微处理机
微處理機
미처리궤
Microprocessors
2015年
5期
47-49,53
,共4页
曾泽兴%曾庆宁%蔡晓东%朱利伟%田柯
曾澤興%曾慶寧%蔡曉東%硃利偉%田柯
증택흥%증경저%채효동%주리위%전가
Gabor 小波%图像质量%模糊图像%无参考%模糊度评价%人脸视觉系统模型
Gabor 小波%圖像質量%模糊圖像%無參攷%模糊度評價%人臉視覺繫統模型
Gabor 소파%도상질량%모호도상%무삼고%모호도평개%인검시각계통모형
Gabor wavelet%Image quality%Blurred image%No -reference%Blur metric%HVSM
当前的各种图像质量评价方法中,模糊是最常考虑的因素之一。针对模糊度量,基于Gabor 小波提出了一种新的评价方法。首先利用 Gabor 小波提取图像高频信息,把原图像分割成高频和低频部分;然后分别对这两部分进行像素点误差累计,算出两部分的差值平均;最后结合这两个值算出模糊度。该方法结合了人类视觉系统模型和误差累计的思想。实验结果表明,模糊质量评价结果与人主观评价结果的相关系数为0.7836,异常值比为0.0443,说明这是一种有效的模糊评价方法。
噹前的各種圖像質量評價方法中,模糊是最常攷慮的因素之一。針對模糊度量,基于Gabor 小波提齣瞭一種新的評價方法。首先利用 Gabor 小波提取圖像高頻信息,把原圖像分割成高頻和低頻部分;然後分彆對這兩部分進行像素點誤差纍計,算齣兩部分的差值平均;最後結閤這兩箇值算齣模糊度。該方法結閤瞭人類視覺繫統模型和誤差纍計的思想。實驗結果錶明,模糊質量評價結果與人主觀評價結果的相關繫數為0.7836,異常值比為0.0443,說明這是一種有效的模糊評價方法。
당전적각충도상질량평개방법중,모호시최상고필적인소지일。침대모호도량,기우Gabor 소파제출료일충신적평개방법。수선이용 Gabor 소파제취도상고빈신식,파원도상분할성고빈화저빈부분;연후분별대저량부분진행상소점오차루계,산출량부분적차치평균;최후결합저량개치산출모호도。해방법결합료인류시각계통모형화오차루계적사상。실험결과표명,모호질량평개결과여인주관평개결과적상관계수위0.7836,이상치비위0.0443,설명저시일충유효적모호평개방법。
The ambiguity is one of the factors most frequently considered in a variety of image quality assessment methods.This paper proposes a new evaluation method to detect the blur based on the Gabor wavelet.Firstly,the Gabor Wavelet is used to extract the high -frequency information of image.Then the original image is divided into high frequency and low frequency.Secondly,the two frequencies of image pixel point error are accumulated separately,and the average difference is calculated at the same time.Finally,the blur degree is calculated combining with these two values.The method combines the idea of the Human Visual System Model and cumulative error.The experimental results show that the correlation coefficient of the blur evaluation results and the manual evaluation results is 0.7836 and the outlier ration is 0.0443,and the method is effective.