In particular, we will learn how to locate craniofacial landmarks on a skull 3D model and cephalometric landmarks on a photograph,as well as to perform 3D-2D skull-face overlays. During the hands-on, attendees will learn how to evaluate similarities and discrepancies in craniofacial morphological and anatomical features as well as the key criteria to evaluate the correspondence between a skull and a facial image, including dental features. They will also become familiar with current standards and best practices in this technique, proposed by the MEPROCS consortium, as part of the speakers were key members of this international group.

PROGRAM OUTLINE

Presentation:

• Introduction to the workshop and speakers
• Results of the survey
• Learning objectives and schedule

Introduction to Craniofacial Superimposition:

• Foundations of the technique
• Soft tissue depth studies
• Landmark vs morphological analysis approaches
• Craniofacial relationships – introduction
• History and technological development
• Photo CFS, Video CFS, computer aided CFS
• The MEPROCS consortium

Hands-on:

• Introduction to dedicated CFS software – navigation and tools
• Placing cephalometric landmarks on a photograph
• Placing craniometric landmarks on a skull 3D model
• Skull-Face Overlay as a camera calibration problem
• Photograph parameters: camera rotation, focal length, subject-camera distance, principal point
• Automatic SFO: camera calibration, pairs of landmarks, soft tissue depth studies
• Skull-Face Overlay exercises
• Evaluation of the Skull-Face Overlay and decision-making
• Craniofacial anatomical relationships
• Analysis of morphological correspondences
• Evaluation of criteria and decision making
• Reaching a final identification decision and generating a report

WORKSHOP DESCRIPTION

In this workshop, AP Stephan will introduce delegates to the programming environment of R (and its power!) at a basic level and within just 2hrs so that upon leaving the workshop participants have the tools to begin programming their own basic projects. Delegates will be walked through the basic steps of R and R programming that are enabling for data analysis, in hands on sessions – so bringing your own laptop with base-R preinstalled is a must and don’t be surprised that you will be in control of telling R what to do following Carl’s lead. The emphasis will be on R as a data processing and programming environment, not just a statistical tool for running statistical tests. If you want to learn some programming or R, but have stalled or not yet taken the plunge, this workshop is for you! After whetting your appetite with some basic functions/commands and seeing how much you can achieve in a short time with only a few lines of code, you will be craving for more! Only your brain will be the limit of what you can do with R!

OBJECTIVES

• Gain a comprehensive understanding of the principles of forensic facial comparison
• Understand the challenges and potential biases associated with AI-driven facial comparison and learn strategies to address them
• Acquire a fundamental knowledge of Artificial Intelligence and its transformative impact on forensic science