Subjective evaluation of contrast resolution on different digital imaging systems

  title={Subjective evaluation of contrast resolution on different digital imaging systems},
  author={Sabrina Carla Do Prado and Carlos Augusto Souza Lima and Deborah Queiroz Freitas and Matheus Lima Oliveira and F HaiterNeto},
Since contrast resolution of current radiographic systems exceed human visual perception, the aim of this study was to subjectively evaluate the contrast resolution of different digital radiographic systems. Five radiographic phantoms were prepared containing a solution of dipotassium phosphate (K2HPO4) in 6 different volumes. Each phantom presented the solutions of K2HPO4 in a different sequence and was X-rayed with 5 digital radiographic systems: Digora Toto, Digora Optime, Snapshot, Express… Expand


Contrast curves of five different intraoral X-ray sensors: a technical note.
The contrast transfer function assessment used in the study confirmed that the spatial frequency at 10% contrast was much lower than the theoretical resolution computed from the pixel size. Expand
Recent advances in imaging technologies in dentistry.
Current advances in imaging technology and their uses in different disciplines of dentistry are reviewed. Expand