1 July 1990 Object detection and amplitude estimation based on maximum a-posteriori reconstructions
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Abstract
We report on the behavior ofthe linear maximum a posteriori (MAP) tomographic reconstruction technique as a function of the assumed rms noise αn in the measurements, which specifies the degree of confidence in the measurement data. The unconstrained MAP reconstructions are evaluated on the basis of the performance of two related tasks; object detection and amplitude estimation. It is found that the detectability of medium-sized discs remains constant up to relatively large αn before slowly diminishing. However, the amplitudes of the discs estimated from the MAP reconstructions increasingly deviate from their actual values as αn increases.
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Kenneth M. Hanson, Kenneth M. Hanson, } "Object detection and amplitude estimation based on maximum a-posteriori reconstructions", Proc. SPIE 1231, Medical Imaging IV: Image Formation, (1 July 1990); doi: 10.1117/12.18794; https://doi.org/10.1117/12.18794
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