TY  - JOUR
AU  - Brown, J. M. C.
AU  - Gillam, J. E.
AU  - Paganin, D. M.
AU  - Dimmock, M. R.
PY  - 2013
DA  - 2013//
TI  - Laplacian Erosion: An Image Deblurring Technique for Multi-Plane Gamma-Cameras
T2  - IEEE Trans. Nucl. Sci.
JO  - IEEE Transactions on Nuclear Science
SP  - 3333
EP  - 3342
VL  - 60
IS  - 5
AB  - Laplacian Erosion, an image deblurring technique for multi-plane Gamma-cameras, has been developed and tested for planar imaging using a GEANT4 Monte Carlo model of the Pixelated Emission Detector for RadioisOtopes (PEDRO) as a test platform. A contrast and Derenzo-like phantom composed of I-125 were both employed to investigate the dependence of detection plane and pinhole geometry on the performance of Laplacian Erosion. Three different pinhole geometries were tested. It was found that, for the test system, the performance of Laplacian Erosion was inversely proportional to the detection plane offset, and directly proportional to the pinhole diameter. All tested pinhole geometries saw a reduction in the level of image blurring associated with the pinhole geometry. However, the reduction in image blurring came at the cost of signal to noise ratio in the image. The application of Laplacian Erosion was shown to reduce the level of image blurring associated with pinhole geometry and improve recovered image quality in multi-plane Gamma-cameras for the targeted radiotracer I-125.
SN  - 0018-9499
UR  - https://doi.org/10.1109/TNS.2013.2264946
DO  - 10.1109/TNS.2013.2264946
N1  - WOS:000325827200020
ID  - Brown_etal2013
ER  -