One embodiment provides a method, including: receiving a dataset associated with a plurality of photon emission events interacting with a detector array of an imaging device； identifying a first subset of the dataset associated with a plurality of unscattered photon emission events from the plurality of photon emission events； identifying a second subset of the dataset associated with at least one scattered photon event from the plurality of photon emission events； determining, for a scattered photon event, a likely location of emission of the scattered photon event using data from the first subset of the dataset associated with the plurality of unscattered photon events； and correcting the dataset by associating the scattered photon event with the determined likely location of emission. Other aspects are described and claimed.
