Geometry of the EOS(R) Radiographic Scanner

TL;DR

This paper discusses the geometric principles underlying the EOS(R) radiographic scanner, highlighting its hardware calibration for 3D reconstruction and its advantages in scoliosis diagnosis.

Contribution

It provides a detailed analysis of the geometric relationship between 3D space and radiographic images in the EOS(R) system, emphasizing its calibration and 3D imaging capabilities.

Findings

Hardware calibration enables accurate 3D reconstruction.

The system offers low-dose full-body imaging.

Facilitates precise scoliosis assessment.

Abstract

The EOS(R) scanner is a radiographic system that captures PA and lateral images in standing posture. The system is widely used in diagnosis and assessment of scoliosis, as it provides a low-dose alternative to traditional X-ray and can capture full-body images. Furthermore, spacial calibration between the two imaging views is implemented in hardware, facilitating 3D reconstruction of imaging targets. In this paper, a brief description of the system is followed by an explanation of the geometric relationship between 3D space and radiographic image space.