It brings inconvenience to the later processing for the introduced noises while in the acquirement of CCD image, thus image denoise is necessary.
CCD图像在其获取过程中由于噪声引入而给别的处理带来不便，因而对其进行降噪处理是一项至关重要的工作。
The problem of signal processing in north-finders has been studied. The wavelet-based hidden Markov models (WHMM) are used to denoise the Gyros output signals in continuous rotary north-finders.
研究寻北仪惯性传感器信号处理问题，采用基于小波域的隐马尔可夫模型(WHMM)，对连续旋转式寻北仪陀螺的输出信号进行降噪处理。
The problem of signal processing in north-finders has been studied. The wavelet-based hidden Markov models (WHMM) are used to denoise the Gyros output signals in continuous rotary north-finders.
研究寻北仪惯性传感器信号处理问题，采用基于小波域的隐马尔可夫模型(WHMM)，对连续旋转式寻北仪陀螺的输出信号进行降噪处理。
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