发明授权
US07558709B2 Methods and apparatus for computing the input and output signals of a linear shift-variant system
失效
用于计算线性偏移变系统的输入和输出信号的方法和装置
- 专利标题： Methods and apparatus for computing the input and output signals of a linear shift-variant system
- 专利标题（中）： 用于计算线性偏移变系统的输入和输出信号的方法和装置
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申请号： US11235724申请日： 2005-09-26
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公开(公告)号： US07558709B2公开(公告)日： 2009-07-07
- 发明人: Muralidhara Subbarao
- 申请人： Muralidhara Subbarao
- 主分类号： G06F7/60
- IPC分类号： G06F7/60
摘要：
This invention is based on a new signal processing transform named Rao Transform (RT) which was invented recently by the author of the present invention. Forward RT provides a computationally efficient method and an associated apparatus for computing the output signal of a Linear Shift-Variant System (LSVS) from the input signal and a set of moment parameters of the linear Shift-Variant Point Spread Function (SV-PSF) that characterizes the LSVS. Inverse RT provides a computationally efficient method and an associated apparatus for computing the input signal or restored signal of an LSVS from the output signal and a set of moment parameters of the linear SV-PSF that characterizes the LSVS. This invention is useful in many applications including the restoration of defocus blurred and motion blurred images recorded by a camera with a linear SV-PSF. The apparatus include means for computing forward and inverse RT coefficients.