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新的四元数解析信号相位定义
崔峰; 沈滨; 彭思龙,
Source Publication中国自动化与信息技术研讨会暨2004年学术年会
2004
Volume11(2)Issue:2006年02期Pages:251-258
Abstract解析信号的定义及瞬时频率、瞬时幅值的算法在信号处理的时频分析领域有着重要意义。四元数解析信号是1维解析信号的定义在2维上的合理延伸,但是现有的四元数解析信号的相位定义不适合分析2维信号的瞬时频率。为此根据四元数解析信号的自身特点提出了一种新颖的四元数解析信号相位定义,并应用两种2维信号分解工具验证了该定义的适用性。合成与自然纹理的试验结果表明,该相位定义更加符合信号的内在性质,更有利于对图像解析特征的提取与分类。
Other AbstractThe definition of analytic signal and the computation algorithm for instantaneous frequencies and instantaneous ampfitudes have important significance in signal processing domain The quaternfonie analytic signal is all appropriate extension of lD analytic signal to 2D cⅡBe Whereas.the existing phase definition of quaternionic analytic signal isn’t fit for extracting instaRtaneou$frequencies of images According to the properties of quatornionic analytic signal,a novel phase definition of quaternionic analytic signal is proposed in this paper and two decomposition tools are utilized to test the effectivene9s of the definition The experimental results of synthetic and natural textures indicate that the new definition is more coincident with image intrinsic characters and advantageous for image analytic feature extraction and classification
Keyword解析信号 / 四元数 / 经验模式分解(Emd) / gabor滤波器 / 纹理分析
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/12940
Collection智能制造技术与系统研究中心_多维数据分析
Corresponding Author崔峰
Recommended Citation
GB/T 7714
崔峰,沈滨,彭思龙,. 新的四元数解析信号相位定义[J]. 中国自动化与信息技术研讨会暨2004年学术年会,2004,11(2)(2006年02期):251-258.
APA 崔峰,沈滨,&彭思龙,.(2004).新的四元数解析信号相位定义.中国自动化与信息技术研讨会暨2004年学术年会,11(2)(2006年02期),251-258.
MLA 崔峰,et al."新的四元数解析信号相位定义".中国自动化与信息技术研讨会暨2004年学术年会 11(2).2006年02期(2004):251-258.
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