IMAGE RECONSTRUCTION INCLUDING SHIFT-VARIANT BLUR COMPENSATION

IMAGE RECONSTRUCTION INCLUDING SHIFT-VARIANT BLUR COMPENSATION

An image reconstruction method comprises reconstructing an image using an iterative reconstruction method and computing a projection used in the reconstructing by summing ray increments between neighboring planes (P0, P1, P2, . . . ) parallel with a detector face (42) with stationary incremental blu...

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Bibliographische Detailangaben
Hauptverfasser: SONG, XIYUN, SHAO, LINGXIONG, KING, MICHAEL, A, WANG, JIONG, MITRA MUKHERJEE, JOYEETA
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Beschreibung
Zusammenfassung:An image reconstruction method comprises reconstructing an image using an iterative reconstruction method and computing a projection used in the reconstructing by summing ray increments between neighboring planes (P0, P1, P2, . . . ) parallel with a detector face (42) with stationary incremental blurring associated with each ray increment computed based on a distance between the neighboring parallel planes. A non-stationary blurring kernel may also be convolved at a plane closest to the detector face to generate a projection incorporating shift-variant blurring.