Geometry of the EOS(R) Radiographic Scanner

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.