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In SPECT the collimator and reconstruction algorithm both control image quality. For a given task, one might naturally seek that combination of collimator and algorithm parameters that maximizes task performance. Here, we use a brute force method to compute task performance over a joint space of collimator and algorithm parameters. Our interest is the task. We perform our brute force computation for...
In systems like SPECT, raw data is obtained by the imaging system and then reconstructed and viewed by a human observer. We compare two approaches to optimizing SPECT for a detection task with a known signal in a statistically varying background. In a sequential approach, we optimize the collimator using an ideal observer applied to the sinogram. We then optimize the regularization of the reconstruction...
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