Comparison of baseline drifts using three reflector blocks versus using a single reflector block for the calibration of wall‐mounted Respiratory Gating for Scanner (RGSC) camera integrated with a CT LIU et al.

Abstract

2## MATERIALS AND METHODS Recently, City of Hope Comprehensive Cancer Center installed two Respiratory Gating for Scanner (RGSC Ver 1.1) paired with Siemens SOMATOM go.Open Pro CT scanner. An infrared camera was mounted on the wall for each system. Instead of moving a single marker block around and repositioning it on the nine points of the calibration plate, our calibration method uses three marker blocks to remove the positioning uncertainty. Figure [acm214199-fig-0003] shows the initial setup of the three-marker block method: one marker block was placed on point #1 of the calibration plate