Every specimen makes germiculture and bacterium colony computation.
每份标本作细菌培养和菌落计数。
The PBD algorithm needed to simultaneously estimate the specimen function and the parameters of the PSF, while the PSF model was complicated, needed a large number of computation and converged slowly.
由于PBD算法需要在估计样本函数的同时估计PSF的参数，一般采用的PSF的模型较为复杂，计算量大，收敛慢；
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