A unified EM approach to bladder wall segmentation with coupled level-set constraints

- A new EM approach to the MAP solution of bladder wall segmentation is proposed.
- The prior in the MAP-EM algorithm relies on a newly developed adaptive MRF model.
- A penalty from the coupled level-set (CLS) is jointly incorporated into the prior.
- The MAP-EM classification and the CLS evolution are in a real interleaved manner.
- An effective wall segmentation facilitates the detection of bladder lesions.