PET scanner and sinogram geometry examples

These examples introduce the geometry objects that every projector is built from: cylindrical regular-polygon scanners and modular block scanners, how detector lines of response (LORs) map to sinogram bins, axial compression via the Michelogram (span and maximum ring difference), and sinogram symmetries. Start here to understand the building blocks used throughout the other galleries.

Regular polygon PET scanner geometry

Regular polygon PET scanner geometry

LOR descriptors and sinogram definition

LOR descriptors and sinogram definition

Modularized (block) PET scanner geometry

Modularized (block) PET scanner geometry

Michelograms and axial sinogram compression

Michelograms and axial sinogram compression

Zig-zag sampling of LORs in a sinogram view

Zig-zag sampling of LORs in a sinogram view

Sinogram symmetries

Sinogram symmetries

Detector mashing: fewer, bigger virtual detectors

Detector mashing: fewer, bigger virtual detectors

TOF-bin mashing: fewer, wider time-of-flight bins

TOF-bin mashing: fewer, wider time-of-flight bins