# Sujets 6.2 : Smiths group
# Introduction
Presentation psr Clement Fang
- Ancien Image 2020
Serge Maitrejean
- Responsable de l'innovation
- Doctorat en physique
Eric Garrido
- Doctorat en physique nucleaire
Groupe Smiths
- Cote en bourse a Londres
- 4 divisions
- Smith detection: scanner et detection
- Detection de choses illicites ou non-declarees
![](https://i.imgur.com/slPVgpB.png)
En france:
- Base a Vitry-sur-Seine
- A peu pres 200 personnes
- IA / traitement d'image...
# High energy discrimination
- Same principle as an X-ray
- It looks like and X-ray
- but with an X-ray we only have grayscale information
![](https://i.imgur.com/7S9ouXj.png)
Plus un objet et dense et epais, plus il sera noir
![](https://i.imgur.com/spwENVI.png)
![](https://i.imgur.com/Zu9TwHr.png)
![](https://i.imgur.com/yrVneRA.png)
# Work to do
Improving the performance of the material discrimination project by:
- Better management of the overlay problem
- Creatin better quality of scans
## Overlay
- 2 ojects that overlay make the material detection wrong
- Find a method to segment the objects, then assign their atomic number
## Improve scan quality
Create a neural network to convert acquisition from low device to high
![](https://i.imgur.com/zmJkaoq.png)
## An AI that assigns the atomic number of objects
Create a color scale image with only the grayscale image
![](https://i.imgur.com/5DL4PU5.png)
## Provided
- Reference method
- Database
- Script to help for you for your tasks