Compton moving imaging method based on prior scene model

• Main Authors: GAO HUAIZHONG, FAN QING, LI DEYUAN, CHEN FAGUO, LI HUA, CAO QINJIAN, LI HUI, WANG CHONGYANG, LIU LIYE, YANG BIAO, WANG XIAOLONG, LI YAN, XIA SANQIANG
• Format: Patent
• Language: Chinese; English
• Published: 28.05.2024
• Subjects: GYROSCOPIC INSTRUMENTS; MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

The invention relates to a prior scene model-based Compton mobile imaging method, which comprises the following steps of: assembling a Compton camera and a pose sensor, determining a relative position of an imaging center of the Compton camera and a measurement center of the pose sensor, and establishing a translation mapping relation between a Compton camera coordinate system and a pose sensor coordinate system; acquiring gamma photon scattering event data and equipment pose data which are sequenced by time through a Compton camera; converting a gamma photon scattering event coordinate under a Compton camera coordinate system into a gamma photon scattering event coordinate under a pose sensor coordinate system; converting the gamma photon scattering event coordinates in the pose sensor coordinate system into gamma photon scattering event coordinates in a three-dimensional imaging space coordinate system; and reconstructing a gamma photon scattering event in a three-dimensional imaging space coordinate system