I'm not sure what the point this article is trying to make. The image isn't the data for a lot of imaging modalities. The process of image reconstruction is translation from raw signal to image in any modality.
Gaining access to raw data is difficult. For example, if I want access to raw projection data on CT, it requires specific research keys and agreements with the vendor. A typical end user, like a hospital, cannot get to this raw data as part of a standard purchase.
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