现代计算机(普及版)
現代計算機(普及版)
현대계산궤(보급판)
MODERN COMPUTER
2014年
10期
58-60
,共3页
脉冲噪声%中值滤波%自适应%峰值信噪比
脈遲譟聲%中值濾波%自適應%峰值信譟比
맥충조성%중치려파%자괄응%봉치신조비
Impulse Noise%Median Filtering%Adaptive%Peak Signal to Noise Ratio
针对图像受到电磁干扰带来的脉冲噪声,对自适应中值滤波方法进行改进。在去除噪声的过程中为了更好地将信号和噪声进行区分开,引入噪声点的预判机制。为满足改进算法对自适应中值滤波半径和窗口的变化的适应,采用自适应动态阈值。通过与SMF、RAMF等方法的比较实验表明,该算法具有较高的峰值信噪比和边缘保持性能。
針對圖像受到電磁榦擾帶來的脈遲譟聲,對自適應中值濾波方法進行改進。在去除譟聲的過程中為瞭更好地將信號和譟聲進行區分開,引入譟聲點的預判機製。為滿足改進算法對自適應中值濾波半徑和窗口的變化的適應,採用自適應動態閾值。通過與SMF、RAMF等方法的比較實驗錶明,該算法具有較高的峰值信譟比和邊緣保持性能。
침대도상수도전자간우대래적맥충조성,대자괄응중치려파방법진행개진。재거제조성적과정중위료경호지장신호화조성진행구분개,인입조성점적예판궤제。위만족개진산법대자괄응중치려파반경화창구적변화적괄응,채용자괄응동태역치。통과여SMF、RAMF등방법적비교실험표명,해산법구유교고적봉치신조비화변연보지성능。
To overcome the impulse noise caused by the electromagnetic interference, proposes an adaptive median filter method. In order to put the signal and noise are separated in the process of removing noise, introduces noise prediction mechanism. In order to adapt to the change of adaptive median filter radius and window, uses the adaptive dynamic threshold. The results of comparison experiments with SMF, RAMF demonstrate that the new algorithm has higher peak signal to noise ratio and edge preserving performance.