Simulation results show that, the stopping time determined by this criterion is near-optimal according to best PSNR, and the new criterion adapts to a wide range of noise levels.

• 仿真计算结果表明采用该准则所得的停止时间非常接近于基于最优峰值信噪比所得的停止时间，且广泛适用于各种噪声水平。